JPH0780003A - Dental prosthetic appliance maintaining device - Google Patents
Dental prosthetic appliance maintaining deviceInfo
- Publication number
- JPH0780003A JPH0780003A JP5253676A JP25367693A JPH0780003A JP H0780003 A JPH0780003 A JP H0780003A JP 5253676 A JP5253676 A JP 5253676A JP 25367693 A JP25367693 A JP 25367693A JP H0780003 A JPH0780003 A JP H0780003A
- Authority
- JP
- Japan
- Prior art keywords
- abutment
- implant fixture
- bolt
- head
- prosthesis
- 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
- 239000007943 implant Substances 0.000 claims abstract description 62
- 230000002093 peripheral effect Effects 0.000 claims abstract description 11
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000010936 titanium Substances 0.000 claims abstract description 9
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 9
- 238000012423 maintenance Methods 0.000 claims description 19
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 14
- 210000000988 bone and bone Anatomy 0.000 description 13
- 210000003128 head Anatomy 0.000 description 10
- 210000000214 mouth Anatomy 0.000 description 9
- 239000004053 dental implant Substances 0.000 description 7
- 229910052573 porcelain Inorganic materials 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 208000006386 Bone Resorption Diseases 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000024279 bone resorption Effects 0.000 description 2
- 238000000586 desensitisation Methods 0.000 description 2
- 210000004195 gingiva Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 210000004400 mucous membrane Anatomy 0.000 description 2
- 238000010883 osseointegration Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 208000002354 Edentulous Jaw Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000003479 dental cement Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 108091005708 gustatory receptors Proteins 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 210000002200 mouth mucosa Anatomy 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Dental Prosthetics (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、欠如歯部の骨内に形成
された埋入孔内に埋入して固定される通常歯科インプラ
ントと略称されている歯科用補綴物維持装置の改良に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a dental prosthesis maintenance device, which is abbreviated as a normal dental implant, which is fixed by being embedded in an implantation hole formed in the bone of a missing tooth portion. It is a thing.
【０００２】[0002]
【従来の技術】近年、欠如歯部における歯科補綴法とし
ては、ブリッジによる方法と、床義歯による方法とが一
般に行われてきた。しかしながら、ブリッジによる方法
は、欠如歯部の両側の健全な天然歯を切削して支台と
し、この支台に係合する金属体に欠如歯部に位置する歯
科用補綴物を固定する方法であるので、健全な天然歯を
切削しなければならないばかりか、欠如歯部に位置する
歯科用補綴物部分には咬合圧が直接には加わらないため
に当該部位で骨吸収を引き起こすという欠点があった。
また、床義歯による方法は、合成樹脂等で作成した義歯
床に義歯を固定したものを歯科用補綴物とする方法であ
るが、この方法では歯科用補綴物に作用する咬合力を残
存天然歯及び／又は口腔粘膜によって負担させるもので
あるので、歯科用補綴物使用中に違和感があることや、
口腔粘膜組織中に散在する味覚の受容器を義歯床が覆っ
てしまうことによる味覚の鈍麻が生じることがあり、更
には長期間の使用によって顎堤の吸収を引き起こすとい
う重大な欠点があった。2. Description of the Related Art In recent years, as a dental prosthesis method for a missing tooth portion, a method using a bridge and a method using a denture have been generally used. However, the bridge method is a method of cutting healthy natural teeth on both sides of the missing tooth into an abutment, and fixing the dental prosthesis located in the missing tooth to a metal body that engages with this abutment. Therefore, not only must a healthy natural tooth be cut, but the dental prosthesis located at the missing tooth part is not directly applied with occlusal pressure, which causes bone resorption at that part. It was
Further, the method using a denture is a method in which a denture fixed to a denture base made of synthetic resin or the like is used as a dental prosthesis. And / or the oral mucous membrane causes the discomfort, so that there is a feeling of discomfort during use of the dental prosthesis,
The denture base may cover the taste receptors scattered in the oral mucosal tissue, resulting in desensitization of the taste, and there is a serious drawback that absorption of the ridge is caused by long-term use.
【０００３】そこでこれらの欠点を解消する治療方法と
して、欠如歯部の骨内に形成した埋入孔内に歯科用補綴
物の維持安定装置となるインプラントフィクスチャーを
埋入して天然歯における歯根の機能を代行せしめ、この
インプラントフィクスチャーに歯科用補綴物の固定装置
を装着して歯科用補綴物維持装置とし、この歯科用補綴
物の固定装置に歯科用補綴物を固着する歯科インプラン
トの技術が開発され、実施されるようになってきてい
る。Therefore, as a treatment method for eliminating these drawbacks, an implant fixture, which is a device for maintaining and stabilizing a dental prosthesis, is embedded in an embedding hole formed in the bone of a missing tooth portion, and a root of a natural tooth is rooted. The technology of a dental implant in which a dental prosthesis fixing device is attached to the implant fixture to form a dental prosthesis maintenance device, and the dental prosthesis is fixed to the dental prosthesis fixing device. Are being developed and implemented.
【０００４】このような歯科インプラントによる治療方
法を実施すると、口腔粘膜を覆うことなく歯科用補綴物
を固定することができるので、歯科用補綴物装着時の違
和感や味覚の鈍麻が生じることがなく、天然歯に似た使
用感が得られ、更に顎骨に適度な咬合力が付与されるた
めにインプラントフィクスチャーが埋入されていない場
合に想定される骨吸収を最小限に抑制できるという利点
があるため、この治療方法は急速な発展を遂げて単独歯
欠損，２歯以上の局部欠損及び無歯顎（全歯欠損）に至
るまでに適用できるようになりつつある。By carrying out such a treatment method using a dental implant, the dental prosthesis can be fixed without covering the oral mucosa, so that there is no discomfort when the dental prosthesis is attached and no desensitization of taste. , It is possible to obtain a feeling of use similar to that of natural teeth, and further, to provide an appropriate occlusal force to the jaw bone, which has the advantage of minimizing bone resorption that would be expected when the implant fixture is not embedded. For this reason, this treatment method is rapidly developing and can be applied to a single tooth defect, a local defect of two or more teeth, and an edentulous jaw (total tooth defect).
