JP2005152069A - Dental articulator and jaw model used for the articulator - Google Patents

Dental articulator and jaw model used for the articulator Download PDF

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JP2005152069A
JP2005152069A JP2003391781A JP2003391781A JP2005152069A JP 2005152069 A JP2005152069 A JP 2005152069A JP 2003391781 A JP2003391781 A JP 2003391781A JP 2003391781 A JP2003391781 A JP 2003391781A JP 2005152069 A JP2005152069 A JP 2005152069A
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jaw model
magnet
support base
jaw
dental articulator
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Matsuyuki Miyake
松之 三宅
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Nissin Co Ltd
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Nissin Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a jaw model easily and quickly attachable to the prescribed position of a supporting base, and a dental articulator. <P>SOLUTION: The dental articulator is composed of the jaw model 1 and a jaw model supporting base 2. At the center part of the jaw model fixing surface of the jaw model supporting base, a ring-like magnet 7 with a center hole is embedded such that the attracting surface of the magnet surfaces on the jaw model fixing surface. On the corresponding position of a jaw model side, a magnet attracting plate 5 and a projected member 6 projected more in an outer side direction than the surface of the magnet attracting plate, provided with an outer diameter one size smaller than the center hole diameter of the magnet and composed of a non-magnetic material, whose tip side part is in a rounded shape, are provided. In the state that the jaw model is off a prescribed attaching position, the tip side part of the projected member is abutted to the part other than the center hole of the magnet and a gap is formed between the magnet and the attracting plate, however, at the prescribed position, the tip side part of the projected member is housed in the center hole of the magnet and fixed and held by magnetic force. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、歯科咬合器及び当該咬合器に用いる顎模型に関するものである。   The present invention relates to a dental articulator and a jaw model used for the articulator.

これまでに、マグネットの磁力を利用して顎模型を支持台に固定する構造の咬合器がいくつか知られているが、これまでの咬合器の場合、顎模型を支持台に近づけると多少決められた位置からずれた位置であっても磁力により顎模型と支持台との間に強力な吸着力が作用して顎模型が固定されてしまい、顎模型を支持台から引き離して再度、正しい位置に取り付け直さなければならないという問題点があった。又、顎模型の取り付け位置を決める手段として、顎模型と支持台の対応する位置に凹部と凸部を設けて嵌め込み固定する構造のもの（例えば下記の特許文献１など）も知られているが、このような咬合器の場合には、経験と感によって手探り状態で凹部と凸部を嵌め合わせなければならず、取り付けに時間がかかるという問題点があった。
特開２００３−９３４０９号公報 So far, there are some known articulators that use a magnet's magnetic force to fix the jaw model to the support base. However, in the case of conventional articulators, it is somewhat decided that the jaw model is close to the support base. Even if the position deviates from the fixed position, a strong attraction force acts between the jaw model and the support base due to the magnetic force, and the jaw model is fixed. There was a problem that it had to be reattached. In addition, as a means for determining the attachment position of the jaw model, there is also known a structure (for example, Patent Document 1 below) in which a concave part and a convex part are provided and fixed at positions corresponding to the jaw model and the support base. In the case of such an articulator, there is a problem in that it takes time to attach the concave portion and the convex portion in a groping state by experience and feeling.
JP 2003-93409 A

本発明は、従来の歯科咬合器の問題点を解決し、簡単かつ迅速に顎模型を正しい位置に固定できる構造を有した歯科咬合器、及びこの咬合器に用いる顎模型を提供することを課題とする。
本発明者は種々検討を行った結果、顎模型側の固定平面部の中央部近傍に、マグネット吸着板の表面から外側方向に突出し、かつ先端側部分が丸みを帯びた形状である突起部（プラスチック等の非磁性材質より成るもの）を設けると共に、支持台（固定台）側の前記突起部と対応する位置にリング状マグネットを設け、顎模型が所定の取り付け位置からずれた位置にある場合には、突起部材の先端側部分がリング状マグネットの中心孔以外の部分に当接することによりマグネットとマグネット吸着板との間に一定の隙間が形成され、マグネットの磁力が小さい状態で顎模型を任意の方向へ摺動できるが、顎模型が所定の取り付け位置に達した際には、突起部材の先端側部分がリング状マグネットの中心孔内に収容されて顎模型が支持台の所定位置に確実に固定保持される構造とすることによって、簡単かつ迅速に顎模型を正しい位置に固定できることを見出して、本発明を完成した。 An object of the present invention is to solve the problems of conventional dental articulators, and to provide a dental articulator having a structure capable of easily and quickly fixing a jaw model in a correct position, and a jaw model used for the articulator. And
As a result of various studies, the inventor has protruded outward from the surface of the magnet attracting plate in the vicinity of the central portion of the fixed flat portion on the jaw model side, and has a protruding portion having a rounded tip end portion ( When the jaw model is located at a position deviated from the specified mounting position, provided with a ring-shaped magnet at a position corresponding to the protrusion on the support base (fixed base) side. The tip part of the protruding member abuts the part other than the center hole of the ring-shaped magnet, so that a certain gap is formed between the magnet and the magnet adsorption plate, and the jaw model is operated with the magnet having a small magnetic force. Although it can slide in any direction, when the jaw model reaches a predetermined mounting position, the tip side portion of the protruding member is accommodated in the center hole of the ring-shaped magnet, and the jaw model is fixed to the predetermined position of the support base. By the structure that is securely fixed and held to the location, and found that can be fixed easily and quickly correct position the jaw model, the present invention has been completed.

