Correction to: BMC Oral Health (2021) 21:45 https://doi.org/10.1186/s12903-021-01403-8

After publication of the original article [1], the authors identified an error in the Results section of the Abstract.

The incorrect sentence is: “Annual transformation rate was 4.03%”.

The correct sentence is: “Annual transformation rate was 1.08%”.

The original article has been corrected.