【０００５】この歯科インプラントによる治療方法は、
欠如歯部の骨内にインプラントフィクスチャーが埋入さ
れる埋入孔を形成しこの埋入孔内にインプラントフィク
スチャーを埋入して後にその埋入孔の周囲歯肉を縫合す
るという外科手術が必要であるので、その埋入孔内に埋
入されるインプラントフィクスチャーは無菌的，非汚染
的な条件を満たしており、しかも埋入孔内に埋入された
際に顎骨に対して良好な骨結合性を有し且つ良好な生体
親和性を有していることが必要である。The method of treatment with this dental implant is
A surgical operation of forming an embedding hole in which the implant fixture is embedded in the bone of the missing tooth, embedding the implant fixture in the embedding hole, and then suturing the gingiva around the embedding hole is performed. Since it is necessary, the implant fixture to be implanted in the implant hole satisfies aseptic and non-contaminating conditions, and when it is implanted in the implant hole, it is good for the jawbone. It is necessary to have bone binding properties and good biocompatibility.
【０００６】そして、通常の歯科インプラントによる治
療方法においては、欠如歯部の顎骨内に形成された埋入
孔内に埋入されたインプラントフィクスチャーが欠如歯
部の顎骨に充分に結合し且つ埋入孔を形成したことによ
る手術部分が治癒したら、そのインプラントフィクスチ
ャーが埋入された口腔内側の歯肉部分を再度切開してイ
ンプラントフィクスチャーの口腔内側部分に歯科用補綴
物の固定装置の取付部分となるアバットメントを固定す
る２回法が多く採用されており、このアバットメントは
インプラントフィクスチャーに対して回転しないように
装着されているばかりでなく、その口腔内側部分に取り
付けられる歯科用補綴物の固定装置が単独歯用の固定装
置である場合にはその固定装置がインプラントフィクス
チャーに対して回転したのでは歯科用補綴物を欠如歯部
に正確に位置せしめられない現象が生じるため歯科用補
綴物の固定装置を回転しないように維持する部分がその
口腔内側部分に設けられている。[0006] In the conventional treatment method using a dental implant, the implant fixture embedded in the embedding hole formed in the jaw bone of the absent tooth part is sufficiently bonded to and embedded in the jaw bone of the absent tooth part. When the surgical part due to the formation of the entry hole is healed, the gingival part inside the oral cavity where the implant fixture is embedded is cut again, and the fixing part of the dental prosthesis fixing device is attached to the inside part of the oral cavity of the implant fixture. The two-step method of fixing the abutment that is used is often adopted. This abutment is not only mounted so as not to rotate with respect to the implant fixture, but also a dental prosthesis that is attached to the inner part of the oral cavity. If the fixing device of the device is a fixing device for a single tooth, the fixing device is rotated with respect to the implant fixture. Than with the parts to maintain so as not to rotate the fixing device of a dental prosthesis for a phenomenon that is not allowed to accurately position a dental prosthesis to the defective tooth occurs is provided at the oral cavity inner side portion.
【０００７】しかしながら、欠如歯が連続した複数歯
（全歯欠如を含む）である場合には、２個以上の歯科用
補綴物の固定装置に２歯以上の歯科用補綴物を固定して
いる。このような２個以上の歯科用補綴物の固定装置を
持つ２歯以上の歯科用補綴物をアバットメントに固定す
る場合、２個以上のインプラントフィクスチャーが欠如
歯部の骨内に完全に平行な状態に埋入されることが非常
に少ないため、もし２個以上の歯科用補綴物の固定装置
が単独歯用の固定装置の如くインプラントフィクスチャ
ーに対して回転しないように維持する部分を設けられて
いると、２個以上の歯科用補綴物の固定装置を同時にア
バットメントの口腔内側部分に装着しようとしても、そ
の固定装置の回転しないように維持する部分がアバット
メントの口腔内側部分に設けられている固定装置を回転
しないように維持する部分に当接して装着が不可能とな
る現象が生じる。However, when the missing tooth is a plurality of continuous teeth (including missing teeth), two or more dental prostheses are fixed to a fixing device for two or more dental prostheses. . When fixing a dental prosthesis with two or more teeth having such a fixing device for two or more dental prostheses to an abutment, two or more implant fixtures are completely parallel to the bone of the missing tooth. Since it is very rare to be embedded in such a state, if there is more than one dental prosthesis fixing device, a part is provided to keep it from rotating with respect to the implant fixture like a single tooth fixing device. If the fixing device for two or more dental prostheses is mounted on the inner part of the oral cavity of the abutment at the same time, a part of the inner part of the abutment that keeps the fixing device from rotating is provided. There occurs a phenomenon in which the fixing device comes into contact with a portion that keeps the fixing device from rotating so that the fixing device cannot be attached.
【０００８】その結果、単独歯用として使用されるアバ
ットメント及び歯科用補綴物の固定装置と、複数歯（全
歯を含む）用として使用されるアバットメント及び歯科
用補綴物の固定装置とは従来は全く別異の構造に製造さ
れていたため、その部品点数が多くなり、製品管理が面
倒であるばかりでなく、製品単価も上昇して好ましくな
い欠点があった。As a result, the fixing device for an abutment and a dental prosthesis used for a single tooth and the fixing device for an abutment and a dental prosthesis used for a plurality of teeth (including all teeth). In the past, since the structure was manufactured to have a completely different structure, the number of parts was increased, and not only was product management troublesome, but the product unit price also increased, which was an undesirable disadvantage.
