JPH0736827B2 - Post-type artificial tooth root - Google Patents
Post-type artificial tooth rootInfo
- Publication number
- JPH0736827B2 JPH0736827B2 JP63213729A JP21372988A JPH0736827B2 JP H0736827 B2 JPH0736827 B2 JP H0736827B2 JP 63213729 A JP63213729 A JP 63213729A JP 21372988 A JP21372988 A JP 21372988A JP H0736827 B2 JPH0736827 B2 JP H0736827B2
- Authority
- JP
- Japan
- Prior art keywords
- artificial tooth
- tooth root
- post
- silicon nitride
- ring
- 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.)
- Expired - Lifetime
Links
Classifications
-
- 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
- A61C8/0012—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the material or composition, e.g. ceramics, surface layer, metal alloy
-
- 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
- A61C8/0086—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools with shock absorbing means
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Ceramic Engineering (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Dentistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Materials For Medical Uses (AREA)
- Dental Prosthetics (AREA)
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。TECHNICAL FIELD The present invention relates to an artificial dental root made of silicon nitride for dental or orthopedic surgery.
従来、硬組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, a metal is mainly used as a hard tissue substitute material. Recently, ceramics, hydroxyapatite and the like have also been used.
しかしながら、硬組織代替材料として広く用いられてい
るニッケル−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。However, although the nickel-chromium alloy widely used as a hard tissue substitute material is inexpensive and easy to process, it has a drawback that nickel ions are easily eluted to cause an allergic disease. Further, although titanium has a large mechanical strength, it is very hard to be finely processed. Further, alumina crystals, which are widely used as ceramics used as a substitute for metals, have poor biocompatibility and have the drawback of breaking due to fine residual bubbles generated in the crystals. In addition, hydroxyapatite or a material containing it has been developed as a ceramic having excellent biocompatibility, but its mechanical strength is not sufficient.
In order to withstand a large load, the unit area needs to be large and cannot be used in 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織との癒着性が優れた
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 thin and thin,
Further, it is inactive in the living body but has excellent adhesiveness to the living tissue.
本願発明は、窒化ケイ素を素材とするインプラントの一
方の先端部に凹部を設けた人工歯根リング状部分が設け
られ、他の先端部に切欠部が設けられておりし、該表面
を粗面がPVDスパッタリング法によるリン酸カルシウム
で被覆されリン酸カルシウとする窒化ケイ素製ポスト型
人工歯根に関する。The present invention is provided with an artificial dental root ring-shaped portion provided with a concave portion at one tip portion of an implant made of silicon nitride, and a notch portion is provided at the other tip portion, and the surface has a rough surface. The present invention relates to a post-type artificial dental root made of silicon nitride, which is coated with calcium phosphate by PVD sputtering and is calcium phosphate.
本発明の窒化ケイ素製人工歯根は、その螺旋状部分或い
はリング状部分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、生体組織への固定を更
に確実なものとするために、歯槽骨内に埋設される螺旋
状部分或いはリング状部分の先端部に凹部を設ける。更
に、本発明のポスト型人工歯根の他の先端部には人工歯
を取り付けるための切欠部が設けられる。この切欠部の
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。切欠部には咬合に
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、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 artificial dental root made of silicon nitride of the present invention is firmly fixed to the living body hard tissue by embedding the spiral or ring-shaped part in the alveolar bone. Further, in order to further secure the fixation to the living tissue, a concave portion is provided at the tip of the spiral portion or ring-shaped portion embedded in the alveolar bone. Furthermore, a notch for attaching an artificial tooth is provided at the other tip of the post type artificial tooth root of the present invention. The shape of the notch is not particularly limited as long as the artificial tooth can be securely attached. An impact absorbing material may be provided in the notch to absorb the impact caused by the occlusion.
As the shock absorbing material, a material formed of silicon rubber, urethane elastomer or the like is used.
本発明のポスト型人工歯根は、窒化ケイ素顆粒を螺旋状
又はリング状部分を有する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 post-type artificial dental root of the present invention is produced by compactively filling silicon nitride granules in a mold having a spiral or ring-shaped portion and heating and firing. If necessary, the molded product produced as described above can be mechanically cut to finish.
本発明のポスト型人工歯根は、生体硬組織との結合性を
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 post-type artificial tooth root of the present invention preferably has a roughened surface in order to enhance the bondability with a living body hard tissue. As a method for roughening the surface, (1) polishing is not sufficiently performed while sintering is performed.
