JPH0263453A - Blade type artificial tooth root - Google Patents
Blade type artificial tooth rootInfo
- Publication number
- JPH0263453A JPH0263453A JP63213730A JP21373088A JPH0263453A JP H0263453 A JPH0263453 A JP H0263453A JP 63213730 A JP63213730 A JP 63213730A JP 21373088 A JP21373088 A JP 21373088A JP H0263453 A JPH0263453 A JP H0263453A
- Authority
- JP
- Japan
- Prior art keywords
- artificial tooth
- tooth root
- whose
- silicon nitride
- blade type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 13
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910000389 calcium phosphate Inorganic materials 0.000 claims abstract description 6
- 239000001506 calcium phosphate Substances 0.000 claims abstract description 6
- 235000011010 calcium phosphates Nutrition 0.000 claims abstract description 6
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000001354 calcination Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 210000001519 tissue Anatomy 0.000 description 4
- 210000000988 bone and bone Anatomy 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 229910052588 hydroxylapatite Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000011359 shock absorbing material Substances 0.000 description 2
- 208000035143 Bacterial infection Diseases 0.000 description 1
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical class O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 208000022362 bacterial infectious disease Diseases 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- -1 for example Chemical compound 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910001453 nickel ion Inorganic materials 0.000 description 1
- 229910000623 nickel–chromium alloy Inorganic materials 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 230000011164 ossification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005240 physical vapour deposition Methods 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Landscapes
- Materials For Medical Uses (AREA)
- Dental Prosthetics (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、歯科用或いは整形外科用の窒化ケイ素製人工
歯根に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an artificial tooth root made of silicon nitride for use in dentistry or orthopedics.
従来、硬■織代替材料として主として金属が使用されて
いる。又、最近ではセラミックス、ヒドロキシアパタイ
ト等も用いられている。Conventionally, metals have been mainly used as substitute materials for hard textiles. In addition, ceramics, hydroxyapatite, etc. are also being used recently.
〔解決されるべき課題］
しかしながら、硬組犠代替材料として広（用いられてい
るニッケルークロム合金は安価で加工し易いものの、ニ
ッケルイオンが溶出しアレルギー性疾患を引き起こし易
いという欠点がある。又、チタンは機械的強度が大であ
るものの、非常に硬いため微細な加工が困難である。更
に、金属に代わるものとして使用されているセラミック
スとして広く使用されているアルミナ結晶は、生体親和
性に劣り、結晶内に生ずる微細な残留気泡により破折す
るという欠点がある。又、生体親和性の優れたセラミッ
クスとしてヒドロキシアパタイト或いはこれを含有する
材料が開発されているが、機械的強度が充分ではなく、
大きな荷重に耐えるものとするためには単位面積を大き
くする必要があり、薄い歯槽骨を有する患者には使用で
きない。[Problems to be solved] However, although the nickel-chromium alloy that is widely used as a substitute material for hard construction is cheap and easy to process, it has the disadvantage that nickel ions are easily eluted and cause allergic diseases. Although titanium has great mechanical strength, it is extremely hard and difficult to process in fine detail.Furthermore, alumina crystals, which are widely used as ceramics to replace metals, have poor biocompatibility. Hydroxyapatite and materials containing it have been developed as ceramics with excellent biocompatibility, but they do not have sufficient mechanical strength. Without,
In order to withstand a large load, the unit area must be large, and it cannot be used for patients with thin alveolar bone.
本発明の人工歯根の素材である窒化ケイ素は、機械的強
度が大であり、細く薄く加工することが可能であり、又
、生体不活性ではあるが生体組礒との癒着性が侵れたも
のである。Silicon nitride, which is the material for the artificial tooth root of the present invention, has high mechanical strength and can be processed to be thin and thin, and although it is biologically inert, it has poor adhesion with living tissue. It is something.
本発明は、基底部に複数個の穴或いは孔を設けたことを
特徴とする凸型ブレードタイプの窒化ケイ素製人工歯根
及びその基底部周辺表面にリン酸カルシウムをコーティ
ングしたことを特徴とする凸型ブレードタイプの窒化ケ
イ素製人工歯根に関する。The present invention relates to a convex blade type artificial tooth root made of silicon nitride, which is characterized by having a plurality of holes or holes in its base, and a convex blade, which is characterized by having a surface around the base thereof coated with calcium phosphate. This invention relates to a type of artificial tooth root made of silicon nitride.
