1Bickord Jh.An introduction to the design and behavior of bolted joints.New York,Marcel Dekker Inc,1981:528
2Kennet S,Reena C.Cemment-retained versus screw-retained implant restorations:Achieving optional occlusion and esthetics in implant dentistry[J].J Prosthet Dent,1997,77:28
3Jaarda MJ,Razzoog ME,Gratlon DG.Geomettic comparision of five interchangeable implant retainingscrews[J].J Prosthet Dent,1995,74(3):373
4Burguete RL,Johns RB,King T,et al.Tightening characteristics for screwed joints in osseointegrated dental implants[J].J Prosthet Dent,1994,71(6):592
5Carr A,Larsen P,Papazaglou E,et al.Reverse torque failure of screw-shaped implants in baboons:baseline data for abutment torque application.Int J Oral Maxillofac Surg,1995,10:167
6周磊.口腔种植学临床实践.西安:世界图书出版公司,2004:164
7Aboyousswf H,Weiner S,Ehrenberg D.Effect of an antirotation resistance form on screw loosening for single implant-supported crowns[J].J Prosthet Dent,2000,83:450
8Palmer R.Introduction to dental implants[J].J Bri Dent,1999,187:127
9Binon pp.The spline implant design,engineering and evaluation[J].J Prosthodont,1996,9:419
10English CE.External hexed implants,abutments,and transfer devices:a comprehensive overview[J].Implant Dent,1992,1:273
