1 Department of orthodontics and dentofacial orthopedics, faculty of medicine, university of Liege, Liege, Belgique; Dental biomaterials research unit, faculty of medicine, university of Liege, Liege, Belgique. Electronic address: c.charavet@gmail.com.
2 Department of periodontology and oral surgery, faculty of medicine, university of Liege, Liege, Belgique.
3 Department of orthodontics and dentofacial orthopedics, faculty of medicine, university of Liege, Liege, Belgique.
4 Medical imaging, Advimago, center for advanced oral imaging, Brussels, Belgique.
5 Department of orthodontics and dentofacial orthopedics, faculty of medicine, university of Marseille, 13385 Marseille, France.
6 Department of periodontology and oral surgery, faculty of medicine, university of Liege, Liege, Belgique; Dental biomaterials research unit, faculty of medicine, university of Liege, Liege, Belgique.