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Case Reports in Dentistry
Volume 2015, Article ID 974169, 4 pages
Case Report

Use of a Piezosurgery Technique to Remove a Deeply Impacted Supernumerary Tooth in the Anterior Maxilla

1Division of Oral and Maxillofacial Surgery, Kagawa Prefectural Central Hospital, No. 1-2-1, Asahi-cho, Takamatsu, Kagawa 760-8557, Japan
2Department of Oral and Maxillofacial Surgery, Shimane University Faculty of Medicine, No. 89-1, Enya-cho, Izumo, Shimane 693-8501, Japan
3Kawakami Orthodontic Clinic, No. 1-3-30, Ban-cho, Takamatsu, Kagawa 760-0017, Japan

Received 20 August 2015; Accepted 26 November 2015

Academic Editor: Constantino Ledesma-Montes

Copyright © 2015 Shintaro Sukegawa et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Deeply impacted supernumerary teeth in the anterior maxillary cannot be generally removed by the conventional labial or palatal surgical approach because of the risk of damaging the surrounding soft tissues and the possibility of injuring the roots of adjacent permanent teeth. In piezosurgery, bony tissues are selectively cut, thereby avoiding the soft tissue damage caused by rotary cutting instruments. We report the case of a 15-year-old Japanese boy from whom a deeply impacted supernumerary tooth in the anterior maxillary was safely removed through the floor of the nasal cavity. The surgical extraction was performed without damaging the nasal mucosa or adjacent structures such as the roots of the adjacent permanent teeth. Considering that piezosurgery limits the extent of surgical invasion, this technique can be practiced as a minimally invasive and safe surgical procedure for treating suitably selected cases with a deeply impacted supernumerary tooth.