Text and Data Mining valid from 2019-11-25
Received: 20 September 2018
Accepted: 6 November 2019
First Online: 25 November 2019
Ethics approval and consent to participate
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This study was part of an ongoing dental preventive program, where yearly dental examinations are conducted in Rhineland-Palatinate. The legislation is based on paragraph 21 of the book of social welfare legislation V (SGB V) as well as on the guide lines of the relevant departments of Rhineland-Palatinate, and thus in this particular case no formal ethics approval was required. Written informed consent to participate in this study was obtained from the parents or caregivers of all children. All data were anonymised.
: Not applicable.
: James Deschner is an editorial board member for BMC Oral Health. The other authors all declare that they have no competing interests.