Schill, Helen
Graeser, Peter
Bücher, Katharina
Pfisterer, Jan
Khazaei, Yeganeh
Enggist, Lukas
Hickel, Reinhard
Kühnisch, Jan http://orcid.org/0000-0003-4063-2291
Funding for this research was provided by:
Ivoclar Vivadent AG
Universitätsklinik München
Article History
Received: 9 December 2021
Accepted: 23 April 2022
First Online: 2 May 2022
Declarations
:
: The clinical trial received ethical approval from the corresponding ethical boards (Ludwig-Maximilians University of Munich: Project number 18–319; Cantonal Ethics Committee in Zurich: Basec-Number 2018–00707). All dental examinations were performed in accordance with the ethical standards of the institutional research board and the modified Helsinki Declaration.
: Written authorization was obtained from all participating adolescents and their legally designated representatives. The work group thanks all the adolescents and their legally designated representatives for their participation.
: The authors declare no competing interests.