REPAIR BOND STRENGTH OF AN AGED/NON-AGED GLASS HYBRID RESTORATIVE WITH DIFFERENT MATERIALS


Meral E., Uslu A., Yazıcı A. R.

Clinical Dentistry and Research, vol.45, no.2, pp.78-85, 2021 (Peer-Reviewed Journal)

  • Publication Type: Article / Article
  • Volume: 45 Issue: 2
  • Publication Date: 2021
  • Journal Name: Clinical Dentistry and Research
  • Journal Indexes: TR DİZİN (ULAKBİM)
  • Page Numbers: pp.78-85

Abstract

Background and Aim: To evaluate the tensile bond strength of an aged/non-aged glass hybrid restorative repaired with different restorative materials. Methods: A total of 60 beam-shaped specimens (16x2x2 mm) were prepared using glass-hybrid restorative material (Equia Forte, GC) and then divided into two main groups (n=30); I-nonaged, II-aged (5000X;5-55°C). Twelve specimens from each group were left intact for control group (without repair) and the rest 18 specimens were sectioned into two halves acquiring 36 beams. The groups (I and II) were then subdivided into four groups according to the repairing materials (n=12); a- control (Intact glass hybrid (GH), Equia Forte (GC Co.), b- glass hybrid, Equia Forte, c- a resin modified glass ionomer cement (RMCIS), Riva Light Cure (SDI Limited), d- a microhybrid resin composite (CR), Gradia direct posterior (GC Co.) After 24 h storage, the specimens were subjected to tensile bond strength test and the data were analyzed using two-way ANOVA and Bonferroni test (p<0.05). Results: The tensile bond strength of the artificially aged group repaired with resin composite, Gradia Direct Posterior was found to be significantly higher than non-aged group (p<0.05). No statistically significant difference was found between aged and non-aged groups for the rest of the materials (p>0.05). There was no statistically significant difference between the repairing materials and control group regardless of aging (p>0.05). Conclusion: The tested glass-hybrid restorative material exhibited better tensile bond strength after artificial aging when repaired with resin composite. Aging did not affect the bond strength of glass-hybrid material when repaired with the glass-ionomer based restorative materials.