即ち、本発明の歯科咬合器は、口腔内における歯牙の植立状態を模した顎模型と、前記顎模型を固定保持するための顎模型支持台とから成り、前記顎模型を前記顎模型支持台の所定位置に着脱可能に取り付けて使用される歯科咬合器であって、前記顎模型支持台の顎模型固定面の中央部分には、取り付け位置決め用の中心孔を有したリング状のマグネットが、当該マグネットの吸着面が前記顎模型固定面に表出するようにして埋設されており、一方、前記顎模型の、前記顎模型支持台のマグネットと対応する位置には、当該マグネットが吸着し得る材質より成るマグネット吸着板と、当該マグネット吸着板の表面よりも外側方向に突出し、先端側部分が丸味を帯びた形状で、前記マグネットの中心孔の内径よりも一回り小さな外径を有した、非磁性材質より成る取り付け位置誘導用の突起部材が設けられており、前記顎模型を前記顎模型支持台に取り付ける際、前記顎模型が所定の取り付け位置からずれた状態では、前記突起部材の先端側部分が前記マグネットの中心孔以外の部分に当接して、当該マグネットとマグネット吸着板との間に一定の隙間が形成されることにより強力な磁力が働かずに前記顎模型を任意の方向へ摺動可能であるが、前記顎模型が所定の取り付け位置に達した際には、前記突起部材の先端側部分が前記マグネットの中心孔に収容され、かつ前記マグネットの磁力によって前記顎模型が前記顎模型支持台に固定保持される構造であることを特徴とする。   That is, the dental articulator according to the present invention comprises a jaw model that imitates the state of tooth implantation in the oral cavity, and a jaw model support for holding the jaw model fixedly, and the jaw model is supported by the jaw model. A dental articulator that is used by being detachably attached to a predetermined position of a table, and a ring-shaped magnet having a central hole for mounting and positioning is provided at a central portion of the jaw model fixing surface of the jaw model support table. The magnet is embedded so that the attracting surface of the magnet is exposed to the jaw model fixing surface, while the magnet is attracted to the jaw model at a position corresponding to the magnet of the jaw model support base. A magnet attracting plate made of a material to be obtained, and a shape that protrudes outward from the surface of the magnet attracting plate, the tip side portion is rounded, and has an outer diameter that is slightly smaller than the inner diameter of the center hole of the magnet. , A projecting member for mounting position guidance made of a magnetic material is provided, and when the jaw model is mounted on the jaw model support base, when the jaw model is displaced from a predetermined mounting position, the tip side of the projecting member The part touches the part other than the center hole of the magnet, and a certain gap is formed between the magnet and the magnet attracting plate, so that the strong magnetic force does not act and the jaw model is slid in an arbitrary direction. When the jaw model reaches a predetermined mounting position, the tip side portion of the projecting member is accommodated in the center hole of the magnet, and the jaw model is moved by the magnetic force of the magnet. The structure is fixed and held on the model support base.

又、本発明は、前述の特徴を有した歯科咬合器において、前記マグネット吸着板の表面からの前記突起部材の突起高さが３〜６ｍｍであることを特徴とするものでもある。
更に本発明は、前述の特徴を有した歯科咬合器において、前記顎模型のマグネット吸着板の周縁の少なくとも一部に実質的にＵ字状の切り欠き部が設けられており、前記顎模型支持台の顎模型固定面には、前記切り欠き部と対応する位置に位置決めピンが設けられており、前記顎模型を前記顎模型支持台の所定の位置に取り付けた際に、前記位置決めピンが前記切り欠き部に嵌合される構造であることを特徴とするものでもある。 In the dental articulator having the above-mentioned characteristics, the present invention is also characterized in that the protrusion height of the protrusion member from the surface of the magnet suction plate is 3 to 6 mm.
Furthermore, the present invention provides the dental articulator having the above-described features, wherein a substantially U-shaped notch is provided at least at a part of the periphery of the magnet adsorption plate of the jaw model, The jaw model fixing surface of the base is provided with a positioning pin at a position corresponding to the notch, and when the jaw model is attached to a predetermined position of the jaw model support base, the positioning pin is It is also characterized in that the structure is fitted into the notch.

