Abstract

Objectives: The purpose of this study is to retrospectively evaluate the postoperative complication rates for absorbable type-I collagen sponge (Atelo-plug; Bioland) use in third molar extraction.Materials and Methods: From January to August 2013, 2,697 total patients undergoing third molar extraction and type-I collagen sponge applica-tion in the Department of Oral and Maxillofacial Surgery at Yonsei University Dental Hospital (1,163 patients) and Dong-A University Hospital (1,534 patients) were evaluated in a retrospective study using their operation and medical records.Results: A total of 3,869 third molars in 2,697 patients were extracted and the extraction sockets packed with type-I collagen sponges to prevent post-operative complications. As a result, the overall complication rate was 4.52%, with 3.00% experiencing surgical site infection (SSI), 1.14% showing alveolar osteitis, and 0.39% experiencing hematoma. Of the total number of complications, SSI accounted for more than a half at 66.29%.Conclusion: Compared to previous studies, this study showed a relatively low incidence of complications. The use of type-I collagen sponges is rec-ommended for the prevention of complications after third molar extraction.