1-Year Clinical Evaluation of Microhybrid Composites used in the Restoration of Non-Carious Cervical Lesions.
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Aim: Microhybrid composite resins are commonly used to treat non-carious cervical lesions. The aim of this double blind study was to compare the 12-month clinical performance of cervical restorations placed with the use of two different microhybrid composite resins. Methods: 20 patients with at least one pair of non-carious cervical lesion participated in this study. Ninety-seven cervical lesions were restored with either TPH Spectrum (n=48) or Filtek Z250 (n=49) using a two-step etch & rinse adhesive (Single Bond 2) Restorations were evaluated using modified USPHS criteria after 6 and 12 months. The statistical comparison of resin composites for each category was performed with the Pearson chi square test and the performance of restorations at the baseline, 6 months and after 12 month recall time was evaluated by Mc Nemar’s test (p<0.05). Results: The recall rate of the patients was 100% at each evaluation period. The retention rates were 100% at six months,89,6% and 91,8% at 12-months for TPH and Z250, respectively and no statistically significant difference was observed with respect to each evaluation criteria (p>0.05). Conclusion: Cervical restorations placed with two different microhybrid composites and a two-step etches and rinse system showed satisfactory clinical performance after 12-months.