Objective: The objective is to analyze the influence of nutrition on permanent dentition processes in children of early and middle childhood age.Methods: The study of the permanent dentition time periods in children going to municipal budgetary educational institutions of Vladivostok was performed. The sanitary audit of everyday nutrition was carried out. The causeeffect relations between nutrition and permanent dentition were identified.Results: First permanent teeth started erupting in girls in 4.5 y.o. The analysis showed children nutrition deficiency and imbalance in nutrient content of their diets. The portion of nutrition factor influence on permanent dentition in girls of early childhood age was 36.0 ±3.2Influence of nutrition on permanent dentition in children living in Vladivostok, in boys of early childhood age – 38.4±3.7 %, in girls of middle childhood age – 36.0±4.4 %, in boys of middle childhood – 36.0±0.2 %.Conclusion: The nutrient deficiency and dietary imbalance of a child serves as risk factors of the permanent dentition disorders. Developing a diet for children it is important to consider their physiological requirements at each age with mandatory inclusion of products containing sufficient amount of macroand microelements.

The literature review analyzing national and international researches on health condition of children population and on factors affecting its development. It has been determined that nowadays the trend towards deterioration in health indicators of children and adolescents continues characterized by an increase in the prevalence of functional disorders and chronic diseases, a deterioration in indicators of physical development. Data on the influence of various factors on the health of children are summarized, among which a special place is given to intraschool factors and the regulation of the daily routine.

Subject. Complex studying and assessment of influence of potential is carried out risk factors on a secondary dentition of children in the conditions of particular territorial community and also are developed and introduced preventive and improving actions. Work purpose: studying of features of a secondary dentition of children in specific conditions of the habitat for the purpose of development of the priority directions of prophylaxis of violations of health of children and perfecting of methods of rendering the children's stomatologic help. Methodology. Studying of process of a secondary dentition at children of 4,5-11 years of Vladivostok is carried out. The beginning of eruption considered the perforation moment tooth of an alveolar gingiva with exposure of one hillock or cutting edge. Potential risk factors of the period of pregnancy of mother and childbirth, risk factors of the early childhood, social and economic, features of a way of life are studied. By means of the component konfirmatorny analysis identification of relationships of cause and effect in system habitat factors ‒ a secondary dentition is carried out. Results. The early secondary dentition at children is revealed. Signs of sexual dimorphism of an index of a tooth maturity are established. The greatest impact on a secondary dentition is exerted a factor of a delivery of children, by features of a way of life of boys and girls and also a delivery of their mothers during pregnancy. Conclusions. Materials of a research formed the basis of the developed regional standards of a secondary dentition which were introduced in work of the children's stomatologic organizations. The system of preventive actions providing accounting of regional features of a condition of the habitat, living conditions, deliveries is developed and also solves a number of practical problems of perfecting of the principles of medical observation and improvement of children.