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avirus 2-positive decedents revealed that some extent of diffuse alveolar damage in every death due to COVID-19 played some role. The average decedent was middle-aged, male, American Indian, and overweight with comorbidities that included diabetes, ethanolism, and atherosclerotic and/or hypertensive cardiovascular disease. Macroscopic thrombotic events were seen in 35% of cases consisting of pulmonary thromboemboli and coronary artery thrombi. In 2 cases, severe bacterial coinfections were seen in the lungs. Those determined to die with but not of severe acute respiratory syndrome coronavirus 2 infection had unremarkable lung findings.

Of the study was to improve algorithms and methods of complex dental rehabilitation of children and adolescents with maxillofacial neoplasms.

Sixty-seven patients aged from 2 to 17 years (average age 10.43±4.56; 30 boys, 37 girls) underwent complex rehabilitation as a part of neoplasm treatment (40 benign, 27 malignant). Patients were divided into 3 groups group 1 aged 2 to 7 years; group 2 aged 8 to 12 years; group 3 aged 13 to 17 years.

Structural integrity of upper and lower jaws was reconstructed using vascularized bone flaps (27 cases), non-vascularized bone flaps (5 cases), titanium reconstructive plates (11 cases) or individual titanium endoprostheses of the temporomandibular joint (2 cases). Orthodontic, orthopedic and surgical dental treatment was performed at all stages of rehabilitation of patients and had its own characteristics depending on the group affiliation.

Algorithms for dental rehabilitation of children and adolescents with maxillofacial neoplasms have been improved on the base of performed treatment.

Algorithms for dental rehabilitation of children and adolescents with maxillofacial neoplasms have been improved on the base of performed treatment.

Was to analyze treatment outcomes in children with constant teeth avulsion treated in Central Research Institute of Dentistry and Maxillofacial Surgery (CRIDMS).

The study comprised 39 children aged 7-16 years treated in CRIDMS in 2015-2020. In 38 cases from 39 replantation was performed more than 24 hours after trauma. Because of delayed replantation endodontic treatment was needed in 35 cases from 38 (in one case the avulsed tooth was missing). In all 38 cases replantation was followed by splinting with either resin splint made according to original technique proposed by the authors or semi-flexible splints from orthodontic wire fixed with resin composite.

In one case from 39 the avulsed tooth was missing because a dentist the child first consulted was unaware of the possibility of replantation. POMHEX clinical trial In 38 children followed-up for 6-57 months the replanted teeth survived and were clinically asymptomatic. There were, however, obvious radiological signs of replacement resorption in 27 (71.1%) cases. Inflammatory resorption was detected in two cases (5.2%) with immature teeth undergoing apexification with calcium hydroxide.

Replacement root resorption after tooth avulsion may be seen as relatively favorable outcome preserving more bone tissue than early tooth removal. The rate of replacement resorption, however, would be less in less delayed replantation. The study results proved the necessity for additional education of parents and pediatric dentists on the first aid and treatment tactics for teeth avulsion.

Replacement root resorption after tooth avulsion may be seen as relatively favorable outcome preserving more bone tissue than early tooth removal. The rate of replacement resorption, however, would be less in less delayed replantation. The study results proved the necessity for additional education of parents and pediatric dentists on the first aid and treatment tactics for teeth avulsion.In this article the possibility of using the Clark appliance (Twin-block) for creating conditions for skeletal traction in case of fraction of mandibular condyle in children and teenagers is presented. The proposed method of using the double-jaw orthodontic appliance Twin-block in case of mandibular fractures with condylar displacement promotes release of traumatized condyle and mandible replacement to correct position, promotes optimal conditions for myofunctional balance, fragment consolidation and remodeling of affected temporomandibular joint.

To evaluate the effectiveness of the method of treatment of Pierre Robin syndrome using the orthodontic device PEBP (pre-epiglottic baton plate).

The study involved 5 patients with moderate SPD aged 1 to 3 months. All patients showed signs of respiratory failure and impaired swallowing. Respiratory failure was assessed based on oxygen concentration by pulse oximetry, respiratory rate (BPD), and skin color. Swallowing was evaluated for the possibility of taking food through the mouth and refusing a nasogastric tube. To eliminate violations, the orthodontic device PEBP was used, which was made in the dental laboratory from plastic and metal ligatures.

Against the background of treatment with an orthodontic device, there was an increase in blood oxygen levels, a decrease in BPD, and normalization of skin color. In all patients, in the first two days from the start of treatment, nutrition was restored through the oral cavity and the ability to refuse nutrition through a nasogastric tube.

The use of the PEBP orthodontic device makes it possible to effectively eliminate respiratory and nutritional disorders in the first months in patients with SPD.

The use of the PEBP orthodontic device makes it possible to effectively eliminate respiratory and nutritional disorders in the first months in patients with SPD.

Was to reveal the prevalence of dental abnormalities in children after mandibular distraction osteogenesis (MDO).

The study comprised 75 children aged 5-16 years (42 boys and 33 girls, mean age 9.8±4.2 years) who underwent MDO because of mandible underdevelopment associated with hemifacial microsomia (

=42), Robin syndrome (

=6), Treacher Collins syndrome (

=6), Hallermann-Streiff syndrome (

=1) or acquired conditions (

=16). The mean age at MDO was 6.3±4.4 years. Controls involved 25 children with mandibular underdevelopment (19 with hemifacial microsomis, 4 - with Robin syndrome and 2 with Treacher Collins syndrome, mean age 6.7±3.6 years) receiving orthodontic treatment and with no history of MDO.

In the study group abnormalities of lower molars were revealed in 42 children from 75. The prevalence of the affected first and second molars was 24.7% and 20.5%, respectively. Every tenth child (9.6%) had disorders of both molars. The risks for the first molar developmental defects after MDO was 12 times higher than in controls (OR=12.