JP2019216865A - Artificial tooth arrangement/adjustment bar - Google Patents

Artificial tooth arrangement/adjustment bar Download PDF

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JP2019216865A
JP2019216865A JP2018115090A JP2018115090A JP2019216865A JP 2019216865 A JP2019216865 A JP 2019216865A JP 2018115090 A JP2018115090 A JP 2018115090A JP 2018115090 A JP2018115090 A JP 2018115090A JP 2019216865 A JP2019216865 A JP 2019216865A
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denture
head
tip
arrangement
adjustment bar
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JP6462935B1 (en
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亜星 武藤
Asei Muto
亜星 武藤
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Wspt Japan Inc
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Wspt Japan Inc
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Abstract

To provide an artificial tooth arrangement/adjustment bar that, in single use, enables arrangement/adjustment processing on an artificial tooth, enables easy and vertical drilling of a maintenance hole for the artificial tooth, and inhibits clogging with cutting chips and, in addition, inhibits abrasive grains from falling and giving discomfort to a patient when a dentist uses the bar in the patient's oral cavity and is sanitarily excellent.MEANS FOR SOLVING THE PROBLEM: An artificial tooth arrangement/adjustment bar according to the present invention comprises a rod-like shaft part and a head part disposed on a tip of the shaft part. The head part includes: a head base part that has a shape whose diameter decreases gradually toward its tip; and a head tip part that extends from the tip of the head base part.SELECTED DRAWING: Figure 2

Description

本発明は、義歯の排列・調整加工を行う義歯排列・調整用バーに関するものである。   The present invention relates to a denture arranging / adjusting bar for arranging / adjusting dentures.

歯科医師や歯科技工士は、回転切削工具を用いてレジン制作物や入れ歯（義歯）、石膏模型の調整や義歯の基底部に義歯の維持孔の削孔を行う。ここで、削孔には、例えば、特許文献１に開示されているような歯科用ドリル、調整には、例えば、特許文献２に開示されているような歯科用バーが用いられる。   Dentists and dental technicians use a rotary cutting tool to adjust resin products, dentures (dentures), plaster models, and drill denture maintenance holes in the base of dentures. Here, for the drilling, for example, a dental drill as disclosed in Patent Document 1 is used, and for adjustment, for example, a dental bar as disclosed in Patent Document 2 is used.

このように、用途に応じて複数のバーを用いる必要があることから、工程に応じてバーを交換する必要があるため、煩雑であり、作業効率が劣っていた。また、特許文献１に開示されているような歯科用ドリルでは、垂直に削孔できず、斜めに削孔されてしまう問題があった。そこで、非特許文献１には、ダイヤモンドを電着した切削部の先端に直径が細い先端部を設け、1本で維持孔の削孔と基底部の切削が可能な歯科用バーを開示している。しかしながら、ダイヤモンドを電着した切削部の切削面に、切削した切削粉が目詰まりして切削ができなくなることから、一定時間毎に切削粉の除去を行う必要があり煩雑であった。また、歯科医師が患者の口腔内で咬合調整や義歯の基底部を切削加工すると、ダイヤモンド砥粒が剥離して脱落するため、患者に不快感を与え、また、衛生的にも好ましくない、という問題があった。   As described above, since it is necessary to use a plurality of bars depending on the application, it is necessary to replace the bars according to the process, which is complicated, and the working efficiency is inferior. Further, in the dental drill disclosed in Patent Document 1, there is a problem that the drilling cannot be performed vertically and the drilling is performed diagonally. Therefore, Non-Patent Document 1 discloses a dental bar in which a tip having a small diameter is provided at the tip of a cutting portion electrodeposited with diamond, and a single hole can cut a maintenance hole and cut a base portion. I have. However, the cutting surface of the cutting portion on which the diamond is electrodeposited is clogged with the cutting powder and cutting cannot be performed. Therefore, it is necessary to remove the cutting powder at regular time intervals, which is complicated. In addition, if the dentist adjusts the occlusal adjustment or cuts the base of the denture in the patient's mouth, the diamond abrasive grains peel off and fall off, giving the patient discomfort and also being unfavorable in terms of sanitation. There was a problem.

