title: Influence of the bracket on bonding and physical behavior of orthodontic resin cements.
abstract: The aim of the study is to determine the influence of the type of bracket, on bond strength, microhardness and conversion degree (CD) of four resin orthodontic cements. Micro-tensile bond strength (µTBS) test between the bracket base and the cement was carried out on glass-hour-shaped specimens (n=20). Vickers Hardness Number (VHN) and micro-Raman spectra were recorded in situ under the bracket base. Weibull distribution, ANOVA and non-parametric test were applied for data analysis (p<0.05). The highest values of ή as well as the β Weibull parameter were obtained for metallic brackets with Transbond™ plastic brackets with the self-curing cement showing the worst performance. The CD was from 80% to 62.5%.
authors.affiliation: Department of Stomatology, Campus de Cartuja, University of Granada.
authors.forename: Victoria
authors.initials: V
authors.lastname: Bolaños-Carmona
authors.forename: Bilal
authors.initials: B
authors.lastname: Zein
authors.forename: Mario
authors.initials: M
authors.lastname: Menéndez-Núñez
authors.forename: Purificación
authors.initials: P
authors.lastname: Sánchez-Sánchez
authors.forename: Laura
authors.initials: L
authors.lastname: Ceballos-García
authors.forename: Santiago
authors.initials: S
authors.lastname: González-López
mesh_terms: D003738:Dental Cements / Q000737:chemistry*; D004868:Equipment Failure; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D016910:Orthodontic Brackets; D012117:Resins, Synthetic / Q000737:chemistry*; D013059:Spectrum Analysis, Raman / Q000379:methods; D013314:Stress, Mechanical; D013499:Surface Properties; D013718:Tensile Strength
chemical_list: D003738:Dental Cements; D012117:Resins, Synthetic