Received: 24 December 2020
Accepted: 15 February 2021
First Online: 2 March 2021
Ethics approval and consent to participate
: The study protocol approval was obtained from the Ethical Committee of Faculty of Dentistry, Mansoura University (Code No. 02030718). Also, written informed consents were obtained from parents of both ADHD children and healthy children for participation in the study after informing them about the aim and the method of the study.
: As a corresponding author, I confirm that the paper has been revised and approved for submission by all the named authors.
: There is no conflict of interest associated with this publication.