Tehran University of Medical Sciences Frontiers in Dentistry 2676-296X 12 2 2015 04 15 151 6 Sara Soheilifar Assistant Profesoor, Department of Periodontics, Faculty of Dentistry, Hamadan University of Medical Science, Hamadan, Iran. Mohsen Bidgoli Assistant Profesoor, Department of Periodontics, Faculty of Dentistry, Hamadan University of Medical Science, Hamadan, Iran. Javad Faradmal Assistant Profesoor, Department of Biostatistics & Epidemiology and Modeling of NoncommuniCable Disease Research Center, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran. Sanaz Soheilifar Assistant Profesoor, Department of Orthodontics, Faculty of Dentistry, Hamadan University of Medical Sciences, Hamadan, Iran. 2015 10 16 It has been claimed that periodontal dressing reduces the risk of wound infection, bleeding and granulation tissue formation and improves tissue healing. This study sought to assess the effect of periodontal dressing on wound healing and patient satisfaction following periodontal flap surgery.This clinical trial was conducted on 33 patients presenting to Hamadan University, School of Dentistry in 2012 whose treatment plan included two periodontal surgical procedures on both quadrants of the maxilla or mandible. The variables evaluated were severity of pain, bleeding, facial swelling and ease of nutrition experienced by patient during the first 3 days after surgery and inflammation, granulation tissue formation and gingival color at 7 and 14 days. Obtained data were analyzed using SPSS version 16.0 and R software and chi-square and t-tests.The mean (±SD) pain score was 1.73±1.153 and 2.79±1.933 in surgical sites with and without periodontal dressing, respectively and this difference was statistically significant (P=0.005). No significant difference was noted between sites with and without periodontal dressing in terms of swelling, bleeding, gingival consistency, granulation tissue formation, gingival color and ease of nutrition (P>0.05).According to the results of the present study, patients did not experience more bleeding, facial swelling or nutritional problems without periodontal dressing; however, the level of pain experienced was lower after surgeries with the use of periodontal dressing. https://fid.tums.ac.ir/index.php/fid/article/view/343 https://fid.tums.ac.ir/index.php/fid/article/download/343/319