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Authors
Tvilde, Britt Nygard
Wojcik, Dorota Malgorzata https://orcid.org/0009-0008-7923-4139
Assmus, Jörg https://orcid.org/0000-0002-1688-8556
Laegreid, Torgils https://orcid.org/0000-0002-0326-9510
Løes, Sigbjørn https://orcid.org/0000-0001-7941-4908
Birkeland, Tine https://orcid.org/0000-0003-4733-8917
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Funding
Funding for this research was provided by:
The Norwegian Childhood Cancer Society.
Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Bergen, Norway.
University of Bergen
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Article History
Received: 29 August 2025
Accepted: 16 April 2026
First Online: 1 May 2026
Declarations
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: This study was approved by the Regional Committees for Medical and Health Research Ethics (REK) (Reference no. 2018/1234) in accordance with the Declaration of Helsinki and recorded in the e-protocol system at HUH. Additionally, permission to conduct the study was granted by the Head of the Vestland County Dental Health Authorities in Western Norway.
: Written informed consent was obtained from all participants. For participants under 16 years of age, consent was provided by their parents, whereas participants aged 16 and older provided their own written informed consent.
: Written informed consent for publication was obtained for Fig. .
: The authors declare no competing interests.
: Not applicable.
