토끼 경골에서 치과용 임프란트의 RBM 및 SLA 표면처리에 따른 조직계측학적 연구

• 영문명: HISTOMORPHOMETRIC STUDY OF DENTAL IMPLANTS WITH RBM AND SLA SURFACE IN THE RABBIT TIBIA
• 발행기관: 대한구강악안면외과학회
• 저자명: 송국현(Kook-Hyeon Song) 김일규(Il-Kyu Kim) 장금수(Kum-Soo Jang) 김규남(Kyu-Nam Kim) 최진웅(Jin-Ung Choi)
• 간행물 정보: 『대한구강악안면외과학회지』대한구강악안면외과학회지 제32권 제6호, 514~523쪽, 전체 10쪽
• 주제분류: 의약학 > 내과학
• 파일형태: PDF
• 발행일자: 2006.12.30

영문 초록

The purpose of the present study was to evaluate the effects of several implant surface treatments to the bone formation, by placing Machined implants, 75㎛ Calcium phosphate-blasted implants and Al2O3- blasted and acid-etched implants in rabbit tibia through histomorphometric study. Two animals of each group were sacrificed at 2, 4, 8 weeks. The specimens containing the implants were dehydrated and embedded into hard methylmethacrylate plastic. Thereafter, the sections were ground to 50㎛. The specimens were stained with Villanueva bone stain for a light microscopic study. The results were as follows; 1. When the surface roughness of three different implants was measured by Surfcorder, the Ra of the Machined group, the RBM group and the SLA group was 0.16㎛, 0.44㎛, and 1.08㎛. 2. When examining the surfaces of the implants in the scanning microscope, Machined implant has the smooth surface with a few scratches, RBM implant has the rough surface with curled ridges and valleys, and SLA implant has the rough surface structures such as sharp protruding parts and micropits measuring 1-2㎛ in diameter. 3. After 2 weeks of implantation, the percentage of bone-to-implant contact of the Machined group, the RBM group and the SLA group was 26.86%, 35.40% and 45.99%. However, its differences between each group decreased during the healing periods. 4. After 2 weeks of implantation, the percentage of bone area inside the threads of the Machined group, the RBM group and the SLA group were 21.55%, 30.43% and 41.18%. However, its difference of bone area between machined group and surface treatment groups was maintained but the difference within the surface treatment groups decreased during the healing periods. In summary, the amount of bone formation in RBM and SLA group was greater than Machined group in early healing stage. These results suggest that RBM and SLA implants can reduce the healing period for osseointegration and may be suitable for early function.

키워드

Osseointegration RBM implant SLA implant Bone-to-implant contact