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GUIDED TISSUE REGENERATION AROUND DENTAL IMPLANTS IN IMMEDIATE EXTRACTION SOCKETS: COMPARISON OF RESORBABLE AND NONRESORBABLE MEMBRANES
引用本文:毛驰 SatoJunichi MatsuuraMasaroh SetoKanichi.GUIDED TISSUE REGENERATION AROUND DENTAL IMPLANTS IN IMMEDIATE EXTRACTION SOCKETS: COMPARISON OF RESORBABLE AND NONRESORBABLE MEMBRANES[J].中国医学科学杂志,1997,12(3):170-174.
作者姓名:毛驰  SatoJunichi  MatsuuraMasaroh  SetoKanichi
作者单位:[1]DepartmentofOralandMaxillofacialSurgery,PekingUnionMedicalCollegeHospital,Beijing,100730China [2]FirstDepartmentofOralandMaxillofacialSurgery,TsurumiUniversitySchoolofDentalMedicine,Yokohama230,Japan
摘    要:This study was performed to compare the efficacy of guided tissue regeneration (GTR) around dental implants immediately placed into extraction sockets by resorbable of nonresorbabla membranes. Mandibular P2, P3, and P4 of four adult beagle dogs were extracted bilaterally, and bueeal standard defects were created and measured. Eighteen commercially pure titanium Steri-Oss implant fixtures were placed into the fresh extraction sockets. Four implants were untreated controls, four implants received polytetrafluoroethylene (e-PTFE, Gore-Tex) membranes, five implants received collagen membranes (ParaGulde), and five implants received polyglaetin 910 mesh (Vicryl). After ]4 weeks, clinical measurements were taken and the dogs were sacrificed and all specimens retrieved for hlstologic and histomorphometric evaluation.The average gain in bone height wss 2. lmm for untreated control sites. 3.3ram for Gore-Tex sites,3. 8mm for collagen sites, and 1.3mm for polyglactin 910 sites. The greatest gain in bone height and volume was seen for two sites that received Gore-Tex membranes and remained covered for the entire evalualion interval, The results of this study indicate that Gore-Tex and collagerL membrane produced good results for GTR around implants immediately placed into extraction sockets. Since collagen membrane doesnot cause obvious infection and does not need the surgical reentry for membrane removal, it can be a valid alternative to Gore-Tex membrane to improve bone regeneration around dental implants, while polyglactin 910 mesh seems not suitable to be used as GTR membrane in immediate implantation for its high infection rate.

关 键 词:引导功能重建  牙种植体  再吸收  直接抽吸法

GUIDED TISSUE REGENERATION AROUND DENTAL IMPLANTS IN IMMEDIATE EXTRACTION SOCKETS:COMPARISON OF RESORBABLE AND NONRESORBABLE MEMBRANES
Mao Chi Sato Junichi, Matsuura Masaroh and Seto Kanichi.GUIDED TISSUE REGENERATION AROUND DENTAL IMPLANTS IN IMMEDIATE EXTRACTION SOCKETS:COMPARISON OF RESORBABLE AND NONRESORBABLE MEMBRANES[J].Chinese Medical Sciences Journal,1997,12(3):170-174.
Authors:Mao Chi Sato Junichi  Matsuura Masaroh and Seto Kanichi
Institution:First Department of Oral and Maxillofacial Surgery, Tsurumi University School of Dental Medicine, Yokohama 230, Japan.
Abstract:This study was per formed to compare the efficacy of guided tissue regeneration (GTR) around dentalimplants immediately placed into extraction sockets by resorbable of nonresorbable membranes. Mandibular. P2, P3, and P4 of four aduIt beagle dogs were extracted bilaterally, and buccal standard defects were cre-ated and measured. Eighteen commercially pure titanium Steri-Oss implant fixtures were placed into thefresh extraction sockets. Four implants were untreated controls, four implants received polytetrafluoro-ethylene (e-PTFE, Gore-Tex) membranes, five implants received collagen membranes (ParaGuide), andfive implants received polyglactin 910 mesh (Vicryl). After l4 weeks, clinical measurements were takenand the dogs were sacrificed and all specimens retrieved for histologic and histomorphometric evaluation.The average gain in bone height was 2. 1mm for untreated control sites, 3. 3mm for Gore-Tex sites,3. 8mm for collagen sites, and 1. 3mm for polyglactin 910 sites. The greatest gain in bone height and volume was seen for two sites that received Gore-Tex membranes and remained covered for the entire evalua-tion interval. The results of this study indicate that Gore-Tex and collagen membrane preduced gdri re-sults for GTR around Implants immediately placed into extraction sockets. Since collagen membrane doesnot cause obvious infection and does not need the surgical reentry for membrane removal, it can be a validalternative to Gore-Tex membrane to improve bone regeneration around dental implants, while polyglactin910 mesh seems not suitable to be used as GTR membrane in immediate implantation for its hIgh infectionrate.
Keywords:guided tissue regeneration  membrane  dental implants
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