1. A 15-year study of osseointegrated implants in the treatment of the edentulous jaw;Adell;Int J Oral Maxillofac Surg,1981
2. The long term efficacy of currently used dental implants: a review and proposed criteria of success;Albrektsson;Int J Oral Maxillofac Implants,1986
3. Survival and success rates with oral endosseous implants;Van Steenberghe,1991
4. 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
5. Long-term stability of osseointegrated implants in augmented bone: a 5-year prospective study in partially edentulous patients;Buser;Int J Periodont Restor Dent,2002