Child- and family-level factors associated with toothbrushing frequency in a sample of Australian children.

Background: Identifying the factors that are conducive to good toothbrushing practices is fundamental for planning oral health promotion interventions.

Aim: This study evaluated the relationships between child and family socio-demographic characteristics; children's behaviour during toothbrushing; family support for toothbrushing; parents' practices, attitudes and knowledge related to toothbrushing; general parenting practices; and children's behavioural problems, and children's toothbrushing frequency.

Design: A cross-sectional survey was conducted between February and May 2020 with parents of children aged 2-8 years, recruited through childcare centres throughout Australia.