特開２０１２−０７５６９６号公報JP 2012-075696 A 特表２００３−５１７３５０号公報JP-T-2003-517350

山八歯材工業株式会社ＨＰ http://www.yamahachi-dental.co.jp/products/14abrasive/17pig_bristles/index.php#toothburYamahachi Dental Industry Co., Ltd. http://www.yamahachi-dental.co.jp/products/14abrasive/17pig_bristles/index.php#toothbur

本発明は、１本で義歯の排列・調整加工を行うことが可能であって、かつ、義歯の維持孔を容易に垂直に削孔可能なこと、並びに切削屑が目詰まりすることない義歯排列・調整用バーを提供することを目的とする。併せて、歯科医師が患者の口腔内で使用しても、砥粒が脱落して患者に不快感を与えることがなく、衛生的にも優れた義歯排列・調整用バーを提供することを目的とする。   The present invention is capable of arranging and adjusting a denture with a single tooth, and easily and vertically drilling a maintenance hole of a denture, and an arrangement of a denture without cutting chips clogging.・ To provide an adjustment bar. At the same time, even if the dentist uses it in the patient's mouth, the abrasive grains do not fall off and do not cause discomfort to the patient. And

本発明に係る義歯排列・調整用バーは、棒状の軸部と、
軸部の先端に配置されるヘッド部と 、を備え、
ヘッド部は、先端方向に直径が漸減する形状を有するヘッド基底部と該ヘッド基底部の先端から伸長する ヘッド先端部とを有する、義歯排列・調整用バーである。 The denture arrangement / adjustment bar according to the present invention has a rod-shaped shaft portion,
And a head portion arranged at the tip of the shaft portion,
The head portion is a denture arrangement / adjustment bar having a head base portion having a shape whose diameter gradually decreases in the distal direction and a head distal portion extending from the distal end of the head base portion.

本発明に係る義歯排列・調整用バーであれば、１本の義歯排列・調整用バーで義歯の維持孔を削孔、義歯の切削及び咬合調整を行うことが可能であり、工程に合わせて義歯排列・調整用バーを交換する煩雑さがない。     With the denture arrangement / adjustment bar according to the present invention, a single denture arrangement / adjustment bar can be used for drilling the maintenance hole of the denture, cutting the denture, and performing occlusal adjustment. There is no need to replace the denture arrangement / adjustment bar.

本発明に係る義歯排列・調整用バーのヘッド部は、ヘッド基底部の外表面及びヘッド先端部の先端表面に、クロスカット状の切削刃を有する義歯排列・調整用バーである。   The head portion of the denture arranging / adjusting bar according to the present invention is a denture arranging / adjusting bar having a cross-cut cutting blade on the outer surface of the head base and the tip end surface of the head tip.

本発明に係る義歯排列・調整用バーであれば、義歯の切削及び咬合調整を容易に行うことができる。   With the denture arranging and adjusting bar according to the present invention, cutting and occlusal adjustment of the denture can be easily performed.

本発明に係る義歯排列・調整用バーのヘッド先端部の直径は、先端方向に向かって暫増する義歯排列・調整用バーである。   The diameter of the head distal end portion of the denture arranging / adjusting bar according to the present invention is a denture arranging / adjusting bar that gradually increases in the distal direction.

歯科医師が患者の口腔内で咬合調整する際に、ヘッド先端部を挿入して咬合調整を容易に行うことができる。   When the dentist performs occlusal adjustment in the patient's mouth, the occlusal adjustment can be easily performed by inserting the head tip.

本発明に係る義歯排列・調整用バーのヘッド基底部の長さが１０〜２０ｍｍ及び最大径が４〜１０ｍｍである義歯排列・調整用バーである。   The denture arranging / adjusting bar according to the present invention is a denture arranging / adjusting bar having a head base length of 10 to 20 mm and a maximum diameter of 4 to 10 mm.

本発明に係る義歯排列・調整用バーであれば、義歯の基底部の切削加工が容易に行うことができる。   With the denture arranging / adjusting bar according to the present invention, the base portion of the denture can be easily cut.

