Funding for this research was provided by:
Ministry of Higher Education, Science and Technology, Republic of Slovenia (P3-029)
Article History
Received: 13 October 2017
Accepted: 1 October 2018
First Online: 9 October 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors. All procedures performed in this study were in accordance with ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The use of extracted human teeth was approved by the National Medical Ethics Committee, Slovenia (no. 91/03/11).
: For this type of study, formal consent is not required.