又、本発明は、口腔内における歯牙の植立状態を模した顎模型であって、当該顎模型を固定保持するための顎模型支持台の所定位置に取り付けて使用されるものにおいて、前記顎模型の中央部分には、マグネットが吸着し得る材質より成るマグネット吸着板と、当該マグネット吸着板の表面よりも外側方向に突出した取り付け位置誘導用の突起部材が設けられており、前記突起部材が、先端側部分が丸味を帯びた形状を有し、非磁性材質にて構成されていることを特徴とするものでもある。
更に本発明は、前述の特徴を有した顎模型において、前記マグネット吸着板の表面からの前記突起部材の突起高さが３〜６ｍｍであることを特徴とするものでもある。 Further, the present invention is a jaw model imitating an implanted state of a tooth in the oral cavity, which is used by being attached to a predetermined position of a jaw model support for fixing and holding the jaw model. The central part of the model is provided with a magnet attracting plate made of a material that can attract the magnet, and a projecting member for guiding the mounting position projecting outward from the surface of the magnet attracting plate. The tip side portion has a rounded shape and is made of a nonmagnetic material.
Furthermore, the present invention is characterized in that, in the jaw model having the above-described features, the projection height of the projection member from the surface of the magnet attracting plate is 3 to 6 mm.

本発明の歯科咬合器の場合、顎模型が顎模型支持台の所定位置に達するまではマグネットとマグネット吸着板との間に一定の隙間が形成されることで強力な磁力が働かず、突起部材の先端側部分が丸みを帯びた形状であることによりマグネットに損傷を与えることなく比較的弱い力で顎模型を前後左右に移動させることができ、所定位置への取り付けが迅速に行えるという利点がある。又、上記の構造を有した本発明の顎模型は、簡単かつ迅速に支持台の所定位置に取り付けることができ非常に便利である。   In the case of the dental articulator of the present invention, until the jaw model reaches a predetermined position of the jaw model support base, a strong magnetic force does not work because a certain gap is formed between the magnet and the magnet suction plate, and the protruding member The tip side part of the arm is rounded so that the jaw model can be moved back and forth and left and right with a relatively weak force without damaging the magnet. is there. Further, the jaw model of the present invention having the above-described structure is very convenient because it can be easily and quickly attached to a predetermined position of the support base.

まず、本発明の歯科咬合器の好ましい一例を図面に示して、本発明を説明する。
図１は、本発明の歯科咬合器の構造の一例を示す分解図である。図１に示されるように、本発明の歯科咬合器は、口腔内における歯牙の植立状態を模した顎模型（上顎模型と下顎模型）１と、この顎模型１を着脱可能に取り付けるための顎模型支持台（上顎模型支持台と下顎模型支持台）２とから構成されており、この顎模型１には、歯牙(模型歯）固定用ネジ３によって歯牙４が固定されており、顎模型支持台２と対向する固定面側には、歯牙４よりなる馬蹄型歯列の内側に位置するようにして、マグネットが吸着し得る材質より成るマグネット吸着板５が取り付けられている。尚、この図１の顎模型では、マグネット吸着板５がネジ留めによって顎模型１に固定されているが、マグネット吸着板５の取り付け方法はこれに限定されるものではない。
そして、本発明の歯科咬合器にあっては、顎模型１の固定面側の中央部分に、先端側部分が丸味を帯びた形状の突起部材６が設けられており、この突起部材６の先端側部分は、マグネット吸着板５の表面（吸着面）よりも外側方向に突出しており、一定の滑り性を有し、かつマグネットが吸着しないような非磁性材料から構成されており、顎模型を正しい取り付け位置に誘導する際に機能する。
一方、顎模型１を固定保持するための顎模型支持台２の顎模型固定面の中央部には、顎模型１のマグネット吸着板５と対応するようにして、図１に示されるような中心孔（取り付け位置決め孔）を有したリング状のマグネット７が、当該マグネット７の吸着面が顎模型固定面と同一表面を形成するように表出して埋設されている。この際、突起部材６の先端側部分の外径は、マグネット７の中心孔の内径よりも一回り小さく、顎模型１が支持台２の決められた位置に達した時に、突起部材６の先端側部分がマグネット７の中心孔内に収容されるようになっている（図１の下顎側の突起部材６及びマグネット７を参照）。 First, a preferred example of the dental articulator of the present invention will be described with reference to the drawings.
FIG. 1 is an exploded view showing an example of the structure of the dental articulator of the present invention. As shown in FIG. 1, the dental articulator of the present invention is a jaw model (upper jaw model and lower jaw model) 1 that imitates the planting state of a tooth in the oral cavity, and for attaching the jaw model 1 detachably. It consists of a jaw model support base (upper jaw model support base and lower jaw model support base) 2, and a tooth 4 is fixed to the jaw model 1 by a tooth (model tooth) fixing screw 3. A magnet attracting plate 5 made of a material capable of attracting a magnet is attached to the fixed surface facing the support base 2 so as to be positioned inside a horseshoe-shaped dentition composed of teeth 4. In the jaw model of FIG. 1, the magnet attracting plate 5 is fixed to the jaw model 1 by screwing, but the attaching method of the magnet attracting plate 5 is not limited to this.
In the dental articulator of the present invention, the protruding member 6 having a rounded tip end portion is provided at the center portion on the fixed surface side of the jaw model 1. The side portion protrudes outward from the surface (attraction surface) of the magnet adsorption plate 5 and is made of a non-magnetic material that has a certain slip property and does not attract the magnet. It works when guiding to the correct mounting position.
On the other hand, a center as shown in FIG. 1 is provided at the center of the jaw model fixing surface of the jaw model support 2 for fixing and holding the jaw model 1 so as to correspond to the magnet attracting plate 5 of the jaw model 1. A ring-shaped magnet 7 having a hole (attachment positioning hole) is exposed and embedded so that the attracting surface of the magnet 7 forms the same surface as the jaw model fixing surface. At this time, the outer diameter of the tip side portion of the projection member 6 is slightly smaller than the inner diameter of the central hole of the magnet 7, and when the jaw model 1 reaches a predetermined position of the support base 2, The side portion is accommodated in the center hole of the magnet 7 (see the protrusion member 6 and the magnet 7 on the lower jaw side in FIG. 1).

