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양극산화 임플란트 표면에 적용된 골형성단백질과 혈관내피세포성장인자가 골유착에 미치는 영향: 예비연구

Combined effects of rhBMP-2 and rhVEGF coated onto implants on osseointegration: pilot study

전영찬|정창모|윤미정|신상완|허중보
대한치과보철학회 (The Korean Academy Of Prosthodontics)|2013.04|대한치과보철학회지 (The Journal of Korean Academy of Prosthodontics)|제51권 제2호|pp. 82-89|DOI https://doi.org/10.4047/jkap.2013.51.2.82

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참고문헌

키워드

골유착OsseointegrationImplant stability quotientRemoval torque골형성 단백질혈관내피세포성장인자임플란트 안정지수회전 제거력rhBMP-2rhVEGF
주제분류치의학

초록

연구 목적: 본 연구는 양극산화 임플란트에 골형성단백질과 혈관내피세포성장인자를 코팅한 임플란트를 토끼의 경골에 식립하여 골과 임플란트 계면의 골유착 향상의 가능성을 평가하고자 시행하였다. 연구재료 및 방법: 6마리의 토끼 양측 경골에 코팅을 하지 않은 양극 산화 임플란트(대조군)와 골형성 단백질과 혈관내피세포성장인자를 코팅한 임플란트(실험군)을 각각 한쪽에 2개씩 식립하였다, 토끼는 2주, 8주에 각각 3마리씩 희생하였고 전체 식립된 임플란트는 24개이었다. 각 시기별, 그룹별 임플란트 수는 각각 6개씩이었다. 임플란트 안정 지수(resonance frequency analysis (RFA)), 회전 제거력(Removable torque measurement (RTQ))을 희생 시기에 측정하였다. 독립표본 t-test (SPSS Ver. 15.0, Chicago, USA)을 이용하여 2주, 8주에서 대조군과 실험군의 차이를 비교 분석하고, 유의수준95%에서 통계적으로 검정하였다. 결과: 대조군과 실험군 모두 8주에서 우수한 골유착을 보였다. 특히 실험군에서 8주에 ISQ, RTQ 값 모두 대조군과 비교하여 우수한 값을 나타내었다 (P<.05). 하지만 2주에서는 두군 사이에 통계적 유의성을 보이지 않았다(P>.05). 결론: 골형성 단백질과 혈관내피세포성장인자를 임플란트 표면에 코팅하여 식립하는 것은 치유의 후반기에 골유착을 증대하는 것으로 사료된다.

Abstract

Purpose: The present study is aimed to evaluate the combined effect of recombinant human bone morphogenetic protein 2 (rhBMP-2) and recombinant human vascular endothelial growth factor (rhVEGF) coated onto anodized implants on osseointeration. Materials and methods: Six New Zealand white rabbit were used in this study. Each animal received 4 implants that were either coated with rhBMP-2 and rhVEGF (Study group) or anodized implant (Control group) in both tibia. This was performed using a randomized split-mouth design. A total 24 implants were used. The implant stability quotient (ISQ) value using resonance frequency analyser and removal torque (RTQ) measurement were investigated at 2 and 8 weeks. The t-test was used for statistical analysis (α=.05). Results: Control and study group showed good osseointegration at 8 weeks. The ISQ and RTQ values of study group were significant compared with the control group at 8 weeks (P<.05). However, No statistical significance was observed at 2 weeks (P>.05). Conclusion: It was concluded that rhBMP-2 with rhVEGF coated onto anodized implants can induce better osseointegration at late healing period.

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