Correction to: BMC Oral Health (2021) 21:480 https://doi.org/10.1186/s12903-021-01784-w

Following publication of the original article [1], the affiliation of the author “Mohammed Zahid” was incorrectly published as “Saudi Board of Periodontics Resident, Ministry of Health, Riyadh, Saudi Arabia.” The correct Affiliation is “Department of Preventive Dental Sciences, College of Dentistry, Prince Sattam Bin Abdulaziz University, Al Kharj, Kingdom of Saudi Arabia.”

The original article has been corrected.