本発明の歯科咬合器では、図１に示されるような構造を有した顎模型１を顎模型支持台２に取り付ける際、顎模型１の位置が所定の取り付け位置からずれた状態では、丸みを帯びた先端形状を有した突起部材６の先端側部分が、顎模型支持台２の顎模型固定面を傷付けることなく、マグネット７の中心孔以外の部分に当接して、マグネット７とマグネット吸着板５との間に一定の隙間が形成されることにより強力な磁力が働かないために、弱い力で顎模型１を任意の方向へ摺動できるようになっている。そして、顎模型１が所定の取り付け位置に達した際には、突起部材６の先端側部分がマグネット７の中心孔に収容されることによって、マグネット７とマグネット吸着板５とが密接してマグネット７の磁力により顎模型１が顎模型支持台２の所定の位置に固定保持される。
図２は、本発明の歯科咬合器の好ましい一例における側面図であり、この咬合器にあっては、生体における口腔部の様子が再現されるようにして上顎模型支持台と下顎模型支持台が、ヒンジ部を有した固定装置に取り付けられており、上顎模型と下顎模型を口を開いた状態とすることによって実際の患者に近い感覚で実習を行うことができる。 In the dental articulator of the present invention, when the jaw model 1 having the structure as shown in FIG. 1 is attached to the jaw model support base 2, the jaw model 1 is rounded when the position of the jaw model 1 deviates from a predetermined attachment position. The tip side portion of the protruding member 6 having a tinged tip shape abuts the portion other than the center hole of the magnet 7 without damaging the jaw model fixing surface of the jaw model support base 2, and the magnet 7 and the magnet suction plate Since a strong magnetic force does not work when a certain gap is formed between the jaw model 1 and the jaw model 1, the jaw model 1 can be slid in an arbitrary direction with a weak force. When the jaw model 1 reaches a predetermined mounting position, the tip side portion of the protruding member 6 is accommodated in the center hole of the magnet 7 so that the magnet 7 and the magnet attracting plate 5 are in close contact with each other. The jaw model 1 is fixedly held at a predetermined position of the jaw model support 2 by the magnetic force of 7.
FIG. 2 is a side view of a preferred example of the dental articulator according to the present invention. In this articulator, the upper jaw model support base and the lower jaw model support base are provided so that the state of the oral cavity in the living body is reproduced. It is attached to a fixing device having a hinge part, and training can be performed with a sense close to that of an actual patient by opening the upper jaw model and the lower jaw model with the mouth open.

