Engel, Alexander-Simon
Kranz, Hagen Tizian
Schneider, Marvin
Tietze, Jan Peter
Piwowarcyk, Andree
Kuzius, Thorsten
Arnold, Wolfgang http://orcid.org/0000-0002-9335-1808
Naumova, Ella A.
Article History
Received: 28 January 2020
Accepted: 21 May 2020
First Online: 3 June 2020
Ethics approval and consent to participate
: Ethical approval was obtained from the ethics committee of Witten/Herdecke University (# 15/2016) for the study and # 16/2013 for the collection of enamel specimens. All participants gave their written informed consent.
: Not applicable.
: All authors declare no conflicts of interest.