【０００９】[0009]
【発明が解決しようとする課題】本発明は、上記した如
き欠点を解消し、単独歯用と複数歯（全歯を含む）用と
に使用されるアバットメントを同一のものを使用できる
ようにした歯科用補綴物維持装置を提供することを課題
とする。DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned drawbacks and enables the same abutment to be used for a single tooth and a plurality of teeth (including all teeth). An object of the present invention is to provide a dental prosthesis maintenance device.
【００１０】[0010]
【課題を解決するための手段】本発明者らは上記課題を
解決すべく鋭意研究の結果、歯科用補綴物維持装置の構
造を、先端が略半球状でそれに続く部分が略円柱状をな
し該略円柱状部の端部に角筒状部が設けられており該角
筒状部を貫通して該略円柱状部に至るメネジが螺設され
ているチタン製のインプラントフィクスチャー本体と、
該インプラントフィクスチャー本体側が該インプラント
フィクスチャー本体の略円柱状部端の外径と同一外径を
有し該インプラントフィクスチャー本体から離れるに従
ってその外径は大きくなる截頭円錐形を成しており且つ
該インプラントフィクスチャー本体側には前記角筒状部
が嵌入される角筒状凹部がまたその反対側には少なくと
も軸心に対して直角な外周側平面と中心側の角筒状部と
が設けられていて中央にボルト穴が貫通穿設されている
チタン製のアバットメントと、頭部にメネジが螺設され
ており該アバットメントのボルト穴を貫通して前記イン
プラントフィクスチャー本体のメネジに螺着されるオネ
ジが螺設されている中間ボルトと、一端に前記アバット
メントの外周側平面に当接される基部を有し該アバット
メントを前記インプラントフィクスチャー本体に固定し
た中間ボルトの頭部を内部に収納する空間部が形成され
ており他端中央に該空間部に連通するボルト穴が設けら
れておりその外形状が該基部の外径が最も大きく途中に
外径が小さくなる凹部が設けられている補綴物形成用シ
リンダと、該補綴物形成用シリンダのボルト穴に挿通さ
れて中間ボルトの頭部のメネジに螺着される固定ボルト
から成り、該補綴物形成用シリンダが前記アバットメン
トの角筒状部が嵌入される角筒状凹部が形成されている
空間部を形成されている単独歯用のものと、前記アバッ
トメントの角筒状部と前記中間ボルトの頭部とに全く接
触しない複数歯用のものとから成る構造とすれば、欠如
歯部の骨内に形成された埋入孔内に埋入されるインプラ
ントフィクスチャー本体及びその口腔内側に固定される
アバットメントはチタン製であるので顎骨に対して良好
な骨結合性を有し且つ良好な生体親和性を有している条
件を満たさせることができ、単独歯用と複数歯（全歯を
含む）用とに使用されるアバットメントを同一のものを
使用できるようになって部品点数を減少させて製品管理
を容易にし且つ製品単価も廉価とすることができること
を究明したのである。As a result of intensive studies to solve the above-mentioned problems, the present inventors have found that the structure of a dental prosthesis maintenance device has a substantially hemispherical tip and a substantially cylindrical shape at the subsequent part. An implant fixture main body made of titanium, in which a rectangular tubular portion is provided at an end of the substantially cylindrical portion, and a female screw reaching the approximately cylindrical portion is screwed through the angular tubular portion,
The implant fixture main body side has the same outer diameter as the outer diameter of the end of the substantially cylindrical portion of the implant fixture main body, and the outer diameter increases as it moves away from the implant fixture main body, forming a truncated cone shape. And, on the implant fixture main body side, there is a square tubular concave portion into which the square tubular portion is fitted, and on the opposite side thereof, there are at least an outer peripheral side plane perpendicular to the axis and a square tubular portion on the center side. A titanium abutment that is provided with a bolt hole formed in the center through it, and a female screw is screwed on the head and penetrates the bolt hole of the abutment to the female screw of the implant fixture body. The abutment has an intermediate bolt on which a male screw to be screwed is screwed, and a base portion at one end that abuts on the outer peripheral side plane of the abutment. A space for accommodating the head of the intermediate bolt fixed to the runt fixture body is formed inside, and a bolt hole communicating with the space is provided at the center of the other end, and the outer shape is the outer diameter of the base. And a fixing bolt to be inserted into a bolt hole of the prosthesis forming cylinder and screwed into a female screw of the head of the intermediate bolt. And a corner of the abutment in which the prosthesis forming cylinder is for a single tooth in which a space portion is formed in which a square tubular concave portion into which the square tubular portion of the abutment is fitted is formed. An implant fixture to be embedded in the embedding hole formed in the bone of the missing tooth portion, if the structure is made up of a plurality of teeth that does not come into contact with the head portion of the intermediate bolt at all. Body and its mouth Since the abutment fixed to the inside is made of titanium, it can satisfy the conditions that it has good osseointegration to the jaw bone and good biocompatibility. Since it is possible to use the same abutment used for (including all teeth), the number of parts can be reduced, product management can be facilitated, and the product unit price can be reduced. is there.
【００１１】以下、図面により本発明に係る歯科用補綴
物維持装置について詳細に説明する。図１は本発明に係
る歯科用補綴物維持装置を分解した状態を示す斜視図、
図２は本発明に係る単独歯用の歯科用補綴物維持装置の
組み立てられた状態における断面図、図３は本発明に係
る複数歯用の歯科用補綴物維持装置の組み立てられた状
態における断面図である。The dental prosthesis maintenance device according to the present invention will be described in detail below with reference to the drawings. 1 is a perspective view showing a state in which a dental prosthesis maintenance device according to the present invention is disassembled,
2 is a sectional view of the dental prosthesis maintenance device for a single tooth according to the present invention in an assembled state, and FIG. 3 is a sectional view of a dental prosthesis maintenance device for a plurality of teeth according to the present invention in an assembled state. It is a figure.
