KR20130019234A - Dental implants with a porous shape memory alloys - Google Patents

Dental implants with a porous shape memory alloys Download PDF

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Publication number
KR20130019234A
KR20130019234A KR1020110081273A KR20110081273A KR20130019234A KR 20130019234 A KR20130019234 A KR 20130019234A KR 1020110081273 A KR1020110081273 A KR 1020110081273A KR 20110081273 A KR20110081273 A KR 20110081273A KR 20130019234 A KR20130019234 A KR 20130019234A
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South Korea
Prior art keywords
implant
memory alloy
shape memory
porous
foaming
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KR1020110081273A
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Korean (ko)
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이상철
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이상철
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Priority to KR1020110081273A priority Critical patent/KR20130019234A/en
Publication of KR20130019234A publication Critical patent/KR20130019234A/en

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    • 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
    • A61C13/00—Dental prostheses; Making same
    • A61C13/0003—Making bridge-work, inlays, implants or the like
    • A61C13/0006—Production methods
    • 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
    • A61C8/0003—Not used, see subgroups
    • A61C8/0004—Consolidating natural teeth
    • A61C8/0006—Periodontal tissue or bone regeneration
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/02—Inorganic materials
    • A61L27/04—Metals or alloys
    • A61L27/06—Titanium or titanium alloys
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A61L27/56—Porous materials, e.g. foams or sponges
    • 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
    • A61C8/0018—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 shape
    • A61C8/0037—Details of the shape
    • A61C2008/0046—Textured surface, e.g. roughness, microstructure

Abstract

PURPOSE: A dental implant using porous form memory alloy is provided to increase the lifetime of an implant and to improve fixing strength. CONSTITUTION: A dental implant using porous form memory alloy is as follows. A porous dental implant with high osseointegration is manufactured using powder foaming technology of shape memory alloy. The dental implant using porous form memory alloy is manufactured by press-molding nitinol based shape memory alloy, foaming agent, and metal powder, and foaming the alloy at a high temperature.

Description

다공성 형상기억합금을 이용한 치아 임플란트 {Dental implants with a porous shape memory alloys}Dental implants with a porous shape memory alloys

Nitinol계 형상기억합금을 분말소결발포기술을 활용하여 턱뼈에 고정되는 다공성 임플란트를 제조하는 것에 관한 것으로, 일정 범위에서 크기를 갖는 다공체 내로 골 섬유 조직이 내방성장(Ingrowth)하는 것을 활용하여 기존 임플란트에서 반듯이 해결되어야 할 문제들로 지적되고 있는 골조직간의 접촉계면의 증가, 고정강도의 향상, 임플란트의 수명 증대 등을 해결 할 수 있는 신개념의 다공성 임플란트에 관한 것이다.
Nitinol-based shape memory alloy using a powder sintered foaming technology to manufacture a porous implant fixed to the jawbone, the bone fiber tissue into the porous body having a certain range by utilizing the internal growth (Ingrowth) in the existing implant The present invention relates to a new concept of porous implant that can solve the increase of contact interface between bone tissues, improvement of fixed strength and increase of implant life.

