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Authors
den Boer, Joost C. L. http://orcid.org/0000-0002-6330-4445
van der Sanden, Wil J. M.
Bruers, Josef J. M.
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Funding
Funding for this research was provided by:
KNMT (Not applicable)
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Article History
Received: 2 September 2019
Accepted: 25 June 2020
First Online: 8 July 2020
Ethics approval and consent to participate
: The study protocol of all DSP surveys, including the questionnaires, sampling and methods of obtaining informed consent, were approved beforehand by the Research Committee of KNMT (In Dutch: Commissie Onderzoeksbegeleiding). In all editions, dentists eligible for participation received a letter in which the survey was announced and its background explained. By completing and returning the questionnaire (by freepost or e-mail), dentists consented to participate. Data were anonymised before analysis. Information that could be traced back to the dentist who answered the questions was only used for the analyses of the representativeness and for the in- or exclusion in later editions.
: Not applicable.
: The authors declare that they have no competing interests. WVDS is associate editor of BMC Oral Health.
