Funding for this research was provided by:
Johann Wolfgang Goethe-Universität, Frankfurt am Main
Received: 23 March 2021
Accepted: 26 June 2021
First Online: 9 July 2021
: All experimental protocols were approved by the Research Ethics Committee of the Faculty of Dentistry of Ain Shams University, Egypt (FDASUREC), under the number FDASU-RECID111610. The authors followed the institutional and international guidelines mentioned in the Declaration of Helsinki for the use of human body material in medical research. In accordance with the requirements of the Research Ethics Committee, both verbal and written informed consent were obtained from the legal guardian of the child before the collection of the extracted teeth. The methodology applied followed the checklist for reporting in vitro studies (CRIS Guidelines) [CitationRef removed].
: Not applicable.
: The authors declare that they have no competing interests.