本発明に係る義歯排列・調整用バーのヘッド先端部の長さが５〜１２ｍｍ及び直径が１．４〜３ｍｍである、義歯排列・調整用バーである。   A denture arranging / adjusting bar according to the present invention, wherein the length of the head end portion of the denture arranging / adjusting bar is 5 to 12 mm and the diameter is 1.4 to 3 mm.

本発明に係る義歯排列・調整用バーであれば、咬合調整並びに義歯の維持孔付与（削孔）を容易に行うことができる。   With the denture arranging and adjusting bar according to the present invention, occlusal adjustment and provision of a maintenance hole for a denture (drilling) can be easily performed.

本発明に係る義歯排列・調整用バーのヘッド先端部は、先端面の中心を通るスリットを有する義歯排列・調整用バーである。   The head end of the denture arranging / adjusting bar according to the present invention is a denture arranging / adjusting bar having a slit passing through the center of the distal end surface.

本発明に係る義歯排列・調整用バーであれば、義歯の維持孔付与（削孔）を確実に垂直に行うことができる。   With the denture arranging and adjusting bar according to the present invention, it is possible to reliably perform the maintenance hole formation (perforation) of the denture vertically.

本発明に係る義歯排列・調整用バーのスリットは、１つ又は平行する複数の溝 を含む、義歯排列・調整用バーである。   The slit of the denture arrangement / adjustment bar according to the present invention is a denture arrangement / adjustment bar including one or a plurality of parallel grooves.

本発明に係る義歯排列・調整用バーであれば、義歯の維持孔付与（削孔）をより確実に垂直に行うことができる。   With the denture arranging / adjusting bar according to the present invention, it is possible to more reliably perform the maintenance hole formation (cutting) of the denture vertically.

本発明に係る義歯排列・調整用バーのスリットの幅は０．０１〜０．３ｍｍである、義歯排列・調整用バーである。   The denture arrangement / adjustment bar according to the present invention has a slit width of 0.01 to 0.3 mm.

本発明に係る義歯排列・調整用バーであれば、義歯の維持孔付与（削孔）をより確実に垂直に行うことができる。     With the denture arranging / adjusting bar according to the present invention, it is possible to more reliably perform the maintenance hole formation (cutting) of the denture vertically.

本発明に係る義歯排列・調整用バーの材質が、タングステンカーバイト又はジルコニアである義歯排列・調整用バーである。   The denture arrangement / adjustment bar according to the present invention is a denture arrangement / adjustment bar made of tungsten carbide or zirconia.

義歯排列・調整用バーの材質が、タングステンカーバイト又はジルコニアであれば、切削材としてダイヤモンドを用いた場合のように、刃に切削屑が目詰まりすることないので切削屑を清掃除去する煩雑さがない。また、砥粒が脱落して患者に不快感を与えることがなく、衛生的にも優れていることから、歯科医師が患者の口腔内で使用することも可能である。   If the denture arranging / adjusting bar is made of tungsten carbide or zirconia, there is no need to clean and remove the cutting debris because the cutting debris will not be clogged as in the case of using diamond as a cutting material. There is no. In addition, since the abrasive grains do not fall off and do not cause discomfort to the patient, and are excellent in hygiene, the dentist can use it in the oral cavity of the patient.

本発明に係る義歯排列・調整用バーであれば、工程に応じて交換することなく１本で義歯の排列・調整加工を行うことが可能であり、工程に合わせて義歯排列・調整用バーを交換する煩雑さがない。   With the denture arrangement / adjustment bar according to the present invention, it is possible to perform denture arrangement / adjustment processing with a single tooth without replacement according to the process, and the denture arrangement / adjustment bar can be adjusted according to the process. There is no need to change.

図１は、本発明に係る義歯排列・調整用バーを用いて、総義歯を調整・加工している状態を示す模式斜視図である。FIG. 1 is a schematic perspective view showing a state in which a complete denture is being adjusted and processed using a denture arranging / adjusting bar according to the present invention. 図２は、本発明に係る義歯排列・調整用バーの実施形態を示す平面図である。FIG. 2 is a plan view showing an embodiment of a denture arrangement / adjustment bar according to the present invention. 図３は、本発明に係る義歯排列・調整用バーの実施形態のヘッド先端部の拡大図である。FIG. 3 is an enlarged view of the head end portion of the embodiment of the denture arranging / adjusting bar according to the present invention. 図４は、本発明に係る義歯排列・調整用バーの実施形態の変形例を示す平面図である。FIG. 4 is a plan view showing a modified example of the embodiment of the denture arrangement / adjustment bar according to the present invention. 図５は、本発明に係る義歯排列・調整用バーの実施形態の変形例のヘッド先端部の拡大図である。FIG. 5 is an enlarged view of a head end portion of a modified example of the embodiment of the denture arrangement / adjustment bar according to the present invention.

