Eickholz, Peter
Schröder, Mario
Asendorf, Anne
Schacher, Beate
Oremek, Gerhard M.
Kaiser, Frank
Wohlfeil, Martin
Nibali, Luigi
Funding for this research was provided by:
German Society of Periodontology (no number)
Deutsche Gesellschaft für Zahn-, Mund- und Kieferheilkunde (no number)
New Working Group for Periodontology (no number)
Freiherr Carl von Rothschild´sche Stiftung Carolinum, Frankfurt, Germany (no number)
Article History
Received: 27 November 2019
Accepted: 16 April 2020
First Online: 8 May 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study conforms to the provisions of the Declaration of Helsinki (and its later amendments) and had been approved by the Institutional Review Board for Human Studies of the Medical Faculty of the Goethe-University Frankfurt/Main (Application# 188/06).
: Informed consent was obtained from all individual participants.