Background: Dental caries can develop early in life and have harmful consequences. Objective: To examine non-dental practitioners' knowledge of early childhood caries (ECC). Methods: A questionnaire on oral health and caries knowledge was emailed to five types of health professional who work with young children: paediatricians, GPs, midwives, paediatric nurses and paediatric healthcare assistants. Questions concerned: when a child should first visit a dentist; at what age toothbrushing should start; aetiopathogenic factors; early diagnosis; and the effect of breastfeeding. Results: 494 health professionals (79 paediatricians, 59 physicians, 217 midwives, 92 paediatric nurses and 47 paediatric healthcare assistants) participated. Although most (89.86%) discussed oral health with parents, responses on when a child should first see a dentist and when toothbrushing should start varied. Almost half of respondents said they could diagnose caries but not all were confident in this. Aetiological factors in ECC mentioned included oral hygiene, bottle feeding, sugar intake, genetics and a lack of fluoride. Conclusion: Non-dental practitioners lack knowledge about ECC, so cannot help prevent it. Initiatives including interprofessional training would improve their knowledge of oral health in early childhood.

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