TWI474805B - Dental drill, drill set, and method of drilling alveolar bone - Google Patents

Dental drill, drill set, and method of drilling alveolar bone Download PDF

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TWI474805B
TWI474805B TW101130346A TW101130346A TWI474805B TW I474805 B TWI474805 B TW I474805B TW 101130346 A TW101130346 A TW 101130346A TW 101130346 A TW101130346 A TW 101130346A TW I474805 B TWI474805 B TW I474805B
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cutting
dental drill
groove
central axis
guiding
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TW101130346A
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TW201315447A (en
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Kyoo Ok Choi
Ji Hoon Yoon
Kwang Hoon Kim
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Osstem Implant Co Ltd
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0089—Implanting tools or instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C3/00—Dental tools or instruments
    • A61C3/02—Tooth drilling or cutting instruments; Instruments acting like a sandblast machine
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
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  • Orthopedic Medicine & Surgery (AREA)
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  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Dental Prosthetics (AREA)
  • Surgical Instruments (AREA)

Description

牙鑽、鑽頭組以及鑽齒槽骨的方法Dental drill, drill bit set and method for drilling tooth groove 【相關專利申請案之交叉參考】[Cross-Reference to Related Patent Applications]

本申請案主張在2011年9月22日向韓國智慧財產局申請之韓國專利申請案第10-2011-0095846號的權利，該案之全部揭露內容以引用的方式併入本文中。The present application claims the benefit of the Korean Patent Application No. 10-2011-0095846, filed on Sep. 22, 2011, to the Korean Intellectual Property Office, the entire disclosure of which is hereby incorporated by reference.

本發明是關於牙鑽、鑽頭組以及鑽齒槽骨之方法，且更特定言之，是關於用於提高排出碎骨之能力以及切割效率的牙鑽、鑽頭組以及鑽齒槽骨之方法。The present invention relates to a dental drill, a drill bit set, and a method of drilling a toothed bone, and more particularly to a dental drill, a drill bit set, and a method of drilling a toothed bone for improving the ability to discharge broken bones and cutting efficiency.

植入物一般指失去的身體組織之替代物，且在牙科領域中指人造牙齒。植入物現今廣泛地用於替代損壞或失去的牙齒。Implants generally refer to replacements for lost body tissue and refer to artificial teeth in the dental field. Implants are now widely used to replace damaged or lost teeth.

人造牙齒是藉由以下操作而植入：用鑽頭鑽齒槽骨以便形成鑽孔；藉由將夾具之螺桿單元擰至鑽孔中而***夾具；將支台齒(abutment)耦接至固定至齒槽骨之夾具的上端；以及接著用假體(prosthesis)覆蓋支台齒。The artificial tooth is implanted by drilling a toothed groove with a drill bit to form a drill hole; inserting a clamp by screwing a screw unit of the clamp into the drilled hole; coupling the abutment abutment to the fixed to The upper end of the jaw of the alveolar bone; and then the abutment teeth are covered with a prosthesis.

植入人造牙齒之過程包含骨去除過程，骨去除過程指藉由使用鑽頭形成夾具***且固定於齒槽骨中之鑽孔的過程。鑽孔是藉由擴大由初始鑽頭形成之溝槽以便具有幾乎與鑽孔相等或大於鑽孔之大小而形成。The process of implanting an artificial tooth includes a bone removal process, which is a process of forming a hole inserted into the alveolar bone by using a drill bit to form a jig. The drilling is formed by expanding the groove formed by the initial drill bit so as to have a size almost equal to or larger than the diameter of the bore.

作為牙鑽之引用參考的美國專利公開案第US2006/0210949號揭露具有具導向功能之多階結構的牙鑽。引用參考之牙鑽以特定方式組態，此方式使得後鑽頭 執行前鑽頭之導向功能且工具的數目減少。A dental drill having a multi-step structure having a guiding function is disclosed in U.S. Patent Publication No. US2006/0210949, which is incorporated herein by reference. The reference drill is configured in a specific way, which makes the rear drill bit The guiding function of the drill bit before execution is performed and the number of tools is reduced.

作為引用參考之韓國專利第893287號揭露具有多階結構之牙植入鑽頭，其中包含上面形成有刀片之多個階梯的多階部分經設置以使得施加至牙植入鑽頭之推力負載(thrust load)藉由提高施加至牙植入鑽頭之外圓周的推力負載且減小施加至牙植入鑽頭之中心的推力負載而為恆定的，以便最小化切割溫度，使得骨屑(chip)藉由將切割力規則地分佈至刀片而平滑地排出，以便最小化切割溫度。另外，夾具可植入之鑽孔藉由單一鑽孔操作而形成，且植入操作所需的時間減少。另外，多階部分以及前端部分具有與夾具之下端部分類似的形狀以便增大夾具之下端部分接觸骨的面積，藉此提高初始固定力。Korean Patent No. 893287, which is incorporated by reference, discloses a dental implant drill having a multi-stage structure in which a multi-step portion including a plurality of steps on which a blade is formed is disposed so as to be applied to a thrust load of a dental implant drill bit (thrust load) ) is constant by increasing the thrust load applied to the outer circumference of the dental implant bit and reducing the thrust load applied to the center of the dental implant bit to minimize the cutting temperature so that the chip The cutting force is regularly distributed to the blade to be smoothly discharged to minimize the cutting temperature. In addition, the implant-implantable drill holes are formed by a single drilling operation, and the time required for the implantation operation is reduced. In addition, the multi-step portion and the front end portion have a shape similar to the lower end portion of the jig in order to increase the area of the lower end portion of the jig contacting the bone, thereby increasing the initial fixing force.

在上文所述之習知技術中，執行數個鑽孔過程之效應可藉由使用多階鑽頭僅經由單一鑽孔過程而獲得。然而，並未考慮歸因於切割過程期間所產生之高溫熱而引起的圍繞經鑽孔齒槽骨的骨壞死(osteonecrosis)以及容易地排出碎骨之能力，因而降低了整體的切割效率。In the prior art described above, the effect of performing several drilling processes can be obtained by using a multi-stage drill only through a single drilling process. However, the osteonecrosis around the perforated alveolar bone due to the high temperature heat generated during the cutting process and the ability to easily discharge the broken bone are not considered, thereby reducing the overall cutting efficiency.