本発明の凸型ブレードタイプの人工歯根は、複数個の穴
或いは孔が設けられた基底部を歯槽骨内に埋設すること
により、生体硬組織に強固に固定される。又、本発明の
人工歯根の他の先端部には人工面取付は部が設けられる
。この人工面取付は部の形状は人工歯が確実に取り付け
られるものであれば良く、特に制限をされるものではな
い。人工面取付は部には咬合による衝撃を吸収するため
、衝撃吸収材を設けてもよい。衝撃吸収材としてはシリ
コンゴム、ポリウレタンエラストマー等から成形された
ものが用いられる。The convex blade type artificial tooth root of the present invention is firmly fixed to the hard body tissue by embedding the base portion provided with a plurality of holes or holes in the alveolar bone. Further, the other tip of the artificial tooth root of the present invention is provided with an artificial surface attachment part. The shape of the artificial surface attachment is not particularly limited as long as the artificial tooth can be securely attached. In order to absorb the shock caused by occlusion, a shock absorbing material may be provided in the artificial surface attachment part. As the shock absorbing material, one molded from silicone rubber, polyurethane elastomer, etc. is used.
本発明の凸型ブレードクイブの人工歯根は、窒化ケイ素
顆粒を成形用金型内に圧密充填し、加熱焼成することに
より作製される。又、必要に応じて上記によって作製さ
れた成形品を機械的に切削加工して仕上げをすることも
できる。The artificial tooth root of the convex blade quib of the present invention is produced by compactly filling silicon nitride granules into a mold and heating and baking the granules. Furthermore, if necessary, the molded product produced in the above manner can be mechanically cut and finished.
本発明の人工歯根は、生体硬ａ織との結合性を高めるた
め、その表面を粗面とすることが好ましい。表面を粗面
とする方法としては、
（１）焼結をしたまま研磨を充分に行わない。The surface of the artificial tooth root of the present invention is preferably roughened in order to enhance the bondability with the biological hard tissue. Methods for making the surface rough are: (1) Do not sufficiently polish the sintered product.
（２）焼結晶をアルミナ、鉄、炭化ケイ素などの微細粒
によりショツトブラスト処理する。(2) The fired crystals are shot blasted with fine particles of alumina, iron, silicon carbide, etc.
（３）焼結晶のガラス質をフッ化硝酸でエツチング処理
する。(3) Etching the glassy material of the fired crystal with fluorinated nitric acid.
（４）焼結晶を機械的に研削する。(4) Mechanically grinding the fired crystal.
等が挙げられる。etc.
更に、本発明の凸型ブレードタイプの人工歯根の生体硬
組織への結合性を高めるために、表面にリン酸カルシウ
ム、例えば、ヒドロキシアパタイト、３ＣＰ、ｄＣＰ系
の物質をコーティングすることもできる。コーティング
方法としては、例えば、アルゴンガス中でリン酸カルシ
ウム分子を物理的に放出させ、それを人工歯根表面に付
着、被覆させるＰＶＤスパッタリング法が採用できる。Furthermore, in order to enhance the bonding ability of the convex blade type artificial tooth root of the present invention to biological hard tissues, the surface thereof can be coated with calcium phosphate, for example, hydroxyapatite, 3CP, or dCP-based substances. As a coating method, for example, a PVD sputtering method can be employed in which calcium phosphate molecules are physically released in argon gas, and then adhered to and coated on the surface of the artificial tooth root.
次に、本発明の窒化ケイ素製人工歯根を図面によって説
明する。Next, the silicon nitride artificial tooth root of the present invention will be explained with reference to the drawings.
第１図は、複数個の穴或いは孔を設けた人工歯根の正面
図、第２図は、その側面図である。FIG. 1 is a front view of an artificial tooth root provided with a plurality of holes or holes, and FIG. 2 is a side view thereof.
第１図及び第２図に於いて、１は穴或いは孔を設けた人
工歯根、２は基底部、３は穴或いは孔、４は人工面取付
は部である。In FIGS. 1 and 2, 1 is a hole or an artificial tooth root provided with a hole, 2 is a base, 3 is a hole or hole, and 4 is an artificial surface attachment part.
