1. Dental Implants: Benefit and Risk. An NIH-Harvard Consensus Development Conference;Schnitman,1980
2. Design criteria for dental implants;Grenoble,1974
3. Dental implant design: A critical review;Mohammed;J Oral Implantol,1979
4. Fundamental and clinical studies on endosseous implant of new sapphire (Al2O3) material;Yamane;J Oral Implantol,1979
5. The single-crystal sapphire endosteal dental implant: Material characteristics and 18-month experimental animal trials;McKinney;J Prosthet Dent,1982