【００１２】図面中、１は先端が略半球状でそれに続く
部分が略円柱状をなしその略円柱状部の端部に角筒状部
1aが設けられており、その角筒状部1aを貫通して前記略
円柱状部に至るメネジ1bが螺設されているチタン製のイ
ンプラントフィクスチャー本体である。このインプラン
トフィクスチャー本体１としては、その略円柱状部の側
面に図１に示す如くその軸方向に平行な溝が複数形成さ
れていたり、また先端の略半球状部とそれに続く略円柱
状部の外面が欠如歯部の骨内に形成された埋入孔の骨材
との接触面積を増大させるとように梨地状に形成されて
いたりすることが好ましい。In the drawings, reference numeral 1 denotes a substantially hemispherical tip, and a portion following the tip has a substantially cylindrical shape, and an end portion of the substantially cylindrical portion has a square tubular portion.
The implant fixture main body is made of titanium and is provided with a female screw thread 1b that penetrates the rectangular tubular portion 1a and reaches the substantially cylindrical portion. In this implant fixture body 1, a plurality of grooves parallel to the axial direction are formed on the side surface of the substantially cylindrical portion as shown in FIG. 1, and a substantially hemispherical portion at the tip and a substantially cylindrical portion following the groove are formed. It is preferable that the outer surface is formed in a satin-like shape so as to increase the contact area of the embedding hole formed in the bone of the missing tooth portion with the aggregate.
【００１３】２はインプラントフィクスチャー本体１側
がインプラントフィクスチャー本体１の略円柱状部端の
外径と同一外径を有しインプラントフィクスチャー本体
１から離れるに従ってその外径は大きくなる截頭円錐形
を成しており且つインプラントフィクスチャー本体１側
には前記角筒状部1aが嵌入される角筒状凹部2aがまたそ
の反対側には少なくとも軸心に対して直角な外周側平面
2bと中心側の角筒状部2cとが設けられていて、中央にボ
ルト穴2dが貫通穿設されているチタン製のアバットメン
トである。Reference numeral 2 is a frusto-conical shape in which the implant fixture body 1 side has the same outer diameter as the outer diameter of the end of the substantially cylindrical portion of the implant fixture body 1, and the outer diameter increases as the distance from the implant fixture body 1 increases. And a rectangular cylindrical concave portion 2a into which the rectangular cylindrical portion 1a is fitted is formed on the implant fixture main body 1 side, and on the opposite side, at least an outer peripheral side plane perpendicular to the axis
This is an abutment made of titanium, which is provided with a rectangular tubular portion 2c on the center side and a bolt hole 2d formed in the center thereof.
【００１４】３は頭部にメネジ3bが螺設されておりこの
頭部に続いて前記アバットメント２のボルト穴2dを貫通
して前記インプラントフィクスチャー本体１のメネジ1b
に螺着されるオネジ3aが螺設されている中間ボルトであ
る。A female screw 3b is screwed on the head 3 of the implant fixture 3, and the female screw 1b of the implant fixture body 1 is passed through the bolt hole 2d of the abutment 2 following the head.
It is an intermediate bolt having a male screw 3a screwed to the screw.
【００１５】４は一端に前記アバットメント２の外周側
平面2bに当接される基部4bを有しアバットメント２の角
筒状部2cとアバットメント２を前記インプラントフィク
スチャー本体１に固定した中間ボルト３の頭部とを内部
に収納する空間部4aが形成されており他端中央にこの空
間部4aに連通するボルト穴4cが設けられておりその外形
状が前記基部4bの外径が最も大きく途中に外径が小さく
なる凹部4dが設けられている補綴物形成用シリンダであ
り、前記基部4bは截頭円錐形状のフランジ部を成してお
りこの基部4bに続く外面に段差部が形成されていること
がその外周に歯科用補綴物の基体となる金属を鋳接した
後に築盛する陶材の築盛開始位置の目安となるので好ま
しい。この補綴物形成用シリンダ４としては、図２に示
す如くその空間部4aに前記アバットメント２の角筒状部
2cが嵌入される角筒状凹部4aaが形成されている単独歯
用のものと、図３に示す如くその空間部4aが前記アバッ
トメント２の角筒状部2cと前記中間ボルト３の頭部とに
全く接触しない複数歯用のものとがある。Reference numeral 4 denotes a base portion 4b which is in contact with the outer peripheral side flat surface 2b of the abutment 2 at one end, and an intermediate tubular portion 2c of the abutment 2 and an abutment 2 fixed to the implant fixture body 1. A space 4a for accommodating the head of the bolt 3 therein is formed, and a bolt hole 4c communicating with this space 4a is provided at the center of the other end. The outer shape of the bolt 4c is the outer diameter of the base 4b. A prosthesis forming cylinder having a large concave portion 4d having a small outer diameter, wherein the base portion 4b forms a frustoconical flange portion, and a step portion is formed on the outer surface following the base portion 4b. This is preferable because it serves as a guide for the starting position of the porcelain to be built up after the metal serving as the base of the dental prosthesis is cast and joined to the outer periphery thereof. As shown in FIG. 2, the prosthesis forming cylinder 4 has a hollow cylindrical portion of the abutment 2 in a space 4a thereof.
For a single tooth in which a rectangular tubular concave portion 4aa into which the 2c is fitted is formed, and as shown in FIG. 3, the space portion 4a has the rectangular tubular portion 2c of the abutment 2 and the head portion of the intermediate bolt 3. Some have multiple teeth that do not contact at all.
【００１６】５は補綴物形成用シリンダ４のボルト穴4c
に挿通されて中間ボルト３の頭部のメネジ3bに螺着され
る固定ボルトである。5 is a bolt hole 4c of the prosthesis forming cylinder 4
It is a fixing bolt that is inserted into and is screwed to the female screw 3b of the head of the intermediate bolt 3.
