Mobile-health Intervention to Promote Oral Health in Adolescents: A Cluster Randomized Controlled Trial
- Conditions
- Oral Health
- Interventions
- Behavioral: Adolescent e-pamphletsBehavioral: Family HBM- mobile messagingBehavioral: Adolescent HBM- mobile messaging
- Registration Number
- NCT05448664
- Lead Sponsor
- The University of Hong Kong
- Brief Summary
The aim of this study is to investigate the effectiveness of the family and behavioral theory based mobile-health behavioral intervention in enhancing adolescents'good oral health behaviors (mainly oral hygiene practice and free sugar intake control) and preventing common oral diseases (dental caries and periodontal diseases).
- Detailed Description
The investigators propose a 30-months clustered randomized controlled trial to investigate the effectiveness of Health Belief Model (HBM) and family-based mobile-health intervention in enhancing the adolescents' good oral health behaviors and preventing oral diseases.
This is a three-arm parallel-design cluster-randomized controlled trial. Parents and their children (12 to 15-year-old) will be recruited and randomized into 3 groups based on the school sites.
Messages targeted on six domains guided by HBM will be sent to the adolescents and their parents via mobile phone. Two blocks of HBM-based oral health messages, reminders, feedback and reinforcement messages will be delivered to both students and parents by mobile phone for 24 weeks; while the intervention of the other 2 groups will target on students only or using prevailing oral health education.
The primary outcomes will be caries increment of the adolescents 2-year post-intervention. Change in oral health self-efficacy and behaviors, dental plaque and gingival bleeding index will be the secondary outcomes.
The investigators anticipate the proposed family- and HBM-based behavioral intervention is more effective than HBM-based mobile-health intervention on adolescents alone or prevailing oral health education in improving the adolescents' oral hygiene behaviors, reducing free-sugar intake and preventing oral diseases.
Recruitment & Eligibility
- Status
- RECRUITING
- Sex
- All
- Target Recruitment
- 900
- Chinese ethnicity;
- Student living with their own parent(s) or primary caregivers;
- Both student and parent(s) or primary caregiver having their own access to a personal mobile phone with certain Apps to receive the messages in time
- Student currently on a special diet (e.g. severe inflammatory bowel disease);
- Student has medical conditions know to affect growth or eating (e.g. diabetes, cystic fibrosis);
- Enrollment in other oral health promotion programs or research studies.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Adolescents e-pamphlets Adolescent e-pamphlets Prevailing oral health education by e-version of pamphlets through mobile messaging Families HBM- mobile messaging Family HBM- mobile messaging Family- and HBM-based behavioral intervention using mobile messaging Adolescents HBM- mobile messaging Adolescent HBM- mobile messaging Student- and HBM-based behavioral intervention using mobile messaging
- Primary Outcome Measures
Name Time Method Caries increment 2 years Dental caries increment (by tooth level) from baseline to 2 years follow up
- Secondary Outcome Measures
Name Time Method Change of oral health self-efficacy 2 years Change from baseline self-efficacy at 2 years
Change of gingival status 2 years Change from baseline gingival bleeding (BOP%) at 2 years, as recommended by the WHO for conducting oral health surveys
Change of free-sugar intake 2 years Change from baseline average frequency of intake of sugary snack/drink per day at 2 years
Change of toothbrushing behavior 2 years Change from baseline average frequency of toothbrushing per day at 2 years
Trial Locations
- Locations (1)
Faculty of Dentistry, The University of Hong Kong
🇭🇰Hong Kong, Hong Kong