Table 1 The project time schedule of enrolment, intervention and assessment

Timepoint

-3-0 months

0 months

0 months

3 months

6 months

12 months

24 months

36 months

 Permission

X

 Sending paperwork to parents

X

 Training and calibration of examiners

X

 Randomisation

X

 Obtaining parental consent / child assent

X

 Eligibility screening for participants

X

 Intervention arm: Exposed to daily unified tooth brushing technique videos 5/days

X

X

 Control arm: No intervention

X

X

 Parental Questionnaire: Sociodemographic data

X

X

X

X

X

X

X

 Parental Questionnaire: Behavioural data

X

X

X

X

X

X

X

 Primary outcome: clinical examination (untreated dental caries)

X

X

X

X

X

X

 Secondary outcome: clinical examination (gingival and plaque score)

X

X

X

X

X

X

 Secondary outcome: frequency of daily toothbrushing

X

X

X

X

X

X

X

 Secondary outcome: impact on quality of life (parental repots)

X

X

X

X

X

 Feedback to each participant

X

X