Received: 15 May 2021
Accepted: 31 December 2021
First Online: 4 February 2022
: Ethical approval is waived by the research ethical committee of Ain Shams University Faculty of medicine, informed written consent to participate in the study was provided by all participants (legal guardian in case number 2).
: Written informed consent for publication is taken from the five patients ((legal guardian in case number 2). Moreover, the images of the oral cavity do not include any identifying information.
: Dr. Mohamed Shehata Taha is a co-author of this study and editorial board member of the journal. He declares a competing interest for this submission. He has not handled this manuscript. The rest of the authors declare that they have no competing interests.