【００１７】[0017]
【作用】かかる構造の本発明に係る歯科用補綴物維持装
置を使用して通常歯科用インプラントと略称されている
歯科用補綴物維持装置を形成するには、先ず欠如歯部の
骨内に形成した埋入孔内に歯科用補綴物の維持安定装置
となるインプラントフィクスチャー１を略半球状の先端
側から埋入させて骨とインプラントフィクスチャー１と
の結合が確認されたら、前記した２回法ではインプラン
トフィクスチャー１が埋入された口腔内側の歯肉部分を
再度切開してインプラントフィクスチャー１の口腔内側
の略円柱状部の端部に当接し角筒状部1aを貫通して略円
柱状部に至るメネジ1bに螺着されているカバー（図示無
し）をインプラントフィクスチャー本体１から取り外
し、このカバーが取り外されたインプラントフィクスチ
ャー本体１の部分に歯科用補綴物の固定装置の取付部分
となるアバットメント２を固定してこの切開部分が完全
に治癒するまで待つ。このインプラントフィクスチャー
本体１へのアバットメント２の固定は、インプラントフ
ィクスチャー本体１の略円柱状部の端部に角筒状部1aが
角筒状凹部2a内に嵌入されるようにアバットメント２を
位置させ、このアバットメント２の角筒状凹部2aと反対
側の角筒状部2c側から中央のボルト穴2dを貫通して中間
ボルト３のオネジ3aをインプラントフィクスチャー本体
１のメネジ1bに螺着させることによって行う。In order to form a dental prosthesis maintenance device, which is usually abbreviated as a dental implant, by using the dental prosthesis maintenance device according to the present invention having such a structure, first, the dental prosthesis maintenance device is formed in the bone of the missing tooth. The implant fixture 1 which is a device for maintaining and stabilizing the dental prosthesis is embedded in the embedding hole from the distal end side of the substantially hemispherical shape, and when the bond between the bone and the implant fixture 1 is confirmed, the above-mentioned two times In the method, the gingival part inside the oral cavity in which the implant fixture 1 is embedded is incised again and abuts against the end of the substantially cylindrical portion inside the oral cavity of the implant fixture 1 and penetrates the rectangular tubular portion 1a to form a substantially circular shape. The cover (not shown) screwed to the female screw 1b reaching the columnar part is removed from the implant fixture main body 1, and the tooth is attached to the part of the implant fixture main body 1 from which this cover is removed. The abutment 2, which is the mounting portion of the fixing device for the dental prosthesis, is fixed and waits until the incision is completely healed. The abutment 2 is fixed to the implant fixture main body 1 so that the rectangular tubular portion 1a is fitted into the rectangular tubular concave portion 2a at the end of the substantially cylindrical portion of the implant fixture main body 1. Position, and penetrate the central bolt hole 2d from the side of the rectangular cylindrical portion 2c opposite to the rectangular cylindrical concave portion 2a of the abutment 2 to insert the male screw 3a of the intermediate bolt 3 into the female screw 1b of the implant fixture body 1. It is done by screwing.
【００１８】かくして、アバットメント２付きインプラ
ントフィクスチャー本体１が顎骨及び歯肉に馴染んで天
然歯における歯根の機能を代行せしめ得るようになった
ら、所定の工程で印象を採得した後に補綴物形成用シリ
ンダ４のボルト穴4cに対応して、歯科用補綴物となるべ
き部分に貫通孔が設けられている状態で補綴物形成用シ
リンダ４の外面に歯科用補綴物の基礎となる合金を鋳接
し更にその外面に陶材を築盛し焼成して完成した歯科用
補綴物の補綴物形成用シリンダ４の基部4bをアバットメ
ント２の外周側平面2bに当接させ、ボルト穴4cを貫通さ
せて空間部4aに収納された状態にある中間ボルト３の頭
部のメネジ3bに固定ボルト５を螺着し、歯科用補綴物の
補綴物形成用シリンダ４のボルト穴4cに対応して歯科用
補綴物に設けられている貫通孔を歯科用セメント等を使
用して封塞すれば、治療が完了するのである。Thus, when the implant fixture main body 1 with the abutment 2 is adapted to the jawbone and the gingiva so as to be able to substitute the function of the root of a natural tooth, an impression is taken in a predetermined step and then a prosthesis is formed. Corresponding to the bolt holes 4c of the cylinder 4, the alloy to be the base of the dental prosthesis is cast on the outer surface of the prosthesis forming cylinder 4 in the state where the through hole is provided in the portion to be the dental prosthesis. Further, the base portion 4b of the dental prosthesis forming cylinder 4 of the dental prosthesis completed by laying and burning porcelain on the outer surface thereof is brought into contact with the outer peripheral side plane 2b of the abutment 2 and the bolt hole 4c is penetrated to form a space. The fixing bolt 5 is screwed onto the female screw 3b of the head of the intermediate bolt 3 stored in the portion 4a, and the dental prosthesis is provided corresponding to the bolt hole 4c of the prosthesis forming cylinder 4 of the dental prosthesis. Is provided in If sealed busy using dental cement or the like through holes, it is to treat the complete.
【００１９】しかしながら、前述した如く欠如歯部の骨
内に形成された埋入孔内に埋入されたインプラントフィ
クスチャー本体１の口腔内側に中間ボルト３を介して固
定されたアバットメント２に更に固定される補綴物形成
用シリンダ４の外面に合金を鋳接され更に陶材を築盛・
焼成されて製造される歯科用補綴物は、その歯科用補綴
物が単独歯用である場合には欠如歯部の骨内に形成され
た埋入孔内に埋入されたインプラントフィクスチャー本
体１に対して回転できない正確な位置に固定できなけれ
ばならないからアバットメント２と補綴物形成用シリン
ダ４とが正確な位置関係を維持できなければならないの
に対し、その歯科用補綴物が２個以上の補綴物形成用シ
リンダ４に連続して一体に製造される複数歯用である場
合には欠如歯部の骨内に形成された埋入孔内に埋入され
た２個以上のインプラントフィクスチャー本体１に対し
て２個以上の補綴物形成用シリンダ４が同時に装着でき
て固定できなければならないから、１個のアバットメン
ト２と１個の補綴物形成用シリンダ４とが正確な位置関
係を維持して回転できないような状態にあると各補綴物
形成用シリンダ４の基部4bを対応する各アバットメント
２の外周側平面2bに当接させる前に補綴物形成用シリン
ダ４の内面がアバットメント２の角筒状部2cやアバット
メント２をインプラントフィクスチャー本体１に固定し
ている中間ボルト３の頭部に当接して装着できなくなる
のである。However, as described above, the abutment 2 fixed via the intermediate bolt 3 to the inside of the oral cavity of the implant fixture body 1 embedded in the embedding hole formed in the bone of the missing tooth portion is further added. An alloy is cast on the outer surface of the fixed prosthesis forming cylinder 4 to build up porcelain.
