JP2012217622A - Method of manufacturing dental occlusion face part for replacement of artificial posterior tooth - Google Patents

Method of manufacturing dental occlusion face part for replacement of artificial posterior tooth Download PDF

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JP2012217622A
JP2012217622A JP2011086391A JP2011086391A JP2012217622A JP 2012217622 A JP2012217622 A JP 2012217622A JP 2011086391 A JP2011086391 A JP 2011086391A JP 2011086391 A JP2011086391 A JP 2011086391A JP 2012217622 A JP2012217622 A JP 2012217622A
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occlusal surface
replacement
data
surface portion
manufacturing
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Takanobu Tanaka
貴信 田中
Michio Okada
通夫 岡田
Hiroyuki Nakajima
浩之 中島
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GC Dental Products Corp
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GC Dental Products Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a method for obtaining a dental occlusion face part having a dental occlusion face side shape with the use of an artificial posterior tooth where the dental occlusion face part and a bottom part are temporarily joined by a joint part in order to obtain functional dental occlusion, and then, rapidly manufacturing, based on the obtained dental occlusion face part, the dental occlusion face part for replacement, which is different from the dental occlusion face part and is constituted of a replacement material with excellent wear resistance, by highly accurately following a difference in the dental occlusion face side shape of the dental occlusion face part with the functional dental occlusion attained therein.SOLUTION: The method is for manufacturing the dental occlusion face part for replacement for the dental occlusion face part with the functional dental occlusion attained therein with the use of a CAD/CAM system. The CAD system includes a process to acquire design data corresponding to the replacement material of the dental occlusion face part for replacement, based on three-dimensional shape data of the dental occlusion face part. The CAM system includes a process to acquire CAM data of the dental occlusion face part for replacement corresponding to a dental occlusion face part for replacement manufacturing means, based on the design data. The dental occlusion face part for replacement manufacturing means includes a process to manufacture the dental occlusion face part for replacement under control according to the CAM data.

Description

この発明は、人工臼歯の置換用咬合面部の作製方法に関するものである。さらに詳しくは、この発明は、機能咬合が得られた咬合面部と底部との二重構造を有する人工臼歯の前記咬合面部とは異なる耐摩耗性に優れた置換材料からなる置換用咬合面部をＣＡＤ／ＣＡＭシステムによって製造する方法に関するものである。   The present invention relates to a method for producing an occlusal surface part for replacement of an artificial molar. More specifically, the present invention relates to a replacement occlusal surface portion made of a replacement material excellent in wear resistance different from the occlusal surface portion of an artificial molar tooth having a double structure of an occlusal surface portion and a bottom portion where functional occlusion is obtained. The present invention relates to a method of manufacturing by a CAM system.

合成樹脂、または合成樹脂とセラミックの複合材料の何れかからなり、機能咬合の印記が得られた後に取り外されて金属、セラミック、コンポジットレジン等の中より選ばれた材料に置換される咬合面部と、合成樹脂、セラミック、合成樹脂とセラミックとの複合材料の何れかである底部との二重構造よりなる、例えば、図１３に示される人工歯が開発されている（特許文献１）。   An occlusal surface portion made of either a synthetic resin or a composite material of a synthetic resin and a ceramic, which is removed after a functional occlusion mark is obtained and replaced with a material selected from metal, ceramic, composite resin, etc. For example, an artificial tooth shown in FIG. 13 has been developed which has a double structure with a bottom portion which is a synthetic resin, ceramic, or a composite material of synthetic resin and ceramic (Patent Document 1).

図１３は、機能咬合を得るための咬合面部５１と底部５２とが接合部５３で仮接合された下顎第１大臼歯用の人工臼歯５４を示している。咬合面部５１は裏側に維持突起５５を備えている。咬合面部５１の外形形状は、機能咬合を得るための咬合面側形状と底部５２との合わせ面側形状を有する。咬合面部５１と底部５２との間に分離用フィルム５６を介在させ、維持突起５５を底部５２の凹部５７に嵌合させた状態で、咬合面部５１と底部５２とが接合部５３で仮接合されている。接合部５３は人工臼歯５４の頬・舌側にそれぞれ設けられている。分離用フィルム５６に代え、分離用離型剤を底部５２に設けてもよい。
機能咬合を得るための咬合面部５１と底部５２とが接合部５３で仮接合された人工臼歯は、各臼歯毎に、複数形状、複数サイズ、複数色調等を組み合わせた種類をメーカー側で製造し、歯科医院、歯科技工所等に提供し、患者に応じて適宜選択されて使用される。 FIG. 13 shows an artificial molar 54 for the first molar of the lower jaw in which an occlusal surface 51 and a bottom 52 for obtaining a functional occlusion are temporarily joined by a joint 53. The occlusal surface 51 is provided with a maintenance projection 55 on the back side. The outer shape of the occlusal surface 51 has an occlusal surface side shape for obtaining a functional occlusion and a mating surface side shape of the bottom 52. The occlusal surface part 51 and the bottom part 52 are temporarily joined at the joint part 53 in a state where the separation film 56 is interposed between the occlusal part 51 and the bottom part 52 and the maintenance projection 55 is fitted in the concave part 57 of the bottom part 52. ing. The joint portions 53 are provided on the cheek and lingual sides of the artificial molars 54, respectively. Instead of the separation film 56, a separation release agent may be provided on the bottom 52.
The artificial molars in which the occlusal surface part 51 and the bottom part 52 for obtaining the functional occlusion are temporarily joined at the joint part 53 are manufactured on the manufacturer side by combining various shapes, sizes, colors, etc. for each molar tooth. It is provided to dental clinics, dental laboratories, etc., and is appropriately selected and used according to the patient.

図１４は、下顎第１大臼歯用の人工臼歯５４の基底面が義歯床５９に埋設された義歯６０を示し、これを患者が通常の生活における食物を介しての自然の咀嚼（通常咀嚼）を１週間から１ヵ月間行ない、咬合面側が摩耗し、患者にとって最適な機能咬合の印記が得られたと判断したら、仮接合されている頬側と舌側の接合部５３を研摩用のレジンポイントで削除し、咬合面部５１を人工臼歯５４の底部５２から取り外す。そして、分離用フィルム５６は取り除く。分離用離型剤の場合は適宜の工具で剥離させて、除去する。次いで、取り外した咬合面部５１を金属等の置換材料からなる置換用咬合面部に置換する。例えば、置換材料が金属やキャスタブルセラミックの場合、咬合面部５１にスプルーを付与し通法に従って耐火性の型材で埋没し、金属やキャスタブルセラミックの置換用咬合面部を鋳造する。鋳造した置換用咬合面部は通法に従ってサンドブラストと最終仕上げ研摩を行なう。得られた置換用咬合面部は、義歯６０の人工臼歯５４の底部５２と歯科用接着材を用いて接着する。置換材料がコンポジットレジン等の場合、石膏や印象材で咬合面部５１の精密な陰型を作り、通法に従ってコンポジットレジン等を硬化させ、置換用咬合面部を得る。得られた置換用咬合面部は、義歯６０の人工臼歯５４の底部５２と歯科用接着材を用いて接着する。このようにして得られた機能咬合するメタル、キャスタブルセラミック、コンポジットレジン等からなる置換用咬合面部を有する人工歯は、非常にバランスが良く耐久性に優れている。   FIG. 14 shows a denture 60 in which the base surface of the artificial molar 54 for the first molar of the lower jaw is embedded in the denture base 59, and the patient can naturally chew it through food in normal life (normal chewing). 1 week to 1 month, the occlusal side wears and it is determined that the optimal functional occlusion mark is obtained for the patient. The temporarily bonded buccal and lingual joint 53 is a resin point for polishing. And the occlusal surface 51 is removed from the bottom 52 of the artificial molar 54. Then, the separation film 56 is removed. In the case of a release agent for separation, it is removed by peeling with an appropriate tool. Next, the removed occlusal surface 51 is replaced with a replacement occlusal surface made of a replacement material such as metal. For example, when the replacement material is a metal or a castable ceramic, a sprue is applied to the occlusal surface portion 51 and buried in a fire-resistant mold according to a common method, and the replacement occlusal surface portion of the metal or castable ceramic is cast. The cast occlusal surface for replacement is subjected to sand blasting and final polishing according to a conventional method. The obtained replacement occlusal surface is bonded to the bottom 52 of the artificial molar 54 of the denture 60 using a dental adhesive. When the replacement material is a composite resin or the like, a precise negative mold of the occlusal surface portion 51 is made of gypsum or an impression material, and the composite resin or the like is cured according to a common method to obtain a replacement occlusal surface portion. The obtained replacement occlusal surface is bonded to the bottom 52 of the artificial molar 54 of the denture 60 using a dental adhesive. The artificial tooth having a replacement occlusal surface portion made of a functional occlusion metal, castable ceramic, composite resin and the like thus obtained is very balanced and excellent in durability.

しかしながら、機能咬合を得るための咬合面部と底部とが接合部で仮接合された人工臼歯を用いて、咬合面部に機能咬合を得た後、得られた咬合面部に基づき、耐摩耗性に優れた置換材料からなる置換用咬合面部を製造することは、患者毎に適した機能咬合の得られた咬合面部の咬合面側形状が異なり、また、前記したように、金属やキャスタブルセラミックでは、咬合面部へのスプルー付与を初めとする多くの手作業を必要とし、コンポジットレジン等では咬合面部の陰型作製を初めとする多くの手作業を必要とし、時間がかかる。また、これらの置換用咬合面部は、高い寸法精度が要求されるため、歯科技工士の高い技能を必要とするが、歯科技工士の熟練度によるばらつきがあることから、必ずしも満足の行く、置換用咬合面部が得られていない状況にある。   However, after obtaining a functional occlusion on the occlusal surface part using an artificial molar whose occlusal surface part and bottom part for obtaining a functional occlusion were temporarily joined at the joint part, the wear resistance is excellent based on the obtained occlusal surface part. Manufacturing a replacement occlusal surface made of a replacement material is different in the shape of the occlusal surface of the occlusal surface where a functional occlusion suitable for each patient is obtained, and as described above, in the case of metal or castable ceramic, A lot of manual work including sprue application to the surface part is required, and a composite resin or the like requires a lot of manual work including a negative production of the occlusal surface part, which takes time. In addition, these replacement occlusal surface portions require high dimensional accuracy, and thus require high skills of dental technicians. However, there are variations depending on the level of proficiency of dental technicians, so replacement is always satisfactory. The occlusal surface part is not obtained.

