title: Clinical comparison between a modified light-curing denture base resin and a conventional composite resin for orthodontic bonding.
abstract: The purpose of this in vivo study was to evaluate and compare the bond failure rate of a modified visible light-cured denture base resin (Triad VLC Provisional Material; Dentsply International Inc., York, PA) with that of a conventional visible light-cured composite resin (Transbond XT; 3M/Unitek, Monrovia, CA) for the bonding of orthodontic brackets. Both adhesives were used in each patient following a split-mouth design. Thirty-five consecutive patients with fixed appliances were included in the study, and the performance of 655 stainless steel brackets was evaluated: 325 brackets were bonded with the modified Triad VLC resin and 330 were bonded with Transbond XT resin. The incidence and site of bond failures were recorded over a period of 12 months. The overall failure rate of Triad VLC (4.3%) was not significantly different (p>0.05) from that of Transbond XT (3.6%). No significant differences in the failure rates of upper and lower arches within each material or between the two materials were found (p>0.05). Transbond XT showed a significantly higher failure rate (p<0.05) in the anterior (4.8%) than in the posterior teeth (1.6%). The present findings demonstrate that Triad VLC could be used as an alternative bonding material for direct bonding of orthodontic brackets.
authors.affiliation: The Royal Dental College, Department of Orthodontics, University of Aarhus, Aarhus, Denmark. lucia_rizzo@yahoo.com
authors.forename: Lucia
authors.initials: L
authors.lastname: Rizzo
authors.forename: Vittorio
authors.initials: V
authors.lastname: Cacciafesta
authors.forename: Birte
authors.initials: B
authors.lastname: Melsen
mesh_terms: D000180:Acrylic Resins; D000293:Adolescent; D000328:Adult; D017438:Bisphenol A-Glycidyl Methacrylate; D002484:Cementation; D003799:Dental Stress Analysis; D003819:Denture Bases; D019544:Equipment Failure Analysis; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D016910:Orthodontic Brackets
chemical_list: D000180:Acrylic Resins; C060386:Triad resin; C065742:Transbond; D017438:Bisphenol A-Glycidyl Methacrylate