When the dental prosthesis manufactured by firing is for a single tooth, the implant fixture main body 1 embedded in the embedding hole formed in the bone of the missing tooth part The abutment 2 and the prosthesis forming cylinder 4 must be able to maintain an accurate positional relationship because they must be able to be fixed in an accurate position that cannot be rotated with respect to the above, while the dental prosthesis has two or more dental prostheses. 2 or more implant fixtures embedded in the embedding hole formed in the bone of the missing tooth portion in the case of a plurality of teeth continuously and integrally manufactured in the prosthesis forming cylinder 4 of Since it is necessary that two or more prosthesis forming cylinders 4 can be simultaneously attached to and fixed to the main body 1, one abutment 2 and one prosthesis forming cylinder 4 have an accurate positional relationship. Keep and rotate In such a state that the inner surface of the prosthesis forming cylinder 4 does not reach the corner of the abutment 2 before the base portion 4b of each prosthesis forming cylinder 4 is brought into contact with the outer peripheral side flat surface 2b of each corresponding abutment 2. The cylindrical portion 2c and the abutment 2 come into contact with the head of the intermediate bolt 3 that is fixed to the implant fixture body 1 and cannot be mounted.
【００２０】このような現象の発生は、アバットメント
２の外周側平面2bに当接される基部4bを有しアバットメ
ント２をインプラントフィクスチャー本体１に固定した
中間ボルト３の頭部を内部に収納する空間部4aが形成さ
れており他端中央にこの空間部4aに連通するボルト穴4c
が設けられておりその外形状が前記基部4bの外径が最も
大きく途中に外径が小さくなる凹部4dが設けられている
補綴物形成用シリンダ４を、アバットメント２の角筒状
部2cが嵌入される角筒状凹部4aaが形成されている空間
部4aを形成されている単独歯用のもの以外に、アバット
メント２の角筒状部2cと中間ボルト３の頭部とに全く接
触しない複数歯用のものを準備すれば回避でき、その結
果歯科用補綴物維持装置を補綴物形成用シリンダ４のみ
をこの２種類を使用するだけで、他の部品は全て同じも
のを使用できる構成とすることができるのである。The occurrence of such a phenomenon is caused by the fact that the head portion of the intermediate bolt 3 having the base portion 4b which abuts on the outer peripheral side flat surface 2b of the abutment 2 and fixing the abutment 2 to the implant fixture body 1 is inside. A space 4a for accommodating is formed, and a bolt hole 4c communicating with this space 4a is formed at the center of the other end.
Is provided and the outer shape of the prosthesis forming cylinder 4 is provided with a recess 4d having the largest outer diameter of the base portion 4b and a small outer diameter in the middle, and the rectangular tubular portion 2c of the abutment 2 is Except for a single tooth having a space 4a in which a square tubular recess 4aa to be fitted is formed, the square tubular portion 2c of the abutment 2 and the head of the intermediate bolt 3 are not contacted at all. This can be avoided by preparing a plurality of teeth, and as a result, the dental prosthesis maintenance device can use only the prosthesis forming cylinder 4 of these two types and the other parts can use the same one. You can do it.
【００２１】[0021]
【発明の効果】以上に詳述した如く、本発明に係る歯科
用補綴物維持装置は、欠如歯部の骨内に形成された埋入
孔内に埋入されるインプラントフィクスチャー本体とア
バットメントとはチタン製であるので、顎骨に対して良
好な骨結合性と生体親和性とを有しており、このアバッ
トメントはインプラントフィクスチャー本体側がインプ
ラントフィクスチャー本体の略円柱状部端の外径と同一
外径を有しインプラントフィクスチャー本体から離れる
に従ってその外径は大きくなる截頭円錐形を成している
ので天然歯と類似の立上り形態に歯科用補綴物を製作す
ることができて外観の良好な歯科用補綴物とすることが
でき、補綴物形成用シリンダはアバットメントの角筒状
部が嵌入される角筒状凹部が形成されている空間部を形
成されている単独歯用のものと、アバットメントの角筒
状部と中間ボルトの頭部とに全く接触しない複数歯用の
ものとを準備すれば歯科用補綴物維持装置を構成する他
の部品であるインプラントフィクスチャー本体とアバッ
トメントと中間ボルトと固定ボルトとは全て同一のもの
を使用できるから部品点数を大幅に減少して製品管理が
容易になるばかりでなく、製品単価も減少して歯科用イ
ンプラントの普及に貢献できるのであり、その歯科分野
における利用価値は非常に大きなものがある。そして、
補綴物形成用シリンダの基部が截頭円錐形状のフランジ
部を成していて、この基部に続く外面に段差部が形成さ
れていると、補綴物形成用シリンダの外周に歯科用補綴
物の基体となる金属を鋳接した後に築盛する陶材の築盛
開始位置の目安となるので。より外観の優れた歯科用補
綴物を製造することが可能となるのである。As described above in detail, the dental prosthesis maintenance device according to the present invention has an implant fixture body and an abutment which are embedded in an embedding hole formed in the bone of the missing tooth. Since it is made of titanium, it has good osseointegration and biocompatibility for the jawbone, and this abutment has an implant fixture body side with an outer diameter of the end of the substantially cylindrical portion of the implant fixture body. It has the same outer diameter as that of the implant fixture, and its outer diameter increases with distance from the body of the implant fixture, so it is possible to manufacture a dental prosthesis with a rising shape similar to that of natural teeth. The dental prosthesis forming cylinder can be a good dental prosthesis, and the prosthesis forming cylinder has a space portion in which a square tubular concave portion into which the square tubular portion of the abutment is fitted is formed. Implant fixture, which is another component of the dental prosthesis maintenance device, if one for multiple teeth that does not come into contact with the rectangular tubular portion of the abutment and the head portion of the intermediate bolt is prepared. Since the same body, abutment, intermediate bolt, and fixing bolt can all be used, not only the number of parts is greatly reduced and product management becomes easier, but also the product unit price is reduced and dental implants are popularized. It can contribute, and its utility value in the dental field is extremely large. And
When the base portion of the prosthesis forming cylinder forms a frustoconical flange portion, and a step portion is formed on the outer surface following the base portion, the base of the dental prosthesis is formed on the outer periphery of the prosthesis forming cylinder. It is a guide for the starting position of the porcelain to be built up after casting and joining the metal to be built up. It is possible to manufacture a dental prosthesis having a better appearance.
