1. The long term efficacy of currently used dental implants: a review and proposed criteria of success;Albrektsson;Int J Oral Maxillofac Implants,1986
2. A retrospective multicenter evaluation of the survival rate of osseointegrated fixtures supporting fixed partial prostheses in the treatment of partial edentulism;van Steenberghe;J Prosthet Dent,1989
3. The applicability of osseointegrated oral implants in the rehabilitation of partial edentulism: a prospective multicenter study of 558 fixtures;van Steenberghe;Int J Oral Maxillofac Implants,1990
4. Survival of the Brånemark implant in partially edentulous jaws: a 10-year prospective multicenter study;Lekholm;Int J Oral Maxillofac Implants,1999
5. A prospective 15-year follow-up study of mandibular fixed prostheses supported by osseointegrated implants. Clinical results and marginal bone loss;Lindquist;Clin Oral Implants Res,1996