title: [Commentary on "Massive sinus-lift procedures with beta-tricalcium phosphate: long-term results"].
authors.affiliation: Service de chirurgie maxillofaciale et de stomatologie, hôpital Albert-Michallon, BP 217, 38043 Grenoble, France. gbettega@chu-grenoble.fr
authors.forename: G
authors.initials: G
authors.lastname: Bettega