以下、本発明の一実施形態を、説明する。   Hereinafter, an embodiment of the present invention will be described.

図１に、本実施形態に係る義歯排列・調整用バー２がハンドピース１に取り付けられ、総義歯３の切削加工を行っている状態を示す。   FIG. 1 shows a state in which a denture arrangement / adjustment bar 2 according to the present embodiment is attached to a handpiece 1 and cutting of a complete denture 3 is performed.

ハンドピース１は、モーター（不図示）を内蔵する略円柱状体であり、先端に開口を有する。この開口に義歯排列・調整用バー２の軸部１１を挿入し、義歯排列・調整用バー２に回転を伝える。   The handpiece 1 is a substantially columnar body containing a motor (not shown) and has an opening at the tip. The shaft 11 of the denture arrangement / adjustment bar 2 is inserted into this opening, and the rotation is transmitted to the denture arrangement / adjustment bar 2.

図２に本実施形態に係る義歯排列・調整用バー２の平面図を示す。本実施形態は、大臼歯・小臼歯用の義歯排列・調整用バー２である。   FIG. 2 is a plan view of the denture arrangement / adjustment bar 2 according to the present embodiment. This embodiment is a denture arranging / adjusting bar 2 for molars and premolars.

義歯排列・調整用バー２は、タングステンカーバイトからなる1本の棒状体から切削加工により成型され、円柱状の軸部１１と軸部１１の先端に形成されたヘッド部２１とを備える。ヘッド部２１は、先端に向かって直径が漸減する形状、本実施形態では一例として砲弾状の形態を有するヘッド基底部２２と、ヘッド基底部２２の先端から伸長する柱状のヘッド先端部２３を有する。なお、義歯排列・調整用バー２は、ステンレスなどの金属製の軸部１１にタングステンカーバイトからなるヘッド部２１を接合しても良い。また、ヘッド部２１の材質は、義歯を切削・削孔が可能な硬質材であれば良く、タングステンカーバイトに限られず、例えば超硬合金、ジルコニア、窒化ホウ素、サーメットなどであっても良い。また、ヘッド先端部２３とヘッド基底部２２とで、同一の素材を用いて一体的に成形してもよいし、複数の素材を用いて個別に構成したものを接合して構成してもよい。   The denture arrangement / adjustment bar 2 is formed by cutting a single rod-shaped body made of tungsten carbide, and includes a cylindrical shaft portion 11 and a head portion 21 formed at the tip of the shaft portion 11. The head portion 21 has a head base portion 22 having a shape whose diameter gradually decreases toward the front end, in this embodiment, for example, a shell shape, and a columnar head front end portion 23 extending from the front end of the head base portion 22. . The denture arranging / adjusting bar 2 may have a head portion 21 made of tungsten carbide joined to a shaft portion 11 made of metal such as stainless steel. The material of the head portion 21 may be a hard material capable of cutting and drilling a denture, and is not limited to tungsten carbide. For example, a cemented carbide, zirconia, boron nitride, cermet, or the like may be used. In addition, the head tip portion 23 and the head base portion 22 may be integrally formed using the same material, or may be formed by joining individually formed using a plurality of materials. .

