الفهرس 
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Abstract
Background: Pedicle flap design is reported to enhance wound healing and decrease incidence of dry socket. However, limited data are available in the literature about their effect following removal of impacted mandibular third molar. Purpose: To compare the post-operative complications of the traditional triangular flap and the pedicle flap after surgical extraction of mandibular third molars. Materials and methods: This study was conducted on forty impactions presented in twenty patients with bilateral impacted mandibular third molars, divided into two equal groups; group A : The study group, in which pedicle flap design was performed and group B : The control group, in which triangular flap was performed. Postoperative pain was evaluated using visual analogue scale (VAS) on 2nd and 7th days, swelling was evaluated on 2nd and 7th day postoperatively using tape and/ or suture material for measurement of two facial dimensions, trismus was evaluated on 2nd and 7th day postoperatively using digital Vernier calipers, wound dehiscence, dry socket as well as infection were evaluated on 2nd and 7th postoperative days. Result: There was no significant difference between the two flap designs regarding postoperative swelling, trismus, pain and infection in second or seventh day. The wound dehiscence was lower in the pedicle flap group compared to the triangular flap group as recorded in second day (P<0.001) and seventh day (P=0. 01). The incidence of dry socket was lower in the pedicle flap group compared to the triangular flap group as recorded in second day (P=0.047) while no statistical significance difference between both groups in the seventh day (P=0. 102). Conclusion: There is no significant difference between the pedicle flap design and the triangular flap regarding postoperative pain, trismus, infection and swelling after impacted third molar surgery .However, this study reported that pedicle flap design had lower incidence of wound dehiscence and dry socket.