特許第２６９４２２３号公報Japanese Patent No. 2694223

この発明は、上記のような実情に鑑み鋭意研究の結果創案されたものであり、機能咬合を得るための咬合面部と底部とが接合部で仮接合された人工臼歯を用いて、患者毎に異なる咬合面側形状を有する咬合面部を得た後、得られた咬合面部に基づき、咬合面部と異なる耐摩耗性に優れた置換材料からなる置換用咬合面部を、歯科技工士の高い技能や熟練を要しなくても、患者毎に異なる機能咬合の得られた咬合面部の咬合面側形状の相違にも高精度に追従して迅速に製造することのできる方法を提供することを目的としている。   This invention was devised as a result of diligent research in view of the above situation, and for each patient using an artificial molar in which the occlusal surface part and the bottom part for obtaining functional occlusion were temporarily joined at the joint part. After obtaining an occlusal surface portion having a different occlusal surface side shape, based on the obtained occlusal surface portion, a replacement occlusal surface portion made of a replacement material having excellent wear resistance, which is different from the occlusal surface portion, can be used by a dental technician with high skill and skill. The purpose of the present invention is to provide a method that can be manufactured quickly with high accuracy following the difference in occlusal surface side shape of the occlusal surface where different functional occlusions are obtained for each patient. .

上記課題を解決するために、この発明は、（１）合成樹脂、または合成樹脂とセラミックの複合材料の何れかからなり、機能咬合が得られた咬合面部と底部との二重構造を有し、前記咬合面部と底部が接合部で接合された人工臼歯の前記咬合面部と置換するための金属、セラミック、コンポジットレジンの中より選ばれた置換材料からなる置換用咬合面部をＣＡＤ／ＣＡＭシステムを利用して製造する方法であって、ＣＡＤシステムが、前記咬合面部の三次元形状データに基づき置換用咬合面部の置換材料に応じた設計データを取得する工程、ＣＡＭシステムが、前記設計データに基づき置換用咬合面部製造手段に応じた置換用咬合面部のＣＡＭデータを取得する工程、置換用咬合面部製造手段が、前記ＣＡＭデータに基づき制御され置換用咬合面部を製造する工程を含むことを特徴とする。
この発明における置換材料である「金属」としては、チタン、コバルトクロム合金を例示することができるが、これ等に限られるものではない。
この発明における置換材料である「セラミック」としては、ジルコニア、アルミナを例示することができるが、これ等に限られるものではない。
（２）前記（１）において、前記咬合面部の三次元形状データが、前記機能咬合が得られた咬合面部と底部との二重構造を有する人工臼歯の接合部が削除されて前記底部から取り外された前記咬合面部の咬合面側形状と底部との合わせ面側形状を含む全体形状が計測手段により計測された計測データに基づいてＣＡＤシステムで取得された三次元形状データであることが好ましい。
（３）前記（１）において、前記咬合面部の三次元形状データが、前記機能咬合が得られた咬合面部と底部との二重構造を有する人工臼歯の前記接合部の形状を含む前記咬合面部の咬合面側形状が計測手段により計測された計測データに基づく三次元形状データと、記憶部から読み出された機能咬合の印記前の設計段階における前記咬合面部の底部との合わせ面側形状に対応する三次元形状データに基づきＣＡＤシステムで取得された三次元形状データであることが好ましい。
（４）前記（１）、（２）または（３）において、前記置換用咬合面部の置換材料に応じた設計データを、前記ＣＡＭシステムが通信手段を介して取得するようにしてもよい。
（５）前記（１）、（２）、（３）または（４）において、前記置換用咬合面部製造手段が、置換材料のブロックの切削・研削手段であってもよい。
（６）前記（１）、（２）、（３）または（４）において、前記置換用咬合面部製造手段が、置換材料の積層造形手段であってもよい。
積層造形手段としては、光造形法、粉末法、シート積層法、インクジェット法等に適した積層造形手段が例示できる。置換材料に応じて、適宜な積層造形手段を選択すればよい。
（７）前記（５）または（６）において、前記置換材料がジルコニアであることが好ましい。
（８）前記（１）において、前記ＣＡＤシステムが、前記咬合面部の三次元形状データを反転させ、該反転させた三次元形状データに基づき置換用咬合面部の置換材料に応じた成形型の設計データを取得する工程、ＣＡＭシステムが、前記設計データに基づき置換用咬合面部成形型の製造手段に応じた置換用咬合面部成形型のＣＡＭデータを取得する工程、置換用咬合面部成形型製造手段が、前記ＣＡＭデータに基づき制御され置換用咬合面部成形型を製造する工程を含むことが好ましい。 In order to solve the above-mentioned problems, the present invention is (1) made of either a synthetic resin or a composite material of a synthetic resin and a ceramic, and has a double structure of an occlusal surface part and a bottom part from which a functional occlusion is obtained. A replacement occlusal surface portion made of a replacement material selected from a metal, a ceramic, and a composite resin for replacing the occlusal surface portion of an artificial molar whose joint portion is joined at the joint portion with a CAD / CAM system. A CAD system in which a CAD system acquires design data corresponding to a replacement material of a replacement occlusal surface based on the three-dimensional shape data of the occlusal surface, and a CAM system based on the design data The step of acquiring the CAM data of the replacement occlusal surface portion according to the replacement occlusal surface portion manufacturing means, the replacement occlusal surface portion manufacturing means being controlled based on the CAM data and for replacement Characterized in that it comprises a step of producing a slip surface.
Examples of the “metal” that is the replacement material in the present invention include titanium and cobalt chromium alloy, but are not limited thereto.
Examples of the “ceramic” as the replacement material in the present invention include zirconia and alumina, but are not limited thereto.
(2) In the above (1), the three-dimensional shape data of the occlusal surface is removed from the bottom by deleting the joint portion of the artificial molar having a double structure of the occlusal surface and the bottom where the functional occlusion was obtained. It is preferable that the entire shape including the occlusal surface side shape of the occlusal surface portion and the mating surface side shape of the bottom portion is three-dimensional shape data acquired by the CAD system based on the measurement data measured by the measuring means.
(3) In the above (1), the three-dimensional shape data of the occlusal surface portion includes the shape of the joint portion of the artificial molar having a double structure of the occlusal surface portion and the bottom portion where the functional occlusion is obtained. The occlusal surface side shape of the occlusal surface is a three-dimensional shape data based on the measurement data measured by the measuring means, and the mating surface side shape of the occlusal surface portion at the design stage before the functional occlusion is read out from the storage unit It is preferably 3D shape data acquired by a CAD system based on the corresponding 3D shape data.
(4) In the above (1), (2) or (3), the CAM system may acquire design data corresponding to the replacement material of the replacement occlusal surface portion via a communication means.
(5) In the above (1), (2), (3) or (4), the replacement occlusal surface manufacturing means may be a cutting / grinding means for a block of replacement material.
(6) In the above (1), (2), (3) or (4), the replacement occlusal surface manufacturing means may be a layered modeling means of a replacement material.
As the layered modeling means, a layered modeling means suitable for an optical modeling method, a powder method, a sheet lamination method, an ink jet method and the like can be exemplified. What is necessary is just to select an appropriate layered modeling means according to the replacement material.
(7) In the above (5) or (6), the replacement material is preferably zirconia.
(8) In the above (1), the CAD system inverts the three-dimensional shape data of the occlusal surface portion, and designs the mold according to the replacement material of the replacement occlusal surface portion based on the inverted three-dimensional shape data A step of acquiring data, a step of acquiring CAM data of a replacement occlusal surface part mold according to a manufacturing means of a replacement occlusal surface part mold based on the design data, and a replacement occlusal surface part mold manufacturing means Preferably, the method includes a step of manufacturing a replacement occlusal surface molding die controlled based on the CAM data.

この発明は、以上説明したように構成されているので、以下に記載されるような効果を奏する。
すなわち、機能咬合を得るための咬合面部と底部とが接合部で仮接合された人工臼歯を用いて、患者毎に異なる咬合面側形状を有する咬合面部を得た後、得られた咬合面部に基づき、咬合面部と異なり摩耗に対し耐久性のある置換材料からなる置換用咬合面部を、ＣＡＤ／ＣＡＭシステムを利用することで、歯科技工士の高い技能や熟練によらず、迅速にかつ高精度に製造することができる。
より具体的な発明の効果については、後述する実施の形態等から明らかである。 Since the present invention is configured as described above, the following effects can be obtained.
In other words, using an artificial molar whose occlusal surface and bottom to obtain a functional occlusion were temporarily joined at the joint, after obtaining an occlusal surface having a different occlusal surface shape for each patient, the obtained occlusal surface Based on the occlusal surface part, the replacement occlusal surface part made of a replacement material that is durable against wear can be quickly and highly accurate regardless of the high skill and skill of the dental technician by using the CAD / CAM system. Can be manufactured.
More specific effects of the invention will be apparent from embodiments and the like described later.

この発明に用いる置換用咬合面部を製造するためのシステムの一例を示す概略図である。It is the schematic which shows an example of the system for manufacturing the occlusal surface part for replacement used for this invention. 計測手段としてのレーザー光を用いた三次元計測装置を示す斜視図である。It is a perspective view which shows the three-dimensional measuring apparatus using the laser beam as a measurement means. 図１に示すシステムによる置換用咬合面部を製造する方法の一例を示すフローチャートである。It is a flowchart which shows an example of the method of manufacturing the occlusal surface part for replacement by the system shown in FIG. 図１に示すシステムによる置換用咬合面部を製造する方法の他例を示すフローチャートである。It is a flowchart which shows the other example of the method of manufacturing the occlusal surface part for replacement by the system shown in FIG. 図３のフローチャートにおいて、置換材料をジルコニアとし、半焼結のジルコニアブロックをＮＣ切削・研削加工装置によって加工し、置換用咬合面部を製造する方法を示すフローチャートである。FIG. 4 is a flowchart showing a method of manufacturing a replacement occlusal surface part by processing a semi-sintered zirconia block with an NC cutting / grinding apparatus in the flowchart of FIG. 3 using zirconia as a replacement material. 図５のフローチャートにおける置換材料を示し、（ａ）は半焼結ジルコニアブロック、（ｂ）は切削・研削された半焼結置換用咬合面部の斜視図である。5 shows a replacement material in the flowchart of FIG. 5, where (a) is a semi-sintered zirconia block, and (b) is a perspective view of a semi-sintered replacement occlusal surface portion that has been cut and ground. 図３のフローチャートにおいて、置換材料をジルコニアとし、粉末ジルコニアを積層造形装置によって積層造形し、置換用咬合面部を製造する方法を示すフローチャートである。In the flowchart of FIG. 3, the replacement material is zirconia, and powder zirconia is layered using a layered manufacturing apparatus to produce a replacement occlusal surface portion. 図７のフローチャートのステップＳ３４における置換用咬合面部の説明図である。It is explanatory drawing of the occlusal surface part for replacement in step S34 of the flowchart of FIG. 図３のフローチャートにおいて、置換材料をチタンとし、チタンブロックをＮＣ切削・研削加工装置によって加工し、置換用咬合面部を製造する方法を示すフローチャートである。FIG. 4 is a flowchart showing a method of manufacturing a replacement occlusal surface portion by using titanium as a replacement material and processing a titanium block by an NC cutting / grinding apparatus in the flowchart of FIG. 3. 図３のフローチャートにおいて、置換材料をジルコニアとし、粉末ジルコニアを成形する成形型をＮＣ切削・研削加工装置によって加工し、置換用咬合面部を製造する方法を示すフローチャートである。In the flowchart of FIG. 3, it is a flowchart which shows the method of processing the shaping | molding die which shape | molds a substitution material as a zirconia, and shape | molds powder zirconia by NC cutting and grinding apparatus, and manufactures the replacement occlusal surface part. 図１０のフローチャートにおける（ａ）はステップＳ５４、（ｂ）はステップＳ５５、（ｃ）はステップＳ５６に対応する説明図である。In the flowchart of FIG. 10, (a) is an explanatory diagram corresponding to step S54, (b) is a step S55, and (c) is an explanatory diagram corresponding to step S56. この発明に用いる置換用咬合面部を製造するためのシステムの他例を示す概略図である。It is the schematic which shows the other example of the system for manufacturing the occlusal surface part for replacement used for this invention. 従来の機能咬合の印記が得られた後に取り外されることになる咬合面部と底部とからなる下顎第１大臼歯である人工臼歯の一例で、（ａ）は分解斜視図、（ｂ）は斜視図、（ｃ）は頬舌面を示す説明図である。It is an example of the artificial molar which is a mandibular first molar which consists of the occlusal surface part and bottom which will be removed after the conventional functional occlusion seal is obtained, (a) is an exploded perspective view, (b) is a perspective view. (C) is explanatory drawing which shows a cheek tongue surface. 図１３に示す人工臼歯を用いた義歯を示す説明図である。It is explanatory drawing which shows the denture using the artificial molar shown in FIG.