ヘッド基底部２２は、軸方向の長さが１０〜２０ｍｍ、最大径が４〜１０ｍｍであり、外周面にクロスカット状の切削刃２６を有する。ヘッド基底部２２の長さが１０ｍｍ未満であると、義歯の基底部の切削加工を行う際に、広い面積で切削加工を行うことができず、また、長さが２０ｍｍを超えると、義歯の基底部に対して切削面が長すぎて作業性が低下し、好ましくない。一方、最大径が４ｍｍ未満であると、広い面積で切削加工を行うことができず、また、最大径が１０ｍｍを超えると、切削面が広すぎて好ましくない。クロスカットの刃の数は、右刃が１２〜３６枚、左刃６〜２６枚であり、刃の数が右刃１２枚未満、左刃６枚未満であると、切削面が粗くなりすぎて好ましくなく、右刃３７枚以上、左刃２７枚以上であと、目が細かすぎて切削加工の作業性が悪化し好ましくない。なお、大臼歯・小臼歯用の義歯排列・調整用バー２のヘッド基底部２２は、軸方向の長さが１４ｍｍ、最大径が６ｍｍであると、作業性が良好である。   The head base 22 has an axial length of 10 to 20 mm, a maximum diameter of 4 to 10 mm, and has a cross-cutting cutting blade 26 on the outer peripheral surface. When the length of the head base portion 22 is less than 10 mm, when performing the cutting process of the base portion of the denture, the cutting process cannot be performed over a wide area. When the length exceeds 20 mm, the The cutting surface is too long with respect to the base portion, which lowers the workability, which is not preferable. On the other hand, if the maximum diameter is less than 4 mm, it is not possible to perform cutting in a wide area, and if the maximum diameter exceeds 10 mm, the cut surface is too wide, which is not preferable. The number of blades for cross cutting is 12 to 36 for the right blade and 6 to 26 for the left blade. If the number of blades is less than 12 for the right blade and less than 6 for the left blade, the cutting surface becomes too rough. If the number of right blades is 37 or more and the number of left blades is 27 or more, it is not preferable because the eyes are too fine and the workability of the cutting process deteriorates. The workability of the head base 22 of the denture arranging / adjusting bar 2 for molars and premolars is good when the axial length is 14 mm and the maximum diameter is 6 mm.

ヘッド基底部２２の形状が、先端に向かって直径が漸減する形状、本実施形態では一例として砲弾状の形態であると、義歯の形状に沿って義歯の切削を行うことが可能であり、不必要に広い面積を切削することがなく、好ましい。   If the shape of the head base portion 22 is a shape in which the diameter gradually decreases toward the tip, in this embodiment, as an example, a cannon shape, it is possible to cut the denture along the shape of the denture, This is preferable because a large area is not required to be cut.

ヘッド先端部２３の全長は５〜１２ｍｍ、直径は１．４〜３ｍｍであり、ヘッド基底部２２側から先端に向かって、直径が暫増している。また、先端側１／２乃至４／５の外周面には、クロスカットされた切削刃２６を有する。ヘッド先端部２３の先端面２４は、ドーム状をなし、一例として平行する２本の溝を含むスリット２５を有する。ヘッド先端部２３の全長が５ｍｍ未満であると、咬合調整を行う際に十分な切削面を確保できず、また、１２ｍｍを超えると長すぎて作業性が悪化することから、好ましくない。一方、直径が１．４ｍｍ未満であると削孔した維持孔の内径が小さくて、３ｍｍを超えると維持孔の内径が大きくて、好ましくない。クロスカットの刃の数は、右刃が６〜２０枚、左刃４〜１６枚であり、刃の数が右刃６枚未満、左刃４枚未満であると、切削面が粗くなりすぎて好ましくなく、右刃２１枚以上、左刃１７枚以上であと、目が細かすぎて切削加工の作業性が悪化し好ましくない。また、ヘッド先端部２３のヘッド基端部２２側の１／２乃至１／５には、ヘッド先端部２３とヘッド基端部２２のそれぞれのクロスカットの刃数が異なることから、クロスカットが施されていない。なお、大臼歯・小臼歯用の義歯排列・調整用バー２のヘッド先端部２３は、軸方向の長さが６ｍｍ、最大径が２ｍｍであると、作業性が良好である。また、ヘッド先端部２３が先端方向に向かって直径が暫増していると、歯科医師が患者の口腔内で咬合調整する際に、ヘッド先端部を挿入して咬合調整を容易に行うことができ、好ましい。ヘッド先端部２３の先端面２４は、ドーム状をなしていると、小さな面積を切削可能であり、微細な咬合調整を行うことが可能であり、好ましい。   The total length of the head tip 23 is 5 to 12 mm and the diameter is 1.4 to 3 mm, and the diameter increases gradually from the head base 22 side toward the tip. In addition, a cutting blade 26 that has been cross-cut is provided on the outer peripheral surface of the tip side 1/2 to 4/5. The distal end face 24 of the head distal end portion 23 has a dome shape, and has a slit 25 including two parallel grooves as an example. If the total length of the head tip portion 23 is less than 5 mm, a sufficient cutting surface cannot be secured when performing occlusion adjustment, and if it exceeds 12 mm, the workability is deteriorated because it is too long. On the other hand, when the diameter is less than 1.4 mm, the inner diameter of the drilled maintenance hole is small, and when it exceeds 3 mm, the inner diameter of the maintenance hole is large, which is not preferable. The number of blades for cross cutting is 6 to 20 for the right blade and 4 to 16 for the left blade. If the number of blades is less than 6 for the right blade and less than 4 for the left blade, the cutting surface becomes too rough. When the number of right blades is 21 or more and the number of left blades is 17 or more, the workability of cutting is deteriorated because the eyes are too fine, which is not preferable. In addition, since the number of blades of the cross cut of the head distal end portion 23 and the head base end portion 22 is different from 乃至 to １ ／ of the head distal end portion 23 on the side of the head proximal end portion 22, the cross cut is not performed. Not applied. The workability of the head end portion 23 of the denture arranging / adjusting bar 2 for molars and premolars is good when the axial length is 6 mm and the maximum diameter is 2 mm. In addition, when the diameter of the head distal end portion 23 is gradually increased in the distal direction, when the dentist adjusts the occlusion in the patient's mouth, the head distal end portion can be easily inserted and adjusted. ,preferable. It is preferable that the tip surface 24 of the head tip portion 23 has a dome shape, since a small area can be cut and fine occlusion adjustment can be performed.