【引用參考】[Reference reference]

【專利文獻】[Patent Literature]

1.美國專利公開案第US2006/0210949號1. U.S. Patent Publication No. US2006/0210949

2.韓國專利第893287號2. Korean Patent No. 893287

本發明提供最小化鑽孔過程期間所產生之熱且最大化排出碎骨之能力以提高切割效率的牙鑽、鑽頭組以及鑽 齒槽骨之方法。The present invention provides a dental drill, a drill bit, and a drill that minimizes the heat generated during the drilling process and maximizes the ability to discharge the broken bone to improve cutting efficiency. The method of alveolar bone.

根據本發明之一態樣，提供一種牙鑽，包含軸桿部分以及沿著單一中心軸線同軸安置之多個切割部分，其中所述軸桿部分具有用於與牙科旋轉裝置耦接之結構，其中所述多個切割部分包含第一切割部分以及第二切割部分，所述第二切割部分安置於所述第一切割部分與所述軸桿部分之間且具有大於所述第一切割部分的直徑，其中所述第一切割部分包含第一切割主體、第一槽紋溝槽、第一切割刀片以及第一前端部分，其中所述第一切割主體包含第一導引部分，所述第一導引部分在平行於所述中心軸線之方向上延伸且在植入過程期間在用於將所述牙鑽***至齒槽骨之所要位置中的方向上導引所述牙鑽，所述第一槽紋溝槽是藉由自所述第一切割主體之外表面向內挖掘而形成以便具有螺旋形狀且導引鑽孔過程期間所產生的碎骨，所述第一切割刀片形成於所述第一導引部分與所述第一槽紋溝槽之間的邊界上且粉碎所述齒槽骨，且所述第一前端部分安置於所述第一切割主體的末端部分上，其中所述第二切割部分包含第二切割主體、第二槽紋溝槽、第二切割刀片以及第二前端部分，其中所述第二切割主體包含第二導引部分，所述第二導引部分在平行於所述中心軸線之所述方向上延伸且在所述植入過程期間在用於將所述牙鑽***至所述齒槽骨之所要位置中的方向上導引所述牙鑽，所述第二槽紋溝槽是藉由自所述第二導引部分向內挖掘而形成以便具有螺旋形狀，且沿著所述中心軸線延伸且導引所述鑽孔 過程期間所產生的所述碎骨，所述第二切割刀片形成於所述第二導引部分與所述第二槽紋溝槽之間的邊界上且粉碎所述齒槽骨，且所述第二前端部分安置於所述第二切割主體的末端部分上，且其中，在沿著垂直於所述中心軸線之假想線檢視所述第二切割部分時，若所述第二切割主體之橫截面的面積為C2且所述第二槽紋溝槽中之每一者之橫截面的面積為F2，則1.2<F2/C2<1.8。According to one aspect of the invention, a dental drill is provided comprising a shaft portion and a plurality of cutting portions disposed coaxially along a single central axis, wherein the shaft portion has a structure for coupling with a dental rotating device, wherein The plurality of cutting portions include a first cutting portion and a second cutting portion, the second cutting portion being disposed between the first cutting portion and the shaft portion and having a diameter larger than the first cutting portion The first cutting portion includes a first cutting body, a first fluted groove, a first cutting blade, and a first front end portion, wherein the first cutting body includes a first guiding portion, the first guiding portion The lead portion extends in a direction parallel to the central axis and guides the dental drill in a direction for inserting the dental drill into a desired position of the alveolar bone during the implantation process, the first The corrugated groove is formed by digging inward from an outer surface of the first cutting body so as to have a spiral shape and guide the broken bone generated during the drilling process, the first cutting blade being formed in the a boundary between a guiding portion and the first fluted groove and pulverizing the alveolar bone, and the first front end portion is disposed on an end portion of the first cutting body, wherein the The second cutting portion includes a second cutting body, a second fluted groove, a second cutting blade, and a second front end portion, wherein the second cutting body includes a second guiding portion, the second guiding portion being parallel to Extending in the direction of the central axis and guiding the dental drill in a direction for inserting the dental drill into a desired position of the alveolar bone during the implantation process, the a two-fluted groove is formed by digging inward from the second guiding portion so as to have a spiral shape, and extending along the central axis and guiding the hole The broken bone generated during the process, the second cutting blade is formed on a boundary between the second guiding portion and the second fluted groove and pulverizes the alveolar bone, and a second front end portion is disposed on an end portion of the second cutting body, and wherein, when the second cutting portion is viewed along an imaginary line perpendicular to the central axis, if the second cutting body is transverse The area of the cross section is C2 and the area of the cross section of each of the second fluted grooves is F2, then 1.2 < F2 / C2 < 1.8.

