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Updated: Apr 16, 2026

The Establishment of a Murine Mandibular Molar Extraction Socket Healing Model
Published on: January 13, 2023
Complication rates in patients using absorbable collagen sponges in third molar extraction sockets: a retrospective
Hoon Cho1, Hwi-Dong Jung1, Bok-Joo Kim2
1Department of Oral and Maxillofacial Surgery, Yonsei University College of Dentistry, Seoul, Korea.
Objectives:
The purpose of this study is to retrospectively evaluate the postoperative complication rates for absorbable type-I collagen sponge (Ateloplug; 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 application 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 postoperative 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 recommended for the prevention of complications after third molar extraction.

