Krause, Felix http://orcid.org/0000-0001-5732-5752
Köhler, Conny
Rüger, Claudia
Park, Kyung Jin
Ziebolz, Dirk
Schneider, Hartmut
Haak, Rainer
Article History
Received: 28 March 2018
Accepted: 7 November 2018
First Online: 13 November 2018
Compliance with ethical standards
: The study was conducted in accordance with the Declaration of Helsinki, and the protocols were approved by the Ethics Committee of the University of Leipzig. The extracted teeth were used on the basis of patients’ approval (informed consent, protocol no. 299-10-04102010).
: The authors declare that they have no conflicts of interest.