以下、発明を実施するための形態を示し、さらに詳しくこの発明について説明する。もちろんこの発明は以下の実施の形態によって限定されるものではない。
なお、この発明の実施の形態において、置換用咬合面部製造手段によって製造される置換用咬合面部は、適宜の後処理によって置換用咬合面部として使用できるものをも含むものとしている。 DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be shown, and the present invention will be described in more detail. Of course, the present invention is not limited to the following embodiments.
In the embodiment of the present invention, the replacement occlusal surface portion manufactured by the replacement occlusal surface portion manufacturing means includes one that can be used as the replacement occlusal surface portion by appropriate post-processing.

図１に示すように置換用咬合面部を製造するためのシステムは、計測手段１、ＣＡＤシステム２、記憶部３、ＣＡＭシステム４、置換用咬合面部製造手段５を備えている。ＣＡＤシステム２は、計測手段１、記憶部３、ＣＡＭシステム４と接続しており、置換用咬合面部製造手段５は、ＣＡＭシステム４に接続している。
図１に示す置換用咬合面部を製造するためのシステムは、特定の置換材料に適した専用のシステムとしての構成を示しており、置換用咬合面部製造手段５も１種類の置換材料の場合について説明している。例えば、後述するように、置換材料をジルコニアとし、半焼結ジルコニアブロックを切削・研削加工して置換用咬合面部を製造する除去加工に適したものといえる。 As shown in FIG. 1, the system for manufacturing the replacement occlusal surface portion includes a measuring means 1, a CAD system 2, a storage unit 3, a CAM system 4, and a replacement occlusal surface portion manufacturing means 5. The CAD system 2 is connected to the measuring unit 1, the storage unit 3, and the CAM system 4, and the replacement occlusal surface part manufacturing unit 5 is connected to the CAM system 4.
The system for manufacturing the replacement occlusal surface portion shown in FIG. 1 shows a configuration as a dedicated system suitable for a specific replacement material, and the replacement occlusal surface portion manufacturing means 5 is also a single type of replacement material. Explains. For example, as described later, it can be said that the replacement material is zirconia, and the semi-sintered zirconia block is cut and ground to produce a replacement occlusal surface portion.

置換用咬合面部を製造するためのシステムとしては、計測手段１、ＣＡＤシステム２、記憶部３、ＣＡＭシステム４、置換用咬合面部製造手段５が一箇所で一体となったものが例示できるがこれに限られるものではない。
例えば、分散型、すなわち、計測手段１が計測センター（歯科医院、歯科技工所等）に設置され、計測手段１によって計測された機能咬合が得られた咬合面部の計測データがインターネット回線、専用回線等の通信手段を介して、ＣＡＤシステム２、記憶部３、ＣＡＭシステム４、置換用咬合面部製造手段５を備えた設計・加工センターに送信されるようになっていてもよい。この場合、計測データをＵＳＢメモリー等の可搬性メモリーに保存し、これを輸送して、設計・加工センターで計測データを取り込むようにしてもよい。
設計・加工センターが、設計センターと加工センターに分散され、設計センターによって得られた設計データがインターネット回線、専用回線、イーサーネット回線等の通信手段を介して、加工センターに送信されるようになっていてもよい。
これら設計・加工センター、設計センター、加工センター等は、規模の大きな技工所、企業が該当することになる。 Examples of the system for manufacturing the replacement occlusal surface portion include a measurement unit 1, a CAD system 2, a storage unit 3, a CAM system 4, and a replacement occlusal surface portion manufacturing unit 5 integrated in one place. It is not limited to.
For example, the distributed type, that is, the measurement means 1 is installed in a measurement center (dental clinic, dental laboratory, etc.), and the measurement data of the occlusal surface portion where the functional occlusion measured by the measurement means 1 is obtained is an Internet line or a dedicated line. It may be transmitted to a design / processing center provided with the CAD system 2, the storage unit 3, the CAM system 4, and the replacement occlusal surface part manufacturing unit 5 via a communication unit. In this case, the measurement data may be stored in a portable memory such as a USB memory, transported, and the measurement data may be captured at the design / processing center.
The design / processing center is distributed between the design center and the processing center, and the design data obtained by the design center is transmitted to the processing center via communication means such as the Internet line, dedicated line, Ethernet line, etc. It may be.
These design / processing centers, design centers, processing centers, etc. correspond to large-scale technical laboratories and companies.

次に、図１に示す置換用咬合面部を製造するシステムの個々の構成要素について説明する。
計測手段１によって、機能咬合が得られた咬合面部の計測データ（「三次元座標データ」ともいう。）を得ることができる。
機能咬合が得られた咬合面部は、歯科医院にて患者から義歯を取り出し、さらに、接合部を除去し、底部から取り外した状態で計測手段１によって計測すればよい。この場合は、患者は、置換用咬合面部が製造され、置換用咬合面部が底部に接着された義歯を得、得られた義歯を口腔内に装着するまでの間、仮義歯を使用することになる。また、歯科医院にて患者から取り出した義歯から機能咬合が得られた咬合面部を取り外すことなく、接合部の形状を含む咬合面部の咬合面側形状を計測手段１で計測する場合は、得られた計測データと、機能咬合を得るための咬合面部の設計段階で、メーカーによって取得されている底部との合わせ面側形状に対応する三次元形状データ（設計時のデータ）を利用することになる。この場合は、計測が終われば、義歯は患者に返却され、患者は、そのまま義歯を使用できる。その後、置換用咬合面部が製造された段階で、接合部を除去し、機能咬合が得られた咬合面部を取り外し、置換用咬合面部を底部に接着することになる。なお、義歯を口腔内に装着したまま接合部の形状を含む咬合面部の咬合面側形状を計測手段１で計測してもよい。 Next, individual components of the system for manufacturing the replacement occlusal surface shown in FIG. 1 will be described.
The measurement means 1 can obtain measurement data (also referred to as “three-dimensional coordinate data”) of the occlusal surface where the functional occlusion is obtained.
What is necessary is just to measure the occlusal surface part by which the functional occlusion was obtained by the measurement means 1 in the state which took out the denture from the patient in the dental clinic, removed the junction part, and removed from the bottom part. In this case, the patient uses a temporary denture until the replacement occlusal surface is manufactured, the replacement occlusal surface is bonded to the bottom, and the obtained denture is mounted in the oral cavity. Become. Moreover, when measuring the occlusal surface side shape of the occlusal surface part including the shape of a joint part without removing the occlusal surface part from which the functional occlusion was obtained from the denture taken out from the patient in the dental clinic, it is obtained. Measurement data and three-dimensional shape data (design data) corresponding to the shape of the mating surface with the bottom acquired by the manufacturer at the design stage of the occlusal surface to obtain functional occlusion . In this case, when the measurement is completed, the denture is returned to the patient, and the patient can use the denture as it is. Thereafter, when the replacement occlusal surface portion is manufactured, the joint portion is removed, the occlusal surface portion where the functional occlusion is obtained is removed, and the replacement occlusal surface portion is bonded to the bottom. In addition, you may measure the occlusal surface side shape of the occlusal surface part including the shape of a junction part with the measurement means 1 with the dentures mounted in the oral cavity.

計測手段１としては、被測定物の三次元形状を測定することのできるものであればよく、非接触式の計測手段が好ましいが、接触式の計測手段であってもよい。
非接触式の計測手段としては、レーザー光を用いた三次元計測装置が好ましい。 The measuring means 1 may be any means that can measure the three-dimensional shape of the object to be measured, and is preferably a non-contact type measuring means, but may be a contact type measuring means.
As the non-contact type measuring means, a three-dimensional measuring apparatus using laser light is preferable.

図２に示すレーザー光を用いた三次元計測装置１０は、載置台１１の上部に設置された被計測物装着具１２に装着された被計測物１３を、回転テーブル１４により回転テーブル１４の回転軸の軸心であるＺ軸廻りに回転させたり、ＸＹテーブル１５によりＸ軸方向及びＹ軸方向に移動させたりすると共に、更には被計測物の形状の三次元座標を計測する計測部１６の一つのレーザーセンサ１７自体をもＺ軸上の所望の点を中心としてこのＺ軸を含む同一平面上を回転移動させながら、計測部１６の一つのレーザーセンサ１７により被計測物の表面にレーザ光を照射すると共に、この被計測物の表面から反射してくるレーザ光を受光し、計測部１６によりこのレーザ光を受光した際のレーザーセンサ１７の位置、レーザ光の受光角度、レーザ光の受光量や照射から受光までの時間等に基づいて被計測物の表面の各点の三次元座標を計測し、これらの複数の計測点を基に被計測物の形状の三次元座標データ（点群データ）を得ることができるようになっているものである（特開２００６−１２６０３３号公報参照）。
底部から取り外した状態の機能咬合が得られた咬合面部をレーザー光を用いた三次元計測装置１０を用いて計測する場合は、被計測物装着具１２に、例えば、維持突起を歯科用ユーティリティワックス等で仮固定して行えばよい。 The three-dimensional measuring apparatus 10 using the laser beam shown in FIG. 2 rotates the rotating table 14 by using the rotating table 14 to rotate the measuring object 13 mounted on the measuring object mounting tool 12 installed on the mounting table 11. The measuring unit 16 rotates around the Z axis, which is the axis of the axis, moves in the X axis direction and the Y axis direction by the XY table 15, and further measures the three-dimensional coordinates of the shape of the object to be measured. While one laser sensor 17 itself is rotationally moved on the same plane including the Z axis around a desired point on the Z axis, laser light is applied to the surface of the object to be measured by one laser sensor 17 of the measuring unit 16. The laser beam reflected from the surface of the object to be measured is received, the position of the laser sensor 17 when the laser beam is received by the measuring unit 16, the light receiving angle of the laser beam, the laser beam The 3D coordinates of each point on the surface of the object to be measured are measured based on the amount of light received and the time from irradiation to light reception, and the 3D coordinate data (points of the shape of the object to be measured based on these multiple measurement points. Group data) can be obtained (see JP 2006-126033 A).
When measuring the occlusal surface part from which the functional occlusion in the state of being removed from the bottom part is obtained using the three-dimensional measuring device 10 using laser light, for example, a maintenance protrusion is provided on the measurement object wearing tool 12 as a dental utility wax. It may be temporarily fixed with, for example.

