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Mobile App-Based Intervention to Improve Toothbrushing in Children and Teens With Autism

NCT07446413 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 270

Last updated 2026-03-03

No results posted yet for this study

Summary

The goal of this clinical trial is to test whether the autism-friendly app improves toothbrushing outcomes compared to a control app with only a digital mirror and countdown timer among children and teens (ages 8-17 years) with autism.

The main questions it aims to answer are:

1. Will toothbrushing distribution, duration, and frequency be greater in the experimental arm than in the control arm?
2. Will toothbrushing habit formation be higher in the experimental arm than in the control arm?
3. Is caregiver and child self-efficacy a mediator of toothbrushing habit formation?
4. Do children who exhibit habit formation report better oral health-related quality of life?

Participants will:

1. Use either the autism-friendly app or the control app during their daily toothbrushing routine for 3 months.
2. Complete surveys and assessments about toothbrushing behaviors and oral health over the course of the study.

Conditions

Interventions

BEHAVIORAL

Brush Up App

The Brush Up app is an autism-friendly mobile app modified to improve toothbrushing skills and habits in children with autism spectrum disorder and includes a health education module, a cartoon role model, toothbrushing instructional song, digital screen mirror, and customizable app features.

BEHAVIORAL

Brush Down App

The Brush Down app provides health education module, a digital screen mirror and a countdown timer. This app does not include autism-friendly features.

Sponsors & Collaborators

Principal Investigators

  • Donald L Chi, DDS, PhD · University of Washington

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
8 Years
Max Age
17 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-03-01
Primary Completion
2028-08-31
Completion
2029-08-31

Countries

  • United States

Study Locations

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Entities

Diseases
Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07446413 on ClinicalTrials.gov