Кафедра стоматології дитячого віку

Modelling of the linear dimensions of dental arches in Ukrainian young men and young women with physiological occlusion and a wide facial type depending on the characteristics of Burstone cephalometric indicators and computed tomography tooth dimensions

2026-05-18T09:14:33Z

Modelling of the linear dimensions of dental arches in Ukrainian young men and young women with physiological occlusion and a wide facial type depending on the characteristics of Burstone cephalometric indicators and computed tomography tooth dimensions Orlovskiy, I.V.; Beliaiev, E.V.; Yur, A.M.; Zakalata, T.R.; Isakova, N.M.; Romashkina, O.A.; Ruban, M.M. The variability of the linear parameters of dental arches may be determined by craniofacial characteristics and tooth sizes. Conducting a study that will allow a more accurate description of the interaction, i.e., the relationships of these three structures within a specific population, will make it possible to increase the validity of orthodontic diagnosis and treatment. The selection of Burstone cephalometric parameters is the most appropriate, given the limited number of studies using this analysis in the Ukrainian population. The aim of the study – development and analysis of regression models of the linear dimensions of dental arches in Ukrainian young men and young women with physiological occlusion and a wide facial type depending on the characteristics of Burstone cephalometric indicators and computed tomography tooth dimensions. On primary computed tomography scans and cephalograms of 25 Ukrainian young men and 25 young women with physiological occlusion and a wide facial type, obtained from the databank of the Research Center and the Department of Pediatric Dentistry of the National Pirogov Memorial Medical University, Vinnytsia, measurements of linear and angular indicators by the Burstone method and the dimensions of teeth and dental arches were performed. Regression models of dental arch dimensions depending on cephalometric indicators and computed tomography tooth dimensions were built using the licensed package “Statistica 6.0”. It was established that in young men and young women with physiological occlusion and a wide facial type, all 18 possible significant models of linear parameters necessary for constructing the correct shape of dental arches were built depending on the characteristics of Burstone cephalometric indicators and computed tomography tooth dimensions, with a coefficient of determination (R2) greater than 0.6 (in young men R2= from 0.829 to 0.980, p<0.001 in all cases; in young women R2= from 0.680 to 0.962, p<0.001 in all cases). Analysis of the frequency of inclusion of computed tomography tooth dimensions and Burstone cephalometric indicators in the models showed: in young men, cephalometric indicators were included most often (23.70 %), the width of the crown part of the corresponding teeth in the mesiodistal plane (20.74 %), and the width of the crown part of the corresponding teeth in the vestibulo-oral plane (17.04 %); in young women, cephalometric indicators were included most often (27.21 %), the width of the crown part of the corresponding teeth in the mesiodistal plane (13.24 %), the width of the crown part of the corresponding teeth in the vestibulo-oral plane (11.03 %), and the width of the cervical part of the corresponding teeth in the vestibulo-oral plane (10.29 %). Analysis of the frequency of inclusion of the corresponding teeth in the models showed: in young men, maxillary lateral incisors and canines were included most often (13.59 % each), maxillary central incisors (11.65 %), and mandibular canines (10.68 %); in young women, maxillary central incisors were included most often (23.23 %), mandibular canines (14.14 %), mandibular lateral incisors (13.13 %), maxillary lateral incisors (12.12 %), mandibular central incisors (11.11 %), and maxillary canines (10.10 %). The variability of the linear parameters of dental arches may be determined by craniofacial characteristics and tooth sizes. Conducting a study that will allow a more accurate description of the interaction, i.e., the relationships of these three structures within a specific population, will make it possible to increase the validity of orthodontic diagnosis and treatment. The selection of Burstone cephalometric parameters is the most appropriate, given the limited number of studies using this analysis in the Ukrainian population. The aim of the study – development and analysis of regression models of the linear dimensions of dental arches in Ukrainian young men and young women with physiological occlusion and a wide facial type depending on the characteristics of Burstone cephalometric indicators and computed tomography tooth dimensions. On primary computed tomography scans and cephalograms of 25 Ukrainian young men and 25 young women with physiological occlusion and a wide facial type, obtained from the databank of the Research Center and the Department of Pediatric Dentistry of the National Pirogov Memorial Medical University, Vinnytsia, measurements of linear and angular indicators by the Burstone method and the dimensions of teeth and dental arches were performed. Regression models of dental arch dimensions depending on cephalometric indicators and computed tomography tooth dimensions were built using the licensed package “Statistica 6.0”. It was established that in young men and young women with physiological occlusion and a wide facial type, all 18 possible significant models of linear parameters necessary for constructing the correct shape of dental arches were built depending on the characteristics of Burstone cephalometric indicators and computed tomography tooth dimensions, with a coefficient of determination (R2) greater than 0.6 (in young men R2= from 0.829 to 0.980, p<0.001 in all cases; in young women R2= from 0.680 to 0.962, p<0.001 in all cases). Analysis of the frequency of inclusion of computed tomography tooth dimensions and Burstone cephalometric indicators in the models showed: in young men, cephalometric indicators were included most often (23.70 %), the width of the crown part of the corresponding teeth in the mesiodistal plane (20.74 %), and the width of the crown part of the corresponding teeth in the vestibulo-oral plane (17.04 %); in young women, cephalometric indicators were included most often (27.21 %), the width of the crown part of the corresponding teeth in the mesiodistal plane (13.24 %), the width of the crown part of the corresponding teeth in the vestibulo-oral plane (11.03 %), and the width of the cervical part of the corresponding teeth in the vestibulo-oral plane (10.29 %). Analysis of the frequency of inclusion of the corresponding teeth in the models showed: in young men, maxillary lateral incisors and canines were included most often (13.59 % each), maxillary central incisors (11.65 %), and mandibular canines (10.68 %); in young women, maxillary central incisors were included most often (23.23 %), mandibular canines (14.14 %), mandibular lateral incisors (13.13 %), maxillary lateral incisors (12.12 %), mandibular central incisors (11.11 %), and maxillary canines (10.10 %).

