Determination of the Size of the Jaws of Children in the Exchange and Permanent Bite in Which the Heiloplasty Was Performed

Relevance of the study. Diagnosis and treatment of congenital defects of the face jaw is considered one of the urgent tasks in orthodontics and leads to aesthetic defects. As a result, speech disorders, chewing and food disconnection functions are impaired and significantly reduce the quality of life, causing the manifestation of human potential to be limited. Birth defects in the face-jaw are a medical and social problem. If children with congenital defects in the face-jaw are not given timely treatment and rehabilitation work, it will also lead to the incorrect development of the tooth-jaw joint (Khoroshilkina F.Ya. 2001; Seregin A.S., 2020; Brusati R. et al., 2018). Therefore, the study of the distribution and treatment of birth defects in the face-jaw is considered to be constantly necessary (Uchaeva V.S., 2018; Postnikov M.A., 2021). During scientific research, congenital facial-jaw defects increased by three times. Severe cases of congenital palate defects are also common (Mamedov A.A., 2019). Tooth-jaw bite deformities are the second largest prevalence of dental diseases among children. Their diagnosis and treatment are considered one of the urgent tasks in orthodontics, as long as they affect chewing functions, leading to speech disorders, aesthetic defects and limiting the manifestation of human potential, significantly reducing the quality of life [Korenev , Kadukova yu.V. 2009]. In Particular, F. Ya. According to the results of the study khoroshilkina (1999), dental anomalies occurred on average during the period of milking–24%, during the period of exchange – 49%, during the period of constant biting, up to 17 years – 35%. The number of anomalies increased by 25% from the period of temporary bite formation to the beginning of the exchange period.