A Study on Tooth Sensitivity After Dental Fillings Using Self-Etch and Total-Etch Adhesives

Group A (Self-Etch Adhesive): Patients in this group will receive Class I composite restorations using a self-etch adhesive system (Prime Dental, USA). The adhesive will be applied for 20 seconds and light-cured for 10 seconds according to the manufacturer’s instructions. Composite resin (Ezfil Dental Composite Resin) will be placed incrementally and light-cured for 20 seconds per increment. Finishing will be done using diamond burs. The self-etch adhesive will be applied once during a single restorative procedure (approximately 1 hour) on posterior teeth with Class I caries. A bottled self-etch bonding agent (Prime Dental USA) will be applied directly to the prepared cavity using a disposable micro-brush for 20 seconds and then light cured for 10 seconds, according to the manufacturer’s instructions. A qualified dentist (operator) will perform the procedure under rubber dam isolation in a dental operatory setting. Adherence will be ensured by direct observation of the procedure by the operator and documented in patient records. Postoperative sensitivity will be monitored and recorded using a Visual Analogue Scale (VAS) 24 hours after treatment and during follow-up.