根據本發明之另一態樣，提供一種牙鑽，包含軸桿部分以及沿著單一中心軸線同軸安置之多個切割部分，其中所述軸桿部分具有用於與牙科旋轉裝置耦接之結構，其中所述多個切割部分包含第一切割部分以及第二切割部分，所述第二切割部分安置於所述第一切割部分與所述軸桿部分之間且具有大於所述第一切割部分的直徑，其中所述第一切割部分包含第一切割主體、第一槽紋溝槽、第一切割刀片以及第一前端部分，其中所述第一切割主體包含第一導引部分，所述第一導引部分在平行於所述中心軸線之方向上延伸且在植入過程期間在用於將所述牙鑽***至齒槽骨之所要位置中的方向上導引所述牙鑽，所述第一槽紋溝槽是藉由自所述第一切割主體之外表面向內挖掘而形成以便具有螺旋形狀、沿著所述中心軸線延伸且導引鑽孔過程期間所產生的碎骨，所述第一切割刀片形成於所述第一導引部分與所述第一槽紋溝槽之間的邊界上且粉碎所述齒槽骨，且所述第一前端部分安置於所述第一切割主體的末端部分上，其中所述第二切割部分包含第二切割主體、第二 槽紋溝槽、第二切割刀片以及第二前端部分，其中所述第二切割主體包含第二導引部分，所述第二導引部分在平行於所述中心軸線之所述方向上延伸且在所述植入過程期間在用於將所述牙鑽***至所述齒槽骨之所要位置中的方向上導引所述牙鑽，所述第二槽紋溝槽是藉由自所述第二導引部分向內挖掘而形成以便具有螺旋形狀，且沿著所述中心軸線延伸且導引所述鑽孔過程期間所產生的所述碎骨，所述第二切割刀片形成於所述第二導引部分與所述第二槽紋溝槽之間的邊界上且粉碎所述齒槽骨，且所述第二前端部分安置於所述第二切割主體的末端部分上，且其中，在沿著所述中心軸線所量測的所述第一導引部分之長度為L1時，0.5mm<L1<1.5mm，且在所述第二切割刀片與所述中心軸線之間的切割角為Θ時，20°<Θ<35°。In accordance with another aspect of the present invention, a dental drill is provided comprising a shaft portion and a plurality of cutting portions disposed coaxially along a single central axis, wherein the shaft portion has a structure for coupling with a dental rotating device, Wherein the plurality of cutting portions include a first cutting portion and a second cutting portion, the second cutting portion being disposed between the first cutting portion and the shaft portion and having a larger than the first cutting portion a diameter, wherein the first cutting portion includes a first cutting body, a first fluted groove, a first cutting blade, and a first front end portion, wherein the first cutting body includes a first guiding portion, the first The guiding portion extends in a direction parallel to the central axis and guides the dental drill in a direction for inserting the dental drill into a desired position of the alveolar bone during the implantation process, the a fluted groove formed by digging inward from an outer surface of the first cutting body so as to have a spiral shape, extending along the central axis and guiding the broken bone generated during the drilling process. a first cutting blade is formed on a boundary between the first guiding portion and the first fluted groove and pulverizes the alveolar bone, and the first front end portion is disposed on the first cutting body On the end portion, wherein the second cutting portion comprises a second cutting body, a second a fluted groove, a second cutting blade, and a second front end portion, wherein the second cutting body includes a second guiding portion that extends in the direction parallel to the central axis and Guiding the dental drill in a direction for inserting the dental drill into a desired position of the alveolar bone during the implantation process, the second fluted groove being by a second guiding portion is formed inwardly to have a spiral shape, and extends along the central axis and guides the broken bone generated during the drilling process, the second cutting blade being formed on the a boundary between the second guiding portion and the second fluted groove and pulverizing the alveolar bone, and the second front end portion is disposed on an end portion of the second cutting body, and wherein When the length of the first guiding portion measured along the central axis is L1, 0.5 mm < L1 < 1.5 mm, and a cutting angle between the second cutting blade and the central axis When it is Θ, 20 ° < Θ < 35 °.

第一槽紋溝槽之數目以及第二槽紋溝槽之數目可各為2，且所述第一槽紋溝槽與所述第二槽紋溝槽可連續地彼此連接。The number of first fluted grooves and the number of second fluted grooves may each be two, and the first fluted grooves and the second fluted grooves may be continuously connected to each other.

當沿著垂直於所述中心軸線之假想線檢視所述第一切割部分時，若所述第一切割主體之橫截面的面積為C1且所述第一槽紋溝槽之橫截面的面積為F1，則1.2<F1/C1<1.8。When the first cutting portion is viewed along an imaginary line perpendicular to the central axis, if the cross-sectional area of the first cutting body is C1 and the cross-sectional area of the first fluted groove is For F1, 1.2<F1/C1<1.8.

當沿著垂直於所述中心軸線之假想線檢視所述第二切割部分時，若所述第二切割主體之橫截面的面積為C2且所述第二槽紋溝槽之橫截面的面積為F2，則1.2<F2/C2<1.8。When the second cutting portion is viewed along an imaginary line perpendicular to the central axis, if the area of the cross section of the second cutting body is C2 and the area of the cross section of the second groove groove is F2, then 1.2<F2/C2<1.8.

當沿著所述中心軸線所量測的所述第一導引部分之長度為L1時，0.5mm<L1<1.5mm。When the length of the first guiding portion measured along the central axis is L1, 0.5 mm < L1 < 1.5 mm.

當所述第二切割刀片與所述中心軸線之間的切割角為Θ時，20°<Θ<35°。When the cutting angle between the second cutting blade and the central axis is Θ, 20° < Θ < 35°.

所述牙鑽可更包含用於與輔助裝置連接之連接結構，所述輔助裝置用於調整所述牙鑽的切割深度。The dental drill may further comprise a connection structure for connection with an auxiliary device for adjusting a cutting depth of the dental drill.

所述連接結構可為安置於所述軸桿部分與所述第二切割部分之間且藉由在圓周方向上向內挖掘而獲得的連接溝槽。The connecting structure may be a connecting groove disposed between the shaft portion and the second cutting portion and obtained by digging inward in the circumferential direction.

所述牙鑽可更包含用於調整所述牙鑽之切割深度的止動器。The dental drill may further comprise a stop for adjusting the cutting depth of the dental drill.

所述止動器可相對於所述第二切割部分在圓周方向上向外突出。The stopper may protrude outward in a circumferential direction with respect to the second cutting portion.

根據本發明之另一態樣，提供一種包含所述牙鑽之鑽頭組。According to another aspect of the present invention, a drill bit set comprising the dental drill is provided.

根據本發明之另一態樣，提供一種用所述牙鑽來對齒槽骨鑽孔以用於在所述齒槽骨中形成孔的方法。In accordance with another aspect of the present invention, a method of drilling a alveolar bone with the dental drill for forming a hole in the alveolar bone is provided.

藉由參看所附圖式詳細描述本發明之例示性實施例，本發明之以上以及其他特徵以及優點將變得更加顯而易見。The above as well as other features and advantages of the present invention will become more apparent from the Detailed Description.

下文中，將藉由參看附圖解釋本發明之例示性實施例來詳細描述牙鑽。Hereinafter, a dental drill will be described in detail by explaining an exemplary embodiment of the present invention with reference to the attached drawings.

根據本發明之實施例的牙鑽10包含軸桿部分20以及 多個切割部分30。A dental drill 10 according to an embodiment of the present invention includes a shaft portion 20 and A plurality of cutting portions 30.

軸桿部分20包含與夾盤(未圖示)耦接之夾盤耦接部分21以及軸桿22。夾盤耦接部分21包含沿著與夾盤耦接之夾盤耦接表面之圓周方向所形成的夾盤溝槽211。夾盤耦接表面以及夾盤溝槽211固定於夾盤中。The shaft portion 20 includes a chuck coupling portion 21 coupled to a chuck (not shown) and a shaft 22. The chuck coupling portion 21 includes a chuck groove 211 formed along a circumferential direction of the chuck coupling surface coupled to the chuck. The chuck coupling surface and the chuck groove 211 are fixed in the chuck.

切割部分30包含各自包含第一切割部分31以及第二切割部分32之多個組件。The cutting portion 30 includes a plurality of components each including a first cutting portion 31 and a second cutting portion 32.

