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Article History

Received: 15 September 2022

Accepted: 24 October 2022

First Online: 2 November 2022

Declarations

:

: The study was conducted according to the guidelines of the Declaration of Helsinki, and approved by the Ethics Committee of West China Hospital of Stomatology. Consent for treatment and use of pictures were obtained and on the file.

: Consent for publication was obtained and on the file.

: The authors declare that there are no competing interests.