Wagner, Yvonne
Knaup, I.
Knaup, T. J.
Jacobs, C.
Wolf, M.
Funding for this research was provided by:
Deutsche Gesellschaft für Zahn-, Mund- und Kieferheilkunde (not applicable)
Deutsche Gesellschaft für Kieferorthopädie (not applicable)
Article History
Received: 5 September 2019
Accepted: 17 April 2020
First Online: 7 May 2020
Compliance with ethical standards
: This study was conducted in full accordance with the ethical requirements of the World Medical Association Declaration of Helsinki (2008). This investigation complied with the recommendations of the Strengthening the Reporting of Observational studies in Epidemiology (STROBE) statement guidelines.
: The authors declare that they have no conflict of interest.
: The study was approved by the Ethics Committee of Jena University Hospital (2759-02/10; German Clinical Trials Register DRKS00003438).
: Informed consent was obtained from all parents whose children participated in the study.
: The funders had no role in study design, data collection and analysis, decision to publish or preparation of the manuscript.