JPH0216732Y2 - - Google Patents
Info
- Publication number
- JPH0216732Y2 JPH0216732Y2 JP5208985U JP5208985U JPH0216732Y2 JP H0216732 Y2 JPH0216732 Y2 JP H0216732Y2 JP 5208985 U JP5208985 U JP 5208985U JP 5208985 U JP5208985 U JP 5208985U JP H0216732 Y2 JPH0216732 Y2 JP H0216732Y2
- Authority
- JP
- Japan
- Prior art keywords
- tooth root
- substitute
- jawbone
- titanium
- substitute tooth
- 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
Links
- 239000000463 material Substances 0.000 claims description 23
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 11
- 239000010936 titanium Substances 0.000 claims description 11
- 229910052719 titanium Inorganic materials 0.000 claims description 11
- 229910052586 apatite Inorganic materials 0.000 claims description 7
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[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 VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 claims description 7
- 210000000988 bone and bone Anatomy 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 210000001519 tissue Anatomy 0.000 description 4
- 206010061218 Inflammation Diseases 0.000 description 2
- 230000004054 inflammatory process Effects 0.000 description 2
- 210000004400 mucous membrane Anatomy 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 208000025865 Ulcer Diseases 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 231100000397 ulcer Toxicity 0.000 description 1
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、義歯等を設けるに際して利用する代
用歯根形成用材料に関する。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a substitute tooth root forming material used when providing a denture or the like.
従来、歯が欠損した部位に義歯等を取りつける
に当つて代用歯根を植立してこれに義歯を取りつ
けるか、また隣接した歯に義歯を連結して固定す
る方法が取られ、また、代用歯根に金属歯冠を単
独で固定するなどの方法も行なわれている。
Conventionally, when attaching a denture to a site where a tooth is missing, a substitute tooth root is implanted and the denture is attached to this, or the denture is connected to an adjacent tooth and fixed. Methods such as fixing a metal crown alone have also been used.
このような代用歯根は、生体適合性を有する棒
状の代用歯根材を顎骨に穿つた孔に植立し、固定
するのを待つて義歯等の取りつけ用に供するのが
普通であつた。このように歯の補綴に用いられる
代用歯根材としては、生体適合性、機械的強度や
化学的安定性等の観点からアルミナ系セラミツク
ス、特にサフアイヤで形成された棒状体や、アパ
タイトで形成された棒状体が提案されている。 Conventionally, such substitute tooth roots are used for attaching dentures, etc. after a biocompatible rod-shaped substitute tooth root material is planted in a hole drilled in the jawbone and then fixed. In this way, substitute root materials used for dental prosthesis include rod-shaped bodies made of alumina ceramics, especially sapphire, and apatite made from the viewpoints of biocompatibility, mechanical strength, and chemical stability. A rod-shaped body has been proposed.
アパタイトは特に生体適合性が良好で、骨組織
とゆ合一体化するうえに粘膜組織とも密着し口腔
内で異物の侵入を許さないように傷跡が修復され
るので、材質としては好ましいものの、強度の点
で不安があつて細いねじ部を設けることができ
ず、骨との隙間が埋つて固定されるまで長期間が
必要である。又、サフアイヤは生体組織からの拒
否を受けることがなく、また強度も大きいから先
端部にねじを切つた細い棒状に形成して顎骨内に
ねじ込んで固定することができるので、短時日で
義歯取付が可能となる利点があるに拘らず、顎と
のゆ合は起らず、また粘膜組織との密着が良好で
なく炎症を起し易いという欠点があつた。 Apatite has particularly good biocompatibility, and it is preferable as a material because it not only integrates with bone tissue but also adheres closely to mucosal tissue and prevents the entry of foreign substances into the oral cavity. Due to concerns about this, it is not possible to install thin screws, and it takes a long time for the gap between the bone and the bone to be filled and the bone to be fixed. In addition, Safia is not rejected by living tissue and is strong, so it can be formed into a thin rod with a threaded end and screwed into the jawbone to fix it, making it possible to attach dentures in a short period of time. Despite the possible advantages, there were disadvantages in that it did not fit the jaw and did not adhere well to the mucosal tissue, making it easy to cause inflammation.
以上のような従来の代用歯根材の欠点を相補つ
て、顎骨に対して迅速確実に固定され、また細く
ても咬合力に耐える強度を有する生体親和性の良
好な代用歯根材を提供することが、本考案の目的
である。
It is an object of the present invention to provide a substitute tooth root material that is quickly and reliably fixed to the jawbone, has strength to withstand occlusal force even if it is thin, and has good biocompatibility, making up for the drawbacks of the conventional substitute tooth root materials as described above. , which is the purpose of this invention.
かかる本考案の目的は、軸部と該軸部の先端に
設けられた雄ねじ部とからなりチタン材より形成
された芯体と、該軸部の周りに密着して設けられ
少くとも表面がアパタイト材より形成された筒体
と、該筒体の後端面に密着するように設けられチ
タン材より形成された盤体とから構成された代用
歯根材によつて達成される。
The object of the present invention is to provide a core body made of titanium material, consisting of a shaft portion and a male threaded portion provided at the tip of the shaft portion, and a core body formed in close contact with the shaft portion and having at least a surface made of apatite. This is achieved by a substitute tooth root material composed of a cylindrical body made of a titanium material, and a disc body made of a titanium material and provided in close contact with the rear end surface of the cylindrical body.
