Article History
Received: 1 July 2018
Accepted: 15 October 2018
First Online: 20 October 2018
Compliance with ethical standards
:
: T. Walia declares that he has no conflict of interest. C. Brigi declares that she has no conflict of interest. Abdel Rahman M. M. KhirAllah declares that he has no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: Informed consent was not required as the study neither involved human subjects or teeth.