また、計測手段としては、被測定物の撮影した画像に基づきコンピュータにより三次元座標データを得るようにした非接触式の測定装置等適宜のものが採用できる。   As the measuring means, an appropriate device such as a non-contact type measuring device that obtains three-dimensional coordinate data by a computer based on an image taken of the object to be measured can be adopted.

計測手段１は、ハードディスク等適宜の記憶部を備え、計測された計測データを保存できるようになっていてもよい。
なお、計測された三次元座標データを記録媒体に記録して、ＣＡＤシステムにおいて記録媒体に記録されたら三次元座標データを読み込むようになっていてもよい。 The measuring unit 1 may include an appropriate storage unit such as a hard disk, and may store the measured measurement data.
The measured three-dimensional coordinate data may be recorded on a recording medium, and the three-dimensional coordinate data may be read when recorded on the recording medium in the CAD system.

ＣＡＤシステム２は、図示していないが、通常、キーボード、マウス等の入力装置、ディスプレイ、プリンター等の出力装置を備えている。
ＣＡＤシステム２は、ＣＡＤソフトにより計測手段１によって計測された機能咬合が得られた咬合面部の計測データ（三次元座標データ）を取り込み、咬合面部の三次元形状データを取得し、記憶部３から置換材料の特性等の各種のデータを取り込み、置換材料に応じた設計データを取得するようになっている。
記憶部３には、機能咬合の印記前の設計段階における咬合面部の底部との合わせ面側形状に対応する三次元形状データも保存されている。記憶部３には、設計段階における接合部の三次元データ、設計段階における咬合面部の咬合面側形状の三次元データ、設計段階における咬合面部全体の三次元データ等が、必要に応じ、保存されていてもよい。 Although not shown, the CAD system 2 usually includes an input device such as a keyboard and a mouse, and an output device such as a display and a printer.
The CAD system 2 takes in the measurement data (three-dimensional coordinate data) of the occlusal surface part where the functional occlusion measured by the measuring means 1 by CAD software is obtained, acquires the three-dimensional shape data of the occlusal surface part, and stores it from the storage unit 3. Various data such as the characteristics of the replacement material are taken in, and design data corresponding to the replacement material is acquired.
The storage unit 3 also stores three-dimensional shape data corresponding to the mating surface side shape with the bottom of the occlusal surface portion at the design stage before the functional occlusion is marked. The storage unit 3 stores, as necessary, three-dimensional data of the joint at the design stage, three-dimensional data of the occlusal surface side shape of the occlusal surface at the design stage, three-dimensional data of the entire occlusal surface at the design stage, and the like. It may be.

臼歯は、患者によって臼歯のサイズが異なること、および、臼歯の種類は、第１小臼歯、第２小臼歯、第１大臼歯、第２大臼歯、第３大臼歯が、上顎左右、下顎左右合計２０種あることから、臼歯サイズを、例えば、Ｓ、Ｍ、Ｌの３種とした場合、機能咬合の印記前の設計段階での咬合面部の底部との合わせ面側形状に対応する三次元形状データとしては、２０×３＝６０種分が記憶部３に保存されている。また、第３大臼歯については、咬合面の設計をしないこともあり、この場合は、１６×３＝４８種分が記憶部３に保存されていることになる。左右の臼歯を対称形状とした場合は、半分の数を記憶部３に保存することでよい。なお、臼歯サイズを、Ｓ、Ｍ、Ｌの３種だけでなく、男女、年齢、色調等に応じた分類をも含めると、更に多種類のデータを記憶部に保存することが必要となることはいうまでもない。   The molars of the molars differ from patient to patient, and the types of molars are the first premolar, second premolar, first premolar, second premolar, third premolar, maxillary left and right, mandibular left and right Since there are 20 types in total, for example, when the molar size is 3 types of S, M, and L, the three-dimensional corresponding to the mating surface side shape with the bottom of the occlusal surface portion at the design stage before the functional occlusion is marked As the shape data, 20 × 3 = 60 types are stored in the storage unit 3. In addition, the occlusal surface may not be designed for the third molar, and in this case, 16 × 3 = 48 types are stored in the storage unit 3. If the left and right molars have a symmetrical shape, half the number may be stored in the storage unit 3. If the molar size includes not only the three types of S, M, and L, but also the classification according to gender, age, color tone, etc., it is necessary to store more types of data in the storage unit. Needless to say.

計測データが、接合部が削除されて底部から取り外された咬合面部の全体形状を計測手段１により計測された咬合面側形状と咬合面部と底部との合わせ面側形状を含むデータである場合、咬合面部の三次元形状データは、計測データに基づきＣＡＤシステム２で取得されることになる。なお、この発明において、「咬合面側形状」とは、咬合面だけの形状に限られず、咬合面とその周囲の形状を含む形状の意味でも用いられている。   When the measurement data is data including the occlusal surface side shape measured by the measuring means 1 and the mating surface side shape of the occlusal surface portion and the bottom portion, the entire shape of the occlusal surface portion removed from the bottom portion after the joint portion is deleted, The three-dimensional shape data of the occlusal surface is acquired by the CAD system 2 based on the measurement data. In the present invention, the “occlusal surface side shape” is not limited to the shape of only the occlusal surface, but is also used to mean the shape including the occlusal surface and the surrounding shape.

また、計測データが、機能咬合が得られた咬合面部と底部との二重構造を有する人工臼歯の接合部の形状を含む咬合面部の咬合面側形状を計測したデータである場合、咬合面部の三次元形状データは、計測データに基づく三次元形状データと、記憶部３から読み出された機能咬合の印記前の設計段階における咬合面部の底部との合わせ面側形状に対応する三次元形状データに基づきＣＡＤシステムで取得されることになる。   In addition, when the measurement data is data obtained by measuring the occlusal surface side shape of the occlusal surface portion including the shape of the joint portion of the artificial molar having a double structure of the occlusal surface portion and the bottom portion where the functional occlusion was obtained, The three-dimensional shape data is the three-dimensional shape data corresponding to the mating surface side shape of the three-dimensional shape data based on the measurement data and the bottom of the occlusal surface portion at the design stage before the functional occlusion marking read from the storage unit 3 Is acquired by the CAD system based on the above.

なお、計測手段１が、接合部が削除されて底部から取り外された咬合面部の全体形状を計測するものに限られる場合は、記憶部３に機能咬合の印記前の設計段階における前記咬合面部の底部との合わせ面側形状に対応する三次元形状データが保存される必要はない。   In addition, when the measuring means 1 is limited to what measures the whole shape of the occlusal surface part removed from the bottom part by deleting the joint part, the occlusal surface part in the design stage before the functional occlusion is recorded in the storage unit 3. It is not necessary to store the three-dimensional shape data corresponding to the mating surface side shape with the bottom.

また、記憶部３には、ＣＡＤシステム２で、咬合面部の三次元形状データに基づき置換材料に応じた置換用咬合面部の設計データが取得することができるように、置換材料の特性等の各種の置換用咬合面部の設計に使用されるデータが保存されている。   Further, the storage unit 3 can acquire various design characteristics of the replacement material so that the CAD system 2 can obtain design data of the replacement occlusal surface corresponding to the replacement material based on the three-dimensional shape data of the occlusal surface. Data used for the design of the replacement occlusal surface is stored.

なお、記憶部３としては、機能咬合の印記前の設計段階における咬合面部等のデータが保存されている人工歯メーカーのサーバー内の記憶部であってもよい。この場合は、サーバー内の記憶部からインターネット回線、専用回線、イーサーネット回線等の通信手段を介してデータが読み出される。
例えば、後述するように、置換材料をジルコニアとし、半焼結ジルコニアブロックを切削・研削加工して置換用咬合面部を作製する場合、咬合面部の三次元形状データと、記憶部３から取り込まれた半焼結ジルコニアの完全焼結による収縮率に基づき、収縮率を見込んだ置換用咬合面部の設計データが取得されることになる。なお、半焼結ジルコニアブロックをＮＣ切削・研削加工装置に保持するためのレストに関するデータが置換用咬合面部の設計データに付加される計算がなされる。 In addition, as the memory | storage part 3, the memory | storage part in the server of the artificial tooth maker where the data of the occlusal surface part etc. in the design stage before functional occlusion marking are preserve | saved may be sufficient. In this case, data is read from the storage unit in the server via communication means such as the Internet line, dedicated line, Ethernet line or the like.
For example, as will be described later, when a replacement material is zirconia and a semi-sintered zirconia block is cut and ground to produce a replacement occlusal surface portion, the three-dimensional shape data of the occlusal surface portion and the half-fired captured from the storage unit 3 are used. Based on the shrinkage rate due to the complete sintering of the sintered zirconia, the design data of the replacement occlusal surface portion taking into account the shrinkage rate is acquired. In addition, the calculation regarding the data regarding the rest for holding | maintaining a semi-sintered zirconia block in NC cutting and grinding processing apparatus is added to the design data of the replacement occlusal surface part is made.

置換用咬合面部を底部に歯科用接着材で接着する際に、接着材層の厚さ調節等が必要な場合は、接着材層の分をオフセットをかけた設計データを取得する計算がなされる。
置換用咬合面部の設計においては、通常、咬合面部等がディスプレイに三次元グラフィック表示（例えば、ソリッドモデルとして表示）され、三次元形状を確認することができるようになっている。
なお、ＣＡＤシステムで得られた置換用咬合面部の設計データは、記憶部に保存してもよい。 When the thickness of the adhesive layer needs to be adjusted when the replacement occlusal surface is bonded to the bottom with a dental adhesive, calculation is performed to obtain design data with the adhesive layer offset. .
In the design of the replacement occlusal surface portion, the occlusal surface portion or the like is usually displayed on a display in a three-dimensional graphic (for example, displayed as a solid model) so that the three-dimensional shape can be confirmed.
In addition, you may preserve | save the design data of the occlusal surface part for replacement | exchange obtained by the CAD system in a memory | storage part.