図３にヘッド先端部２３の拡大図を示す。（Ａ）は正面図であり、（Ｂ）は斜視図である。ヘッド先端部２３の先端面２４のスリット２５は、２本の溝２７を含んで先端面２４の中心を通る。それぞれの溝２７の開口幅０．０１〜０．３ｍｍ、深さ０．０３〜０．５ｍｍである。ヘッド先端部２３の先端面２４にスリット２５を有すると、維持孔を垂直に付与（削孔）することが可能であるが、スリット２５を有しないと、垂直に維持孔を付与することが困難であり、好ましくない。なお、スリット２５の数は、ヘッド先端部２３の直径に基づき、適宜決定すれば良い。   FIG. 3 shows an enlarged view of the head tip 23. (A) is a front view, (B) is a perspective view. The slit 25 in the front end surface 24 of the head front end 23 passes through the center of the front end surface 24 including the two grooves 27. Each groove 27 has an opening width of 0.01 to 0.3 mm and a depth of 0.03 to 0.5 mm. If a slit 25 is provided in the distal end surface 24 of the head distal end portion 23, a maintenance hole can be vertically provided (drilled). However, if the slit 25 is not provided, it is difficult to vertically provide the maintenance hole. Which is not preferred. Note that the number of the slits 25 may be appropriately determined based on the diameter of the head tip 23.

次に、本発明の実施形態の変形例に係る前歯用の義歯排列・調整用バー２について、説明する。   Next, a denture arranging / adjusting bar 2 for front teeth according to a modification of the embodiment of the present invention will be described.

図４に、前歯用の義歯排列・調整用バー２の平面図を、図５にヘッド先端部２３の拡大図を示す。（Ａ）は正面図であり、（Ｂ）は斜視図である。   FIG. 4 is a plan view of the denture arrangement / adjustment bar 2 for front teeth, and FIG. (A) is a front view, (B) is a perspective view.

