Technology-enabled Anticipatory Guidance and Peer Support in Empowering Parents to Prevent Early Childhood Caries

The study design is a two-arm, parallel group, assessor-blinded, randomised controlled trial. The hypothesis is that technology-enabled anticipatory guidance and peer support is more effective than conventional oral health education in enhancing parental efficacy, establishing proper childcare practices (dietary, feeding and toothbrushing), and preventing ECC. Up to 600 mother-child dyads will be recruited and randomly assigned to receive conventional oral health education (control), and technology-enabled anticipatory guidance and peer support (intervention), respectively. For the intervention arm, anticipatory guidance and peer support will be delivered through 4 unique online sessions for mothers, when each child turns 3, 6, 12, and 18 months, to match the developmental milestones and parental needs for childcare support. Outcomes will be assessed through a questionnaire and food diary (at 12, 24 and 36 months of child's age) and a dental examination for the child (at 24 and 36 months of age).

The effectiveness of the intervention will be evaluated using psychological outcomes (parental efficacy), behavioral outcomes (dietary, feeding and oral hygiene practices), and clinical outcomes (oral hygiene and ECC), and quality of life outcomes. Process evaluation and cost-effectiveness analysis will be included. Data will be analyzed on an intention-to-treat basis, including with the last observation carried forward method. Descriptive statistics on socio-demographic backgrounds, parental efficacy, childcare practices, child's oral health status, and oral health related quality of life will be reported. Chi-square test and two-sample t-test, or their non-parametric equivalents, will be used as appropriate to compare proportions and means between the control and intervention groups. Effect sizes and number needed to be treated will be presented to provide an estimate of the number of parents needed to be intervened in order to avoid one child with new dental caries. Multivariable analyses will be performed to evaluate the effectiveness of the intervention.

Inclusion criteria

• Mother is currently expecting or has an infant below 3 months of age
• Biological mother of the child
• Mother with internet access and a mobile device
• Mother can communicate in English
• Mother aged 21 years and above

Exclusion criteria

• Child with disqualifying medical condition (e.g., tube feeding, severe neuromuscular disability) that would limit oral dietary intake, at-home oral hygiene practices, or receipt of dental examinations
• Child with serious congenital syndrome that is expected to adversely affect the development of primary teeth
• Family plans to emigrate within 3 years