第一切割部分31包含第一切割主體311、第一槽紋溝槽312、第一切割刀片313以及第一前端部分314。The first cutting portion 31 includes a first cutting body 311, a first fluted groove 312, a first cutting blade 313, and a first front end portion 314.

第一切割主體311在平行於中心軸線C之方向上延伸，且包含第一導引部分311a，第一導引部分311a在植入過程期間在用於將牙鑽***至齒槽骨之所要位置中的方向上導引牙鑽。第一切割主體311可由金屬材料形成。The first cutting body 311 extends in a direction parallel to the central axis C and includes a first guiding portion 311a that is inserted at a desired position for inserting the dental drill into the alveolar bone during the implantation process Guide the drill in the direction of the middle. The first cutting body 311 may be formed of a metal material.

當沿著中心軸線C所量測的第一導引部分311a之長度為L1時，0.5mm<L1<1.5mm。當第一導引部分311a之長度落入此範圍內時，用於排出骨屑之整個長度可增大，藉此提高切割效率。When the length of the first guiding portion 311a measured along the central axis C is L1, 0.5 mm < L1 < 1.5 mm. When the length of the first guiding portion 311a falls within this range, the entire length for discharging the bone chips can be increased, thereby improving the cutting efficiency.

第一槽紋溝槽312藉由自第一切割主體311之外表面向內挖掘而形成，以便具有螺旋形狀且沿著中心軸線C朝向軸桿部分20導引鑽孔過程期間所產生的碎骨。當沿著垂直於中心軸線C之假想線檢視第一切割部分31時，若第一切割主體311之橫截面的面積為C1且第一槽紋溝槽312中之每一者之橫截面的面積為F1，則1.2<F1/C1<1.8。當第一槽紋溝槽312中之每一者之橫截面的面積落入預定 範圍內時，第一槽紋溝槽312中之每一者之橫截面的面積與習知鑽頭相比可增大，且因此，所排出碎骨之總量可提高，藉此提高切割效率。The first fluted groove 312 is formed by digging inward from the outer surface of the first cutting body 311 so as to have a spiral shape and guide the broken bone generated during the drilling process toward the shaft portion 20 along the central axis C. When the first cutting portion 31 is viewed along an imaginary line perpendicular to the central axis C, if the area of the cross section of the first cutting body 311 is C1 and the area of the cross section of each of the first groove grooves 312 For F1, 1.2<F1/C1<1.8. When the area of the cross section of each of the first fluted grooves 312 falls within the predetermined In the range, the area of the cross section of each of the first fluted grooves 312 can be increased as compared with the conventional drill bit, and therefore, the total amount of the discharged broken bone can be increased, thereby improving the cutting efficiency.

第一切割刀片313形成於第一導引部分311a與第一槽紋溝槽312之間的邊界上且粉碎齒槽骨。當第一切割刀片313與中心軸線C之間的切割角為Θ時，20°<Θ<35°。若切割角等於或小於20°，則用於切割齒槽骨之第一切割刀片313的能力不夠且用於經由第一槽紋溝槽312排出碎骨之第一切割刀片313的能力降低，因而降低總的切割效率。The first cutting blade 313 is formed on a boundary between the first guiding portion 311a and the first fluted groove 312 and pulverizes the alveolar bone. When the cutting angle between the first cutting blade 313 and the center axis C is Θ, 20° < Θ < 35°. If the cutting angle is equal to or less than 20°, the ability to cut the first cutting blade 313 of the alveolar bone is insufficient and the ability to discharge the first cutting blade 313 of the broken bone via the first fluted groove 312 is reduced, thus Reduce overall cutting efficiency.

第一前端部分314形成於第一切割主體311之末端部分上且大致具有錐形形狀。槽紋溝槽以及切割刀片亦可形成於第一前端部分314上。The first front end portion 314 is formed on an end portion of the first cutting body 311 and has a substantially conical shape. A fluted groove and a cutting blade may also be formed on the first front end portion 314.

第二切割部分32可包含第二切割主體321、第二槽紋溝槽322、第二切割刀片323以及第二前端部分324。第二切割部分32可安置於第一切割部分31與軸桿部分20之間。另外，第二切割部分32之直徑(或外圓周)可大於第一切割部分31之直徑(或外圓周)。The second cutting portion 32 may include a second cutting body 321, a second fluted groove 322, a second cutting blade 323, and a second front end portion 324. The second cutting portion 32 may be disposed between the first cutting portion 31 and the shaft portion 20. In addition, the diameter (or outer circumference) of the second cutting portion 32 may be larger than the diameter (or outer circumference) of the first cutting portion 31.

第二切割主體321在平行於中心軸線C之方向上延伸，且包含第二導引部分321a，第二導引部分321a在植入過程期間在用於將牙鑽***至齒槽骨之所要位置中的方向上導引牙鑽。第二切割主體321可由金屬材料形成。The second cutting body 321 extends in a direction parallel to the central axis C and includes a second guiding portion 321a that is inserted at a desired position for inserting the dental drill into the alveolar bone during the implantation process Guide the drill in the direction of the middle. The second cutting body 321 may be formed of a metal material.

第二槽紋溝槽322藉由自第二切割主體321之外表面挖入而形成，以便具有螺旋形狀且沿著中心軸線C朝向軸 桿部分20導引鑽孔過程期間所產生的碎骨。第二槽紋溝槽322可連續地連接至第一槽紋溝槽312。在此狀況下，第二槽紋溝槽322之數目可與第一槽紋溝槽312之數目相同。根據本實施例，使用兩個第二槽紋溝槽322。The second fluted groove 322 is formed by digging in from the outer surface of the second cutting body 321 so as to have a spiral shape and face the axis along the central axis C The stem portion 20 guides the broken bone produced during the drilling process. The second fluted trench 322 can be continuously connected to the first fluted trench 312. In this case, the number of second fluted grooves 322 may be the same as the number of first fluted grooves 312. According to this embodiment, two second fluted grooves 322 are used.

