가토의 대퇴골에 식립한 3종류의 수산화인회석 코팅 임플란트에 대한 제거회전력 비교 연구

김상수; 이주형; 유석현; 이형주; 문지원; 박인숙; 손동석

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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

대한구강악안면외과학회지 2011년 37권 1호 p.49 ~ 53

김상수, 이주형, 유석현, 이형주, 문지원, 박인숙, 손동석,

소속 상세정보

김상수 ( Kim Sang-Soo ) - 대구가톨릭대학교병원 치과 구강악안면외과학교실
이주형 ( Lee Ju-Hyoung ) - 대구가톨릭대학교병원 치과 구강악안면외과학교실
유석현 ( Yu Seok-Hyun ) - 대구가톨릭대학교병원 치과 구강악안면외과학교실
이형주 ( Lee Hyung-Ju ) - 대구가톨릭대학교병원 치과 구강악안면외과학교실
문지원 ( Moon Jee-Won ) - 대구가톨릭대학교병원 치과 구강악안면외과학교실
박인숙 ( Park In-Sook ) - 대구가톨릭대학교병원 치과 구강악안면외과학교실
손동석 ( Sohn Dong-Seok ) - 대구가톨릭대학교병원 치과 구강악안면외과학교실

KMID : 0355620110370010049

Abstract

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 40 implants 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±29.6 N 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.