We know that healthcare professionals' responses are often inadequate in situations of suspected child neglect. We also know that ambiguous threshold levels are partially responsible for this inadequacy. However, we do not know what threshold levels professionals use to guide their responses to suspected child neglect. Moreover, the factors relating to dental neglect beyond which health professionals initiate child protection referral remain unclear. The study will begin to address this gap with health visitors and provide evidence to inform more effective, child protection responses in relation to dental neglect. The aim is to investigate health visitors’ assessment of dental neglect in children, as a marker of broader neglect.