ＣＡＤシステムとＣＡＭシステムが分散して別々のコンピューターを使用している場合は、通常、ＣＡＭシステム４もキーボード、マウス等の入力装置、ディスプレイ、プリンター等の出力装置を備えることになるが、分散していない場合は、ＣＡＤシステムと共用することになる。
ＣＡＭシステム４は、ＣＡＭソフトにより置換用咬合面部の設計データを取り込み、置換用咬合面部製造手段５を制御するＣＡＭデータを取得するようになっている。
例えば、置換用咬合面部製造手段５がＮＣ切削・研削加工装置であって、被加工対象物が半焼結ジルコニアブロックの場合は、ＣＡＭデータとして、ＮＣ切削・研削加工装置の加工制御データが取得される。
なお、ＣＡＭシステムは、ＣＡＭデータを保存するためのハードディスク等の記憶部を備え、得られた置換用咬合面部のＣＡＭデータを保存するようになっていてもよい。 When the CAD system and the CAM system are distributed and different computers are used, the CAM system 4 usually includes an input device such as a keyboard and a mouse, and an output device such as a display and a printer. If not, it will be shared with the CAD system.
The CAM system 4 acquires design data of the replacement occlusal surface by CAM software, and acquires CAM data for controlling the replacement occlusal surface manufacturing means 5.
For example, when the replacement occlusal surface manufacturing means 5 is an NC cutting / grinding apparatus and the workpiece is a semi-sintered zirconia block, machining control data of the NC cutting / grinding apparatus is acquired as CAM data. The
Note that the CAM system may include a storage unit such as a hard disk for storing CAM data, and store the obtained CAM data of the replacement occlusal surface.

置換用咬合面部製造手段５は、置換用咬合面部のＣＡＭデータを取り込み、ＣＡＭデータに基づき、置換用咬合面部を製造する。
例えば、置換用咬合面部製造手段５がＮＣ切削・研削加工装置であって、被加工対象物が半焼結ジルコニアブロックの場合は、ＮＣ切削・研削加工装置に装着された半焼結ジルコニアブロックが加工制御データに基づき切削・研削される。 The replacement occlusal surface portion manufacturing means 5 takes in the CAM data of the replacement occlusal surface portion, and manufactures the replacement occlusal surface portion based on the CAM data.
For example, when the replacement occlusal surface manufacturing means 5 is an NC cutting / grinding device and the workpiece is a semi-sintered zirconia block, the semi-sintered zirconia block mounted on the NC cutting / grinding device is processed and controlled. Cutting and grinding are performed based on the data.

次に、図１に示す置換用咬合面部を製造するためのシステムを使用して置換用咬合面部を製造する方法を説明する。
図３は、接合部が削除され、底部から取り外された機能咬合が得られた咬合面部の全体形状が、計測手段１により計測され、計測された計測データを用いて置換用咬合面部を製造する方法を示すフローチャートである。 Next, a method for manufacturing the replacement occlusal surface portion using the system for manufacturing the replacement occlusal surface portion shown in FIG. 1 will be described.
In FIG. 3, the entire shape of the occlusal surface portion from which the joint portion is removed and the functional occlusion removed from the bottom portion is measured by the measuring means 1, and the replacement occlusal surface portion is manufactured using the measured measurement data. 3 is a flowchart illustrating a method.

咬合面部と底部との二重構造の人工臼歯が義歯床に埋設された義歯（図１４参照）が１週間から１ヶ月使用され、咬合面側が摩耗し、患者にとって最適な機能咬合の印記が得られたと判断したら、接合部を研摩用のレジンポイントで削除し、咬合面部を人工臼歯の底部から取り外す。そして、分離用フィルムは取り除く。分離用離型剤の場合は適宜の工具で剥離させて、除去する。   A denture (see Fig. 14) with an occlusal surface and bottom double-sided artificial molar embedded in the denture base is used for 1 week to 1 month, and the occlusal surface wears out, and the optimal functional occlusion is obtained for the patient. When it is determined that the joint portion has been removed, the joint portion is deleted at the resin point for polishing, and the occlusal surface portion is removed from the bottom of the artificial molar. Then, the separation film is removed. In the case of a release agent for separation, it is removed by peeling with an appropriate tool.

計測手段１において、接合部が削除され、底部から取り外された機能咬合が得られた咬合面部の全体を計測し、咬合面側形状と咬合面部と底部との合わせ面側形状を含む咬合面部の全体形状の計測データを取得する（ステップＳ１）。
ＣＡＤシステム２では、ステップＳ１で取得された計測データを取り込み、咬合面部の三次元形状データを取得し、三次元形状データに基づき、置換用咬合面部の材料、置換用咬合面部製造手段に応じた設計データを取得する（ステップＳ２）。
ＣＡＭシステム４では、ステップＳ２で取得された設計データを取り込み、置換用咬合面部製造手段を制御するＣＡＭデータを取得する（ステップＳ３）。
置換用咬合面部製造手段５では、ステップＳ３で取得されたＣＡＭデータを取り込み、ＣＡＭデータに基づき置換用咬合面部製造手段が制御され、置換用咬合面部が製造される（ステップＳ４）。 In the measuring means 1, the entire occlusal surface portion from which the joint portion is deleted and the functional occlusion removed from the bottom portion is measured, and the occlusal surface portion including the occlusal surface side shape and the mating surface side shape of the occlusal surface portion and the bottom portion is measured. Measurement data of the entire shape is acquired (step S1).
In the CAD system 2, the measurement data acquired in step S1 is acquired, the three-dimensional shape data of the occlusal surface portion is acquired, and the material of the replacement occlusal surface portion and the replacement occlusal surface portion manufacturing means are obtained based on the three-dimensional shape data. Design data is acquired (step S2).
In the CAM system 4, the design data acquired in step S2 is taken in, and CAM data for controlling the replacement occlusal surface manufacturing means is acquired (step S3).
The replacement occlusal surface portion manufacturing means 5 takes in the CAM data acquired in step S3, and the replacement occlusal surface portion manufacturing means is controlled based on the CAM data to manufacture the replacement occlusal surface portion (step S4).

図４は、義歯から機能咬合が得られた咬合面部を取り外すことなく、接合部の形状を含む咬合面部の咬合面側形状を計測手段１により計測され、得られた計測データと、機能咬合を得るための咬合面部の設計段階で、メーカーによって取得されている底部との合わせ面側形状に対応する三次元形状データ（設計時のデータ）を利用して置換用咬合面部を製造する方法を示すフローチャートである。   FIG. 4 shows that the occlusal surface side shape of the occlusal surface portion including the shape of the joint portion is measured by the measuring means 1 without removing the occlusal surface portion from which the functional occlusion is obtained from the denture, and the obtained measurement data and the functional occlusion are obtained. A method of manufacturing a replacement occlusal surface using three-dimensional shape data (design data) corresponding to the shape of the mating surface with the bottom acquired by the manufacturer at the design stage of the occlusal surface to obtain It is a flowchart.

咬合面部と底部との二重構造の人工臼歯が義歯床に埋設された義歯（図１４参照）が１週間から１ヶ月使用され、咬合面側が摩耗し、患者にとって最適な機能咬合の印記が得られたと判断したら、咬合面部を底部から取り外すことなく、計測手段１により計測して、接合部の形状を含む咬合面部の咬合面側形状の計測データを取得する（ステップＳ１１）。   A denture (see Fig. 14) with an occlusal surface and bottom double-sided artificial molar embedded in the denture base is used for 1 week to 1 month, and the occlusal surface wears out, and the optimal functional occlusion is obtained for the patient. If it judges that it was done, it will measure by the measurement means 1 without removing an occlusal surface part from a bottom part, and the measurement data of the occlusal surface side shape of the occlusal surface part including the shape of a junction part will be acquired (step S11).

ＣＡＤシステム２では、ステップＳ１１で取得された計測データを取り込み、ＣＡＤソフトにより、咬合面側形状から接合部の形状を除去する処理がなされ、接合部の形状が除去された咬合面側形状の三次元形状データを取得する。そのためには、例えば、記憶部３に保存された設計段階における接合部の三次元データを使用すればよい。一方、記憶部３に保存されている機能咬合が得られた咬合面部に対応する機能咬合の印記前の設計段階における咬合面部の底部との合わせ面側形状に対応する三次元形状データを読み出す。そして、取得された前記咬合面側形状の三次元形状データと、記憶部３から読み出された底部との合わせ面側形状に対応する三次元形状データとに基づき、例えば、データの重ね合わせ処理により、咬合面部の全体形状の三次元形状データを取得する。そして、取得された咬合面部の全体形状の三次元形状データに基づき、置換用咬合面部の材料、置換用咬合面部製造手段に応じた設計データを取得する（ステップＳ１２）。もちろん、ステップＳ１１で得られた接合部の形状を含む咬合面部の咬合面側形状の計測データと、記憶部３に保存されている設計段階においてメーカーによって取得されている咬合面部全体の三次元データ、接合部の三次元データとを、例えば、重ね合わせ処理等を行うことで、機能咬合の得られた咬合面部の三次元データを取得してもよいことはいうまでもない。   In the CAD system 2, the measurement data acquired in step S <b> 11 is captured, and the processing of removing the shape of the joint portion from the occlusal surface side shape is performed by CAD software. The tertiary of the occlusal surface side shape from which the shape of the joint portion is removed. Get original shape data. For this purpose, for example, the three-dimensional data of the joint at the design stage stored in the storage unit 3 may be used. On the other hand, three-dimensional shape data corresponding to the mating surface side shape with the bottom of the occlusal surface portion at the design stage before the functional occlusion marking corresponding to the occlusal surface portion where the functional occlusion stored in the storage unit 3 is obtained is read out. Then, based on the acquired three-dimensional shape data of the occlusal surface side shape and the three-dimensional shape data corresponding to the mating surface side shape of the bottom portion read from the storage unit 3, for example, a data overlay process Thus, the three-dimensional shape data of the entire shape of the occlusal surface portion is acquired. Then, based on the acquired three-dimensional shape data of the overall shape of the occlusal surface portion, the design data corresponding to the material of the replacement occlusal surface portion and the replacement occlusal surface portion manufacturing means is acquired (step S12). Of course, the measurement data of the occlusal surface side shape of the occlusal surface portion including the shape of the joint portion obtained in step S11 and the three-dimensional data of the entire occlusal surface portion acquired by the manufacturer at the design stage stored in the storage unit 3 Needless to say, the three-dimensional data of the occlusal surface portion obtained by the functional occlusion may be acquired by performing, for example, a superimposing process on the three-dimensional data of the joint portion.

