Sealer의 사용이 임프란트 나사의 안정성에 미치는 영향

이흥태; 김낙형; 정재헌

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Sealer의 사용이 임프란트 나사의 안정성에 미치는 영향
A STUDY ON THE STABILITY OF IMPLANT SCREW BY USE OF THE SEALER

대한치과보철학회지 2001년 39권 4호 p.366 ~ 375

이흥태, 김낙형, 정재헌,

소속 상세정보

이흥태 ( Lee Heung-Tae ) - 조선대학교 치과대학 치과보철학교실
김낙형 ( Kim Nak-Hyung ) - 조선대학교 치과대학 치과보철학교실
정재헌 ( Chung Chae-Heon ) - 조선대학교 치과대학 치과보철학교실

KMID : 0362420010390040366

Abstract

The objective of this study was to investigate the surface contact and screw joint stability between screw and implant interface by use of sealer. The implants evaluated in this study were Steri-Oss fixtures(Hexlock 3.8DX10mm;Steri-Oss, Yorba Linda, CA), and Steri-Oss staight abutment. Titanium alloy screws were used to secure abutments to implants. The other titanium alloy screws applicating sealer(Impla-Seal, Implant Support Systems, Inc. Irvine, CA) were used to secure abutments to implants. In one another sample, 6Kg of force was applied during simulated intraoral movements after abutment screws were secured to the implants with sealer. All samples were cross sectioned with sandpaper and polished with 0.1micrometer AI2O3. Then samples were recorded with an scanning electron microscope. The results were as follows; 1.In the case of titanium alloy screw, irregular contacts and relatively large gap were present at thread mating surface. Also abutment screw/implant interface demonstrate incomplete seating and only one surface contact of threads between implant and screw. 2.In the case of titanium alloy screw applecating sealer, sealer was present between implant and screw. Therefore implant and screw had relatively close and tight contact without the presence of large gap. 3.On the other hand, in the case of titanium alloy screw applicating sealer and dynamic loading of suprastructures, sealer was partially present between implant and screw. Conclusively, sealer fills voids, creating a barrier to moisture and bacteria. In addition, loading of suprastructures may change the situation and limit the indications for gap sealing.