Text and Data Mining valid from 2019-10-31
Received: 6 June 2019
Accepted: 15 October 2019
First Online: 31 October 2019
Ethics approval and consent to participate
: This study was approved by the Faculty of Dentistry, University of Otago Human Ethics committee. 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. Informed written consent was obtained from all individual participants included in the study.
: Not applicable.
: Alison Mary Rich is an associate editor of the BMC Oral Health Journal. The authors declare that they have no competing interests with respect to the authorship and/or publication of this article.