Comparing AI Avatar and Braille Book Methods for Oral Hygiene Education in Visually Impaired Children

INTERVENTION: Intervention1: Nil: Nil Control Intervention1: Nil: Nil CONDITION: PRIMARY OUTCOME: Mean change in Oral Hygiene Index Simplified OHIS score from baseline to 3 months post‐intervention AI Avatar vs Tooth Teacher Braille BookTimepoint: baseline to 3 months post‐intervention SECONDARY OUTCOME: Mean change in Oral Hygiene Inde XSimplified OHIS scoreTimepoint: Baseline to 3 months postintervention AI Avatar vs Tooth Teacher Braille Book INCLUSION CRITERIA: Children with documented visual impairment (partial or total) confirmed by school medical records or an ophthalmic certificate. Age 12 17 years (or your study s chosen age range) at time of enrolment. Enrolled in a school or program for visually impaired children and available for follow‐up for the study period. Able to understand and follow verbal instructions in the language used by the AI Avatar and study staff (so they can engage with the intervention). Hearing adequate for auditory instructions (for the AI Avatar arm) i.e., no severe hearing impairment that prevents following spoken guidance. Assent from the child plus written informed consent from parent/guardian. Willingness of school/guardian to allow the child to participate in both baseline and follow‐up oral examinations and educational sessions.