【図１】本発明に係る歯科用補綴物維持装置を分解した
状態を示す斜視図である。FIG. 1 is a perspective view showing a state in which a dental prosthesis maintenance device according to the present invention is disassembled.
【図２】本発明に係る単独歯用の歯科用補綴物維持装置
の組み立てられた状態における断面図である。FIG. 2 is a sectional view of the dental prosthesis maintenance device for a single tooth according to the present invention in an assembled state.
【図３】本発明に係る複数歯用の歯科用補綴物維持装置
の組み立てられた状態における断面図である。FIG. 3 is a sectional view of a dental prosthesis maintenance device for multiple teeth according to the present invention in an assembled state.
１ インプラントフィクスチャー本体 1a 角筒状部 1b メネジ ２ アバットメント 2a 角筒状凹部 2b 外周側平面 2c 角筒状部 2d ボルト穴 ３ 中間ボルト 3a オネジ 3b メネジ ４ 補綴物形成用シリンダ 4a 空間部 4aa 角筒状凹部 4b 基部 4c ボルト穴 4d 凹部 ５ 固定ボルト 1 Implant fixture main body 1a Square tubular part 1b Female screw 2 Abutment 2a Square tubular concave part 2b Outer peripheral side plane 2c Square tubular part 2d Bolt hole 3 Intermediate bolt 3a Male screw 3b Female screw 4 Cylinder for forming prosthesis 4a Space part 4aa Square Cylindrical recess 4b Base 4c Bolt hole 4d Recess 5 Fixing bolt
Claims (2)
柱状をなし該略円柱状部の端部に角筒状部(1a)が設けら
れており該角筒状部(1a)を貫通して該略円柱状部に至る
メネジ(1b)が螺設されているチタン製のインプラントフ
ィクスチャー本体(１)と、該インプラントフィクスチャ
ー本体(１)側が該インプラントフィクスチャー本体(１)
の略円柱状部端の外径と同一外径を有し該インプラント
フィクスチャー本体(１)から離れるに従ってその外径は
大きくなる截頭円錐形を成しており且つ該インプラント
フィクスチャー本体(１)側には前記角筒状部(1a)が嵌入
される角筒状凹部(2a)がまたその反対側には少なくとも
軸心に対して直角な外周側平面(2b)と中心側の角筒状部
(2c)とが設けられていて中央にボルト穴(2d)が貫通穿設
されているチタン製のアバットメント(２)と、頭部にメ
ネジ(3b)が螺設されており該アバットメント(２)のボル
ト穴(2d)を貫通して前記インプラントフィクスチャー本
体(１)のメネジ(1b)に螺着されるオネジ(3a)が螺設され
ている中間ボルト(３)と、一端に前記アバットメント
(２)の外周側平面(2b)に当接される基部(4b)を有し該ア
バットメント(２)を前記インプラントフィクスチャー本
体(１)に固定した中間ボルト(３)の頭部を内部に収納す
る空間部(4a)が形成されており他端中央に該空間部(4a)
に連通するボルト穴(4c)が設けられておりその外形状が
該基部(4b)の外径が最も大きく途中に外径が小さくなる
凹部(4d)が設けられている補綴物形成用シリンダ(４)
と、該補綴物形成用シリンダ(４)のボルト穴(4c)に挿通
されて中間ボルト(３)の頭部のメネジ(3b)に螺着される
固定ボルト(５)から成り、該補綴物形成用シリンダ(４)
が前記アバットメント(２)の角筒状部(2c)が嵌入される
角筒状凹部(4aa)が形成されている空間部(4a)を形成さ
れている単独歯用のものと、前記アバットメント(２)の
角筒状部(2c)と前記中間ボルト(３)の頭部とに全く接触
しない複数歯用のものとから成ることを特徴とする歯科
用補綴物維持装置。1. A tip end is substantially hemispherical, and a portion following the tip end is substantially columnar, and a rectangular cylindrical portion (1a) is provided at an end of the substantially cylindrical portion, and the rectangular cylindrical portion (1a) is formed. A titanium implant fixture main body (1) having a female screw (1b) penetrating therethrough to reach the substantially cylindrical portion, and the implant fixture main body (1) side is the implant fixture main body (1)
Has an outer diameter that is the same as the outer diameter of the end of the substantially cylindrical portion of the implant fixture body (1), and the outer diameter increases with increasing distance from the implant fixture body (1), and the implant fixture body (1) ) Side, there is a square tubular concave portion (2a) into which the square tubular portion (1a) is fitted, and on the opposite side, at least the outer peripheral plane (2b) perpendicular to the axis and the central square tube. Section
(2c) is provided and a titanium abutment (2) having a bolt hole (2d) penetratingly formed in the center thereof, and a female screw (3b) screwed to the head of the abutment (2). An intermediate bolt (3) having a male screw (3a) threaded through the bolt hole (2d) of 2) and screwed to the female screw (1b) of the implant fixture body (1), and at one end of the intermediate bolt (3). Abutment
The head portion of the intermediate bolt (3) having a base portion (4b) that abuts on the outer peripheral side plane (2b) of (2) and fixing the abutment (2) to the implant fixture body (1) is inside. A space (4a) is formed to be stored in the center of the other end of the space (4a).
