Effect of Surface Treatment on the Bond Strength of Quartz Fiber-Reinforced Resin Posts to Resin Cements: In Vitro Study

• Published in: Odovtos 2017-01, Vol.19 (2), p.87
• Main Authors: Herrera-Ocampo, Luis A, Montero-Aguilar, Mauricio, Alfaro-Mayorga, Erika
• Format: Article
• Language: eng ; spa
• ISSN: 1659-1046; 2215-3411

The purpose of this study was to determine the effect of different surface treatments on the bond strength between resin cements and quartz fiber-reinforced resin posts. Materials and methods: Sixty quartz fiber-reinforced resin posts (DT Light-Post(TM), Bisco(TM)) were randomly divided into 12 experimental groups (n=5), according to the resin cement used (Biscem(TM) or Duolink(TM)) and the surface treatment: Alcohol (control group), silanized, primer, sandblasted, sandblasted + silanized or sandblasted + primer. Cylindrical resin specimens were obtained using nanohybrid resin. The posts were cemented to the resin discs and push-out tests were conducted. Data were analyzed with ANOVA and T test for averages comparison and the Tukey HSD test with a 95% level of significance. Results: Biscem(TM) cement generally showed higher bond strength when compared to Duolink(TM) Significant differences were found between the control group and the sandblasted + silane and sandblasted + primer groups when using Duolink(TM)cement. With Biscem(TM) cement, no differences between groups or with the control group were found.. Conclusion: Surface treatments on quartz fiber-reinforced resin poles seem to have no significant effect on the bond strength to resin cements, except when using Duolink(TM) cement with sandblasted posts and using silane or primer.