title: Effect of post-cure heating on the flexural strength of two indirect resin composites.
abstract: The aim of this study was to evaluate whether a post-cure heat-treatment may improve the flexural strength of two indirect resin-based composites. Tested factors were: material (Gradia Indirect, Gradia Forte), mass (opaqus dentin, dentin, enamel) and curing mode (light, light and heat). A three-point bending test appliance was developed according to ISO 4049/2000. Three-Way ANOVA and 2-Pameter Weibull cumulative distribution function were performed. Factors material and curing mode were significant (p < 0.001), while the mass type was not (p = 0.181). A post-cure heat treatment may be useful for enhancing the flexural strength of both materials.
authors.affiliation: Dipartimento di Scienze Odontostomatologiche, Policlinico Le Scotte, Viale Bracci, Siena, Italy. maurizio.sedda@gmail.com
authors.forename: Maurizio
authors.initials: M
authors.lastname: Sedda
authors.forename: Federica
authors.initials: F
authors.lastname: Papacchini
authors.forename: Paolo
authors.initials: P
authors.lastname: Salonna
authors.forename: Andrea
authors.initials: A
authors.lastname: Borracchini
authors.forename: Marco
authors.initials: M
authors.lastname: Ferrari
mesh_terms: D000704:Analysis of Variance; D003188:Composite Resins / Q000737:chemistry; D003799:Dental Stress Analysis; D006358:Hot Temperature; D008422:Materials Testing; D018583:Pliability; D016019:Survival Analysis
chemical_list: D003188:Composite Resins