Healing patterns after guided bone regeneration in human extraction sockets

인간의 발치와 내에서 골유도재생술 후의 치유양상

  • Jang, Hyun-Seon (Department of Periodontology, College of Dentistry, Chosun University, Oral Biology Research Institute, College of Dentistry, Chosun University) ;
  • Yeom, Chang-Yeob (Department of Periodontology, College of Dentistry, Chosun University) ;
  • Park, Joo-Cheol (Department of Oral Histology, College of Dentistry, Chosun University, Oral Biology Research Institute, College of Dentistry, Chosun University) ;
  • Kim, Su-Gwan (Department of Oral and Maxillofacial Surgery, College of Dentistry, Chosun University, Oral Biology Research Institute, College of Dentistry, Chosun University) ;
  • Kim, Heung-Joong (Department of Oral Anatomy, College of Dentistry, Chosun University, Oral Biology Research Institute, College of Dentistry, Chosun University) ;
  • Kook, Joong-Ki (Department of Oral Biochemistry, College of Dentistry, Chosun University, Oral Biology Research Institute, College of Dentistry, Chosun University) ;
  • Kim, Chong-Kwan (Department of Periodontology, College of Dentistry, Yonsei University) ;
  • Kim, Byung-Ock (Department of Periodontology, College of Dentistry, Chosun University, Oral Biology Research Institute, College of Dentistry, Chosun University)
  • 장현선 (조선대학교 치과대학 치주과학교실, 조선대학교 치과대학 구강생물학연구소) ;
  • 염창엽 (조선대학교 치과대학 치주과학교실) ;
  • 박주철 (조선대학교 치과대학 구강조직학교실, 조선대학교 치과대학 구강생물학연구소) ;
  • 김수관 (조선대학교 치과대학 구강악안면외과학교실, 조선대학교 치과대학 구강생물학연구소) ;
  • 김흥중 (조선대학교 치과대학 구강해부학교실, 조선대학교 치과대학 구강생물학연구소) ;
  • 국중기 (조선대학교 치과대학 구강생화학교실, 조선대학교 치과대학 구강생물학연구소) ;
  • 김종관 (연세대학교 치과대학 치주과학교실, 연세대학교 치과대학 치주조직 재생연구소) ;
  • 김병옥 (조선대학교 치과대학 치주과학교실, 조선대학교 치과대학 구강생물학연구소)
  • Published : 2005.12.31

Abstract

이 연구는 임플란트를 식립하기를 원하는 전신건강상태가 양호하며 구강위생상태가 좋은 14명 환자(남자:8명, 여자:6명, 평균나이 : 44세)의 20개의 발치와 내에 흡수성 차폐막(BioMesh. Sam Yang Corporation, Korea)과 함께 탈회냉동 건조동종 골(dem-ineralized freezedried bone allografts, $250-500{\mu}m$. Pacific Coast Tissue Bank, U.S.A.)과 이종골(Bovine-Bone, Bio-Oss 0.25-1.0 mm, Geistlich, Biomaterials and Osteohealth, Switzerland)을 1:1(부피)로 혼합하여 이식한 후 그 치유양상을 관찰하고자 조직학적 및 면역조직화학적으로 평가하였다. 이직재가 탈락되는 것을 방지하기 위하여 발치한 후 1개윌이 경과된 후에 이식재와 차폐막을 위치시켰다. 표본제작을 위하여 이식술을 시행한 지 약 6개윌 후에 임플란트를 식립하기 직전 식립부위에서 trephine bur로 골을 채취하였는데, 20증례 중 7증례에서 임플란트를 식립하기 전에 차폐막이 노출되었다. 차폐막이 노출되지 않은 것을 대조군으로, 노출된 것을 실험군으로 설정하였다. 조직학적인 관찰을 위하여 통상적인 방법에 따라 탈회 표본을 제작하였고, alkaline phosphotase(ALP)틀 이용하여 면역조직화학적 염색을 시행한 후 골 형성 상태를 평가하여 다음과 같은 결과를 얻었다. 본 연구에서는 발치와내에서 골유도재생술 후 나타나는 치유 형태를 5가지 형태로 분류할 수 있었다. Type I, II와 III는 새로운 골 형성을 나타내지 않았고, 면역조직화학적 검사 시 ALP 음성 소견을 나타내었다. Type V는 새로운 골 형성과 ALP 양성 소견을 나타내었으나 염증, 괴사, 결합조직의 증식 등은 없었다. Type IV와 Type V의 차이는 결합조직의 증식여부로 구분되었다. 막이 노출되지않은 증례들 중 7 증례에서는 Type V의 치유 형태를, 2증례에서는 Type IV의 치유 형태를 나타내었다. 막이 노출되었던 증례에서는 Type I, II, III의 다양한 치유 형태를 나타내었다. 본 연구결과, 발치와 내에 골유도재생술을 시행한 후 차폐막의 노출 여부가 신생골 형성에 중요한 영향을 미칠 것으로 사료되며, 본 연구에서 분류한 치유 형태가 향후 골유도재생술 후의 결과 분석에 활용될 수 있을 것으로 사료된다.

Keywords

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