title: Carbon dioxide laser application enhances the effect of silane primer on the shear bond strength between porcelain and composite resin.
abstract: The purpose of this study was to evaluate the effect of carbon dioxide laser irradiation on the performance of silane coupling agent as an adhesion promoter. The carbon dioxide laser used in this study was Opelaser 03S II, which irradiated the silane coupling agent applied on the adhesive surface of porcelain. Before and after thermal cycling, shear bond strength was measured using a universal testing machine. Without primer treatment, most of the specimens failed adhesively before reaching the end of the thermal cycling period. For the specimens irradiated with carbon dioxide laser after primer treatment, their shear bond strengths before and after thermal cycling were higher than those treated with primer only -with a significantly pronounced difference between these two groups especially after thermal cycling. Therefore, a combined surface treatment which involved silane application followed by laser treatment was feasible and efficacious for chairside porcelain repair.
authors.affiliation: Department of Prosthodontics, School of Stomatology, Tongji University, Shanghai, P.R. China.
authors.forename: Jian-Rong
authors.initials: JR
authors.lastname: Chen
authors.forename: Kenji
authors.initials: K
authors.lastname: Oka
authors.forename: Takanori
authors.initials: T
authors.lastname: Kawano
authors.forename: Takaharu
authors.initials: T
authors.lastname: Goto
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Ichikawa
mesh_terms: D000268:Adhesiveness; D003188:Composite Resins / Q000737:chemistry / Q000528:radiation effects*; D001840:Dental Bonding; D045662:Dental Etching / Q000379:methods; D003764:Dental Materials / Q000737:chemistry*; D003776:Dental Porcelain / Q000528:radiation effects*; D003799:Dental Stress Analysis / Q000295:instrumentation; D005240:Feasibility Studies; D006801:Humans; D054020:Lasers, Gas; D008422:Materials Testing; D019279:Resin Cements / Q000737:chemistry; D033081:Shear Strength; D012821:Silanes / Q000528:radiation effects*; D013059:Spectrum Analysis, Raman; D013314:Stress, Mechanical; D013499:Surface Properties; D013696:Temperature
chemical_list: D003188:Composite Resins; D003764:Dental Materials; C074806:Imperva-Bond; C083468:Lite-fil CR; D019279:Resin Cements; D012821:Silanes; D003776:Dental Porcelain