Impact of virtual supervised tooth brushing on caries experience and quality of life among primary school children: study protocol for a randomized controlled trial

BACKGROUND: Dental caries is one of the most common diseases affecting children world widely as well as in the Kingdom of Saudi Arabia. Supervised tooth brushing programs are implemented throughout the world to provide young children’s developing teeth with additional fluoride as a form of dental caries prevention. While school-based supervised tooth brushing programs have been proven to improve young children’s oral health, virtual supervised teeth brushing programs have not been assessed. The purpose of this protocol is to assess the impact of virtual supervised tooth brushing on caries experience and quality of life among primary school students in Riyadh, Saudi Arabia. METHODS: This is a cluster randomized controlled trial comparing a virtual supervised tooth brushing program against no intervention applied. A total of 1192 (596 in each group) 8–9-year-old children in Riyadh primary schools, Saudi Arabia, will be recruited for the trial. Schools (cluster) will be randomly selected and allocated to either group. Clinical assessment for caries experience will be conducted in six points (baseline, + 3 months, + 6 months, + 12 months, + 24 months, + 36 months) by dental hygienists using the World Health Organization criteria. Data on sociodemographic behavioral factors and children’s quality of life will be collected with every clinical assessment through a structured questionnaire. The primary outcome is the change in caries experience (the number of teeth with untreated dental caries, filled and missing teeth) in both primary and permanent teeth over 36 months. DISCUSSION: Virtual education as well as some health consultation through the pandemic period had enabled an effective IT infrastructure in Saudi Arabia. Virtual supervised tooth brushing is a proposed initiative. It is also an opportunity for targeting a large portion of the population with a high level of disease as a quarter of the Saudi population is younger than 15 years. This project should provide high level evidence on the effectiveness of virtual supervised tooth brushing. The findings should potentially inform policies related to the continuation/implementation of school-based programs in Saudi Arabia. TRIAL REGISTRATION: ClinicalTrials.gov, ID: NCT05217316. Registered on 19 January 2022.