2) Chen S.T., Wilson T.G.Jr., Kammerle C.H. : Immediate or early placement of implants following tooth extraction ; review of biologic basis, clinical procedures, and outcomes. Int Oral Maxillofac Implants. 2004;19 Supp1:12-25.
3) Salama H, Salama MA, Garber D, Adar P.: The interproximal height of bone ; a guidepost to predictable aesthetic strategies and soft tissue contours in anterior tooth replacement. Periodontics Aesthet Dent. 1998;10(9)1 131-1141.