1. Osseointegrated implants in the treatment of the edentulous jaw. Experience from a 10-year period;Branemark;Scand J Plast Reconstr Surg Suppl,1977
2. The effect of all-ceramic and porcelain-fused-to-metal restorations on marginal peri-implant soft tissue color: A randomized controlled clinical trial;Jung;Int J Periodontics Restor Dent,2008
3. The effect of zirconia and titanium implant abutments on light reflection of the supporting soft tissue.;Van Brakel;Clin Oral Implants Res,2011
4. A review of the surface modifications of titanium alloys for biomedical applications;Manjaiah;Materiali in Tehnologie,2017
5. Influence of abutment material on the gingival color of implant-supported all-ceramic restorations: A prospective multi-center study;Bressan;Clin Oral Implants Res,2011