本発明の歯科咬合器における顎模型支持台２に埋設されるマグネット７は、口蓋部分と呼ばれる馬蹄型歯列の内側に設置せざるを得ない制約があり、この狭い面積の中でマグネットはできるだけ大径の面積を確保する必要があり、好ましくはφ２０ｍｍ〜φ３０ｍｍの範囲の中で設定される。本発明にて使用されるマグネット７としては、例えば外径２２ｍｍのヨ−クに組み込まれたマグネットユニットが好ましく、一般的にはこのような大きさのマグネットユニットの表面磁束密度は約３８００〜３９００ガウスで、マグネット吸着板５としてＳＵＳ４１０板を用いた場合、両者の間には約１３〜１４ｋｇの吸着力（磁力）が働く。吸着力は磁石から距離の２乗に反比例するというクーロンの法則から、上記マグネットとステンレス板の場合、０ミリの距離の時は１３〜１４ｋｇの吸着力であるが、２ｍｍも離れると３〜４ｋｇとなり、４ｍｍ離れた時は０．２〜０．３ｋｇほどしか無くなる。本発明におけるマグネット７は、一般に、ヨークと呼ばれるマグネットの保護の役目と裏面に逃げてしまう磁束を表に廻して利用するためのドーナツ状マグネットの外形に存在するが、マグネット中心は顎模型支持台を固定用摘み８にてネジ留めするために貫通穴となっており、好ましくはＭ６ネジを通すためにφ７ｍｍの中心孔が開いている。   The magnet 7 embedded in the jaw model support 2 in the dental articulator of the present invention has a restriction that must be installed inside a horseshoe-shaped dentition called a palate portion. It is necessary to secure a large-diameter area, and preferably it is set within a range of φ20 mm to φ30 mm. As the magnet 7 used in the present invention, for example, a magnet unit incorporated in a yoke having an outer diameter of 22 mm is preferable, and the surface magnetic flux density of such a magnet unit is generally about 3800 to 3900. When a SUS410 plate is used as the magnet attracting plate 5 with Gauss, an attracting force (magnetic force) of about 13 to 14 kg acts between them. From Coulomb's law that the attractive force is inversely proportional to the square of the distance from the magnet, the magnet and the stainless steel plate have an attractive force of 13 to 14 kg at a distance of 0 mm, but 3 to 4 kg when 2 mm away. When the distance is 4 mm, it is only about 0.2 to 0.3 kg. The magnet 7 in the present invention is generally present in the outer shape of a donut-shaped magnet for the purpose of protecting the magnet called a yoke and the magnetic flux escaping to the back surface to be used. Is a through hole for screwing with a fixing knob 8, and a center hole of φ7 mm is preferably opened to allow an M6 screw to pass through.

一方、本発明の歯科咬合器における顎模型１側に設けられる突起部材６は、顎模型１の位置が所定の取り付け位置からずれた状態にあるときに、マグネット７とマグネット吸着板５との間に強い磁力が作用しないような隙間が形成されるよう、マグネット吸着板の表面からの突起高さが３〜６ｍｍであるものが好ましく、４〜５ｍｍが特に好ましい。例えば、マグネット７が前述の７ｍｍの中心孔を有するものである場合、この中心孔を利用して６ｍｍの外径で、かつ先端部がスムースに摺動し易い円弧形状であるか紡錘形である突起部材（ガイドピン）を４〜５ｍｍの突起高さとなるように設けることにより、強い磁力が発生しない距離を確保しながら位置誘導操作が行え、マグネット７の中心孔に至った瞬間に強い磁力で吸着されるのでスムースな装着操作が可能となる利点が得られる。
本発明では、吸着に至るまでの顎模型１のスムースな摺動（移動）を行わさせるため、突起部材６の材質は滑りの良い樹脂を用いるのが好ましく、例えばポリオキシメチレン樹脂（アセタール樹脂）が好適であり、市販されているジュラコン(登録商標）、デルリン(登録商標）などの樹脂が利用できる。一般に、マグネット本体は焼き物であるために脆い性質を有しており、金属製の突起部材を摺動させた場合にはマグネット表面が傷が付き、衝撃的に突起部材が当たるとマグネットが破損する恐れがあるので好ましくない。本発明では、上記のアセタール樹脂製の突起部材６が存在することにより脆いマグネットを保護することができる。
本発明は、上述の構造を有した顎模型（上顎模型及び下顎模型）でもあり、患者の歯列状態（歯牙の植立状態）を再現した顎模型を作製し、前述の支持台に取り付けることによって、実際の患者と同様の条件下で補綴実習や保存・修復実習を行うことができ、実習後の顎模型を支持台から取り外して交換することで繰り返し実習が行える。 On the other hand, the protruding member 6 provided on the jaw model 1 side in the dental articulator of the present invention is located between the magnet 7 and the magnet suction plate 5 when the position of the jaw model 1 is deviated from a predetermined mounting position. The height of the protrusion from the surface of the magnet suction plate is preferably 3 to 6 mm, and particularly preferably 4 to 5 mm so that a gap is formed so that no strong magnetic force acts on the magnet. For example, in the case where the magnet 7 has the above-mentioned 7 mm center hole, the projection having an outer diameter of 6 mm using the center hole and having an arc shape or a spindle shape with which the tip portion can easily slide smoothly. By providing a member (guide pin) with a projection height of 4 to 5 mm, position guiding operation can be performed while securing a distance that does not generate strong magnetic force, and at the moment when it reaches the center hole of magnet 7, it is attracted by strong magnetic force. Therefore, an advantage that a smooth mounting operation is possible is obtained.
In the present invention, in order to perform smooth sliding (movement) of the jaw model 1 until adsorption, it is preferable to use a resin having good sliding property as the material of the protruding member 6, for example, polyoxymethylene resin (acetal resin). And commercially available resins such as Duracon (registered trademark) and Delrin (registered trademark) can be used. In general, the magnet body is baked, so it has brittle properties. When a metal protruding member is slid, the surface of the magnet is damaged, and if the protruding member hits the shock, the magnet is damaged. This is not preferable because of fear. In the present invention, a brittle magnet can be protected by the presence of the above-mentioned protruding member 6 made of acetal resin.
The present invention is also a jaw model (upper jaw model and lower jaw model) having the above-described structure, and a jaw model that reproduces a patient's dentition state (tooth placement state) is prepared and attached to the above-mentioned support base. Thus, prosthetic training and preservation / restoration training can be performed under conditions similar to those of an actual patient, and repeated training can be performed by removing and replacing the jaw model after training.

