2Lazzara RJ.Immediate implant placement into extraction sites:surgical and restorative advantages.Int J Periodontics Restorative Dent,1989,9(5):332-343.
3Zahedi S,Legrand R,Brunel G,et al.Evaluation of a diphenylphosphorylazide-crosslinked collagen membrane for guided bone regeneration in mandibular defects in rats.J Periodontol,1998,69 (11):1238-1246.
4Avera SP,Stampley WA,McAIlister BS.Histologic and clinical observations of resorbable and nonresorbable barrier membranes used in maxillary sinus graft containment.Int J Oral Maxillofac Implants,1997,12(1):88-94.
5Chung CP,Kim DK,Park YJ,et al.Biological effects of drug -loaded biodegradable membranes for guided bone regeneration.J Periodontal Res,1997,32 (1):172-175.
6Bragger U,Hammerle CH,Lang NP.Immediate transmucosal implants using the principle of guided tissue regeneration (Ⅱ).A cross-sectional study comparing the clinical outcome 1 year after immediate to standard implant placement.Clin Oral Implants Res,1996,7(3):268-276.
7Gomez-Roman G,Schulte W,d'Hoedt B,et al.The Frialit-2 implant system:five-year clinical experience in single-tooth and immediately postextraction applications.Int J Oral Maxillofac Implants,1997,51(3):299-309.
9[1]Branemark PI. Osseointegration and its experimental bac kground[J]. J Prosthet Dent, 1983,50:399.
10[2]Becker W, Becker BE. Guided tissue regeneration for implants placed into extraction sockets and for implant dehiscences: surgical techniques and case report[J]. Int J Periodontics Restorative Dent, 1990,10(5):376.
7Dahin C, Sennerby L, Lekholm U, et al, Generation of new bone around Titanium using a membrane technique: an experiment study in rabbits [J]. Int J Oral Maxillofae Implants, 1989, 4(1):19-25.
8Yukna RA, TurnerDW, Robinson LJ. Variable antigenicity of lyophilized allogeneic and lyophilized xenogeneic skin in guinea pigs [J]. J Peridontal Res, 1977, 12(3) : 197-203.
9Luczyszyn SM, Papalexiou V, Novaes AB Jr, et al. Aellular dermal matrix and hydroxyapatite in prevention of ridge deformities after tooth extraction [J]. Implant Dent, 2005, 14 (2) : 176-184.
10Park SH, Lee KW, Oh TJ, et al. Effect of absorbable membranes on sandwich bone augmentation [J]. Clin Oral Implants Res, 2008, 19(1) : 32-41.