Порівняльний аналіз стану тканинпародонта при ортодонтичномулікуванні елайнерами та вестибулярнимибрекет-системами

2028-03-10T04:36:43Z

Порівняльний аналіз стану тканинпародонта при ортодонтичномулікуванні елайнерами та вестибулярнимибрекет-системами Дудік, Олена Петрівна; Попова, Олена Іванівна; Попов, Максим Володимирович Актуальність дослідження зумовлена зростанням поширеності ортодонтичного лікування серед дорослого населення та необхідністю забезпечення не лише функціональних і естетичних результатів, а й збереження пародонтального здоров’я як ключового чинника довготривалої стабільності лікування. Розширення застосування елайнерів поряд із традиційними вестибулярними брекет-системами актуалізує потребу в науково обґрунтованому порівняльному аналізі їхнього впливу на тканини пародонта, оскільки наявні дані є фрагментарними, а клінічні результати — неоднозначними. Мета: встановлення особливостей динаміки клінічних та індексних показників стану тканин пародонта в пацієнтів під час ортодонтичного лікування залежно від типу застосованої ортодонтичної апаратури та визначення підходів до мінімізації пародонтальних ризиків. Методи дослідження ґрунтуються на клінічномуобстеженні пацієнтів, застосуванні стандартизованих гігієнічних і гінгівальних індексів, проспективному порівняльно-му спостереженні в динаміці ортодонтичного лікування, а також статистичному аналізі кількісних показників, поданиху вигляді середніх значень і показників варіабельності у визначені часові інтервали. Результати. Досліджено вихід-ний стан тканин пародонта та встановлено, що значна частина пацієнтів розпочинає ортодонтичне лікування з наяв-ністю початкових запальних змін без клінічних ознак деструкції. Виявлено, що в процесі лікування тип ортодонтичноїапаратури зумовлює різну динаміку пародонтальних показників. Доведено, що використання елайнерів супроводжу-ється помірними та переважно транзиторними змінами, тоді як вестибулярні брекет-системи асоціюються зі стійкимнакопиченням зубного нальоту та тривалим підвищенням гінгівальних індексів. Експериментально підтверджено, щонайбільш критичним періодом формування запальних змін є перші місяці ортодонтичного лікування. Висновки. Вста-новлено, що пародонтальні ризики при ортодонтичному лікуванні мають не лише поведінковий, а й апаратурно зу-мовлений характер. Обґрунтовано доцільність диференційованого вибору ортодонтичної апаратури та інтенсифікації профілактичного супроводу на ранніх етапах лікування. Перспективи подальших досліджень пов’язані з оцінюван-ням довготривалого впливу хронічних запальних змін у тканинах пародонта на стабільність ортодонтичних резуль-татів і розробленням індивідуалізованих профілактичних протоколів з урахуванням типу ортодонтичної апаратури тапрофілю ризику пацієнтів.