更に本発明の歯科咬合器においては、顎模型１を支持台２の同一位置に復元装着させるために、図１に示されるようにして、顎模型１のマグネット吸着板５の周縁部に実質的にＵ字状の切り欠き部９を設け、顎模型支持台２の顎模型固定面の、切り欠き部９と対応する位置に位置決めピン（ガイドピン）１０を設け、顎模型１を顎模型支持台２の所定の位置に取り付けた際に、位置決めピン１０が切り欠き部９に嵌合される構造であることが好ましい。尚、図１の歯科咬合器では、マグネット吸着板５の口腔奥側に切り欠き部９が設けられており、マグネット吸着板５の口腔手前側には、顎模型支持台２に設けられた位置決めピン１０’の先端側部分が嵌入されるように位置決め孔１１が設けられている。
歯科咬合器においては、図１に示されるような、２つの位置決めピンによって取り付け位置の規制を行う場合、大小各種の模型が存在することから輪郭部分に近い所に位置決めピンを設けることができず、口蓋部分と呼ばれる馬蹄型歯列の内側に設置せざるを得ないという制約がある。このように、上記の狭い範囲内で二つのガイドピンを設定せざるを得ない場合、現実的には位置決めピン１０，１０’の直径（外径）は２ｍｍ〜４ｍｍの範囲が好ましく、位置決めピンに有利な大きな径が取りにくい。
図３は、人間の頭部を模した頭部模型１２に、本発明の歯科咬合器を取り付けた際の各部の位置関係を示す図であり、この図面には、マグネット７の中心孔と突起部材６の位置関係、マグネット吸着板５のＵ字状切り欠き部９と位置決めピン１０の位置関係及び、マグネット吸着板５の位置決め孔１１と位置決めピン１０’の位置関係が示されている。 Furthermore, in the dental articulator of the present invention, in order to restore and mount the jaw model 1 to the same position of the support base 2, as shown in FIG. Is provided with a U-shaped notch 9, a positioning pin (guide pin) 10 is provided at a position corresponding to the notch 9 on the jaw model fixing surface of the jaw model support base 2, and the jaw model 1 is supported by the jaw model It is preferable that the positioning pin 10 is fitted to the notch 9 when attached to a predetermined position of the table 2. In the dental articulator of FIG. 1, a notch 9 is provided on the back side of the oral cavity of the magnet suction plate 5, and the positioning provided on the jaw model support base 2 on the front side of the oral cavity of the magnet suction plate 5. A positioning hole 11 is provided so that the tip side portion of the pin 10 'is inserted.
In the dental articulator, when the mounting position is restricted by two positioning pins as shown in FIG. 1, the positioning pins cannot be provided near the contour portion because various models of large and small exist. There is a restriction that it must be installed inside the horseshoe-shaped dentition called the palate. As described above, when the two guide pins must be set within the narrow range, the diameter (outer diameter) of the positioning pins 10 and 10 'is preferably in the range of 2 mm to 4 mm. It is difficult to obtain a large diameter that is advantageous to
FIG. 3 is a diagram showing the positional relationship of each part when the dental articulator of the present invention is attached to the head model 12 simulating a human head. In this figure, the center hole and the protrusion of the magnet 7 are shown. The positional relationship of the member 6, the positional relationship between the U-shaped notch 9 of the magnet attracting plate 5 and the positioning pin 10, and the positional relationship between the positioning hole 11 of the magnet attracting plate 5 and the positioning pin 10 ′ are shown.