人工歯根１は、その基底部の幅が１４〜１８ｍｍ程度、
人工面取付は部の幅が３〜６ ｍｍ程度の範囲、厚さが
１．７〜２．３胴程度の逆Ｔ字型のものが好ましい。The artificial tooth root 1 has a base width of about 14 to 18 mm,
The artificial surface attachment is preferably an inverted T-shape with a width of about 3 to 6 mm and a thickness of about 1.7 to 2.3 mm.
穴或いは孔３は、円形、楕円形、三角形成いは四角形何
れの形であってもよく、又、歯根を貫通している孔であ
ってもよいし、歯根表面に穿設された穴であってもよい
。穴或いは孔３の断面積は２ｍｍ”程度が好適である。The hole or hole 3 may be circular, oval, triangular, or square, and may be a hole penetrating the tooth root, or may be a hole drilled on the tooth root surface. There may be. The cross-sectional area of the hole or hole 3 is preferably about 2 mm''.
特に、好適な例としては、直径２．５ ｍｍ程度の３個
の円形の孔或いは直径３ ｍｍ程度の２個の円形の孔を
、基底部枦方向に等間隔に穿設したものが挙げられる。In particular, a suitable example is one in which three circular holes with a diameter of about 2.5 mm or two circular holes with a diameter of about 3 mm are bored at equal intervals in the direction of the base. .
窒化ケイ素は機械的強度が大でり、複雑な応力に耐える
ことができる。そのため窒化ケイ素読の人工歯根ではそ
の断面積を小とすることができる。Silicon nitride has great mechanical strength and can withstand complex stresses. Therefore, the cross-sectional area of an artificial tooth root made of silicon nitride can be made small.
又、窒化ケイ素は耐食性が極めて大であり、化学的活性
が非常に小であるため、生体内で化学的及び物理的に変
化を生ずることがない。更に、生体不活性ではあるもの
の、窒化ケイ素製人工歯根の周辺には骨の形成が認めら
れ、歯槽骨に書着固定され、又、歯肉部との結合が優れ
ており、細菌の感染が防止される。Furthermore, silicon nitride has extremely high corrosion resistance and extremely low chemical activity, so it does not undergo any chemical or physical changes in living organisms. Furthermore, although it is biologically inert, bone formation has been observed around the artificial tooth root made of silicon nitride, which is fixed to the alveolar bone and has excellent bonding with the gingival region, preventing bacterial infection. be done.
第１図は、複数個の穴或いは孔を設けた人工歯根の正面
図、第２図は、その側面図である。
１：複数個の穴或いは孔を設けた人工歯根２：基底部
３：穴或いは孔
４：人工面取付は部FIG. 1 is a front view of an artificial tooth root provided with a plurality of holes or holes, and FIG. 2 is a side view thereof. 1: Artificial tooth root with multiple holes or holes 2: Base part 3: Holes or holes 4: Artificial surface attachment part
Claims (2)
とする凸型ブレードタイプの窒化ケイ素製人工歯根。(1) A convex blade type silicon nitride artificial tooth root characterized by having a plurality of holes or holes in the base.
グしたことを特徴とする特許請求の範囲第（１）項記載
の人工歯根。(2) The artificial tooth root according to claim (1), wherein the peripheral surface of the base portion is coated with calcium phosphate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63213730A JPH0736828B2 (en) | 1988-08-30 | 1988-08-30 | Blade type artificial tooth root |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63213730A JPH0736828B2 (en) | 1988-08-30 | 1988-08-30 | Blade type artificial tooth root |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0263453A true JPH0263453A (en) | 1990-03-02 |
| JPH0736828B2 JPH0736828B2 (en) | 1995-04-26 |
Family
ID=16644050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63213730A Expired - Lifetime JPH0736828B2 (en) | 1988-08-30 | 1988-08-30 | Blade type artificial tooth root |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0736828B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6799970B2 (en) * | 2000-10-09 | 2004-10-05 | Jean-Paul Martin | Dental implant |
| CN112661519A (en) * | 2021-01-28 | 2021-04-16 | 威海圆环先进陶瓷股份有限公司 | Production technology of silicon nitride ceramic pile |
-
1988
- 1988-08-30 JP JP63213730A patent/JPH0736828B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6799970B2 (en) * | 2000-10-09 | 2004-10-05 | Jean-Paul Martin | Dental implant |
| CN112661519A (en) * | 2021-01-28 | 2021-04-16 | 威海圆环先进陶瓷股份有限公司 | Production technology of silicon nitride ceramic pile |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0736828B2 (en) | 1995-04-26 |
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