본 발명[ 도1 ]은 턱뼈에 고정되는 치아 임플란트에 관한 것으로 기존의 비 다공성 임플란트와 생체융합성 바이오 세라믹 분말로 코팅된 임플란트 등이 사용되고 있다. 기존의 비 다공성 임플란트는 뼈에 대한 생체 친화력이 작아 낮은 강도, 짧을 수명, 그리고 고정되기까지 많은 시간이 소요되는 문제점이 제기되고 있다. 또한 생체 융합성 바이오 세라믹 분말 코팅에의한 임플란트의 경우 코팅 처리된 바이오 세라믹 입자가 박리되거나 임플란트 모체와의 결합력이나 코팅력이 약화되어 임플란트의 수명 감소와 오염물질이 생성되어 염증을 발생시키는 문제점이 제기되고 있다. 따라서 생체친화력이 높은 임플란트를 사용함으로써 임플란트와 골 섬유조직간의 직접적 접촉으로 고정강도를 향상시키면서 임플란트의 수명을 증가시킬 수 있는 생체융합성 임플란트의 요구가 증가되고 있다.The present invention [FIG. 1] relates to a dental implant that is fixed to the jawbone, the conventional non-porous implants and implants coated with biocompatible bio-ceramic powder are used. Existing non-porous implants have a low biocompatibility with bones, resulting in low strength, short lifespan, and long time to fix. In addition, in the case of an implant using a biocompatible bioceramic powder coating, the coated bio-ceramic particles may be peeled off, or the bonding force or coating power of the implant mother may be weakened, thereby reducing the lifetime of the implant and generating contaminants, causing inflammation. Is being raised. Therefore, the use of implants with high biocompatibility is increasing the demand for biocompatible implants that can increase the life of the implant while improving the fixed strength by direct contact between the implant and bone fiber tissue.

본 발명은 기존의 임플란트가 가진 결함을 개선하기 위해 임플란트 하단을 Nitinol계 형상기억합금을 분말소결발포기술을 활용하여 만들어진 다공성 형상기억합금으로 제조되었으며, 골 조직에 고정시 임플란트의 표면과 골 섬유조직과의 접촉면을 증대시키기 위해 외부의 표면을 거칠게 하였다. 이것은 기존의 임플란트의 문제점을 개선하여 골조직간의 접촉계면의 증가, 고정강도의 향상, 임플란트의 수명 증대를 이룰 수 있는 새로운 다공성 치아 임플란트이다.
The present invention was made of a porous shape memory alloy made of Nitinol-based shape memory alloy using powder sintering foaming technology at the bottom of the implant to improve the defects of the existing implant, the surface of the implant and bone fiber tissue when fixed to bone tissue The external surface was roughened to increase the contact surface with the. This is a new porous dental implant that can improve the problems of existing implants, increase the contact interface between bone tissue, improve the fixed strength, and increase the life of the implant.

본 발명은 기존의 임플란트가 가진 뼈에 대한 인체 친화성이 작은 티타늄 임플란트를 Nitinol계 형상기억합금의 분말소결발포기술을 활용하여 만들어진 다공성 형상기억합금 임플란트로 제작하여 기존 임플란트의 문제점을 개선한다.
The present invention improves the problems of the existing implant by making a titanium implant having a small human affinity for the bone of the existing implant with a porous shape memory alloy implant made using a powder sintering foaming technology of the Nitinol-based shape memory alloy.

기존 임플란트의 문제점인 장시간의 시술시간을 Nitinol계 형상기억합금의 분말소결발포기술을 활용하여 만들어진 다공성 형상기억합금 임플란트로 제작하여 골융합성을 증대시켜 임플란트 시술 시간을 단축한다.
The prolonged procedure time, which is a problem of the existing implants, is made of a porous shape memory alloy implant made using the powder sintered foaming technology of the Nitinol-based shape memory alloy, thereby increasing bone fusion and shortening the implant procedure time.

[ 대표도 ]
① 인공치아 상아질 - 외부에 노출되는 치아 부분
② 인공치아 상아질이 고정되는 티타늄이나 초탄성 형상기억합금으로 이루어진 임플란트 상단, 수나사 부분
③ Nitinol계 형상기억합금의 분말소결발포기술을 활용하여 만들어진 다공성 형상기억합금 임플란트로써 하단, 암나사 부분으로 턱뼈에 삽입되어 티타늄이나 초탄성 형상기억합금으로 만들어진 임플란트의 상단 부분(②)을 고정한다.
인공치아 상아질과 상아질이 고정되는 임플란트 상단, 그리고 임플란트 상단이 고정되는 임플란트 하단의 결합모습 임플란트가 턱뼈에 시술되는 모습 Nitinol계 형상기억합금을 분말소결발포기술을 활용하여 만들어진 다공성 형상기억합금 임플란트 하단으로 턱뼈와 골 융합되어 단단히 고정된다. [Representative diagram]
① artificial teeth dentin-part of the tooth exposed to the outside
② Implant top and male thread part made of titanium or superelastic shape memory alloy to which artificial teeth dentin is fixed
③ Porous shape memory alloy implant made using powder sintering and foaming technology of Nitinol-based shape memory alloy.
Combination of artificial teeth dentin and the upper part of the implant where the dentin is fixed and the lower part of the implant where the upper part of the implant is fixed Implant is applied to the jaw bone Nitinol-based shape memory alloy is firmly fixed by fusion with jawbone to the bottom of porous shape memory alloy implant made using powder sintering foaming technology.

