Lykhota K. Clinical and laboratory substantiation of comprehensive treatment and prevention sagittal teeth anomalies

In the thesis specified the scientific data on the main factors that contribute to the occurrence sagittal bite anomalies, clinical and anthropometric characteristics in different age groups of individuals with sagittal malocclusions. The research also clarifies peculiarities of radiological (X-ray) and cephalometric indications within patients of different age groups with sagittal malocclusions. In addition, there is data investigated and analyzed on the performance of the functional activity of masticatory muscles and correlation before orthodontic intervention and after the normalization of clinical and anthropometric indicators. For the first time, a mechanical-mathematical model was developed for treatment of sagittal bite anomalies based on modeling of tense-strain state system: dentition device - elastomeric positioner. It showed that the major restructuring of intermaxillary relations was not limited to alveolar processes zone where there was alignment of the dentition but it also happened in the area of TMJ and muscles attached to the lower jaw. The research also reveals method of treatment of sagittal bite anomalies using individual and standard functional orthodontic appliances and the combination of mechanically active permanent appliances in patients of different age groups. This contributed to a rapid normalization of nasal breathing, eliminating harmful miofunctional habits and restoring functional activity of TDS (teeth-dental system) immediately after orthodontic treatment. A comparative evaluation of the effectiveness of elaborated methods of treatments and conventional methods of treatment of sagittal bite anomalies was carried out for the first time in this research.