성견에서 방치 직후 Hydroxylapatite의 축조와 조직 유도 재생술이 발치와의 골조직 치유에 미치는 영향
Effect of hydroxylapatite syntetic raft and guided tissue regeneration technique on healing of extraction socket in mongrel dogs
한동후, 심준성,
소속 상세정보
한동후 ( Han Dong-Hoo ) - 연세대학교 치과대학 치과보철학교실
심준성 ( Shim June-Sung ) - 연세대학교 치과대학 치과보철학교실
KMID : 0362419960340010187
Abstract
After loss of tooth, initial healing process is critical to preserve residual alveolar process, This study was conducted to compare the effect of hydroxylapatite particle synthetic graft and guided tissue regeneration procedure on healing of
extraction wounds in 5 mongrel dogs. To investigate the maturity of bone and velocity of bone healing, bone-labeled tracers were used. After 16 weeks healing period, dogs were sacrificed. The specimens were treated with Villanueva bone stain. Fluorescence microscopy and polarized microscopy were performed to exam the pattern of bone formatio in the extraction socket. @ES The results were following ; @EN 1. Pattern of bone regeneration in the group of hydroxylapatie graft and the group of membrane protection after hydroxylapatite graft was following ; bone regeneration was slow, regenerated bone was immature, and thickness of cortical layer was thin compare to that of untreated control group. 2. Cortical layers in membrane protected group were somewhat thicker but less condense to that of untreated control group. 3. Infiltration of inflammation cells were found in the groups using hydroxylapatite graft and membrane. We concluded that grafting of replamineform hydroxylapatite particles into the extraction socket delayed healing of the wound and disturbed the formation of cortical bone at the roof of extraction socket. The placement of expanded polytetrafluoroethylene membranes on the extraction socket promotes the bone regeneration. But newly formed bone in cortical layer consists of the cortico-cancellous bone in comparison with the cortical bone of the control group.
키워드
원문 및 링크아웃 정보
등재저널 정보