本発明の歯科咬合器の場合、顎模型が顎模型支持台の所定位置に達するまではマグネットとマグネット吸着板との間に一定の隙間が形成されるために強力な磁力が働かず、弱い力で顎模型を前後左右に移動させることができ、簡単かつ迅速に支持台の所定位置に取り付け可能である。又、患者に応じて、歯牙の植立状態を再現した本発明の顎模型を作製することで、実際の患者と同様の条件下で補綴実習や保存・修復実習が行える。   In the case of the dental articulator of the present invention, until the jaw model reaches a predetermined position on the jaw model support base, a strong gap is formed between the magnet and the magnet adsorption plate, so that a strong magnetic force does not work and a weak force The jaw model can be moved back and forth and left and right, and can be easily and quickly attached to a predetermined position of the support base. In addition, by creating a jaw model of the present invention that reproduces the dental planting state according to the patient, prosthetic training and preservation / restoration training can be performed under the same conditions as in an actual patient.

本発明の歯科咬合器の構造の一例を示す分解図である。It is an exploded view which shows an example of the structure of the dental articulator of this invention. 本発明の歯科咬合器の好ましい一例における側面図である。It is a side view in a preferable example of the dental articulator of the present invention. 人間の頭部を模した頭部模型１２に、本発明の歯科咬合器を取り付けた際の各部の位置関係を示す図である。It is a figure which shows the positional relationship of each part at the time of attaching the dental articulator of this invention to the head model 12 imitating a human head.

符号の説明Explanation of symbols

１ 顎模型
２ 顎模型支持台
３ 歯牙固定用ネジ
４ 歯牙
５ マグネット吸着板
６ 突起部材
７ マグネット
８ 固定用摘み
９ 切り欠き部
１０、１０’ 位置決めピン
１１ 位置決め孔
１２ 頭部模型 DESCRIPTION OF SYMBOLS 1 Jaw model 2 Jaw model support stand 3 Screw for tooth fixation 4 Tooth 5 Magnet adsorption plate 6 Projection member 7 Magnet 8 Fixing knob 9 Notch part 10, 10 'Positioning pin 11 Positioning hole 12 Head model

Claims (5)

