Received: 15 July 2019
Accepted: 3 February 2020
First Online: 10 February 2020
Ethics approval and consent to participate
: Approval by ethic committee was not necessary because the basic oral examinations were performed as part of standard dental check-ups. The patients’ parents or legal guardian(s) signed the institutional informed consent form.
: Written informed consent was obtained from the patient’s legal guardian(s) for publication and any accompanying images.
: The authors declare that they have no competing interests.