（２）焼結品をアルミナ、鉄、炭化ケイ素などの微細粒
によりショットブラスト処理する。(2) The sintered product is shot blasted with fine particles of alumina, iron, silicon carbide or the like.
（３）焼結品のガラス質をフッ化硝酸でエッチング処理
する。(3) The glass material of the sintered product is etched with fluorinated nitric acid.
（４）焼結品を機械的に研削する。(4) Mechanically grind the sintered product.
等が挙げられる。Etc.
更に、本発明のポスト型人工歯根の生体硬組織への適合
性を高めるため、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、4CP系の物質をコーティング
する。コーティング操作としては、例えば、アルゴンガ
ス中で酸素ガスを50容量％以下混合してもよく、リン酸
カルシウムのリン酸イオンの減少を補充する目的で、リ
ンの酸化物を共存してもよく、スッパッタリング条件
は、通常、電力100〜200W、ターゲット電圧1.0〜2.5k
V、電極間距離2.5〜4cm、アルゴン圧５〜10×10-2Tor
r、基板温度110〜500℃が好ましく、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スパッタリング法などを採用できる。Further, in order to enhance the compatibility of the post-type artificial tooth root of the present invention with the hard tissue of the living body, calcium phosphate, for example, hydroxyapatite, 3CP, 4CP type substances are coated on the surface. As the coating operation, for example, 50% by volume or less of oxygen gas may be mixed in argon gas, and phosphorus oxide may coexist for the purpose of supplementing the reduction of phosphate ion of calcium phosphate. Ring conditions are usually power 100-200W, target voltage 1.0-2.5k
V, distance between electrodes 2.5-4 cm, argon pressure 5-10 × 10 -2 Tor
r, the substrate temperature is preferably 110 to 500 ° C, the calcium phosphate molecule is physically released, and adheres to the artificial tooth root surface,
A PVD sputtering method for coating can be adopted.
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 dental root of the present invention will be described with reference to the drawings.
第１図は、螺旋状部分を設けた人工歯根の正面図であ
る。第２図は、リング状部分を設けた人工歯根の正面図
である。FIG. 1 is a front view of an artificial tooth root provided with a spiral portion. FIG. 2 is a front view of an artificial tooth root provided with a ring-shaped portion.
第１図に於いて、１は螺旋状部分を設けた人工歯根、２
は螺旋状部、３は螺旋状部先端に設けられた凹部、４は
人工歯を取り付けるための切欠部である。又、第２図に
於いて、５はリング状部分を設けた人工歯根、６はリン
グ状部、７はリング状部先端に設けられた凹部、８は人
工歯を取り付けるための切欠部である。In FIG. 1, 1 is an artificial tooth root provided with a spiral portion, 2
Is a spiral portion, 3 is a concave portion provided at the tip of the spiral portion, and 4 is a notch portion for attaching an artificial tooth. Further, in FIG. 2, 5 is an artificial tooth root provided with a ring-shaped portion, 6 is a ring-shaped portion, 7 is a recessed portion provided at the tip of the ring-shaped portion, and 8 is a notch for attaching an artificial tooth. .
人工歯根１或いは５は、直径が2.5〜6.0mm、長さが10〜
20mmの範囲の管状、円柱状或いは円錐状のものが好まし
い。更に、これらの人工歯根は歯根全体或いは埋入部の
一部乃至全部が中空体であってもよいし、又、充実体で
あってもよい。The artificial tooth root 1 or 5 has a diameter of 2.5 to 6.0 mm and a length of 10 to
A tubular, cylindrical or conical shape having a range of 20 mm is preferable. Further, in these artificial tooth roots, the entire tooth root or a part or the whole of the embedded portion may be a hollow body, or may be a solid body.
人工歯根１では螺旋状部分が１ピッチ以上、人工歯根５
ではリング状部分が１個以上あれば、人工歯根１或いは
５を歯槽骨内へ固定することができるが、固定をより確
実なものとするためそれぞれ螺旋状部分を複数ピッチ、
リング状部分を複数個設けることが好ましい。In artificial tooth root 1, the spiral portion is 1 pitch or more, and artificial tooth root 5
Then, if there is at least one ring-shaped portion, the artificial tooth root 1 or 5 can be fixed in the alveolar bone.
It is preferable to provide a plurality of ring-shaped portions.