본 발명은 대표도에 나타난 바와 같이 임플란트 하단 부분을 Nitinol계 형상기억합금의 분말소결발포기술을 활용하여 만들어진 다공성 형상기억합금 임플란트로 제작함으로써, 생체 융합성이 높아져 턱뼈의 골섬유조직이 임플란트 내부로 침투, 성장을 가능케하여 임플란트 소재와 골조직간의 접촉면을 증가시킬 뿐아니라, 골 성장후에는 저작(씹음)과 같은 치아 운동시 발생하는 응력을 완화시켜 고정강도의 증가와 임플란트의 수명을 크게 증대시킨다. According to the present invention, the lower portion of the implant is made of a porous shape memory alloy implant made by using a powder-sintered foaming technology of Nitinol-based memory alloys, thereby increasing biocompatibility, so that the bone fiber tissue of the jawbone is implanted into the implant. Not only does it increase the contact surface between implant material and bone tissue by enabling penetration and growth, but it also increases the fixed strength and greatly increases the life of the implant by relieving stress generated during tooth movements such as chewing after bone growth.

또한 임플란트 소재와 골조직간의 접촉면을 증가시키기위해 별도의 코팅작업이나 부식작용이 필요 없어 생산 공정을 줄일 수 있다.In addition, there is no need for additional coating or corrosion to increase the contact surface between the implant material and bone tissue, reducing the production process.

또한 Nitinol계 형상기억합금의 분말소결발포 기술을 적용하여 만들어진 임플란트 소재는 자체의 골융합성이 좋아, 골융합성 증대를 위해 골융합성이 높은 물질을 임플란트 소재에 별도로 코팅하는 작업이 필요 없다.
In addition, the implant material made by applying Nitinol-based shape memory alloy powder sintering and foaming technology has good osteolysis of its own, so that it is not necessary to separately coat a highly osteosynthetic material on the implant material in order to increase bone fusion.

Nitinol : (니켈＋티타늄:니티놀)
분말소결발포 : 발포제와 금속분말을 먼저 압축성형한 후 고온에서 발포시키는 제조방법Nitinol: (nickel + titanium: nitinol)
Powder sintered foam: Manufacturing method in which foaming agent and metal powder are first compression molded and then foamed at high temperature

Claims (2)

Nitinol계 형상기억합금의 분말소결발포 기술을 적용하여 제작함으로써 골융합성이 높은 다공성 치아 임플란트
Porous dental implant with high bone fusion by manufacturing by applying powder sintering foaming technology of Nitinol type memory alloy
Nitinol계 형상기억합금을 발포제와 금속분말(니켈과 티타늄)을 먼저 압축성형한 후 고온에서 발포시키는 제조방법(분말소결발포)을 거처 다공성 임플란트의 원 소재인 Nitinol계 다공성 형상기억합금을 제조하는 방법
Method of manufacturing Nitinol-based porous shape memory alloy, which is the raw material of porous implants, through compression method of foaming agent and metal powder (nickel and titanium) and then foaming at high temperature (powder sintering and foaming)
KR1020110081273A 2011-08-16 2011-08-16 Dental implants with a porous shape memory alloys KR20130019234A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140130773A (en) * 2013-05-02 2014-11-12 주식회사 네오바이오텍 Detachable dental implant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140130773A (en) * 2013-05-02 2014-11-12 주식회사 네오바이오텍 Detachable dental implant

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