ＣＡＭシステム４では、ステップＳ１２で取得された設計データを取り込み、置換用咬合面部製造手段を制御するＣＡＭデータを取得する（ステップＳ１３）。
置換用咬合面部製造手段５では、ステップＳ１３で取得されたＣＡＭデータを取り込み、ＣＡＭデータに基づき置換用咬合面部製造手段が制御され、置換用咬合面部が製造される（ステップＳ１４）。 In the CAM system 4, the design data acquired in step S12 is taken in, and CAM data for controlling the replacement occlusal surface manufacturing means is acquired (step S13).
The replacement occlusal surface portion manufacturing means 5 takes in the CAM data acquired in step S13, the replacement occlusal surface portion manufacturing means is controlled based on the CAM data, and the replacement occlusal surface portion is manufactured (step S14).

より具体的に説明する。
図５は、図３において、置換材料をジルコニアとし、半焼結のジルコニアブロックをＮＣ切削・研削加工装置によって加工し、置換用咬合面部を製造する方法を示すフローチャートである。
計測手段１において、接合部が削除され、底部から取り外された機能咬合が得られた咬合面部の全体を計測し、咬合面側形状と咬合面部と底部との合わせ面側形状を含む咬合面部の全体形状の計測データを取得する（ステップＳ２１）。 This will be described more specifically.
FIG. 5 is a flowchart showing a method of manufacturing a replacement occlusal surface part by processing a semi-sintered zirconia block with an NC cutting / grinding apparatus in FIG. 3 using zirconia as a replacement material.
In the measuring means 1, the entire occlusal surface portion from which the joint portion is deleted and the functional occlusion removed from the bottom portion is measured, and the occlusal surface portion including the occlusal surface side shape and the mating surface side shape of the occlusal surface portion and the bottom portion is measured. Measurement data for the entire shape is acquired (step S21).

ＣＡＤシステム２では、ステップＳ２１で取得された計測データを取り込み、咬合面部の三次元形状データを取得し、三次元形状データに基づき、置換用咬合面部の材料をジルコニアとし、半焼結ジルコニアブロックの完全焼結における収縮率を見込んだＮＣ切削・研削加工用の設計データを取得する（ステップＳ２２）。この場合、通常、半焼結ジルコニアブロックをＮＣ切削・研削加工装置に保持するためのレストに関するデータが置換用咬合面部の設計データに付加される計算がなされる。必要に応じ、接着材層の分のオフセットをかけた設計データを取得する計算がなされる。   In the CAD system 2, the measurement data acquired in step S21 is acquired, the three-dimensional shape data of the occlusal surface portion is acquired, and based on the three-dimensional shape data, the material of the replacement occlusal surface portion is zirconia, and the semi-sintered zirconia block is completed. The design data for NC cutting / grinding processing in consideration of the shrinkage rate in the sintering is acquired (step S22). In this case, a calculation is usually performed in which data relating to a rest for holding the semi-sintered zirconia block in the NC cutting / grinding device is added to the design data of the replacement occlusal surface portion. Calculation is performed to obtain design data with an offset corresponding to the adhesive layer as necessary.

ＣＡＭシステム４では、ステップＳ２２で取得された設計データを取り込み、ＮＣ切削・研削加工装置を制御するＣＡＭデータ（加工制御データ）を取得する（ステップＳ２３）。   The CAM system 4 takes in the design data acquired in step S22, and acquires CAM data (processing control data) for controlling the NC cutting / grinding apparatus (step S23).

ＮＣ切削・研削加工装置では、ステップＳ２３で取得されたＣＡＭデータを取り込み、ＣＡＭデータに基づきＮＣ切削・研削加工装置が制御され、図６（ａ）に示すレスト２１付きの半焼結ジルコニアブロック２２が切削・研削されて図６（ｂ）に示すレスト２１付きの半焼結置換用咬合面部２３が製造される（ステップＳ２４）。なお、レスト２１は、この後、除去される。   In the NC cutting / grinding apparatus, the CAM data acquired in step S23 is taken in, the NC cutting / grinding apparatus is controlled based on the CAM data, and the semi-sintered zirconia block 22 with the rest 21 shown in FIG. The semi-sintered replacement occlusal surface part 23 with the rest 21 shown in FIG. 6B is manufactured by cutting and grinding (step S24). The rest 21 is removed thereafter.

切削・研削加工された半焼結置換用咬合面部を、通法に従い完全焼結し置換用咬合面部を得る（ステップＳ２５）。
置換用咬合面部の形状修正、研磨等の後加工を通法に従い行う（ステップＳ２６）。
置換用咬合面部を底部に歯科用接着材を用いて接着する（ステップＳ２７）。 The semi-sintered replacement occlusal surface portion that has been cut and ground is completely sintered according to a conventional method to obtain a replacement occlusal surface portion (step S25).
Post-processing such as shape correction and polishing of the replacement occlusal surface portion is performed according to a conventional method (step S26).
The replacement occlusal surface is bonded to the bottom using a dental adhesive (step S27).

半焼結ジルコニアブロックをＮＣ切削・研削加工装置によって加工し、置換用咬合面部を製造する方法について説明したが、複数の置換用咬合面部の設計データを用い、半焼結ジルコニアディスクに複数の置換用咬合面部を製造するようにしてもよい。
完全焼結ブロックは難加工性なため、高価な高硬度の切削・研削具や超音波加工具等を必要とし、また、長時間の加工が必要となるが、半焼結ジルコニアブロックは、切削・研削加工性が良好なことから、切削・研削具も安価ですみ、高精度な加工が短時間で行える利点がある。 We explained how to make semi-sintered zirconia block by NC cutting / grinding machine and manufacture replacement occlusal surface part. However, using design data of multiple replacement occlusal surface parts, semi-sintered zirconia disk has multiple replacement occlusions You may make it manufacture a surface part.
Completely sintered blocks are difficult to process and require expensive high-hardness cutting / grinding tools, ultrasonic processing tools, etc., and long-time processing is required, but semi-sintered zirconia blocks require cutting and grinding. Since grinding performance is good, cutting and grinding tools are inexpensive, and there is an advantage that high-precision machining can be performed in a short time.

図７は、図３において、置換材料をジルコニアとし、粉末ジルコニアを、積層造形装置によって積層造形し、置換用咬合面部を製造する方法を示すフローチャートである。
計測手段１において、接合部が削除され、底部から取り外された機能咬合が得られた咬合面部の全体を計測し、咬合面側形状と咬合面部と底部との合わせ面側形状を含む計測データを取得する（ステップＳ３１）。 FIG. 7 is a flowchart showing a method for manufacturing a replacement occlusal surface portion by making a replacement material in FIG. 3 using zirconia and powder zirconia by a layered manufacturing apparatus.
In the measuring means 1, the entire occlusal surface portion from which the joint portion is deleted and the functional occlusion removed from the bottom portion is measured, and measurement data including the occlusal surface side shape and the mating surface side shape of the occlusal surface portion and the bottom portion is obtained. Obtain (step S31).

ＣＡＤシステム２では、ステップＳ３１で取得された計測データを取り込み、咬合面部の三次元形状データを取得し、三次元形状データに基づき、置換用咬合面部の材料をジルコニアとし、粉末ジルコニアを積層造形と焼結における変化率（収縮率等）を見込んだ積層断面集合体の設計データを取得する（ステップＳ３２）。必要に応じ、接着材層の分のオフセットをかけた設計データを取得する計算がなされる。   In the CAD system 2, the measurement data acquired in step S31 is acquired, the three-dimensional shape data of the occlusal surface portion is acquired, the material of the replacement occlusal surface portion is zirconia based on the three-dimensional shape data, and the powder zirconia is additive manufacturing. The design data of the laminated cross-section aggregate taking into account the rate of change (shrinkage rate, etc.) in sintering is acquired (step S32). Calculation is performed to obtain design data with an offset corresponding to the adhesive layer as necessary.

ＣＡＭシステム４では、ステップＳ３２で取得された設計データを取り込み、積層造形装置を制御するＣＡＭデータを取得する（ステップＳ３３）。   In the CAM system 4, the design data acquired in step S32 is taken in, and CAM data for controlling the additive manufacturing apparatus is acquired (step S33).

積層造形装置では、ステップＳ３３で取得されたＣＡＭデータを取り込み、ＣＡＭデータに基づき積層造形装置が制御され、図８に示す置換用咬合面部が製造される（ステップＳ３４）。
置換用咬合面部を、通法に従い完全焼結し置換用咬合面部を得る（ステップＳ３５）。
置換用咬合面部の形状修正、研磨等の後加工を通法に従い行う（ステップＳ３６）。
置換用咬合面部を底部と歯科用接着材を用いて接着する（ステップＳ３７）。 In the additive manufacturing apparatus, the CAM data acquired in step S33 is taken in, the additive manufacturing apparatus is controlled based on the CAM data, and the replacement occlusal surface portion shown in FIG. 8 is manufactured (step S34).
The replacement occlusal surface portion is completely sintered according to a conventional method to obtain the replacement occlusal surface portion (step S35).
Post-processing such as correction of the shape of the occlusal surface portion for replacement and polishing is performed according to a conventional method (step S36).
The replacement occlusal surface is bonded to the bottom using a dental adhesive (step S37).

図９は、図３において、置換材料をチタンとし、チタンブロックを、ＮＣ切削・研削加工装置によって加工し、置換用咬合面部を製造する方法を示すフローチャートである。
計測手段１において、接合部が削除され、底部から取り外された機能咬合が得られた咬合面部の全体を計測し、咬合面側形状と咬合面部と底部との合わせ面側形状を含む咬合面部の全体形状の計測データを取得する（ステップＳ４１）。 FIG. 9 is a flowchart showing a method of manufacturing the replacement occlusal surface portion by using titanium as the replacement material and processing the titanium block with an NC cutting / grinding apparatus in FIG.
In the measuring means 1, the entire occlusal surface portion from which the joint portion is deleted and the functional occlusion removed from the bottom portion is measured, and the occlusal surface portion including the occlusal surface side shape and the mating surface side shape of the occlusal surface portion and the bottom portion is measured. Measurement data of the entire shape is acquired (step S41).

ＣＡＤシステム２では、ステップＳ４１で取得された計測データを取り込み、咬合面部の三次元形状データを取得し、三次元形状データに基づき、置換用咬合面部の材料をチタンとし、チタンブロックのＮＣ切削・研削加工用の設計データを取得する（ステップＳ４２）。この場合、通常、チタンブロックをＮＣ切削・研削加工装置に保持するためのレストに関するデータが置換用咬合面部の設計データに付加される計算がなされる。必要に応じ、接着材層の分のオフセットをかけた設計データを取得する計算がなされる。   In the CAD system 2, the measurement data acquired in step S41 is acquired, the three-dimensional shape data of the occlusal surface portion is acquired, and the material of the replacement occlusal surface portion is titanium based on the three-dimensional shape data. Design data for grinding is acquired (step S42). In this case, usually, calculation is performed in which data relating to the rest for holding the titanium block in the NC cutting / grinding apparatus is added to the design data of the replacement occlusal surface portion. Calculation is performed to obtain design data with an offset corresponding to the adhesive layer as necessary.

