1. Consensus statements and recommended clinical procedures regarding esthetics in implant dentistry;Belser;Int J Oral Maxillofac Implants,2004
2. The esthetic dental implant: letting restoration be the guide;Garber;J Oral Implantol,1996
3. Aesthetic versus surgical success of single dental implants: 1- to 9-year follow-up;Levin;Pract Proced Aesthet Dent,2005
4. The influence of soft tissue thickness on crestal bone changes around implants: a 1-year prospective controlled clinical trial;Linkevicius;Int J of Oral Maxillofac Implants,2009
5. Reaction of crestal bone around implants depending on mucosal tissue thickness. A 1-year prospective clinical study;Linkevicius;Stomatologija,2009