Received: 22 August 2021
Accepted: 25 November 2021
First Online: 7 December 2021
: Each participant provided written informed consent to participate in the study. The study was conducted in accordance with the Declaration of Helsinki and approved by the Ethical Committee of the College of Dentistry of the University of Sulaimani (application no. 200).
: Not applicable.
: The other authors declare that they have no competing interests.