Faraj, Bestoon Mohammed
Article History
Received: 13 August 2020
Revised: 12 February 2021
Accepted: 18 February 2021
First Online: 2 March 2021
Ethics approval and consent to participate
: Extracted teeth used for this study were obtained from different public hospitals and private clinics after maintaining an authorization agreement. Informed consent was obtained from all study participants to use their teeth in our research. The study protocol and consent form were prepared by the author and approved by the ethics institutional committee at Sulaimani University (approval no. 392/2020).
: Not applicable.
: The author declares that there is no conflict of interest regarding the publication of this article.