Evaluation the influence of the use of silane coupling agent application as a separate step versus application of silane or acid resistance silane containing adhesives on the clinical performance of repaired posterior resin composite restorations according to Modified United States Public Health Service (USPHS) criteria over one year.
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Marginal adaptation
Timeframe: T0= Baseline 24 hours postoperative. T1= 6 months follow up. T2= 12 months follow up.