Relevance. Underestimating the importance of economic analysis is the barrier to the implementation of cariesprevention programs.The aim is to study with use of mathematic modeling method the clinical and economic effectiveness of dental caries prevention programs provided for schoolchildren.Materials and methods. The method of mathematic modeling was used to evaluate the clinical and economic efficiency of the caries prevention programs (educational, fissure sealing, fluoride varnish). The cost of prevention program implementation and the expenses for caries treatment without prevention were calculated according to the rate of Volgograd territorial mandatory medical insurance Fund for 2018 year. The differences between the caries prevention program’s cost and the expenses needed for the treatment of “prevented caries” were considered as saving.Results. It was revealed that the Educational Dental Program for the first grade schoolchildren has short duration (2 years) of clinical-economic efficiency. The Continuous Educational Dental Program applied for 6 years by dental hygienists or dentists led to saving (per 100 children) of 99.5-115.0 or 84.0-99.6 thousand roubles respectively. The economic effect of The First Permanent Molar Fissure Sealing Program was revealed after 2 years only when The Program was implemented by dental hygienists. After 6 years of working with this Program the saving were 181.3 or 146.2 thousand roubles per 100 children depending on who implemented the Program, dental hygienists or dentists. The cost of Fluoride Varnish Program implementation was higher than the treatment of “prevented caries”. However, the number of “prevented caries” after fluoride varnish application is higher than after the implementation of the Educational Dental Programs. Moreover, fluoride varnish, in contrast to fissure sealing, prevents caries of smooth surfaces of permanent teeth. Conclusions. The method of mathematic modeling can be used for the development of the caries prevention programs in various regions considering the availability of personnel and financial resources, and for evaluation of the clinical and economic effectiveness of preventive programs implementation.

Данная статья посвящена проблеме дистальной окклюзии. Проведен сравнительный анализ глубины гнатической части верхнего и нижнего отделов лица для определения формы данной патологии. В результате исследования выявлена антропометрическая взаимосвязь глубины гнатической части верхнего и нижнего отделов лица с формой дистальной окклюзии. В превалирующем количестве случаев несоответствие глубины гнатических частей лица объяснялось нормогнатией верхней челюсти и микрогнатией нижней челюсти.Ключевые слова: дистальный прикус, глубина гнатической части верхнего отдела лица, глубина гнатической части нижнего отдела лица, форма дистальной окклюзии, параметры кранио-фациального комплекса.

Relevance. Riga-Fede disease (RFD) is a rare pathology that develops as a result of trauma to the mucous membrane of the tongue ventral surface with sharp edges of natal, neonatal or primary teeth erupting in time and manifests in the form of erosion or sublingual fibrous lesion with an ulcerated surface.Purpose. To analyze the literature and present our own RFD clinical cases.Material and methods. A search was performed of articles published in 2001-2023 on the research topic in the main scientific literature databases (PubMed, E-library, Google Scholar, etc.). We analyzed the data from 68 publications and presented three of our own clinical cases of RFD in children aged 5, 6 and 9 months.Results. Analysis of literature data revealed different approaches to the diagnosis and treatment of RFD in children. The diagnosis of RFD should rely on the clinical picture and exclude additional trauma to children by histological examination and lesion excision. Pronounced tooth mobility, ineffective infant feeding and the presence of neurological diseases in patients were the main indications for the extraction of teeth, which caused RFD development. In the absence of tooth mobility, non-surgical treatment methods should be preferable. In the presented clinical cases, erupted primary teeth caused BRF. In two cases, the treatment consisted of smoothing the sharp edges of the teeth and restoration with glass ionomer cement; in one case, a child with a neurological disease experienced extraction of lower central incisors. In all cases, recovery was within 3-4 weeks.Conclusion. Once clinically diagnosed with RFD, treatment method choice should consider tooth mobility and the child's overall health.

The article is devoted to the analysis of the results of surgical treatment of ankyloglossia in children using a diode laser. The patients were divided into three age groups. The immediate and long-term results of treatment were evaluated. The postoperative period was favorable in 98,5 % of cases. After 6–9 months, very good and good treatment results were most common in the first age group (96,4 %). Improvement or normalization of sound pronunciation was noted in 86,7 % of all operated children.