Complication rates in patients using absorbable collagen sponges in third molar extraction sockets: a retrospective study.
OBJECTIVE
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.


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%.


CONCLUSIONS
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.
Department of Oral and Maxillofacial Surgery, Yonsei University College of Dentistry, Seoul, Korea.
Hoon
H
Cho
Department of Oral and Maxillofacial Surgery, Yonsei University College of Dentistry, Seoul, Korea.
Hwi-Dong
HD
Jung
Department of Oral and Maxillofacial Surgery, Dong-A University School of Medicine, Busan, Korea.
Bok-Joo
BJ
Kim
Department of Oral and Maxillofacial Surgery, Dong-A University School of Medicine, Busan, Korea.
Chul-Hoon
CH
Kim
Department of Oral and Maxillofacial Surgery, Yonsei University College of Dentistry, Seoul, Korea.
Young-Soo
YS
Jung
Collagen sponge; Postoperative complications; Third molar; Tooth extraction