Background: Reducing the post–operative complications like pain, swelling and trismus after impacted third molar surgery seems an essential goal. Among various agents used to reduce post–operative discomfort, promote healing at the site and have no unwanted side effects which could compromise the healing; Surgical Drain is one of them.

Aim: To assess and evaluate, clinical efficacy of surgical drain on post–operative discomfort in extraction of impacted mandibular third molars.

Materials and methods: 40 systemically healthy subjects in age range of 20–40 years, requiring extraction of impacted mandibular third molars were divided into two groups. Pain, Trismus and Facial Swelling was evaluated at baseline and on second, third and seventh post–operative days.

Results: Significant difference in the mean Pain, Trismus and Facial Swelling Scores between the Test and Control Groups. (p value <0.05).