Professor Maurice Mommaerts received his postgraduate surgical training and education in Zurich, Switzerland (for cranio-maxillo-facial surgery), in Leuven, Belgium (for head and neck surgery and oro-maxillo-facial surgery), in Miami, Florida (for plastic surgery) and in Nancy, France (for maxillo-facial and plastic facial surgery).

He obtained a doctor degree in medicine from the Catholic University of Leuven in 1984 (MD), a doctoral degree from the University of Zurich in 1990, and a doctor of philosophy degree from the University of Ghent in 2003. 

With the face as his domain, he divides his interests between patient specific implant surgery (TMJ total joint replacement, AMSJI, facial contouring implants), cosmetic rejuvenation surgery, surgical correction of congenital abnormalities (such as cleft & craniofacial surgery), transgender surgery, the surgical correction of developmental facial abnormalities (orthognathic-orthofacial surgery).