Post-operative Sensitivity

* The aim of this study is to compare the effectiveness of Gluma desensitizer in reducing post-operative sensitivity following composite restorations in posterior teeth. -Patients visiting OPD will be selected after fulfilment of inclusion criteria. Patients aged 18-45 meeting inclusion criteria and presenting with active primary class I carious lesions on vital molar teeth with ICDAS score 3 will be randomly assigned into two groups: -Group A: Patients will be provided with Gluma desensitizer, Universal Bonding agent and Composite restoration and -Group B: Patients will receive Universal bonding agent and Composite restoration. -The progress of treatment will be followed up immediately (baseline) and at regular follow up visits at 1 week, 1 month and 3 months. * Post-operative sensitivity will be assessed using an air stimulus and rated on a numeric rating scale for post-operative sensitivity assessment ranging from 0 to 10.