ＣＡＭシステム４では、ステップＳ４２で取得された設計データを取り込み、ＮＣ切削・研削加工装置を制御するＣＡＭデータ（加工制御データ）を取得する（ステップＳ４３）。   The CAM system 4 takes in the design data acquired in step S42, and acquires CAM data (machining control data) for controlling the NC cutting / grinding apparatus (step S43).

ＮＣ切削・研削加工装置では、ステップＳ４３で取得されたＣＡＭデータを取り込み、ＣＡＭデータに基づきＮＣ切削・研削加工装置が制御され、チタンブロックが切削・研削されて置換用咬合面部が製造される（ステップＳ４４）。なお、レストは、この後、除去される。
置換用咬合面部の形状修正、研磨等の後加工を通法に従い行う（ステップＳ４５）。
置換用咬合面部を底部と歯科用接着材を用いて接着する（ステップＳ４６）。 In the NC cutting / grinding device, the CAM data acquired in step S43 is taken in, the NC cutting / grinding device is controlled based on the CAM data, and the titanium block is cut and ground to produce the replacement occlusal surface portion ( Step S44). The rest is removed thereafter.
Post-processing such as shape correction and polishing of the replacement occlusal surface portion is performed according to a conventional method (step S45).
The replacement occlusal surface is bonded to the bottom using a dental adhesive (step S46).

図１０は、図３において、置換材料をジルコニアとし、粉末ジルコニアを充填して、成形するための置換用咬合面部の成形型を製造する手段、例えば、ＮＣ切削・研削加工装置によって加工し、置換用咬合面部を製造する方法を示すフローチャートである。
計測手段１において、接合部が削除され、底部から取り外された機能咬合が得られた咬合面部の全体を計測し、咬合面側形状と咬合面部と底部との合わせ面側形状を含む咬合面部の全体形状の計測データを取得する（ステップＳ５１）。 FIG. 10 shows a replacement material in FIG. 3 which is made of a zirconia replacement material, filled with powdered zirconia, and manufactured by a means for manufacturing a replacement occlusal surface mold for forming, for example, an NC cutting / grinding apparatus. It is a flowchart which shows the method of manufacturing the occlusal surface part for medical use.
In the measuring means 1, the entire occlusal surface portion from which the joint portion is deleted and the functional occlusion removed from the bottom portion is measured, and the occlusal surface portion including the occlusal surface side shape and the mating surface side shape of the occlusal surface portion and the bottom portion is measured. Measurement data of the entire shape is acquired (step S51).

ＣＡＤシステム２では、ステップＳ５１で取得された計測データを取り込み、咬合面部の三次元形状データを取得し、三次元形状データに基づき、置換用咬合面部の材料をジルコニアとし、粉末ジルコニアを充填して、成形するために、ジルコニアの完全焼結における収縮率を見込んだ成形型（陰型）の設計データを取得する（ステップＳ５２）。成形型（陰型）の三次元形状データは、咬合面部の三次元形状データを反転させることで得られる。なお、必要に応じ、接着材層の分のオフセットをかけた設計データを取得する計算がなされる。   In the CAD system 2, the measurement data acquired in step S51 is acquired, the three-dimensional shape data of the occlusal surface portion is acquired, the material of the replacement occlusal surface portion is zirconia based on the three-dimensional shape data, and the powder zirconia is filled. In order to mold, design data of a mold (negative mold) that anticipates the shrinkage rate in complete sintering of zirconia is acquired (step S52). The three-dimensional shape data of the mold (negative) is obtained by inverting the three-dimensional shape data of the occlusal surface. If necessary, calculation for obtaining design data with an offset corresponding to the adhesive layer is performed.

ＣＡＭシステム４では、ステップＳ５２で取得された設計データを取り込み、ＮＣ切削・研削加工装置を制御するＣＡＭデータ（加工制御データ）を取得する（ステップＳ５３）。   The CAM system 4 takes in the design data acquired in step S52 and acquires CAM data (machining control data) for controlling the NC cutting / grinding apparatus (step S53).

ＮＣ切削・研削加工装置では、ステップＳ５３で取得されたＣＡＭデータを取り込み、ＣＡＭデータに基づきＮＣ切削・研削加工装置が制御され、図１１（ａ）に示す置換用咬合面部成形型３１、３１が製造される（ステップＳ５４）。成形型には、合成樹脂を用いると安価となる。
なお、置換用咬合面部成形型を積層造形装置で製造してもよい。 In the NC cutting / grinding apparatus, the CAM data acquired in step S53 is taken in, the NC cutting / grinding apparatus is controlled based on the CAM data, and the replacement occlusal surface forming dies 31, 31 shown in FIG. Manufactured (step S54). If a synthetic resin is used for the mold, the cost becomes low.
In addition, you may manufacture the occlusal surface part shaping | molding die for substitution with an additive manufacturing apparatus.

得られた成形型３１、３１に粉末ジルコニアを図１１（ｂ）に示すように充填し置換用咬合面部３２を成形する（ステップＳ５５）。
図１１（ｃ）に示すように成形型３１、３１から置換用咬合面部３２を取り出す（ステップＳ５６）。
置換用咬合面部を完全焼結させて、置換用咬合面部を得る（ステップＳ５７）。
置換用咬合面部の形状修正、研磨等の後加工を通法に従い行う（ステップＳ５８）。
置換用咬合面部を底部と歯科用接着材を用いて接着する（ステップＳ５９）。 The obtained molds 31, 31 are filled with powdered zirconia as shown in FIG. 11B to form the replacement occlusal surface 32 (step S55).
As shown in FIG. 11C, the replacement occlusal surface portion 32 is taken out from the molds 31, 31 (step S56).
The replacement occlusal surface portion is completely sintered to obtain a replacement occlusal surface portion (step S57).
Post-processing such as shape correction and polishing of the replacement occlusal surface portion is performed according to a conventional method (step S58).
The replacement occlusal surface is bonded to the bottom using a dental adhesive (step S59).

置換材料がコンポジットレジンの場合は、未硬化なコンポジットレジンを重合硬化させることから、例えば、前記した、図７、図１０の方法に準じて行うことができることから、詳細な説明は省略するが、これに限られるものではない。   In the case where the replacement material is a composite resin, since the uncured composite resin is polymerized and cured, for example, since it can be performed according to the method of FIGS. 7 and 10 described above, detailed description is omitted. It is not limited to this.

置換用咬合面部を製造するためのシステムは、図１に示す特定の置換材料に適した専用のシステムに限られず、複数の置換材料に適した汎用のシステムであってもよい。
図１２は、複数の置換用咬合面部製造手段を有する置換用咬合面部を製造するためのシステムを示している。 The system for manufacturing the replacement occlusal surface portion is not limited to a dedicated system suitable for the specific replacement material shown in FIG. 1, and may be a general-purpose system suitable for a plurality of replacement materials.
FIG. 12 shows a system for manufacturing a replacement occlusal surface portion having a plurality of replacement occlusal surface portion manufacturing means.

図１２に示すように置換用咬合面部を製造するためのシステムは、計測手段４１、ＣＡＤシステム４２、記憶部４３、ＣＡＭシステム４４、置換用咬合面部製造手段４５、置換用咬合面部製造手段４６を備えている。ＣＡＤシステム４２は、計測手段４１、記憶部４３、ＣＡＭシステム４４と接続しており、置換用咬合面部製造手段４５、置換用咬合面部製造手段４６は、それぞれ、ＣＡＭシステム４４に接続している。   As shown in FIG. 12, the system for manufacturing the replacement occlusal surface portion includes a measuring means 41, a CAD system 42, a storage unit 43, a CAM system 44, a replacement occlusal surface portion manufacturing means 45, and a replacement occlusal surface portion manufacturing means 46. I have. The CAD system 42 is connected to the measuring unit 41, the storage unit 43, and the CAM system 44. The replacement occlusal surface part manufacturing unit 45 and the replacement occlusal surface part manufacturing unit 46 are connected to the CAM system 44, respectively.

置換用咬合面部製造手段４５は、ＮＣ切削・研削加工装置、置換用咬合面部製造手段４６は、積層造形装置が例示できる。   The replacement occlusal surface part manufacturing means 45 can be exemplified by an NC cutting / grinding apparatus, and the replacement occlusal surface part manufacturing means 46 can be exemplified by an additive manufacturing apparatus.

記憶部４３には、複数の置換材料に応じた置換用咬合面部の設計データを得ることができるように、置換材料に応じた必要なデータ等が格納されている。   The storage unit 43 stores necessary data and the like corresponding to the replacement material so that the design data of the replacement occlusal surface corresponding to the plurality of replacement materials can be obtained.

置換材料、置換用咬合面部製造手段が指定されると、それに適した処理が行われるようになっている。置換材料、置換用咬合面部製造手段が指定された場合の複数の置換材料に適した汎用のシステムにおける置換材料、置換用咬合面部製造手段が指定された場合の各構成の動作は、置換材料、置換用咬合面部製造手段が指定された図１の専用システムの動作と同様なことから、詳細な説明は省略する。   When the replacement material and the replacement occlusal surface manufacturing means are specified, processing suitable for the replacement material and the replacement occlusal surface manufacturing means is performed. The operation of each component when the replacement material and the replacement occlusal surface manufacturing means are specified in the general-purpose system suitable for a plurality of replacement materials when the replacement material and replacement occlusal surface manufacturing means are specified are the replacement material, Since it is the same as the operation of the dedicated system in FIG. 1 in which the replacement occlusal surface portion manufacturing means is designated, detailed description will be omitted.