Post-concussion syndrome: Part 1. Overview of the epidemiology and pathophysiology of mild blast-related traumatic brain injury

2026-01-07T07:57:44Z

Post-concussion syndrome: Part 1. Overview of the epidemiology and pathophysiology of mild blast-related traumatic brain injury Biloshytsky, V. V.; Zavaliy, Yu. V.; Pachevska, A. V.; Biloshytskyi, I. V. This article provides a review of current data on the epidemiology and pathophysiology of mild blast-related traumatic brain injury (mbTBI), which has become the leading type of injury in modern military conflicts. The prevalence of mbTBI among U.S. military personnel during operations in Afghanistan and Iraq is described, with emphasis on the cumulative effect of repeated injuries that increases the risk of chronic traumatic encephalopathy. The paper discusses the main mechanisms of blast wave impact on the brain, including direct and indirect effects, pathomorphological changes, and differences from “civilian” mild traumatic brain injury (TBI). Current insights into molecular and cellular alterations underlying mbTBI are summarized, along with data from experimental and clinical studies. These findings are crucial for developing effective diagnostic approaches, treatment strategies, and rehabilitation programs for service members and veterans.

Correlations of teleradiometric «skeletal and dento-skeletal» indices according to the Ricketts method with the sizes of teeth and dental arches in Ukrainian young men and young women with physiological occlusion without and with consideration of facial type

2026-01-16T09:40:10Z

Correlations of teleradiometric «skeletal and dento-skeletal» indices according to the Ricketts method with the sizes of teeth and dental arches in Ukrainian young men and young women with physiological occlusion without and with consideration of facial type Brotskyi, N. O. The increasing prevalence of orthodontic pathology among adolescents necessitates a deeper analysis of morphological factors influencing the formation of the dentofacial system. Studying the relationships between maxillofacial structures and the dimensions of the dental arches taking into account the type of face is an important step towards early diagnosis and prevention of occlusion disorders. The aim of the study was to establish the features of correlations between «skeletal and dento-skeletal» teleradiometric indicators according to the Ricketts method with the dimensions of teeth and dental arches in Ukrainian young men and young women with physiological occlusion without and with the type of face. In 41 Ukrainian young men and 68 Ukrainian young women with physiological occlusion without and with Garson's facial type, teleradiometric «skeletal and dento-skeletal» parameters were determined by the Ricketts method (distances A-NPog, 6u-PTV, 1l-APog, 1u-APog, Xi-OcP and angles ANS-Xi-PM, Mand1-APog, Max1-APog), computed tomography dimensions of teeth and dental arches. Correlations between «skeletal and dento-skeletal» teleradiometric parameters and computed tomography dimensions of teeth and dental arches were assessed in the licensed package «Statistica 6.0» using nonparametric Spearman statistics. When analyzing reliable and medium-strength unreliable correlations between «skeletal and dento-skeletal» teleradiometric indicators according to the Ricketts method with the sizes of teeth and dental arches, it was established: in young men and young women, regardless of facial type, there were, respectively, 7.14 % (mostly direct medium-strength reliable) and 8.93 % (mostly direct medium- and weak-strength reliable) relationships with the sizes of teeth of the upper jaw, 6.79 % (mostly direct medium-strength reliable) and 11.07 % (mostly direct weak- and medium-strength reliable) relationships with the sizes of teeth of the lower jaw, and 9.03 % (mostly direct medium-strength reliable) and 19.44 % (mostly direct medium-strength reliable) with the sizes of dental arches; in young men and young women with a wide face type – respectively 12.86 % (mainly direct average strength unreliable) and 21.07 % (mainly direct average strength unreliable, inverse average strength reliable and unreliable) connections with the sizes of the teeth of the upper jaw, 15.36 % (mainly direct and inverse average strength unreliable) and 27.14 % (mainly inverse and direct average strength unreliable) connections with the sizes of the teeth of the lower jaw and 19.44 % (mainly inverse and direct average strength unreliable) and 24.31 % (mainly direct and inverse average strength reliable and unreliable) with the sizes of the dental arches; in young women with a very wide face type – 14.64 % (evenly direct and inverse average strength reliable and unreliable) connections with the sizes of the teeth of the upper jaw, 13.93 % (mostly inverse average strength reliable and unreliable) connections with the sizes of the teeth of the lower jaw and 27.78 % (mostly inverse average strength reliable and unreliable) with the sizes of the dental arches. In Ukrainian young men and young women with physiological occlusion, both without taking into account the type of face, and in representatives with a wide face type, pronounced manifestations of sexual dimorphism of the connections between «skeletal and dento-skeletal» teleradiometric indicators according to the Ricketts method and computed tomography sizes of the teeth and dental arches were established.