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Updated: Apr 19, 2026

Minced Tissue in Compressed Collagen: A Cell-containing Biotransplant for Single-staged Reconstructive Repair
Published on: February 24, 2016
Autotransplantation of an impacted premolar using collagen sponge after cyst enucleation
Jae-Hyung Lim1, Jong-Ki Huh2, Kwang-Ho Park2
1Department of Oral and Maxillofacial Surgery, Korea University Ansan Hospital, Ansan, Korea.
Introduction:
We report a case of successful autotransplantation of a premolar impacted with a dentigerous cyst and transplanted with collagen plugs for initial support.
Methods:
An 18-year-old man had an impacted premolar accompanied with a large dentigerous cyst. The tooth was extracted surgically and transplanted to an edentulous alveolar ridge, and a collagen sponge was inserted to ensure proper healing and initial support. Root canal treatment was performed 3 weeks after the surgery.
Results:
The previous lesion was healed, and the transplanted tooth was functional without any pathologic signs.
Conclusions:
Our protocol provides a viable option for saving an impacted tooth in the case of cyst enucleation.

