Dental restorations are aimed to protect and restore the normal function and esthetics of teeth, which is the daily bread and butter
of a dental practitioner. To achieve these purposes, various types of restorative as well as lining materials have been used over the
years. The aim of the research was to determine the prevalence of post-operative pain among the patients visiting REU and the
causative factors associated with post-operative sensitivity. This was an observational study, which was conducted among the
patients visiting the REU clinics and ethical as well as clinical approval was taken. The class II restorations were placed by dental
interns and the procedure was carried out using carbide 330 burs, tofflemire matrix, and total etching technique with universal 3M
bonding. The depth of the cavity was measured by the radiograph. Postoperative sensitivity increased with the increase in cavity
depth. Patients with liner used during their composite restorations reported more postoperative sensitivity as compared to patients
without liner. The most common aggravating factor causing pain was found to be hot & cold. Majority of the participants
experienced pain of short duration. Overall, the severity of pain was low.
Keywords: Class II restoration, Sensitivity, Post operative pain