JPH1085236A - Dental artificial tooth root - Google Patents

Dental artificial tooth root

Info

Publication number
JPH1085236A
JPH1085236A JP8279849A JP27984996A JPH1085236A JP H1085236 A JPH1085236 A JP H1085236A JP 8279849 A JP8279849 A JP 8279849A JP 27984996 A JP27984996 A JP 27984996A JP H1085236 A JPH1085236 A JP H1085236A
Authority
JP
Japan
Prior art keywords
artificial tooth
tooth root
larger size
replaced
little
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.)
Pending
Application number
JP8279849A
Other languages
Japanese (ja)
Inventor
Hisao Shimizu
央雄 清水
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP8279849A priority Critical patent/JPH1085236A/en
Publication of JPH1085236A publication Critical patent/JPH1085236A/en
Pending legal-status Critical Current

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  • Dental Prosthetics (AREA)

Abstract

PROBLEM TO BE SOLVED: To dispense with the boring of a bone when replacement of an artificial tooth root is required because of its looseness, and perform the replacement in a short time by preparing artificial tooth roots having a number of diameters changed little by little. SOLUTION: Dental artificial tooth roots having a number of diameters (thicknesses) changed little by little are prepared. When an artificial tooth root is too lose to be fixed when the pyramid is bored to insert the artificial tooth root, it is immediately replaced by an artificial tooth root of a larger size. Further, it is similarly replaced by a larger size when loosened after operation. When it is still loose, it is replaced by a further larger size. Thus, the most suitable artificial tooth root can be replaced without boring again. When an edge part is provided on the tip of a screw type to impart self-tapping function, a slightly larger size cutting can be performed.