如圖5所示，關於第二槽紋溝槽322，當沿著垂直於中心軸線C之假想線檢視第二切割部分32時，若第二切割主體321之橫截面的面積為C2且第二槽紋溝槽322中之每一者之橫截面的面積為F2(根據本實施例，使用了兩個槽紋溝槽且此兩個槽紋溝槽的整個面積為F2)，則1.2<F2/C2<1.8。當第二槽紋溝槽322之橫截面的面積落入預定範圍內時，第二槽紋溝槽322中之每一者之橫截面的面積與習知鑽頭相比可提高，且因此，所排出碎骨之總量可提高，藉此提高切割效率。As shown in FIG. 5, with respect to the second fluted groove 322, when the second cutting portion 32 is viewed along an imaginary line perpendicular to the central axis C, if the area of the cross section of the second cutting body 321 is C2 and the second The area of the cross section of each of the fluted grooves 322 is F2 (according to the present embodiment, two fluted grooves are used and the entire area of the two fluted grooves is F2), then 1.2 < F2 /C2<1.8. When the area of the cross section of the second fluted groove 322 falls within a predetermined range, the area of the cross section of each of the second fluted grooves 322 can be improved as compared with the conventional drill bit, and thus, The total amount of exfoliated bone can be increased, thereby increasing the cutting efficiency.

第二切割刀片323形成於第二導引部分321a與第二槽紋溝槽322之間的邊界上且粉碎齒槽骨。當第二切割刀片323與中心軸線C之間的切割角為Θ時，20°<Θ<35°。若切割角等於或小於20°，則用於切割齒槽骨之第二切割刀片323的能力不夠且用於經由第一槽紋溝槽312排出碎骨之第二切割刀片323的能力降低，因而降低總的切割效率。The second cutting blade 323 is formed on the boundary between the second guiding portion 321a and the second fluted groove 322 and pulverizes the alveolar bone. When the cutting angle between the second cutting blade 323 and the center axis C is Θ, 20° < Θ < 35°. If the cutting angle is equal to or less than 20°, the ability to cut the second cutting blade 323 of the alveolar bone is insufficient and the ability to discharge the second cutting blade 323 of the broken bone via the first fluted groove 312 is reduced, thereby Reduce overall cutting efficiency.

第二前端部分324形成於第二切割主體321之末端部分上且大致具有錐形形狀。第二前端部分324之一末端可連接至第一切割部分31之末端部分，且可整體具有階梯狀形狀。The second front end portion 324 is formed on an end portion of the second cutting body 321 and has a substantially tapered shape. One end of the second front end portion 324 may be coupled to an end portion of the first cutting portion 31, and may have a stepped shape as a whole.

根據本發明之實施例，齒槽骨是如下所述用牙鑽10鑽孔。According to an embodiment of the invention, the alveolar bone is drilled with a dental drill 10 as described below.

如圖6(a)所示，牙鑽10定位於經受鑽孔之齒槽骨100上方。接著，牙鑽10朝向齒槽骨100逐漸降低，同時圍繞中心軸線C旋轉。在此狀況下，如圖6(b)所示，當第一前端部分314與齒槽骨100之上表面接觸時，待鑽孔之位置得以確定。接著，在第一切割部分31***之同時，具有預定直徑之孔形成於齒槽骨100中。如圖6(c)所示，在牙鑽10進一步降低之同時，第二切割部分32***至齒槽骨100中。在此狀況下，由於第二切割部分32具有大於第一切割部分31之外圓周，因此具有大於第一切割部分31之直徑的孔可形成於齒槽骨100中。As shown in Figure 6(a), the dental drill 10 is positioned above the alveolar bone 100 that is subjected to drilling. Next, the dental drill 10 is gradually lowered toward the alveolar bone 100 while rotating about the central axis C. In this case, as shown in Fig. 6(b), when the first front end portion 314 comes into contact with the upper surface of the alveolar bone 100, the position to be drilled is determined. Next, while the first cutting portion 31 is being inserted, a hole having a predetermined diameter is formed in the alveolar bone 100. As shown in FIG. 6(c), the second cutting portion 32 is inserted into the alveolar bone 100 while the dental drill 10 is further lowered. In this case, since the second cutting portion 32 has a larger circumference than the first cutting portion 31, a hole having a larger diameter than the first cutting portion 31 may be formed in the alveolar bone 100.

根據本實施例，牙鑽10可提高碎骨之排出效率，此是因為槽紋溝槽之面積大於習知牙鑽中的面積，藉此提高總的切割效率且防止高溫熱在切割過程期間產生。According to the present embodiment, the dental drill 10 can improve the discharge efficiency of the broken bone because the area of the groove groove is larger than that in the conventional drill, thereby improving the overall cutting efficiency and preventing high temperature heat during the cutting process. produce.

另外，由於切割刀片與中心軸線C之間的切割角大於在習知牙鑽之狀況下的切割角，因此大量碎骨可在切割過程期間產生，藉此提高總的切割效率。在此狀況下，排出碎骨之能力提高，且因此，大量碎骨可經由槽紋溝槽向外排出。In addition, since the cutting angle between the cutting blade and the central axis C is larger than the cutting angle in the case of the conventional dental drill, a large amount of broken bone can be generated during the cutting process, thereby improving the overall cutting efficiency. In this case, the ability to discharge the broken bone is improved, and therefore, a large amount of broken bone can be discharged outward through the groove groove.

此外，由於第一導引部分311a之長度落入預定範圍內，因此形成於第一導引部分311a之邊緣上的切割刀片之長度可提高，藉此提高總的切割效率且提高導引能力。Further, since the length of the first guiding portion 311a falls within a predetermined range, the length of the cutting blade formed on the edge of the first guiding portion 311a can be increased, thereby improving the overall cutting efficiency and improving the guiding ability.

根據本實施例，如圖7所示，牙鑽10可包含用於與 輔助裝置60連接之連接結構，輔助裝置60用於調整牙鑽10之切割深度。舉例而言，輔助裝置60大致具有圓柱形形狀。另外，輔助裝置60包含：多個狹槽62，其自輔助裝置60之一末端朝向另一末端延伸且在圓周方向上彼此間隔開；以及突起61，其在輔助裝置60之一末端處向內突出。According to this embodiment, as shown in FIG. 7, the dental drill 10 can be included for use with The auxiliary device 60 is connected to the connection structure, and the auxiliary device 60 is used to adjust the cutting depth of the dental drill 10. For example, the auxiliary device 60 has a generally cylindrical shape. In addition, the auxiliary device 60 includes a plurality of slots 62 extending from one end of the auxiliary device 60 toward the other end and spaced apart from each other in the circumferential direction, and a protrusion 61 that is inward at one end of the auxiliary device 60 protruding.

