Purpose of the study:- Purpose of present study is to review the update in various flap designs and their influence on outcome in third molar surgery.rnMaterial and Methods:- Literature was selected through a search of electronic databases. The keywords used for search were mandibular third molar, impacted mandibular third molar, mandibular third molar flap design, mandibular third molar incision. The search was restricted to English language articles. Additionally, a manual search in the major oral surgery journals and books was performed.rnResults:-In total 29 literature sources were obtained and reviewed.rnConclusion:- Review states that considering various flaps, triangular flap and envelop flap were mainstay for third molar surgery, triangular flaps have significance over envelop flap in term of wound healing, postoperative pain, trismus and swelling but not significant statistically. These two flaps do not seem to have a long lasting difference in term of primary wound healing and status of periodontium.