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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Socket preservation ： ウィキペディア英語版 Socket preservation Socket preservation or alveolar ridge preservation (ARP) is a procedure to reduce bone loss after tooth extraction to preserve the dental alveolus (tooth socket) in the alveolar bone. A platelet rich fibrin (PRF) membrane containing bone growth enhancing elements is placed in the wound or a bone grafting material or scaffold is placed in the socket of an extracted tooth at the time of extraction.〔(Tassos Irinakis, Rationale for Socket Preservation after Extraction of a Single-Rooted Tooth when Planning for Future Implant Placement, Journal of Canadian Dental Association 2006; 72(10):917–922 )〕 The socket is then directly closed with stiches or covered with a non-resorbable or resorbable membrane and sutured.〔(Extraction socket preservation: The time is now )〕 After extraction, jaw bone has to be preserved to keep the socket in its original shape. Without socket preservation, the bone quickly resorbs resulting in 30-60% loss in bone volume in the six months after dental extraction. The jaw bone will never revert to its original shape once bone is lost and tissue contour has changed. The human body reduces the amount of bone that is not sufficiently used with a daily stress; without the strain stimulus, the jaw bone behaves (with or without socket preservation) as if the space occupied by the tooth and periodontal ligament was empty. ==Membrane== A platelet rich fibrin〔(Role of platelet rich fibrin in wound healing: A critical review )〕 membrane is a membrane to prevent epithelial cell migration into the grafted area, it prevents bacterial colonization, contains growth factors (PDGF, IGF-I, VEGF, and TGFb) and living cells and allow perfusion of gases and recruitment of stem cells from periosteum. PRF is a second generation autologous platelet derivative of platelet-rich plasma. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Socket preservation」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.