用於與輔助裝置60連接之連接結構可為安置於軸桿部分20與第二切割部分32之間且藉由在圓周方向上向內挖掘而獲得的連接溝槽40。同樣，由於牙鑽10與輔助裝置60耦接，因此在牙鑽10***至齒槽骨之所要深度之後，牙鑽10由輔助裝置60絆住。因此，難以再將牙鑽10***至齒槽骨中，且因此，具有精確深度之孔可形成於齒槽骨中。The connection structure for connection with the auxiliary device 60 may be a connection groove 40 which is disposed between the shaft portion 20 and the second cutting portion 32 and which is obtained by digging inward in the circumferential direction. Also, since the dental drill 10 is coupled to the auxiliary device 60, the dental drill 10 is gripped by the auxiliary device 60 after the dental drill 10 is inserted to the desired depth of the alveolar bone. Therefore, it is difficult to insert the dental drill 10 into the alveolar bone, and therefore, a hole having a precise depth can be formed in the alveolar bone.

單獨的止動器50可包含於牙鑽10中。止動器50安置於軸桿部分20與第二切割部分32之間，且相對於第二切割部分32在圓周方向上向外突出。同樣，由於使用止動器50，因此牙鑽10由止動器50絆住以防止牙鑽10以預定深度或更大深度***至齒槽骨中，且因此，牙鑽10可***至所要深度。A separate stop 50 can be included in the dental drill 10. The stopper 50 is disposed between the shaft portion 20 and the second cutting portion 32, and protrudes outward in the circumferential direction with respect to the second cutting portion 32. Also, since the stopper 50 is used, the dental drill 10 is gripped by the stopper 50 to prevent the dental drill 10 from being inserted into the alveolar bone at a predetermined depth or more, and therefore, the dental drill 10 can be inserted to the desired depth. .

因此，迄今為止，已詳細描述了根據本發明之上文所述實施例的牙鑽10，但本發明不限於此。舉例而言，切割部分30可包含兩階切割部分或多階切割部分。Thus, the dental drill 10 according to the above-described embodiments of the present invention has been described in detail so far, but the present invention is not limited thereto. For example, the cutting portion 30 can include a two-step cutting portion or a multi-step cutting portion.

在根據本發明之牙鑽中，由於槽紋溝槽之橫截面的面積增大，因此排出碎骨之能力提高，藉此提高切割效率。In the dental drill according to the present invention, since the area of the cross section of the groove groove is increased, the ability to discharge the broken bone is improved, thereby improving the cutting efficiency.

在根據本發明之牙鑽中，由於切割刀片之切割角落入預定範圍內，因此排出碎骨之能力提高，藉此提高總的切割效率。In the dental drill according to the present invention, since the cutting corner of the cutting blade is within a predetermined range, the ability to discharge the broken bone is improved, thereby improving the overall cutting efficiency.

儘管已參考本發明之例示性實施例特定地展示且描述了本發明，但一般熟習此項技術者將理解，在不脫離如由隨附申請專利範圍界定的本發明之精神以及範疇的情況下，可對本發明進行形式以及細節上的各種改變。Although the present invention has been particularly shown and described with reference to the exemplary embodiments of the present invention, it will be understood by those skilled in the art Various changes in form and detail may be made to the invention.

10‧‧‧牙鑽10‧‧‧Drill

20‧‧‧軸桿部分20‧‧‧ shaft part

21‧‧‧夾盤耦接部分21‧‧‧Chuck coupling part

22‧‧‧軸桿22‧‧‧ shaft

30‧‧‧切割部分30‧‧‧cutting section

31‧‧‧第一切割部分31‧‧‧First cut section

32‧‧‧第二切割部分32‧‧‧Second cut section

40‧‧‧連接溝槽40‧‧‧ Connection groove

50‧‧‧止動器50‧‧‧stops

60‧‧‧輔助裝置60‧‧‧Auxiliary devices

61‧‧‧突起61‧‧‧ Protrusion

62‧‧‧狹槽62‧‧‧ slot

100‧‧‧齒槽骨100‧‧‧ alveolar bone

211‧‧‧夾盤溝槽211‧‧‧Chuck groove

311‧‧‧第一切割主體311‧‧‧The first cutting body

311a‧‧‧第一導引部分311a‧‧‧First Guide

312‧‧‧第一槽紋溝槽312‧‧‧First groove groove

313‧‧‧第一切割刀片313‧‧‧First cutting blade

314‧‧‧第一前端部分314‧‧‧ first front end

321‧‧‧第二切割主體321‧‧‧Second cutting body

321a‧‧‧第二導引部分321a‧‧‧Second guide

322‧‧‧第二槽紋溝槽322‧‧‧Second groove groove

323‧‧‧第二切割刀片323‧‧‧Second cutting blade

324‧‧‧第二前端部分324‧‧‧ second front end

C‧‧‧中心軸線C‧‧‧ center axis

C2‧‧‧第二切割主體之橫截面的面積C2‧‧‧ Area of the cross section of the second cutting body

F2‧‧‧第二槽紋溝槽中之每一者之橫截面的面積The area of the cross section of each of the F2‧‧‧ second groove grooves

L1‧‧‧第一導引部分之長度L1‧‧‧ Length of the first guiding part

Θ‧‧‧第二切割刀片與中心軸線之間的切割角Θ‧‧‧Cutting angle between the second cutting blade and the central axis

圖1為根據本發明之實施例之牙鑽的透視圖。1 is a perspective view of a dental drill in accordance with an embodiment of the present invention.

圖2為圖1之牙鑽的平面圖。Figure 2 is a plan view of the dental drill of Figure 1.

圖3為圖1之牙鑽的側視圖。Figure 3 is a side elevational view of the dental drill of Figure 1.

圖4為圖1之牙鑽的前視圖。4 is a front elevational view of the dental drill of FIG. 1.

圖5為沿著圖1之線V-V所截取之牙鑽的橫截面圖。Figure 5 is a cross-sectional view of the dental drill taken along line V-V of Figure 1.

圖6(a)至圖6(c)展示根據本發明之實施例的齒槽骨用圖1所示之牙鑽鑽孔的狀況。6(a) to 6(c) show the condition of the alveolar bone drilled with the dental drill shown in Fig. 1 according to an embodiment of the present invention.

圖7展示根據本發明之實施例的用於調整深度之輔助裝置與圖1所示之牙鑽耦接的狀況。Figure 7 shows a state in which an auxiliary device for adjusting depth is coupled to the dental drill shown in Figure 1 in accordance with an embodiment of the present invention.

