가토의 대퇴골에 식립한 3종류의 수산화인회석 코팅 임플란트에 대한 제거회전력 비교 연구 (Comparative study of removal torque of 3 different hydroxyapatite coated implants in the femur of rabbits)

서지정보

· 발행기관 : 대한구강악안면외과학회
· 수록지 정보 : 대한구강악안면외과학회지 / 37권 / 1호 / 49 ~ 53페이지
· 저자명 : 김상수, 이주형, 유석현, 이형주, 문지원, 박인숙, 손동석

초록

Introduction: This study compared the strength of osseointegration as determined by the resistance to reverse torque rotation of three different hydroxyapatite coated implants in the rabbit femur model.
Materials and Methods: Three hydroxyapatite coated implants (HAPTITE), Tapered Screw-Vent (TSV) and BioTite-H - were used. A total of 40implants were placed in the femur of 20 adult male rabbits. The animals were divided into two groups. In group A (n=10); one HAPTITE was placed into each right femur and one TSV was placed into each left femur. In group B (n=10); one HAPTITE was placed into each right femur and one BioTite-H was placed into each left femur. Five rabbits of each group were sacrificed at 4 and 8 weeks. The implants were removed by reverse torque rotation using a digital torque-measuring device. A total of 40 implants in 20 rabbits were used for the removal torque measurements.
Results: In the Group A, 4 weeks after implant placement, the mean removal torque for the HAPTITE and TSV was 70.7±31.6 N cm and 28.9±15.1 N cm, respectively. Eight weeks after implant placement, the mean removal torque for the HAPTITE and TSV was 87.9±26.2 N cm and 54.9±22.4 N cm, respectively. In the Group B, 4 weeks after implant placement, the mean removal torque for the HAPTITE and BioTite-H was 58.0±29.6N cm and 37.7±14.1 N cm, respectively. Eight weeks after implant placement, the mean removal torque for the HAPTITE and BioTite-H was 91.4±47.1 N cm and 30.8±9.8 N cm. HAPTITE showed a higher removal torque than the other implants.
Conclusion: These results suggest that HAPTITE increases the strength of osseointegration significantly as determined by the resistance to reverse torque rotation.

영어초록

Introduction: This study compared the strength of osseointegration as determined by the resistance to reverse torque rotation of three different hydroxyapatite coated implants in the rabbit femur model.
Materials and Methods: Three hydroxyapatite coated implants (HAPTITE), Tapered Screw-Vent (TSV) and BioTite-H - were used. A total of 40implants were placed in the femur of 20 adult male rabbits. The animals were divided into two groups. In group A (n=10); one HAPTITE was placed into each right femur and one TSV was placed into each left femur. In group B (n=10); one HAPTITE was placed into each right femur and one BioTite-H was placed into each left femur. Five rabbits of each group were sacrificed at 4 and 8 weeks. The implants were removed by reverse torque rotation using a digital torque-measuring device. A total of 40 implants in 20 rabbits were used for the removal torque measurements.
Results: In the Group A, 4 weeks after implant placement, the mean removal torque for the HAPTITE and TSV was 70.7±31.6 N cm and 28.9±15.1 N cm, respectively. Eight weeks after implant placement, the mean removal torque for the HAPTITE and TSV was 87.9±26.2 N cm and 54.9±22.4 N cm, respectively. In the Group B, 4 weeks after implant placement, the mean removal torque for the HAPTITE and BioTite-H was 58.0±29.6N cm and 37.7±14.1 N cm, respectively. Eight weeks after implant placement, the mean removal torque for the HAPTITE and BioTite-H was 91.4±47.1 N cm and 30.8±9.8 N cm. HAPTITE showed a higher removal torque than the other implants.
Conclusion: These results suggest that HAPTITE increases the strength of osseointegration significantly as determined by the resistance to reverse torque rotation.

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