口腔内における歯牙の植立状態を模した顎模型と、前記顎模型を固定保持するための顎模型支持台とから成り、前記顎模型を前記顎模型支持台の所定位置に着脱可能に取り付けて使用される歯科咬合器であって、前記顎模型支持台の顎模型固定面の中央部分には、取り付け位置決め用の中心孔を有したリング状のマグネットが、当該マグネットの吸着面が前記顎模型固定面に表出するようにして埋設されており、一方、前記顎模型の、前記顎模型支持台のマグネットと対応する位置には、当該マグネットが吸着し得る材質より成るマグネット吸着板と、当該マグネット吸着板の表面よりも外側方向に突出し、先端側部分が丸味を帯びた形状で、前記マグネットの中心孔の内径よりも一回り小さな外径を有した、非磁性材質より成る取り付け位置誘導用の突起部材が設けられており、前記顎模型を前記顎模型支持台に取り付ける際、前記顎模型が所定の取り付け位置からずれた状態では、前記突起部材の先端側部分が前記マグネットの中心孔以外の部分に当接して、当該マグネットとマグネット吸着板との間に一定の隙間が形成されることにより強力な磁力が働かずに前記顎模型を任意の方向へ摺動可能であるが、前記顎模型が所定の取り付け位置に達した際には、前記突起部材の先端側部分が前記マグネットの中心孔に収容され、かつ前記マグネットの磁力によって前記顎模型が前記顎模型支持台に固定保持される構造であることを特徴とする歯科咬合器。 It consists of a jaw model that mimics the state of tooth implantation in the oral cavity, and a jaw model support base for fixing and holding the jaw model, and the jaw model is removably attached to a predetermined position of the jaw model support base. A dental articulator used, wherein a ring-shaped magnet having a central hole for mounting and positioning is provided at a central portion of a jaw model fixing surface of the jaw model support base, and an attraction surface of the magnet is the jaw model On the other hand, at the position corresponding to the magnet of the jaw model support base of the jaw model, a magnet attracting plate made of a material that can be attracted by the magnet, A mounting position made of a non-magnetic material that protrudes outward from the surface of the magnet suction plate, has a rounded tip, and has an outer diameter that is slightly smaller than the inner diameter of the center hole of the magnet. A guide projection member is provided, and when the jaw model is attached to the jaw model support base, the tip side portion of the projection member is the center of the magnet when the jaw model is displaced from a predetermined attachment position. The jaw model can be slid in any direction without a strong magnetic force acting by contacting a part other than the hole and forming a certain gap between the magnet and the magnet suction plate, When the jaw model reaches a predetermined mounting position, the tip side portion of the protruding member is accommodated in the center hole of the magnet, and the jaw model is fixedly held on the jaw model support by the magnetic force of the magnet. A dental articulator characterized by having a structure. 前記マグネット吸着板の表面からの前記突起部材の突起高さが３〜６ｍｍであることを特徴とする請求項１に記載の歯科咬合器。 The dental articulator according to claim 1, wherein the protrusion height of the protrusion member from the surface of the magnet attracting plate is 3 to 6 mm. 前記顎模型のマグネット吸着板の周縁の少なくとも一部に実質的にＵ字状の切り欠き部が設けられており、前記顎模型支持台の顎模型固定面には、前記切り欠き部と対応する位置に位置決めピンが設けられており、前記顎模型を前記顎模型支持台の所定の位置に取り付けた際に、前記位置決めピンが前記切り欠き部に嵌合される構造であることを特徴とする請求項１又は２に記載の歯科咬合器。 A substantially U-shaped notch is provided on at least a part of the periphery of the magnet adsorption plate of the jaw model, and the jaw model fixing surface of the jaw model support base corresponds to the notch. A positioning pin is provided at a position, and the positioning pin is fitted to the notch when the jaw model is attached to a predetermined position of the jaw model support base. The dental articulator according to claim 1 or 2. 口腔内における歯牙の植立状態を模した顎模型であって、当該顎模型を固定保持するための顎模型支持台の所定位置に取り付けて使用されるものにおいて、前記顎模型の中央部分には、マグネットが吸着し得る材質より成るマグネット吸着板と、当該マグネット吸着板の表面よりも外側方向に突出した取り付け位置誘導用の突起部材が設けられており、前記突起部材が、先端側部分が丸味を帯びた形状を有し、非磁性材質にて構成されていることを特徴とする顎模型。 In a jaw model simulating the state of tooth implantation in the oral cavity, which is used by being attached to a predetermined position of a jaw model support base for fixing and holding the jaw model, A magnet attracting plate made of a material that can be attracted by the magnet, and a projecting member for guiding the mounting position projecting outward from the surface of the magnet attracting plate. A jaw model characterized by having a tinged shape and made of a non-magnetic material. 前記マグネット吸着板の表面からの前記突起部材の突起高さが３〜６ｍｍであることを特徴とする請求項４に記載の顎模型。 The jaw model according to claim 4, wherein a protrusion height of the protrusion member from the surface of the magnet attracting plate is 3 to 6 mm.
JP2003391781A 2003-11-21 2003-11-21 Dental articulator and jaw model used for the articulator Pending JP2005152069A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100796464B1 (en) 2006-07-27 2008-01-24 김현동 Articulator For A Dental Technician connection a fixed carrier
WO2012068348A2 (en) * 2010-11-19 2012-05-24 Wrengineering, Inc. Dental manikin
CN103366626A (en) * 2013-07-26 2013-10-23 江阴金泰克生物技术有限公司 Dental implant surgery simulation console
KR20190127006A (en) * 2018-05-03 2019-11-13 경북대학교 산학협력단 Integrated tooth model assembly device and system containing the same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100796464B1 (en) 2006-07-27 2008-01-24 김현동 Articulator For A Dental Technician connection a fixed carrier
WO2012068348A2 (en) * 2010-11-19 2012-05-24 Wrengineering, Inc. Dental manikin
WO2012068348A3 (en) * 2010-11-19 2012-08-30 Wrengineering, Inc. Dental manikin
CN103210437A (en) * 2010-11-19 2013-07-17 Wr工程公司 Dental manikin
CN103366626A (en) * 2013-07-26 2013-10-23 江阴金泰克生物技术有限公司 Dental implant surgery simulation console
CN103366626B (en) * 2013-07-26 2016-05-25 江阴金泰克生物技术有限公司 Tooth-planting surgical simulation operating desk
KR20190127006A (en) * 2018-05-03 2019-11-13 경북대학교 산학협력단 Integrated tooth model assembly device and system containing the same
KR102069133B1 (en) * 2018-05-03 2020-01-22 경북대학교 산학협력단 Integrated tooth model assembly device and system containing the same

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