[1] Vrije Univ Brussel, Doctoral Sch Life Sci & Med, B-1090 Brussels, Belgium
[2] Vrije Univ Brussel, Univ Ziekenhuis Brussel, European Face Ctr, B-1090 Brussels, Belgium
[3] Gen Hosp Oudenaarde, Dept Oro Maxillo Facial Surg, B-9700 Oudenaarde, Belgium
[4] Private Clin Face Ahead Antwerp, B-2000 Antwerp, Belgium
[5] GZA Hosp, Div Oro Maxillo Facial Surg, B-2000 Antwerp, Belgium
[6] ETZ Hosp, Oral & Maxillofacial Surg, NL-5022 GC Tilburg, Netherlands
[7] AZ Alma, Dept Oro Maxillo Facial Surg, B-9900 Eeklo, Belgium
[8] Katholieke Univ Leuven, Dept Prosthet Dent, B-3000 Leuven, Belgium