Methods
Obesity
OBESITY, ORAL DISEASE
The study protocol and informed consent following the Helsinki Declaration of 1975 (version 2008) was approved by the Norwegian Regional Ethics Committee (Reference 152,810–22/02/2021/REK Vest). The principal clinical trial, entitled “Obesity and Oral Diseases”, was prospectively registered in ClinicalTrials.gov with registration NCT04602572 (20.10.2020). Study subjects were informed of the nature, scope, and consequences of participating in the study before signing the informed consent. The present article is written according to Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) guidelines. All methods were carried out in accordance with relevant guidelines and regulations.