10‧‧‧牙鑽10‧‧‧Drill

20‧‧‧軸桿部分20‧‧‧ shaft part

21‧‧‧夾盤耦接部分21‧‧‧Chuck coupling part

22‧‧‧軸桿22‧‧‧ shaft

30‧‧‧切割部分30‧‧‧cutting section

31‧‧‧第一切割部分31‧‧‧First cut section

32‧‧‧第二切割部分32‧‧‧Second cut section

40‧‧‧連接溝槽40‧‧‧ Connection groove

50‧‧‧止動器50‧‧‧stops

211‧‧‧夾盤溝槽211‧‧‧Chuck groove

311‧‧‧第一切割主體311‧‧‧The first cutting body

311a‧‧‧第一導引部分311a‧‧‧First Guide

312‧‧‧第一槽紋溝槽312‧‧‧First groove groove

313‧‧‧第一切割刀片313‧‧‧First cutting blade

314‧‧‧第一前端部分314‧‧‧ first front end

321‧‧‧第二切割主體321‧‧‧Second cutting body

321a‧‧‧第二導引部分321a‧‧‧Second guide

322‧‧‧第二槽紋溝槽322‧‧‧Second groove groove

323‧‧‧第二切割刀片323‧‧‧Second cutting blade

324‧‧‧第二前端部分324‧‧‧ second front end

Claims (13)

