The oral health of children is affected by various factors, among which are the general state of health, the age of the child, inadequate nutrition, oral hygiene, and the implementation of oral health preventive measures. Dental caries is the most common chronic disease in children, which is five times more common than asthma and 14 times more common than chronic bronchitis. Children from families with lower socioeconomic status and children with developmental disabilities have a high risk of developing oral diseases, including caries. Baby teeth are important for the growth and development of the jaws, chewing, clear speech, keeping permanent teeth in place, and for the child's psychological development. Because of all this, early caries prevention in children is extremely important. For the early prevention of caries, the most important thing is the education of parents, which starts immediately after the birth of the child, with the arrival of the visiting nurse at the mother's house. The visiting nurse and the pediatric nurse play a major role in educating parents about proper nutrition and oral hygiene of the child.