해면골의 두께 및 밀도가 임플란트의 1차 안정도에 미치는 영향에 관한 연구: in vitro
The influence of the cancellous bone thickness and density on the implant primary stability
홍승범, 김민석, 전태현, 김영각, 현기, 주총, 최연조, 전상호, 류재준, 권종진,
소속 상세정보
홍승범 ( Hong Seung-Beom ) - 고려대학교 안암병원 치과 구강악안면외과
김민석 ( Kim Min-Suk ) - 고려대학교 임상치의학대학원
전태현 ( Jeon Tea-Hyun ) - 고려대학교 안암병원 치과 구강악안면외과
김영각 ( Kim Young-Kak ) - 고려대학교 안암병원 치과 구강악안면외과
현기 ( Hyun Ki ) - 고려대학교 안암병원 치과 구강악안면외과
주총 ( Zhou Cong ) - 고려대학교 임상치의학대학원
최연조 ( Choi Yeon-Jo ) - 고려대학교 안암병원 치과 보철과
전상호 ( Jun Sang-Ho ) - 고려대학교 안암병원 치과 구강악안면외과
류재준 ( Ryu Jae-Jun ) - 고려대학교 안암병원 치과 보철과
권종진 ( Kwon Jong-Jin ) - 고려대학교 안암병원 치과 구강악안면외과
KMID : 1025720140330020048
Abstract
Purpose: The purpose of this study was to evaluate the influence of the cancellous bone thickness and density on the implant primary stability.
Materials and Methods: The implants used in this experiment were Biotem implants, designed internal submerged tapered (Ø 4.0 mm × 11.5 mm, RBM surface, Seoul, Korea). A total of the 108 Biotem implants were installed into 18 artificial block bone blocks (Sawbones, Pacific Research Laboratories, Washington, USA). The artificial bone blocks were divided depending on density (D3, D4 bone) and each group was divided again into 3 groups according to cortical bone thickness (0 mm, 1 mm, 2 mm). The cancellous bone part of artificial bone blocks were removed leaving 2 mm, 5 mm, 8 mm bone thickness. Then, we inserted the implants on the artificial bone blocks. For each bone block, 6 installation sites were prepared. After inserting the implants, we measured the ISQ (Implant Stability Quotient) value with Osstell Mentor. Finally, the 2 way ANOVA was undertaken for statistical analysis (P＜0.05).
Results: We compared the ISQ values with different density and thickness of cancellous bones. The stabilities on D3 and D4 bones show a statistically significant difference in ISQ values . The thickness of the cancellous bone on D3 showed a statistically significant difference when the thickness of the cortical bone was zero and 1mm. However, the thickness of the cancellous bone on D3 did not show a statistically significant difference when the thickness of the cortical bone was 2 mm. The thickness of the cancellous bone on D4 showed a statistically significant difference when the thickness of the cortical bone was zero. However, the thickness of the cancellous bone on D4 did not show a statistically significant ifference when the thickness of cortical bone was 1mm and 2 mm. The influence of cancellous bone was greater when the quality of bone was greater and the thickness of cortical bone was thinner.
Conclusion: There was a statistically significant difference of the primary stability due to cancellous bone density of D3 and D4 bone. However, there was no statistical significance in the primary stability when cortical thickness was 2mm regardless the thickness of the cancellous bone. The influence of cancellous bone was greater when the quality of bone was greater and the thickness of cortical bone was thinner.
키워드
primary stability;cortical bone;cancellous bone thickness and density;ISQ value
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