Study of the length of the anterior base of the skull in children from the Moscow region

Relevance . One of the starting points for calculating the parameters of growth and the ratio of the jaws is considered to be the sagittal size of the anterior base of the skull. To this day, many orthodontists are guided by the average values of the anterior skull base, found in 1972. This article is devoted to the study of the comparison of the average statistical sagittal dimensions of the length of the anterior skull base in children of the Moscow region aged 4 to 16 years with occlusal ratios according to the first Angle class in 2023 with the data proposed in the studies of Dr. Jarabak in 1972. Objective. To compare the average sagittal dimensions of the length of the anterior base of the skull in children of the Moscow region aged from 4 to 16 years with occlusal ratios for the first Engl class in 2023 with the data proposed in the studies of Dr. Jarabak in 1972. Materials and methods . The study included 331 people aged 4 to 16 years. The sagittal dimensions of the length of the anterior base of the skull were calculated in the digital program for the analysis of CBCT in children with occlusive ratios in the first class of male and female Engl on the digital X-ray machine Planmeca ProMax 3D Max X-ray diagnostic centers «Golden Section». Results. Male patients of the Moscow region approach the lower limits of the growth value of the anterior base of the skull only by the age of 12 and reach the confident values of the norm proposed by Dr. Jarabak only by the age of 16. And female patients in the Moscow region, for the most part, do not reach the limits of the norm proposed by Dr. Jarabak, lagging in values by 2–3 mm in a smaller direction. Conclusion . It is necessary to calculate and develop norms for Russian children, taking into account racial characteristics, environmental conditions, nutritional conditions, physical and social development, which differ significantly, but at the same time strongly affect the growth and formation of skeletal structures.