１ 計測手段
２ ＣＡＤシステム
３ 記憶部
４ ＣＡＭシステム
５ 置換用咬合面部製造手段 DESCRIPTION OF SYMBOLS 1 Measuring means 2 CAD system 3 Memory | storage part 4 CAM system 5 Replacement occlusal surface part manufacturing means

Claims (8)

合成樹脂、または合成樹脂とセラミックの複合材料の何れかからなり、機能咬合が得られた咬合面部と底部との二重構造を有し、前記咬合面部と底部が接合部で接合された人工臼歯の前記咬合面部と置換するための金属、セラミック、コンポジットレジンの中より選ばれた置換材料からなる置換用咬合面部をＣＡＤ／ＣＡＭシステムを利用して製造する方法であって、
ＣＡＤシステムが、前記咬合面部の三次元形状データに基づき置換用咬合面部の置換材料に応じた設計データを取得する工程、
ＣＡＭシステムが、前記設計データに基づき置換用咬合面部製造手段に応じた置換用咬合面部のＣＡＭデータを取得する工程、
置換用咬合面部製造手段が、前記ＣＡＭデータに基づき制御され置換用咬合面部を製造する工程を含むことを特徴とする人工臼歯の置換用咬合面部の製造方法。 An artificial molar made of either a synthetic resin or a composite material of a synthetic resin and a ceramic, having a double structure of an occlusal surface part and a bottom part where functional occlusion was obtained, and the occlusal surface part and the bottom part joined at a joint part A replacement occlusal surface portion made of a replacement material selected from a metal, a ceramic, and a composite resin for replacing the occlusal surface portion, using a CAD / CAM system,
The CAD system acquires design data corresponding to the replacement material of the replacement occlusal surface based on the three-dimensional shape data of the occlusal surface;
A step in which the CAM system acquires CAM data of the replacement occlusal surface portion according to the replacement occlusal surface portion manufacturing means based on the design data;
A method for producing a replacement occlusal surface portion of an artificial molar, wherein the replacement occlusal surface portion manufacturing means includes a step of manufacturing a replacement occlusal surface portion controlled based on the CAM data. 前記咬合面部の三次元形状データが、前記機能咬合が得られた咬合面部と底部との二重構造を有する人工臼歯の接合部が削除されて前記底部から取り外された前記咬合面部の咬合面側形状と底部との合わせ面側形状を含む全体形状が計測手段により計測された計測データに基づいてＣＡＤシステムで取得された三次元形状データであることを特徴とする請求項１記載の人工臼歯の置換用咬合面部の製造方法。   The occlusal surface side of the occlusal surface portion is removed from the bottom portion by removing the joint portion of the artificial molar having a double structure of the occlusal surface portion and the bottom portion from which the functional occlusion was obtained. 2. The artificial molar according to claim 1, wherein the entire shape including the shape on the mating surface side of the shape and the bottom is three-dimensional shape data acquired by a CAD system based on measurement data measured by the measuring means. Manufacturing method of occlusal surface part for replacement. 前記咬合面部の三次元形状データが、前記機能咬合が得られた咬合面部と底部との二重構造を有する人工臼歯の前記接合部の形状を含む前記咬合面部の咬合面側形状が計測手段により計測された計測データに基づく三次元形状データと、記憶部から読み出された機能咬合の印記前の設計段階における前記咬合面部の底部との合わせ面側形状に対応する三次元形状データに基づきＣＡＤシステムで取得された三次元形状データであることを特徴とする請求項１記載の人工臼歯の置換用咬合面部の製造方法。   The three-dimensional shape data of the occlusal surface portion includes the shape of the joint portion of the artificial molar having a double structure of the occlusal surface portion and the bottom portion where the functional occlusion is obtained. CAD based on the three-dimensional shape data corresponding to the three-dimensional shape data based on the measured measurement data and the mating surface side shape of the bottom portion of the occlusal surface portion in the design stage before the functional occlusion marking read out from the storage unit The method for manufacturing an occlusal surface part for replacement of an artificial molar according to claim 1, which is three-dimensional shape data acquired by the system. 前記置換用咬合面部の置換材料に応じた設計データを、前記ＣＡＭシステムが通信手段を介して取得することを特徴とする請求項１、２または３記載の人工臼歯の置換用咬合面部の製造方法。   4. The method of manufacturing an artificial occlusal replacement occlusal surface according to claim 1, 2 or 3, wherein the CAM system acquires design data corresponding to the replacement material of the replacement occlusal surface through communication means. . 前記置換用咬合面部製造手段が、置換材料のブロックの切削・研削手段であること特徴とする請求項１、２、３または４記載の人工臼歯の置換用咬合面部の製造方法。   5. The method for manufacturing a replacement occlusal surface portion of an artificial molar according to claim 1, wherein the replacement occlusal surface portion manufacturing means is means for cutting and grinding a block of replacement material. 前記置換用咬合面部製造手段が、置換材料の積層造形手段であることを特徴とする請求項１、２、３または４記載の人工臼歯の置換用咬合面部の製造方法。   5. The method for manufacturing an occlusal surface part for replacement of an artificial molar according to claim 1, wherein the replacement occlusal surface part manufacturing means is a layered modeling means of a replacement material. 前記置換材料がジルコニアであることを特徴とする請求項５または６記載の人工臼歯の置換用咬合面部の製造方法。   The method for manufacturing an occlusal surface part for replacement of an artificial molar according to claim 5 or 6, wherein the replacement material is zirconia. 前記ＣＡＤシステムが、前記咬合面部の三次元形状データを反転させ、該反転させた三次元形状データに基づき置換用咬合面部の置換材料に応じた成形型の設計データを取得する工程、
ＣＡＭシステムが、前記設計データに基づき置換用咬合面部成形型の製造手段に応じた置換用咬合面部成形型のＣＡＭデータを取得する工程、
置換用咬合面部成形型製造手段が、前記ＣＡＭデータに基づき制御され置換用咬合面部成形型を製造する工程を含むことを特徴とする請求項１記載の人工臼歯の置換用咬合面部の製造方法。 The CAD system reverses the three-dimensional shape data of the occlusal surface portion, and acquires design data of a mold corresponding to the replacement material of the replacement occlusal surface portion based on the inverted three-dimensional shape data;
A step in which the CAM system acquires the CAM data of the replacement occlusal surface mold according to the manufacturing means of the replacement occlusal surface mold based on the design data;
2. The method for producing a replacement occlusal surface part for artificial molars according to claim 1, wherein the replacement occlusal surface part forming die manufacturing means includes a step of manufacturing a replacement occlusal surface part forming die controlled based on the CAM data.
JP2011086391A 2011-04-08 2011-04-08 Method of manufacturing dental occlusion face part for replacement of artificial posterior tooth Pending JP2012217622A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016208213A1 (en) * 2015-06-25 2016-12-29 パナソニックＩｐマネジメント株式会社 Method for manufacturing three-dimensionally shaped object
JP2017006483A (en) * 2015-06-24 2017-01-12 株式会社ＤｅｎｔａｌＢａｎｋ Dental technical material information application device and dental technical material information application method
CN106535817A (en) * 2014-07-18 2017-03-22 贺利氏古萨有限公司 Dental prosthesis for determining abrasion facets
CN107427347A (en) * 2015-03-24 2017-12-01 古萨有限公司 The manufacture method and the artificial tooth according to the method acquisition of part or complete denture
CN107582194A (en) * 2017-10-16 2018-01-16 北京大学口腔医学院 Dental prosthesis acquisition methods and denture
JP2019130285A (en) * 2018-01-30 2019-08-08 Ｄｇｓｈａｐｅ株式会社 Denture base manufacturing method
CN110811873A (en) * 2019-11-28 2020-02-21 四川大学 Digital molar occlusal surface dental caries repair method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05253248A (en) * 1992-03-10 1993-10-05 Komabayashi Corp:Yugen Computer-aided fabrication of denture through numerical data processing
JP2694223B2 (en) * 1988-05-27 1997-12-24 株式会社ジーシーデンタルプロダクツ Method for replacing artificial tooth for molar and its occlusal surface
JPH10192305A (en) * 1997-01-14 1998-07-28 Advance Co Ltd Production of artificial adaptation material and its device
JPH11128248A (en) * 1997-10-28 1999-05-18 Shozo Tsuyuki System and method for producing artificial tooth
JP2001157686A (en) * 1999-12-02 2001-06-12 Rojitetsuku Kk Method of manufacturing artificial crown, denture and dental plate by lamination and accumulation method
JP2003515429A (en) * 1999-12-07 2003-05-07 イノツェルミック ゲセルシャフト フュール イノヴァティーヴェ ケラミック エムベーハー Method of making ceramic dentures and very durable ceramic dentures produced according to this method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2694223B2 (en) * 1988-05-27 1997-12-24 株式会社ジーシーデンタルプロダクツ Method for replacing artificial tooth for molar and its occlusal surface
JPH05253248A (en) * 1992-03-10 1993-10-05 Komabayashi Corp:Yugen Computer-aided fabrication of denture through numerical data processing
JPH10192305A (en) * 1997-01-14 1998-07-28 Advance Co Ltd Production of artificial adaptation material and its device
JPH11128248A (en) * 1997-10-28 1999-05-18 Shozo Tsuyuki System and method for producing artificial tooth
JP2001157686A (en) * 1999-12-02 2001-06-12 Rojitetsuku Kk Method of manufacturing artificial crown, denture and dental plate by lamination and accumulation method
JP2003515429A (en) * 1999-12-07 2003-05-07 イノツェルミック ゲセルシャフト フュール イノヴァティーヴェ ケラミック エムベーハー Method of making ceramic dentures and very durable ceramic dentures produced according to this method

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10206767B2 (en) 2014-07-18 2019-02-19 Heraeus Kulzer Gmbh Dental prosthesis for determining abrasion facets
CN106535817A (en) * 2014-07-18 2017-03-22 贺利氏古萨有限公司 Dental prosthesis for determining abrasion facets
JP2017524466A (en) * 2014-07-18 2017-08-31 ヘレーウス クルツァー ゲゼルシャフト ミット ベシュレンクテル ハフツングＨｅｒａｅｕｓ Ｋｕｌｚｅｒ ＧｍｂＨ Dental prosthesis for wear surface determination
EP3169270B1 (en) * 2014-07-18 2023-06-07 Kulzer GmbH Dental prosthesis for the determination of wear facets
CN107427347A (en) * 2015-03-24 2017-12-01 古萨有限公司 The manufacture method and the artificial tooth according to the method acquisition of part or complete denture
CN107427347B (en) * 2015-03-24 2021-02-05 古萨有限公司 Method for manufacturing partial or complete dentures and dentures obtained according to this method
JP2018509248A (en) * 2015-03-24 2018-04-05 クルツァー ゲゼルシャフト ミット ベシュレンクテル ハフツングＫｕｌｚｅｒ ＧｍｂＨ Method for producing partial denture or complete denture and prosthesis obtained according to this method
JP2017006483A (en) * 2015-06-24 2017-01-12 株式会社ＤｅｎｔａｌＢａｎｋ Dental technical material information application device and dental technical material information application method
JPWO2016208213A1 (en) * 2015-06-25 2018-03-08 パナソニックＩｐマネジメント株式会社 Manufacturing method of three-dimensional shaped object
WO2016208213A1 (en) * 2015-06-25 2016-12-29 パナソニックＩｐマネジメント株式会社 Method for manufacturing three-dimensionally shaped object
CN107582194B (en) * 2017-10-16 2020-06-02 北京大学口腔医学院 Dental prosthesis acquisition method and denture framework
CN107582194A (en) * 2017-10-16 2018-01-16 北京大学口腔医学院 Dental prosthesis acquisition methods and denture
JP2019130285A (en) * 2018-01-30 2019-08-08 Ｄｇｓｈａｐｅ株式会社 Denture base manufacturing method
JP7240125B2 (en) 2018-01-30 2023-03-15 Ｄｇｓｈａｐｅ株式会社 Denture base manufacturing method
CN110811873A (en) * 2019-11-28 2020-02-21 四川大学 Digital molar occlusal surface dental caries repair method

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