성견 경골에서 표면처리방법이 다른 4종의 임프란트 골유착에 관한 비교연구

• 영문명: COMPARATIVE STUDY OF OSSEOINTEGRATION OF 4 DIFFERENT SURFACED IMPLANTS IN THE TIBIA OF DOGS
• 발행기관: 대한구강악안면외과학회
• 저자명: 홍후석(Who-Suk Hong) 김태희(Tae-Hee Kim) 류승희(Seong-Hee Ryu) 국민석(Min-Suk Kook) 박홍주(Hong-Ju Park) 오희균(Hee-Kyun Oh)
• 간행물 정보: 『대한구강악안면외과학회지』대한구강악안면외과학회지 제31권 제1호, 46~54쪽, 전체 9쪽
• 주제분류: 의약학 > 내과학
• 파일형태: PDF
• 발행일자: 2005.02.28

영문 초록

Purpose: This study was performed in order to compare the osseointegration of 4 different surfaced implants in the dog’s tibia which has thick dense cortical bone and loose marrow space. Materials & methods: Four mongrel dogs and four different surface types of implants, smooth surfaced AVANA implants, RBM surfaced AVANA implants, HA-coated Steri-Oss implants and SLA Bicon implants, were used in this study. The animals were divided into 4 groups on the basis of implant surface characteristics: Control group, RBM group, HA group, and SLA group. Three implants of each group were installed into the metaphysis of tibia of adult dogs. The animals were sacrificed at 8 weeks after implantation. The undecalcified specimens were prepared for histological examination and histomorphometric analysis of implant-bone contact ratios. Results: Radiographically and histologically good osseointegration of implant was observed in the dense cortical bone, but poor osseointegration was observed in the marrow space. Histologically more bone apposition to implant surface was found in rough surfaced groups than the smooth surfaced, Control group. In histomorphometric findings of cortical bone the average bone-implant contact ratios of HA group (95.4%, p<0.01), RBM group (87.1%, p<0.05), and SLA group (86.0%, p<0.05) were significantly higher than that of Control group (75.9%). In marrow space the average bone-implant contact ratios of HA group (76.1%, p<0.01) and SLA group (45.4%, p<0.05) were significantly higher than that of Control group(29.6%). The ratio of RBM group was higher than that of Control group but there was no significantly difference between RBM group and Control group. Conclusion: These results suggest that the rough surfaced implants can obtain the better osseointegration than the smooth surfaced implant in the cortical and marrow space and that HA-coated implants can obtain the best osseointegration in the marrow space among them.

키워드

Implant surface Osseointegration Poor quality bone