Received: 24 April 2020
Accepted: 4 July 2020
First Online: 10 July 2020
Ethics approval and consent to participate
: Ethics approval for the study was obtained from the Research and Ethics Committee of the Obafemi Awolowo University Teaching Hospitals Complex, Ile-Ife, Nigeria (ERC/2018/08/06). The study was conducted in line with the requirements of the Declaration of Helsinki. The primary study received written consent from the parents of all study participants. Written assent was obtained from children ages 12–16 years in addition to the parental consent.
: Not applicable.
: MOF is a Sectional Editor with the BMC Oral Health. MET is an Associate Editor with the BMC Oral Health. All other authors declare that they have no competing interests.