Nowadays, many patients begin to pay more attention to the health and beauty of their teeth. Many people want to fulfill themselves in their studies, career and personal life, using a wide smile with straight teeth. In this regard, the issue of studying the influence of orthodontic treatment on the quality of life of patients becomes urgent. The aim of this study is to determine the physical and psychosocial state of patients with Class II malocclusion as well as the degree of satisfaction with the process and treatment results based on the developed questionnaires. A survey of 75 patients with Class II malocclusion aged 17 to 30, who are at the stage or complete orthodontic treatment, was carried out.

The patients were divided into 3 groups, depending on the chosen algorithm for the treatment of Class II malocclusion: with the extention of the lower jaw using functional non-removable telescopic apparatus (FNTA), with the removal of individual teeth on the upper jaw and retraction of the anterior group of the upper jaw teeth, combined orthodontic-surgical treatment. Patients in three groups filled out questionnaires before, during and after treatment. As a result of the analysis of the survey conducted before treatment, it was revealed that the presence of the Class II malocclusion has the greatest effect on the psychological state of patients in all three groups. The dentoalveolar anomaly has the least influence on the social aspect of patient`s lives. An analysis of the questionnaires after the end of orthodontic treatment revealed that the number of patients who were most satisfied with the treatment results did not differ significantly between groups 1 and 3. The second group was the least satisfied with the treatment results (66,1%), their treatment was accompanied by the extraction of individual teeth on the upper jaw and retraction of the anterior group of the upper jaw teeth.

Patients of groups 1 and 3 noted positive changes in the physical, psychological and social aspects largely compared to patients of the second group. Thus, as a result of the study, it was revealed that the treatment of patients with Class II malocclusion, including the use of functional non-removable telescopic apparatus (FNTA) for extending the lower jaw, is also able to influence the change in the quality of patient`s life in physiological, psychological and social aspects favorably, as well as combined orthodontic and surgical treatment.

I t is 95th anniversary of the Master of Russian Orthodontics, Professor F. Khoroshilkina, in 2021.

The article briefly presents the main ways from the biography and professional activities of Professor F. Khoroshilkina, her main publications, as well as the main directions of scientific interests of her last years, which concerned the preservation of the dental health of military personnel, who took the orthodontic treatment, defects of the medical examination in cases of patient's having the dentoalveolar anomalies, features of phonetic rehabilitation and psychophysiological adaptation of young people suffering from dentoalveolar anomalies and having the orthodontic treatment. The significance of her works for military medicine and practical health service is shown.

The purpose of the work is to present the main directions of scientific research of prof. F.Ya. Khoroshilkina in the fi eld of orthodontics in the XXI century. We studied the works of F.Ya. Khoroshilkina since 2000, identified the main areas of her scientific interests and assessed their importance for modern medicine.

3D CBCT cephalometric analysis has beenperfomed in patients with different types of sagittal malocclusion. The most informative landmarks and parameters have been selected, which can effectively be used by orthodontists for upper airway analysis. It allows to measure the dimensions and volume, assess morphology and anatomical layout of upper airway, and evaluate the risk factors of sleep related breathing disorders in patients with malocclusion. 

Bruxism is one of the most actual problems, due to its prevalence and diffi culties in diagnostics and treatment. This article contains analysis of literature sources relating to modern concepts of bruxism origins and different diagnostics methods. 

The article describes the possible causes of wrong tooth inclination during orthodontic treatment and clinical ways of solving these situations. The methods of diagnostics are presented that allow making the right decision when planning the treatment of patients with mandibular anterior crowding. A clinical case is presented with the use of a basic Utility arch to control the vestibulo-oral inclination of lower incisors while resolving crowding during and correcting the Spee curve.

The aims of the article are to systemize the reasons of the wrong tooth inclination during orthodontic treatment, explain diagnostic methods that will help to make a right treatment plan of resolving mandibular anterior crowding, explain biomechanics of basic Utility arch. 

The aim of this study was to analyze the effectiveness of the use of wide shape Pitts wires and early light short elastics on the example of treatmentin patient with narrowing of dentoalveolar arches and deformation.

The orthodontic treatment of a 12-year-old patient with deep bite, narrowing, deformation of the dentoalveolar arches, crowding teeth position, palatal occlusion of the posterior teeth and vestibular position of the tooth 1.3 is presented. The treatment was carried out using fixed orthodontic appliances of the Damon Clear system (ORMCO, USA) on the anterior group of the upper jaw teeth, Damon Q (ORMCO, USA) on the lower teeth and the posterior teeth of the upper jaw, wide forms of Pitts wires (Orthoclassic, USA) and early light short elastics. For 12,5 months of treatment, the development of the dentoalveolar arches in the transversal direction was achieved, the torque of the posterior teeth and the occlusal ratios of the teeth were normalized by mean of cross-elastics, a protocol for changing wide Pitts wires and optimal occlusal separation in the early stages of treatment.

As a result, it was revealed that the use of the protocol of sequential change of the wide Pitts wires and early light short elastics promotes the expansion of the dental arches in aesthetically significant areas (distal regions) already at the early stages of treatment. Thanks to the developed technique of the wire sequence, early control of the lateral teeth torque is possible, which ensures reliable stability of the treatment results.