Received: 27 April 2020
Accepted: 12 November 2020
First Online: 19 November 2020
Ethics approval and consent to participate
: This study was conducted after approval of the Institutional Review Committee of Wonkwang Dental University Daejeon Hospital (W1905/001–001). The consent of the participants for the use of their extracted teeth was waived by IRB committee because the teeth were collected anonymously as part of a regular dental treatment and were not used for genetic testing or any other tests except for the in vitro evaluation of volumetric change of dental materials.
: Not applicable.
: The authors declare that they have no competing interests.