A prosthesis forming cylinder (4d) provided with a bolt hole (4c) communicating with the outer shape of the base portion (4b) having the largest outer diameter and a recess (4d) having a smaller outer diameter in the middle ( 4)
And a fixing bolt (5) which is inserted into the bolt hole (4c) of the prosthesis forming cylinder (4) and screwed into the female screw (3b) of the head of the intermediate bolt (3). Forming cylinder (4)
A single tooth having a space (4a) formed with a rectangular tubular recess (4aa) into which the rectangular tubular part (2c) of the abutment (2) is fitted; A dental prosthesis maintenance device comprising a rectangular tubular portion (2c) of the ment (2) and a plurality of teeth that do not come into contact with the head of the intermediate bolt (3) at all.
截頭円錐形状のフランジ部を成しており、この基部(4b)
に続く外面に段差部が形成されている請求項１に記載の
歯科用補綴物維持装置。2. A base portion (4b) of a prosthesis forming cylinder (4) forms a frustoconical flange portion, and the base portion (4b).
The dental prosthesis maintenance device according to claim 1, wherein a step portion is formed on an outer surface following the.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25367693A JP3571065B2 (en) | 1993-09-17 | 1993-09-17 | Dental prosthesis maintenance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25367693A JP3571065B2 (en) | 1993-09-17 | 1993-09-17 | Dental prosthesis maintenance device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0780003A true JPH0780003A (en) | 1995-03-28 |
| JP3571065B2 JP3571065B2 (en) | 2004-09-29 |
Family
ID=17254621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25367693A Expired - Fee Related JP3571065B2 (en) | 1993-09-17 | 1993-09-17 | Dental prosthesis maintenance device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3571065B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2042122A1 (en) | 2007-09-27 | 2009-04-01 | GC Corporation | Dental implant abutment |
| EP2491887A1 (en) | 2011-02-23 | 2012-08-29 | GC Corporation | Dental implant abutment made of titanium |
| KR101369900B1 (en) * | 2012-03-07 | 2014-03-06 | (주)원우이엔지 | Shaft assembly for scissors type bucket apparatus and scissors type bucket apparatus with the same |
| KR101504656B1 (en) * | 2014-09-29 | 2015-03-23 | (주)원우이엔지 | Shaft assembly for scissors type bucket apparatus and scissors type bucket apparatus with the same |
| KR102034995B1 (en) * | 2019-06-19 | 2019-10-21 | 김성민 | Abutment for Implant and Method for making the same |
-
1993
- 1993-09-17 JP JP25367693A patent/JP3571065B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2042122A1 (en) | 2007-09-27 | 2009-04-01 | GC Corporation | Dental implant abutment |
| EP2491887A1 (en) | 2011-02-23 | 2012-08-29 | GC Corporation | Dental implant abutment made of titanium |
| KR101369900B1 (en) * | 2012-03-07 | 2014-03-06 | (주)원우이엔지 | Shaft assembly for scissors type bucket apparatus and scissors type bucket apparatus with the same |
| KR101504656B1 (en) * | 2014-09-29 | 2015-03-23 | (주)원우이엔지 | Shaft assembly for scissors type bucket apparatus and scissors type bucket apparatus with the same |
| WO2016052829A1 (en) * | 2014-09-29 | 2016-04-07 | (주)원우이엔지 | Rotation shaft assembly for scissors-type bucket apparatus with improved assembly and scissors-type bucket apparatus having same |
| KR102034995B1 (en) * | 2019-06-19 | 2019-10-21 | 김성민 | Abutment for Implant and Method for making the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3571065B2 (en) | 2004-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH10108871A (en) | Angled dental implant | |
| JP4531569B2 (en) | Dental implant system | |
| US4016651A (en) | Device for implanting an artificial endosseous element of ceramics and an implant method for use of the device | |
| JP4420423B2 (en) | Self-tapping dental screw type implant fixture drill set | |
| US6431866B2 (en) | Heal in-place abutment system | |
| US5759036A (en) | Complete dental implant system and method | |
| JP5017285B2 (en) | Ceramic / metal dental abutment | |
| US5599185A (en) | Dental implant healing abutment | |
| US7341454B2 (en) | Attachment mechanism for dental implants | |
| US4799886A (en) | Dental submerged endosseous implant | |
| US20080227057A1 (en) | Narrow Dental Implant and Associated Parts | |
| JP2000300582A (en) | Endo-osseous root-shaped dental implant and implant extension | |
| JP2001258906A (en) | Preparation coping for creating accurate permanent post to support final prosthesis and method for creating the same | |
| JP2000083970A (en) | Cover screw for dental implant | |
| JPH06205795A (en) | Anchor element for fixation in bone tissue | |
| US5499918A (en) | Apparatus for preserving interdental papilla and method for using | |
| JP3637978B2 (en) | Abutment selector for dental implants | |
| JPH0780003A (en) | Dental prosthetic appliance maintaining device | |
| JPH0449958A (en) | Artificial tooth root | |
| JPH1147158A (en) | Angled dental implant | |
| JP3642831B2 (en) | Abutment selector for dental implants | |
| CN101141931B (en) | Transfer copings for dental implants | |
| JPH0780004A (en) | Coping for impression taking of dental implant | |
| JP3252861U (en) | Dental abutments | |
| KR20160118200A (en) | System for dental implant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20040622 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20040623 |
|
| R150 | Certificate of patent (=grant) or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100702 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100702 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130702 Year of fee payment: 9 |
|
| LAPS | Cancellation because of no payment of annual fees |