1. Ceramic abutments - a new era in achieving optimal esthetics in implant dentistry;Yildirim;Int J Periodontics Restor Dent,2000
2. The Procera abutment - The fifth generation abutment for dental implants;Kucey;J Can Dent Association,2000
3. The fit of cast and premachined implant abutments;Byrne;J Prosthet Dent,1998
4. The implant-abutment interface of Alumina and Zirconia abutments;Yüzügüllü;Clin Implant Dent Relat Res,2008
5. 3 year follow-up study of early single implant restorations ad modum Bränemark;Jemt;Int J Periodontics Restorative Dent,1990