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Acta Odontológica Latinoamericana

versão On-line ISSN 1852-4834


MELOTO, Carolina B et al. Effect of surface treatments on the bond strength of different resin teeth to complete denture base material. Acta odontol. latinoam. [online]. 2013, vol.26, n.1, pp.37-42. ISSN 1852-4834.

Although different commercial brands of artificial teeth are available in the market, debonding from the denture base is still an issue when rehabilitating edentulous patients with conventional or implant-supported complete dentures. The purpose of this study was to investigate the effect of surface treatments on the bond strength of four artificial teeth brands to a denture base material polymerized by microwave energy. Forty anterior artificial teeth of each brand (BioluxR, TriluxR, Biotone IPNR, and Vipi Dent PlusR) were bonded to denture base material (VipiWaveR). Before processing, groups of ten specimens of each brand received surface treatment: control, monomer application (MA), air abrasion (AA) or diatoric cavity (DC). After processing, a blinded examiner conducted the bond test by applying load to the specimens (0.5 mm/min, to 45°). Data were analyzed by one-way ANOVA followed by Tukey's test (a=0.05). BioluxR teeth have stronger bonding to denture base than TriluxR (p<0.05) in control group; higher bond values than Biotone IPNR (p<0.05) in MA group; and higher bond strength than Vipi Dent PlusR and TriluxR (p<0.01) in DC group; AA had no differential effect for any of the brands. With regard to the effect of the surface treatments on bond strength within groups of commercial brand, statistical analysis revealed no difference among them. According to results in general, BioluxR teeth had the strongest bonding to the denture base material polymerized by microwave energy. Results may assist dentists in selecting denture teeth from the standpoint of shear bond strength.

Palavras-chave : Artificial teeth; Acrylic resins; Surface properties.

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