Kaczmarek, Urszula http://orcid.org/0000-0002-9692-283X
Wrzyszcz-Kowalczyk, Alina http://orcid.org/0000-0002-2593-2336
Jankowska, Katarzyna http://orcid.org/0000-0002-2806-4861
Prościak, Katarzyna http://orcid.org/0000-0002-2062-2101
Mysiak-Dębska, Monika http://orcid.org/0000-0003-2037-5320
Przywitowska, Iwona http://orcid.org/0000-0003-1716-3503
Makulska, Irena http://orcid.org/0000-0001-8324-274X
Funding for this research was provided by:
Wroclaw Medical University (ST-B010.16.044)
Article History
Received: 31 August 2020
Accepted: 20 December 2020
First Online: 7 January 2021
Declarations
:
: The study protocol was approved by the Bioethics Committee of Wroclaw Medical University (Permission No. KB-343/2016) in accordance with the Declaration of Helsinki. Participation in the study was voluntary and anonymous, and the collected data was treated confidentially. Written informed consent was obtained from a parent or guardian for participants under 16 years old.
: Not applicable.
: The datasets used and analyzed during the current study are available from the corresponding author on request.
: The authors declare that have no competing interests related to this study.
: This study was supported by a grant from the Wroclaw Medical University, Poland (Grant No. ST-B010.16.044). The funding body played no role in the study design, data collection, analysis and interpretation, and manuscript writing.
: AWK, KJ, MMD and IP performed the oral clinical examination, collected the questionnaire data and salivary samples. KP performed the medical examination and gathered the blood parameters. IM performed medical examination and drafting. UK designed the study, performed analysis and interpretation of the data, drafted and edited the manuscript. All authors read and approved the final manuscript.
: The authors thank the children and adolescents and their parents for participation in the study.