Received: 2 June 2020
Accepted: 11 August 2020
First Online: 3 October 2020
Ethics approval and consent to participate
: This study was exempted from ethics approval by the Ethics Committee of Iwate Medical University, School of Dentistry, Morioka, Japan.
: The patient provided written informed consent for publication of this case report and any accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of the journal.
: The authors declare that they have no competing interests.