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製の人工歯根ではそ
の断面積を小とすることができる。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、歯槽骨に密着固
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。Silicon nitride has high mechanical strength and can withstand complicated stress. Therefore, the artificial dental root made of silicon nitride can have a small cross-sectional area. In addition, since silicon nitride has extremely high corrosion resistance and extremely low chemical activity, it does not cause chemical or physical changes in the living body. Furthermore, although it is inactive in the living body, bone formation is observed around the silicon nitride artificial tooth root, and it is closely fixed to the alveolar bone, and also has a good bond with the gingival part, preventing bacterial infection. It
第１図は、螺旋状部分を設けた人工歯根の断面図であ
り、第２図は、リング状部分を設けた人工歯根の断面図
である。 1:螺旋状部分を設けた人工歯根 2:螺旋状部 3:螺旋状部先端に設けられた凹部 ４、8:切欠部 5:リング状部分を設けた人工歯根 6:リング状部 7:リング状部先端に設けられた凹部FIG. 1 is a sectional view of an artificial dental root provided with a spiral portion, and FIG. 2 is a sectional view of an artificial dental root provided with a ring-shaped portion. 1: Artificial root with spiral part 2: Spiral part 3: Recess at the tip of spiral part 4, 8: Notch 5: Artificial root with ring-shaped part 6: Ring-shaped part 7: Ring Concave part provided at the tip of the groove
Claims (1)
方の先端部に凹部を有する螺旋状又はリング状部分が設
けられ、他の先端部に切欠部が設けられており、窒化ケ
イ素の表面がPVDスパッタリング法によるリン酸カルシ
ウムで被覆されていることを特長とする窒化ケイ素製ポ
スト型人工歯根。1. An implant made of silicon nitride is provided with a spiral or ring-shaped portion having a recess at one end, and a notch is provided at the other end, and the surface of the silicon nitride is PVD. A post-type artificial dental root made of silicon nitride, which is characterized by being coated with calcium phosphate by a sputtering method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63213729A JPH0736827B2 (en) | 1988-08-30 | 1988-08-30 | Post-type artificial tooth root |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63213729A JPH0736827B2 (en) | 1988-08-30 | 1988-08-30 | Post-type artificial tooth root |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0263452A JPH0263452A (en) | 1990-03-02 |
| JPH0736827B2 true JPH0736827B2 (en) | 1995-04-26 |
Family
ID=16644035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63213729A Expired - Lifetime JPH0736827B2 (en) | 1988-08-30 | 1988-08-30 | Post-type artificial tooth root |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0736827B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5945384B2 (en) | 2010-08-04 | 2016-07-05 | オリンパス株式会社 | Wireless image communication system, receiver, transmitter, and program |
-
1988
- 1988-08-30 JP JP63213729A patent/JPH0736827B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5945384B2 (en) | 2010-08-04 | 2016-07-05 | オリンパス株式会社 | Wireless image communication system, receiver, transmitter, and program |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0263452A (en) | 1990-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Pang et al. | Fracture behaviors of maxillary central incisors with flared root canals restored with CAD/CAM integrated glass fiber post-and-core | |
| Cheung | A review of the management of endodontically treated teeth: Post, core and the final restoration | |
| JPS6234566A (en) | Production of bone implant | |
| US3797113A (en) | Dental implant | |
| US4483678A (en) | Dental implant for attachment of artificial tooth | |
| US4957437A (en) | Artificial tooth | |
| Wang et al. | Bond strength: a comparison between chemical coated and mechanical interlock bases of ceramic and metal brackets | |
| US20090007431A1 (en) | Method of manufacturing dental instruments from super-elastic alloys | |
| JP2002531168A (en) | Biological endodontic implant | |
| JPH0332675A (en) | Bioimplanting material and production thereof | |
| KR101448148B1 (en) | Titanium-based Alloy Comprising Titanium-Niobium-Tantalum and Dental Implant Containing the Same | |
| JP2883214B2 (en) | Biological implant material and its manufacturing method | |
| Chung et al. | Effect of sandblasting on the bond strength of the bondable molar tube bracket | |
| JPH0736827B2 (en) | Post-type artificial tooth root | |
| JPH0736828B2 (en) | Blade type artificial tooth root | |
| JPH07328038A (en) | Intraosseous implant | |
| WO2003059187A1 (en) | Osteo-integrated dental implant | |
| JP3287952B2 (en) | Artificial root | |
| JPH0838512A (en) | Artificial tooth root | |
| JPS6234558A (en) | Production of bone implant | |
| JPS6234559A (en) | Production of bone implant | |
| JPS62172944A (en) | Dental implant member | |
| JP2005270529A (en) | Artificial tooth root | |
| WO2020021560A1 (en) | Surface modification of titanium by incorporation of carbon on surface and within for its dental, medical and other applications | |
| JP2005270528A (en) | Artificial tooth root |