本考案の代用歯根材の例を第１図に示す。１は
丸棒状の軸部、２は軸部１の先端に設けられた雄
ねじ部である。軸部１と雄ねじ部２とは金属チタ
ンで一体に形成されて芯体３を構成している。４
はアパタイトで形成された筒体であり、軸部１の
外側に密着嵌合して設けられている。５は金属チ
タンで形成された盤体であり、筒体４の後端面を
覆うようにして密着して設けられている。これら
の各々の間には隙間がなく、また容易に離れるこ
とのないよう一体に結合して代用歯根材が形成さ
れている。６は中心軸位置に残された孔で、義歯
等の基礎部分を嵌着するためのものであるが、必
ずしも設けられる必要はない。 An example of the substitute tooth root material of the present invention is shown in FIG. Reference numeral 1 denotes a round rod-shaped shaft, and reference numeral 2 denotes a male threaded portion provided at the tip of the shaft 1. The shaft portion 1 and the male screw portion 2 are integrally formed of titanium metal and constitute a core body 3. 4
is a cylindrical body made of apatite, and is provided in a tight fit on the outside of the shaft portion 1. Reference numeral 5 denotes a disk body made of titanium metal, and is provided in close contact with the rear end surface of the cylindrical body 4 so as to cover it. There is no gap between each of these, and the substitute tooth root material is formed by being joined together so that they will not easily separate. Reference numeral 6 denotes a hole left at the central axis position, which is used to fit the base part of a denture or the like, but does not necessarily need to be provided.
本考案の代用歯根材を用いて代用歯根を植立す
るには、先ず植立しようとする顎骨位置に、代用
歯根材の外径にほぼ等しい径の孔をあけ、これに
代用歯根材を雄ねじ部２を先として顎骨内に挿
入、ねじ込んで初期固定する。チタンは特に生体
適合性に優れているものではないが、顎骨内で拒
否反応は起らないので、筒部４のアパタイトが顎
骨とゆ合して一体化するまでの間、代用歯根材が
動揺しないように固定すると共に筒部４に対する
補強材としての充分な強度を与えるのに役立つ。
従つて、本考案の代用歯根材は、顎骨内に植立し
てすぐに力がかかつても動くことがなく、筒部４
と顎骨ならびに歯肉部の組織とのゆ合接着が妨げ
られるおそれがない。また、後端面には金属チタ
ンの盤体があり、生体組織はチタンとの親和性が
少ないから端面が生体組織で覆われて潰瘍などを
ひきおこす心配がない。 To implant a substitute tooth root using the substitute tooth root material of the present invention, first, a hole with a diameter approximately equal to the outer diameter of the substitute tooth root material is made in the jawbone position where it is to be implanted, and the substitute tooth root material is inserted into the hole with a male screw thread. Insert into the jawbone with part 2 first and screw it in for initial fixation. Although titanium is not particularly biocompatible, it does not cause a rejection reaction within the jawbone, so the substitute tooth root material will not oscillate until the apatite in the cylindrical portion 4 is integrated with the jawbone. This serves to fix the cylindrical portion 4 so that it does not occur and to provide sufficient strength as a reinforcing material to the cylindrical portion 4.
Therefore, the substitute tooth root material of the present invention does not move even when force is applied immediately after being implanted in the jawbone, and the cylindrical portion 4
There is no risk that the bonding between the jawbone and the gingival tissue will be disturbed. Furthermore, the rear end face has a disc made of metallic titanium, and since living tissue has little affinity with titanium, there is no fear that the end face will be covered with living tissue and cause an ulcer.
本考案の代用歯根材は、生体適合性の優れたア
パタイトの筒部を金属で補強してあり、また、強
度の高いチタンの雄ねじ部を有しているので、顎
骨内に植立後短時日で義歯の装着使用が可能とな
つた。また更に顎骨の小さい者にも適用できる小
型で強い代用歯根材で、歯肉部に炎症等が発生す
るおそれの少いものを実現したものである。
The substitute tooth root material of the present invention has a cylindrical part made of apatite, which has excellent biocompatibility, reinforced with metal, and has a male screw part made of high-strength titanium, so it can be used within a short period of time after being implanted in the jawbone. It is now possible to wear dentures. Moreover, the present invention is a compact and strong substitute tooth root material that can be used even for people with small jawbones, and is less likely to cause inflammation in the gingival region.
第１図は本考案に係る代用歯根材の端面ａおよ
び側断面ｂを示す図である。
FIG. 1 is a diagram showing an end surface a and a side cross section b of a substitute tooth root material according to the present invention.
Claims (1)
らなりチタン材より形成された芯体と、該軸部の
周りに密着して設けられ少くとも表面がアパタイ
ト材より形成された筒体と、該筒体の後端面に密
着するように設けられチタン材より形成された盤
体とから構成された代用歯根材。 A core body made of a titanium material and consisting of a shaft part and a male threaded part provided at the tip of the shaft part, and a cylindrical body provided in close contact around the shaft part and having at least a surface made of an apatite material. and a disk body formed of a titanium material and provided in close contact with the rear end surface of the cylindrical body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5208985U JPH0216732Y2 (en) | 1985-04-10 | 1985-04-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5208985U JPH0216732Y2 (en) | 1985-04-10 | 1985-04-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61168805U JPS61168805U (en) | 1986-10-20 |
| JPH0216732Y2 true JPH0216732Y2 (en) | 1990-05-09 |
Family
ID=30571724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5208985U Expired JPH0216732Y2 (en) | 1985-04-10 | 1985-04-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0216732Y2 (en) |
-
1985
- 1985-04-10 JP JP5208985U patent/JPH0216732Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61168805U (en) | 1986-10-20 |
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