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.