Children diagnosed with Autism or related developmental disorders exhibits varying degree of cognitive impairment, lack of verbal and non-verbal communication skills and limited skills for social interaction. Their fixity to repetitive patterns of behaviours /interests/activities, and unpredictable response have been documented in literature as a virtue of cognitive delay.

Previous studies have reported the inadequacy of dental care in children with SCHN including children with ASD. The challenge faced by parents in providing proper home hygiene care and visit to dentist becomes a great task due to the sensory sensitivities in such children. This Complex and complicated behaviour lands a child into multiple dental ailment for which a comprehensive treatment plan is required. To overcome such challenges, clinicians suggests introduction of home dental care early in life which includes correct toothbrushing.

As a part of their teaching strategies, visual pedagogy has been used since years. Various types of pedagogical techniques have been found to be effective in teaching daily life skills. Incorporation of such techniques in teaching dental skills and establishing independency in that task can prove to be beneficial for the children in the long run. However, evidence suggests that  efficacy of these communication aids to improve oral hygiene is still insufficient.  

Thus, Electronically delivered Video modelled Toothbrushing intervention was designed and planned to support and teach children with ASD proper at-home oral hygiene care. The effectiveness and efficacy of the devised intervention was compared from baseline at 3^rd and 6^th months. Reversible parameters such as plaque score, toothbrushing ability , salivary cytokine levels ( IL-6) and parental perception for the improvement was assessed.

After using the toothbrushing visual modelled intervention for 6 months, the plaque score , toothbrushing ability and cytokine levels had significantly improved.  Intragroup Comparison within the severity subgroup also showed statistically significant improvement at 3^rd and 6^th month of the study . Parental perception reported improved brushing compliance and behaviour towards oral hygiene. Many children started brushing twice daily which was a tedious task to accomplish before the program. The results highlight the use of video modelling for rapid acquisition of the skills, which can in turn reduces the overall dependency of the child towards toothbrushing.

Such video-modelled toothbrushing intervention may serve as an easily comprehendible , evidence based education tool in establishing independency in various tasks.  This promising approach should be encouraged for further development and utilization of similar intervention tools among clinicians and other dental personnel in promoting oral health awareness in special care dentistry.