Description

【発明の詳細な説明】 【0001】 【産業上の利用分野】この発明は、多数の歯牙を失った
口腔内において、咀嚼機能等の回復を図るため、かつて
歯牙の存在していた顎骨に植えて、義歯(人工歯冠)を
支える物(人工歯根)である。 【0002】 【従来の技術】虫歯や歯周病等により抜歯をした際、欠
損部が小さい場合は固定性架橋義歯(さし歯・ブリッ
ジ)による補綴が可能である。一方、抜歯部位が多数の
場合は可撤性有床義歯(取り外し式の入れ歯)による補
綴が通例である。しかし、取り外し式の入れ歯には、違
和感や審美上の欠点、固い物が噛めない等、多くの問題
があり、多数歯欠損の患者の大多数は取り外し式の入れ
歯では不自由や苦痛を感じている。この問題を解決する
のが人工歯根である。人工歯根を欠損部顎骨に植えて、
その上に人工歯冠を配置すれば、あたかも自分の歯があ
るかの如くの感覚であり、或る程度固いもの咀嚼がで
き、審美的にも大変良好でである。もっとも、解剖学的
に人工歯根を植えることができない場合があったり、健
康保険が効かない等の制約があるものの、多くの患者に
とって取り外し式入れ歯からの開放は大きな福音であ
る。人工歯根には、スクリュウ型・ブレード型・シリン
ダー型・骨膜下型等色々な形態があり、また、材質も、
人工サファイヤ・純チタン・アパタイト溶着チタン等、
様々な物がある。 【0003】 【発明が解決しようとする課題】ところが上記の物も、
次のような欠点がある。 (イ)スクリュウ型・ブレード型・シリンダー型等の顎
骨内埋め込み型では、規格の適合する専用工具で骨に穴
あけしても、骨が柔らかい場合、挿入した人工歯根が骨
と固着せず、回転や動揺が見られることがある。この場
合は人工歯根をそれよりも大きいサイズの物があれば、
再度穴あけをし、入れ直すか、または、付近に新たな場
所を求めて再植立することになる。しかし、やり直して
も同じく骨と固着せず、回転や動揺が見られ、手術を断
念することもあるし、また、無理にそのままの状態で補
綴をしたなら、早期に不具合が発生することが多い。 (ロ)上記のような手術時の問題はなくても、その次に
行う上部構造(人工歯冠)を製作するための印象を採る
時点で人工歯根が緩んでいて、回転や動揺が見られるこ
とがある。この場合、(イ)と同様に改めて骨に穴あけ
をし、入れ直しをするため、患者にとって負担が大き
い。 【0004】 【課題を解決するための手段】小刻みに多数の直径(厚
み)の人工歯根を揃える。 【0005】 【実施例】顎骨に穴あけをし、人工歯根を挿入した際、
緩くて固着しない場合はすぐさま、それより一回り大き
いサイズの人工歯根に入れ替える。また、手術後に緩ん
だ場合も同様に一回り大きいサイズに入れ替える。 そ
れでもなお緩い場合はさらに一回り大きいサイズに入れ
替える。従来の製品は、たとえばスクリュウ型ではA社
の人工歯根の直径は、3mm・4mm・5mmであり、
もしも3mmを挿入して緩い場合、次に太い4mmでは
太すぎて、そのままでは挿入できず、再度、骨に穴あけ
をしなくてはならないし、4mmを挿入しても再び緩い
可能性がある。同様にB社は3.3mm・4mm・4.
75mmであり、C社は3.75mm・5.25mmと
なっており、いずれも使い勝手が悪い。3mm・3.4
mm・3.7mm・4mm・4.3mm・4.6mmの
ように小刻みに多数の直径(ブレード型では厚み)を揃
えれば、緩い場合、再度穴あけすることなしにもっとも
適合する人工歯根に交換することができる。スクリュウ
型で、先端に刃部を設けセルフタッピング機能を付与す
れば、やや大きめのサイズ刻みも可能だが、シリンダー
型では逆により小刻みにする必要がある。いずれにして
も、コスト増の問題はあるが小刻みであるほど使い勝手
が良い。 【0006】 【発明の効果】人工歯根が緩くて入れ替える際、再度骨
に穴あけをする必要がないため短時間ででき患者の負担
が小さい。また、強固な固着が得られるため、従来の人
工歯根に比べ、長期間に渡って安定して機能する。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for recovering a mastication function and the like in an oral cavity which has lost many teeth, in order to restore the mastication function, etc., to a jaw bone where teeth existed. It is an object (artificial tooth root) that supports a denture (artificial crown). 2. Description of the Related Art When a tooth is extracted due to tooth decay or periodontal disease, if the defect is small, it is possible to perform prosthesis using a fixed bridge denture (incisor bridge). On the other hand, when there are many tooth extraction sites, a prosthesis using a removable denture (removable denture) is usually used. However, removable dentures have many problems, such as discomfort, aesthetic defects, and the inability to bite hard objects.The majority of patients with a large number of missing teeth feel inconvenience or pain with removable dentures. I have. An artificial tooth root solves this problem. I planted the artificial root in the jawbone of the defect,
If an artificial crown is placed on top of it, it feels as if one's own teeth are present, and it is possible to chew to a certain degree, which is very good aesthetically. However, although there are restrictions such as the fact that artificial roots cannot be anatomically planted or that health insurance is not effective, opening up from removable dentures is a great gospel for many patients. There are various types of artificial tooth roots such as screw type, blade type, cylinder type, subperiosteal type, and the material is also
Artificial sapphire, pure titanium, apatite deposited titanium, etc.
There are various things. [0003] However, the above-mentioned object also
It has the following disadvantages. (A) In the implant type such as screw type, blade type, cylinder type, etc., if the bone is soft, even if the bone is soft, the inserted artificial tooth root does not adhere to the bone even if the bone is softened, and it rotates. And sway may be seen. In this case, if you have an artificial tooth larger than that,
Drill and re-insert, or replant to find a new location nearby. However, even if you try again, the bones do not adhere to the bone, rotation or sway is seen, the surgery may be abandoned, and if the prosthesis is forcibly replaced, problems often occur early . (B) Even if there is no problem at the time of surgery as described above, the artificial tooth root is loose at the time of taking an impression for manufacturing the next superstructure (artificial crown), and rotation and sway are seen. Sometimes. In this case, the bone is re-drilled and re-inserted as in (a), which is a heavy burden on the patient. [0004] An artificial tooth root having a large number of diameters (thickness) is aligned in small increments. [0005] When drilling the jawbone and inserting an artificial tooth root,
If it is loose and does not stick, immediately replace it with an artificial root one size larger than that. Also, if it becomes loose after surgery, it is similarly replaced with a slightly larger size. If it is still loose, replace it with a slightly larger size. Conventional products, for example, in the screw type, the diameter of the artificial root of Company A is 3mm / 4mm / 5mm,
If 3 mm is inserted and it is loose, the next 4 mm is too thick and cannot be inserted as it is, and it is necessary to make a hole in the bone again, and even if 4 mm is inserted, it may be loose again. Similarly, Company B has 3.3mm / 4mm / 4.
It is 75 mm, and company C has 3.75 mm and 5.25 mm, which are both inconvenient. 3mm / 3.4
If a large number of diameters (thickness in blade type) are aligned in small increments such as mm, 3.7 mm, 4 mm, 4.3 mm, 4.6 mm, if loose, replace with the most suitable artificial root without drilling again. be able to. If the screw type is provided with a self-tapping function by providing a blade at the tip, a slightly larger size can be cut. However, the cylinder type needs to be made smaller. In any case, there is a problem of cost increase, but the smaller the size, the better the usability. [0008] When the artificial tooth root is replaced because it is loose, there is no need to re-drill the bone, so that it can be done in a short time and the burden on the patient is small. In addition, since a firm fixation is obtained, it functions more stably for a long period of time as compared with a conventional artificial tooth root.

Claims (1)

【特許請求の範囲】 【請求項1 】 小刻みに多数の直径(厚み)を揃えた
歯科用人工歯根
Claims: 1. A dental artificial root having a plurality of diameters (thicknesses) aligned in small increments.
JP8279849A 1996-09-13 1996-09-13 Dental artificial tooth root Pending JPH1085236A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8279849A JPH1085236A (en) 1996-09-13 1996-09-13 Dental artificial tooth root

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8279849A JPH1085236A (en) 1996-09-13 1996-09-13 Dental artificial tooth root

Publications (1)

Publication Number Publication Date
JPH1085236A true JPH1085236A (en) 1998-04-07

Family

ID=17616802

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8279849A Pending JPH1085236A (en) 1996-09-13 1996-09-13 Dental artificial tooth root

Country Status (1)

Country Link
JP (1) JPH1085236A (en)

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