The effect of Ca-P coated bovine bone mineral on bone regeneration around dental implant in dogs

개 모델에서의 임플란트 주위 골결손시 Ca-P 표면 처리된 이종골의 효과

  • Cho, Su-Yeon (Department of Periodontology, Graduate School of Clinical Dentistry, Ewha Womans University) ;
  • Jeon, Hye-Ran (Department of Periodontics, Ewha Medical center, Mokdong Hospital, Ewha Womans University) ;
  • Lee, Sun-Kyoung (Department of Periodontology, Graduate School of Clinical Dentistry, Ewha Womans University, Department of Periodontics, Ewha Medical center, Mokdong Hospital, Ewha Womans University) ;
  • Lee, Seoung-Ho (Department of Periodontology, Graduate School of Clinical Dentistry, Ewha Womans University, Department of Periodontics, Ewha Medical center, Mokdong Hospital, Ewha Womans University) ;
  • Lee, Jun-Young (Department of Periodontics, Ewha Medical center, Mokdong Hospital, Ewha Womans University) ;
  • Han, Geum-A (Department of Periodontics, Ewha Medical center, Mokdong Hospital, Ewha Womans University)
  • 조수연 (이화여자대학교 임상치의학대학원 치주과학교실) ;
  • 전혜란 (이화여자대학교 부속 목동병원 치주과) ;
  • 이선경 (이화여자대학교 임상치의학대학원 치주과학교실, 이화여자대학교 부속 목동병원 치주과) ;
  • 이승호 (이화여자대학교 임상치의학대학원 치주과학교실, 이화여자대학교 부속 목동병원 치주과) ;
  • 이준영 (이화여자대학교 부속 목동병원 치주과) ;
  • 한근아 (이화여자대학교 부속 목동병원 치주과)
  • Published : 2006.12.31

Abstract

목적 : 최근 발치 후 즉시 임플란트 식립은 널리 사용되는 수술 방식이다. 이 연구의 목적은 임플란트 주위 골결손시 Ca-P으로 표면 처리된 이종골을 사용하여 골재생을 평가하기 위함이다. 재료와 방법 : 두 마리의 개 모델에서 하악 소구치와 제일 대구치를 발치하였다. 발치 6주 후 trephine bur를 이용하여 7.5 mm 지름과 5 mm 깊이를 가진 결손부를 형성하였다. 이 후 이 결손부의 중앙에 3.5 mm 지름과 15mm 길이의 fixture(GS II)를 식립하였다. 결과적으로 임플란트와 주변을 둘러싸고 있는 골 사이에는 2.0 mm정도의 gap이 만들어진다. 준비된 결손부 내로 자기골 또는 $Biocera^{(R)}$를 채웠다. 각각 4주, 8주 후 조직 절편을 제작하였다. 조직학적 평가를 위해 Block biopsy를 시행하였다. 결과 : 두 집단 모두 임상적으로 골이 완전히 채워졌다. 자가골이 이식된 부위(control)의 평균 골-임플란트 접촉(BIC)은 각각 4주째 $28.2{\pm}19%$였고, 8주째 $44.9{\pm}9%$였다. $Biocera^{(R)}$가 이식된 부위(test)의 평균 BIC는 각각 4주째 $34.6{\pm}27%$였고, 8주째 $27.6{\pm}23%$였다. 자가골이 이식된 부위(control)의 평균 골밀도는 각각 4주째 $32.7{\pm}25%$, 8주째 $37.4{\pm}17%$였다. 골-임플란트 접촉(BIC)과 골밀도의 평균 비율(%)은 비슷하였다. 조직학적으로 자가골과 이종골 이식 부위 모두 주변골과 잘 조화를 이루었고 유사한 치유 양상이 관찰되었다. 자가골과 이종골 이식 부위간 유의한 차이는 없었다.(P>0.05) 결론 : 임플란트 주위 2 mm의 골 결손부위에 자가골 또는 이종골로 채운 경우 유사한 결과를 얻었다. 이 결과 임플란트 fixture 주위의 골 결손부 해소를 위해 자가골을 대체할 수 있는 재료로 $Biocera^{(R)}$를 사용할 수 있음을 보여준다.

Keywords

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