At an early age, parent-child interactions can shape how persistent a child is at completing tasks like tooth brushing. Previous studies have shown that by identifying factors that impact an individual child’s persistence, it can facilitate designing targeted intervention programs. Variability in day-to-day tooth brushing duration may be the result of job-related factors, like irregular work schedules, which could make it difficult to have a consistent tooth brushing routine. By recording parent-child interactions and using information from questionnaires that participants filled out, we could better identify factors that could cause tooth brushing duration variability (i.e. socioeconomic status, parent mental health, parent verbally engaging with their child, redirecting child’s attention, parent taking over toothbrushing, and praising their child). This way, intervention programs may be able to better identify ways to support parents.