Introduction: Children oral health is one of the common themes which is described in many articles linked with health of children. Poor oral higiene could be one of the main reasons of poor dental health. For good oral health in children is crucial good dental education, oral preventive and health promotion. Intention: The aim of this thesis is to present caring for oral health in children. Methods: The thesis includes descriptive method with the review of domestic and foreign literature. The literature which was found in online bibliographic databases CINAHL, MEDLINE and Dentistry & oral sciences source. Searching was based on certain words like healthy teeth, children, tooth disorder, nurse, healthy foof and drink, dental care, cleaning of the teeth and oral cavity, prevention and parents. Searching was based on Boolean operator. Discussion and conclusion: Poor oral health and poor nutrition may cause residual effects in the whole life of children. Therefore it is necessary to perform teeth brushing immediately when grow first tooth. It should be performed twice per day. If oral health is neglected this could cause dental disease such as dental caries. Nurses have important role in the caries prevention and oral health in children. They give them a lot of important data and motivation for taking care of their dental hygiene and regularly visits to the dentist.