一種牙鑽，包括軸桿部分以及沿著單一中心軸線同軸安置之多個切割部分，其中所述軸桿部分具有用於與牙科旋轉裝置耦接之結構，其中所述多個切割部分包括第一切割部分以及第二切割部分，所述第二切割部分安置於所述第一切割部分與所述軸桿部分之間且具有大於所述第一切割部分的直徑，其中所述第一切割部分包括第一切割主體、第一槽紋溝槽、第一切割刀片以及第一前端部分，其中所述第一切割主體包括第一導引部分，所述第一導引部分在平行於所述中心軸線之方向上延伸且在植入過程期間在用於將所述牙鑽***至齒槽骨之所要位置中的方向上導引所述牙鑽，所述第一槽紋溝槽是藉由自所述第一切割主體之外表面向內挖掘而形成以便具有螺旋形狀且導引鑽孔過程期間所產生的碎骨，所述第一切割刀片形成於所述第一導引部分與所述第一槽紋溝槽之間的邊界上且粉碎所述齒槽骨，且所述第一前端部分安置於所述第一切割主體的末端部分上，其中所述第二切割部分包括第二切割主體、第二槽紋溝槽、第二切割刀片以及第二前端部分，其中所述第二切割主體包括第二導引部分，所述第二導引部分在平行於所述中心軸線之所述方向上延伸且在所述植入過程期間在用於將所述牙鑽***至所述齒槽骨之所要位置中的方向上導引所述牙鑽，所述第二槽紋溝槽是藉由自所述第二導引部 分向內挖掘而形成以便具有螺旋形狀，且沿著所述中心軸線延伸且導引所述鑽孔過程期間所產生的所述碎骨，所述第二切割刀片形成於所述第二導引部分與所述第二槽紋溝槽之間的邊界上且粉碎所述齒槽骨，且所述第二前端部分安置於所述第二切割主體的末端部分上，且其中，在沿著垂直於所述中心軸線之假想線檢視所述第二切割部分時，若所述第二切割主體之橫截面的面積為C2且所述第二槽紋溝槽中之每一者之橫截面的面積為F2，則1.2<F2/C2<1.8。 A dental drill comprising a shaft portion and a plurality of cutting portions coaxially disposed along a single central axis, wherein the shaft portion has a structure for coupling with a dental rotating device, wherein the plurality of cutting portions include the first a cutting portion and a second cutting portion disposed between the first cutting portion and the shaft portion and having a diameter larger than the first cutting portion, wherein the first cutting portion includes a first cutting body, a first fluted groove, a first cutting blade, and a first front end portion, wherein the first cutting body includes a first guiding portion, the first guiding portion being parallel to the central axis Extending in the direction and guiding the dental drill in a direction for inserting the dental drill into a desired position of the alveolar bone during the implantation process, the first fluted groove is by itself The outer surface of the first cutting body is excavated inwardly to have a spiral shape and guides the broken bone generated during the drilling process, the first cutting blade being formed in the first guiding portion and the first groove And smashing the alveolar bone at a boundary between the grooves, and the first front end portion is disposed on an end portion of the first cutting body, wherein the second cutting portion includes a second cutting body, a second a fluted groove, a second cutting blade, and a second front end portion, wherein the second cutting body includes a second guiding portion that extends in the direction parallel to the central axis and Guiding the dental drill in a direction for inserting the dental drill into a desired position of the alveolar bone during the implantation process, the second fluted groove being by Second guiding portion Dividing inwardly to form a spiral shape, and extending along the central axis and guiding the broken bone generated during the drilling process, the second cutting blade being formed on the second guide And smashing the alveolar bone at a boundary between the portion and the second fluted groove, and the second front end portion is disposed on an end portion of the second cutting body, and wherein, along the vertical When the second cutting portion is viewed on the imaginary line of the central axis, if the cross-sectional area of the second cutting body is C2 and the cross-sectional area of each of the second fluted grooves For F2, 1.2<F2/C2<1.8. 一種牙鑽，包括軸桿部分以及沿著單一中心軸線同軸安置之多個切割部分，其中所述軸桿部分具有用於與牙科旋轉裝置耦接之結構，其中所述多個切割部分包括第一切割部分以及第二切割部分，所述第二切割部分安置於所述第一切割部分與所述軸桿部分之間且具有大於所述第一切割部分的直徑，其中所述第一切割部分包括第一切割主體、第一槽紋溝槽、第一切割刀片以及第一前端部分，其中所述第一切割主體包括第一導引部分，所述第一導引部分在平行於所述中心軸線之方向上延伸且在植入過程期間在用於將所述牙鑽***至齒槽骨之所要位置中的方向上導引所述牙鑽，所述第一槽紋溝槽是藉由自所述第一切割主體之外表面向內挖掘而形成以便具有螺旋形狀，且沿著所述中心軸線延伸且導引鑽孔過程期間所產生的碎骨，所述第一切割刀片 形成於所述第一導引部分與所述第一槽紋溝槽之間的邊界上且粉碎所述齒槽骨，且所述第一前端部分安置於所述第一切割主體的末端部分上，其中所述第二切割部分包括第二切割主體、第二槽紋溝槽、第二切割刀片以及第二前端部分，其中所述第二切割主體包括第二導引部分，所述第二導引部分在平行於所述中心軸線之所述方向上延伸且在所述植入過程期間在用於將所述牙鑽***至所述齒槽骨之所要位置中的方向上導引所述牙鑽，所述第二槽紋溝槽是藉由自所述第二導引部分向內挖掘而形成以便具有螺旋形狀，且沿著所述中心軸線延伸且導引所述鑽孔過程期間所產生的所述碎骨，所述第二切割刀片形成於所述第二導引部分與所述第二槽紋溝槽之間的邊界上且粉碎所述齒槽骨，且所述第二前端部分安置於所述第二切割主體的末端部分上，且其中，在沿著所述中心軸線所量測的所述第一導引部分之長度為L1時，0.5mm<L1<1.5mm，且在所述第二切割刀片與所述中心軸線之間的切割角為Θ時，20°<Θ<35°。 A dental drill comprising a shaft portion and a plurality of cutting portions coaxially disposed along a single central axis, wherein the shaft portion has a structure for coupling with a dental rotating device, wherein the plurality of cutting portions include the first a cutting portion and a second cutting portion disposed between the first cutting portion and the shaft portion and having a diameter larger than the first cutting portion, wherein the first cutting portion includes a first cutting body, a first fluted groove, a first cutting blade, and a first front end portion, wherein the first cutting body includes a first guiding portion, the first guiding portion being parallel to the central axis Extending in the direction and guiding the dental drill in a direction for inserting the dental drill into a desired position of the alveolar bone during the implantation process, the first fluted groove is by itself The outer surface of the first cutting body is excavated inwardly to have a spiral shape, and extends along the central axis and guides the broken bone generated during the drilling process, the first cutting blade Formed on a boundary between the first guiding portion and the first fluted groove and pulverizing the alveolar bone, and the first front end portion is disposed on an end portion of the first cutting body Wherein the second cutting portion includes a second cutting body, a second fluted groove, a second cutting blade, and a second front end portion, wherein the second cutting body includes a second guiding portion, the second guiding portion a lead portion extending in the direction parallel to the central axis and guiding the tooth in a direction for inserting the dental drill into a desired position of the alveolar bone during the implantation process Drilling, the second fluted groove is formed by digging inward from the second guiding portion so as to have a spiral shape, and extending along the central axis and guiding the generation during the drilling process The broken bone, the second cutting blade is formed on a boundary between the second guiding portion and the second fluted groove and pulverizes the alveolar bone, and the second front end portion Placed on an end portion of the second cutting body, and wherein When the length of the first guiding portion measured by the central axis is L1, 0.5 mm < L1 < 1.5 mm, and a cutting angle between the second cutting blade and the central axis is Θ When, 20 ° < Θ < 35 °. 如申請專利範圍第1項或第2項所述之牙鑽，其中第一槽紋溝槽之數目以及第二槽紋溝槽之數目各為2，且所述第一槽紋溝槽與所述第二槽紋溝槽連續地彼此連接。 The dental drill of claim 1 or 2, wherein the number of the first fluted grooves and the number of the second fluted grooves are each 2, and the first fluted groove is The second fluted grooves are continuously connected to each other. 如申請專利範圍第2項所述之牙鑽，其中，在沿著垂直於所述中心軸線之假想線檢視所述第一切割部分時，若所述第一切割主體之橫截面的面積為C1且所述第一槽 紋溝槽之橫截面的面積為F1，則1.2<F1/C1<1.8。 The dental drill of claim 2, wherein when the first cutting portion is viewed along an imaginary line perpendicular to the central axis, if the cross-sectional area of the first cutting body is C1 And the first slot The area of the cross section of the groove is F1, then 1.2 < F1/C1 < 1.8. 如申請專利範圍第2項所述之牙鑽，其中，在沿著垂直於所述中心軸線之假想線檢視所述第二切割部分時，若所述第二切割主體之橫截面的面積為C2且所述第二槽紋溝槽之橫截面的面積為F2，則1.2<F2/C2<1.8。 The dental drill of claim 2, wherein when the second cutting portion is viewed along an imaginary line perpendicular to the central axis, if the cross-sectional area of the second cutting body is C2 And the area of the cross section of the second groove groove is F2, then 1.2<F2/C2<1.8. 如申請專利範圍第1項所述之牙鑽，其中，在沿著垂直於所述中心軸線之假想線檢視所述第一切割部分時，若所述第一切割主體之橫截面的面積為C1且所述第一槽紋溝槽之橫截面的面積為F1，則1.2<F1/C1<1.8。 The dental drill of claim 1, wherein when the first cutting portion is viewed along an imaginary line perpendicular to the central axis, if the cross-sectional area of the first cutting body is C1 And the area of the cross section of the first fluted groove is F1, then 1.2<F1/C1<1.8. 如申請專利範圍第1項所述之牙鑽，其中，在沿著所述中心軸線所量測的所述第一導引部分之長度為L1時，0.5mm<L1<1.5mm。 The dental drill according to claim 1, wherein 0.5 mm < L1 < 1.5 mm when the length of the first guiding portion measured along the central axis is L1. 如申請專利範圍第1項所述之牙鑽，其中，在所述第二切割刀片與所述中心軸線之間的切割角為Θ時，20°<Θ<35°。 The dental drill of claim 1, wherein when the cutting angle between the second cutting blade and the central axis is Θ, 20° < Θ < 35°. 如申請專利範圍第1項或第2項所述之牙鑽，更包括用於與輔助裝置連接之連接結構，所述輔助裝置用於調整所述牙鑽的切割深度。 A dental drill according to claim 1 or 2, further comprising a connection structure for connecting to the auxiliary device, the auxiliary device for adjusting a cutting depth of the dental drill. 如申請專利範圍第9項所述之牙鑽，其中所述連接結構為安置於所述軸桿部分與所述第二切割部分之間且藉由在圓周方向上向內挖掘而獲得的連接溝槽。 The dental drill of claim 9, wherein the connecting structure is a connecting groove disposed between the shaft portion and the second cutting portion and excavated inward in the circumferential direction. groove. 如申請專利範圍第1項或第2項所述之牙鑽，更包括用於調整所述牙鑽之切割深度的止動器。 A dental drill according to claim 1 or 2, further comprising a stopper for adjusting a cutting depth of the dental drill. 如申請專利範圍第11項所述之牙鑽，其中所述止 動器相對於所述第二切割部分在圓周方向上向外突出。 The dental drill of claim 11, wherein the The actuator protrudes outward in the circumferential direction with respect to the second cutting portion. 一種包括如申請專利範圍第1項或第2項所述之牙鑽之鑽頭組。 A drill bit set comprising a dental drill as described in claim 1 or 2.
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