本発明の実施形態の変形例に係る前歯用の義歯排列・調整用バー２は、実施形態と同様に、円柱状の軸部１１と軸部１１の先端に形成されたヘッド部２１とを備え、ヘッド部２１は、先端向かって直径が漸減する砲弾状の形態を有するヘッド基底部２２と、ヘッド基底部２２の先端から伸長する円柱状のヘッド先端部２３を有する。なお、前歯用の義歯排列・調整用バー２のヘッド基底部２２も同様に、軸方向の長さが１４ｍｍ、最大径が６ｍｍであると、作業性が良好である。   A denture arranging / adjusting bar 2 for front teeth according to a modification of the embodiment of the present invention includes a columnar shaft portion 11 and a head portion 21 formed at the tip of the shaft portion 11, as in the embodiment. The head portion 21 has a head base portion 22 having a bullet-like shape whose diameter gradually decreases toward the front end, and a cylindrical head front end portion 23 extending from the front end of the head base portion 22. The workability of the head base 22 of the denture arranging / adjusting bar 2 for the front teeth is also good when the axial length is 14 mm and the maximum diameter is 6 mm.

ヘッド先端部２３の長さは１０ｍｍ及び直径は１．６ｍｍであり、細く且つ長い維持孔の削孔に好適である。また、先端側１／２乃至４／５の外周面には、クロスカットされた切削刃２６を有するが、直径は一定であり、前歯の義歯の切削に好適な形状を有する。また、ヘッド先端部２３の先端面２４は、ドーム状をなし、１本の溝２７を含むスリット２５を有する。溝２７の開口幅０．０１〜０．３ｍｍ、深さ０．０３〜０．５ｍｍである。   The head tip 23 has a length of 10 mm and a diameter of 1.6 mm, and is suitable for forming a thin and long maintenance hole. Further, the outer peripheral surface of the front end side １ ／ to 有 す る has a cross-cutting cutting blade 26, but has a constant diameter, and has a shape suitable for cutting the anterior denture. Further, the tip end face 24 of the head tip portion 23 has a dome shape and has a slit 25 including one groove 27. The opening width of the groove 27 is 0.01 to 0.3 mm and the depth is 0.03 to 0.5 mm.

次に、本発明に係る義歯排列・調整用バー２を用いて行う、義歯の加工について説明する。先ず、加工を行う歯に適する義歯排列・調整用バー２を選択の上、ハンドピース１の先端の開口に義歯排列・調整用バー２の軸部１１を挿入し固定する。次に、ハンドピースのスイッチ（不図示）を入れ、義歯排列・調整用バー２を回転させ、例えば、義歯の基底部を切削する際には、ヘッド基底部２２の外周面を義歯の基底部に当てて切削加工を行う。また、義歯に維持孔を付与（削孔）する際には、義歯に垂直にヘッド先端部２３を押し当てて、付与する。一方、咬合を調整する際には、ヘッド先端部２３の外周面を用いて調整を行う。したがって、一連の作業を1本の義歯排列・調整用バー２で行うことが可能であり、作業の工程に応じて義歯排列・調整用バー２を交換する必要がなく、作業効率を向上することができる。   Next, the processing of the denture using the denture arranging and adjusting bar 2 according to the present invention will be described. First, after selecting the denture arrangement / adjustment bar 2 suitable for the tooth to be processed, the shaft portion 11 of the denture arrangement / adjustment bar 2 is inserted into the opening at the tip of the handpiece 1 and fixed. Next, a switch (not shown) of the handpiece is turned on, and the denture arrangement / adjustment bar 2 is rotated. For example, when cutting the base of the denture, the outer peripheral surface of the head base 22 is fixed to the base of the denture. And perform cutting. In addition, when a maintenance hole is provided (drilled) in the denture, the head distal end portion 23 is pressed perpendicularly to the denture to provide the maintenance hole. On the other hand, when adjusting the occlusion, adjustment is performed using the outer peripheral surface of the head distal end portion 23. Therefore, it is possible to perform a series of operations with one denture arrangement / adjustment bar 2, and it is not necessary to replace the denture arrangement / adjustment bar 2 according to the operation process, thereby improving work efficiency. Can be.

本発明に係る義歯排列・調整用バーであれば、作業の工程に応じて義歯排列・調整用バー２を交換することなく１本で義歯の排列・調整加工を行うことが可能であって、かつ、義歯の維持孔を容易に垂直に削孔可能なこと、並びに切削屑が目詰まりすることがない。併せて、砥粒が脱落して患者に不快感を与えることがなく、衛生的にも優れていることから、歯科医師が患者の口腔内で使用することも可能である。   With the denture arrangement / adjustment bar according to the present invention, it is possible to perform the denture arrangement / adjustment processing with one piece without replacing the denture arrangement / adjustment bar 2 according to the operation process. In addition, the maintenance hole of the denture can be easily drilled vertically, and cutting chips are not clogged. At the same time, since the abrasive grains do not fall off and do not cause discomfort to the patient and are excellent in hygiene, the dentist can use it in the oral cavity of the patient.

