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공학 일반 건축공학 기계공학 산업공학 재료·에너지공학 전기전자공학 조선해양공학 화학공학 컴퓨터학 기타공학
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학제간연구 과학기술학 뇌인지과학 기술정책 기타 복합학

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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
대한구강악안면외과학회 대한구강악안면외과학회지 대한구강악안면외과학회지 제34권 제5호
발행연도
2008.1
수록면
571 - 577 (7page)

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초록· 키워드

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Introduction: Possible etiologic factors associated with bone loss around implants after implantation are surgical trauma, occlusal overload, peri-implantitis, presence of micro gap and the formation of biologic distances. Tarnow et al. observed that the crestal bone loss was greater when the distance between the implants was <3mm than when the implants were ≥3mm apart. The aim of this study was to evaluate the influence of different interimplant distance on marginal bone and crestal bone resorption in the beagle dogs. Materials and methods: The mandibular premolars of 5 dogs were extracted bilaterally. After 12 weeks of healing, each dog received 7 implants. On each side, implants were separated by 2mm (Group 1) and by 5mm (Group 2). After 16 weeks of healing, the dogs were sacrificed. Marginal bone loss was determined through linear measurements made between the implant-abutment junctions and the most coronal portions of the bone in contact with the implant surface. A line was drawn uniting the implant-abutment junctions of the adjacent implants, and a linear measurement was made at the midpoint in the direction of the most coronal peak of the interimplant bone crest to determine the crestal bone loss. Both of them was measured radiologically and histologically. Result and conclusion: In radiological analysis, the mean of marginal bone loss was 1.26±0.14mm for group 1 and 1.23±0.34mm for group 2, the mean of crestal bone loss was 1.10±0.14mm for group 1 and 1.02±0.30mm for group 2. The results were not statistically significant between 2 groups. In histological analysis, the mean of marginal bone loss was 1.63±0.48mm for group 1 and 1.62±0.50mm for group 2, the mean of crestal bone loss was 1.23±0.35mm for group 1 and 1.15±0.39mm for group 2. The differences were also not statistically significant. The clinical significance of this result is that the increase in the crestal bone loss results in the increase in the distance between the base of the interproximal contact of the crowns and the bone crest, and this determines if papilla will be present or absent between implants. Considering this fact, keeping up sufficient interimplant distance is important to minimize crestal bone loss.
#Interimplant distance #Marginal bone loss #Crestal bone loss

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참고문헌 (23)

참고문헌 신청
Adell R / 1981 / A 15-year study of osseointegrated implants in the treatment of the edentulous jaw / Int J Oral Surg 6 : 387 ~ 416 google schola Albrektsson T / 1986 / The long-termefficacy of currently used dental implants: A review and proposed criteria of success / Int J Oral Maxillofac Implants 1 : 11 ~ 25 google schola Buser D / 1992 / Soft tissue reactions to non-submerged unloaded titanium implants in beagle dogs / J Periodontol 63 : 226 ~ 236 google schola Cochran DL / 1997 / Biologic width around titanium implants. A histometric analysis of the implanto-gingival junction around unloaded and loaded non-submerged implants in the google schola Gargiulo AW / 1961 / Dimentions and relations of the dentogingival junction on humans / J Periodontol 32 : 261 ~ 267 google schola

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