１ ハンドピース
２ 義歯排列・調整用バー
３ 総義歯
１１ 軸部
２１ ヘッド部
２２ ヘッド基底部
２３ ヘッド先端部
２４ 先端面
２５ スリット
２６ 切削刃
２７ 溝

DESCRIPTION OF SYMBOLS 1 Handpiece 2 Denture arrangement / adjustment bar 3 Complete denture
11 Shaft 21 Head 22 Head base 23 Head tip 24 Tip face 25 Slit 26 Cutting blade 27 Groove

Claims (9)

棒状の軸部と、
前記軸部の先端に配置されるヘッド部と、を備え、
前記ヘッド部は、先端方向に直径が漸減する形状を有するヘッド基底部と該ヘッド基底部の先端から伸長するヘッド先端部とを有する、義歯排列・調整用バー。 A rod-shaped shaft,
A head portion disposed at the tip of the shaft portion,
A denture arranging / adjusting bar, wherein the head portion has a head base having a shape whose diameter gradually decreases in the distal direction and a head distal end extending from the distal end of the head base. 前記ヘッド部は、前記ヘッド基底部の外表面及び前記ヘッド先端部の先端表面に、クロスカット状の切削刃を有する請求項１に記載の義歯排列・調整用バー。   The denture arrangement / adjustment bar according to claim 1, wherein the head portion has a cross-cutting cutting blade on an outer surface of the head base portion and a tip surface of the head tip portion. 前記ヘッド先端部の直径は、先端方向に向かって暫増する請求項１又は２に記載の義歯排列・調整用バー。   The bar for denture arrangement / adjustment according to claim 1 or 2, wherein the diameter of the head tip portion increases gradually toward the tip end. 前記ヘッド基底部の長さが１０〜２０ｍｍ及び最大径が４〜１０ｍｍである、請求項１〜３のいずれか一項に記載の義歯排列・調整用バー。   The denture arrangement / adjustment bar according to any one of claims 1 to 3, wherein the head base has a length of 10 to 20 mm and a maximum diameter of 4 to 10 mm. 前記ヘッド先端部の長さが５〜１２ｍｍ及び直径が１．４〜３ｍｍである、請求項１〜４のいずれか一項に記載の義歯排列・調整用バー。   The denture arrangement / adjustment bar according to any one of claims 1 to 4, wherein the length of the head tip is 5 to 12 mm and the diameter is 1.4 to 3 mm. 前記ヘッド先端部は、先端面の中心を通るスリットを有する請求項１〜５のいずれか一項に記載の義歯排列・調整用バー。   The denture arranging and adjusting bar according to any one of claims 1 to 5, wherein the head tip has a slit passing through the center of the tip face. 前記スリットは、１つ又は平行する複数の溝を含む、請求項６に記載の義歯排列・調整用バー。   The denture arrangement / adjustment bar according to claim 6, wherein the slit includes one or a plurality of parallel grooves. 前記スリットの幅は０．０１〜０．３ｍｍである、請求項６又は７に記載の義歯排列・調整用バー。   The denture arranging / adjusting bar according to claim 6, wherein the width of the slit is 0.01 to 0.3 mm. 前記義歯排列・調整用バーの材質が、タングステンカーバイト又はジルコニアである請求項１〜８のいずれか一項に記載の義歯排列・調整用バー。

The denture arrangement / adjustment bar according to any one of claims 1 to 8, wherein a material of the denture arrangement / adjustment bar is tungsten carbide or zirconia.

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JP6829360B1 (en) * 2019-12-26 2021-02-10 合同会社Ｗｓｐｔジャパン Cutting / polishing bar
JP2021104267A (en) * 2019-12-26 2021-07-26 合同会社Ｗｓｐｔジャパン Bar for cutting and polishing

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