The aim is to determine the clinical and morphological dependencies, which are important for diagnostics, treatment and prediction of outcomes of pathological processes in the region of the LTM with complicated eruption, as based on the study of histopathological changes of paradental tissue (mucous membrane, walls of retromolar pocket, alveolar bone tissue). Materials and methods: The materials of the study were 34 biopsy specimens of pathologically altered soft tissue and parodontium obtained as a result of pericoronectomy, extraction of the LTM and other surgical interferences performed based on the relevant indications in 28 patients in the region of the LTM with complicated eruption. Morphological and statistical research methods were used. Results: The local pathological processes, which chronologically precede the destructive changes in the hard tissue of a tooth (caries), are developed in patients of both genders with complicated LTM eruption in soft tissue of parodontium and the adjacent bone tissue of the alveolar wall in the majority of cases. As per biopsy examinations, the frequency of the main pathological processes in paradental tissue in case of complicated LTM eruption varies from 25 to 60 % of the number of biopsy specimens and occurs in various combinations in patients with different values of clinical parameters. The correlation relationships between the patients’ clinical data and the morphological parameters of damage to paradental tissue are weak, multidirectional and uncertain in the majority of combinations (considering the available number of biopsy specimens studied). The close certain positive dependence between the damage of the squamous epithelium and the inflammation activity in the lamina propria mucosae, covering the tooth: in the vast majority of cases, the presence of damaged epithelium (within the biopsy specimen) is associated with the inflammation of high activity, was established as based on correlation relationships between the morphological parameters of damage to paradental tissue. Conclusions: The found pathological changes and the correlations justify surgical tactics on paradental soft and osseous tissues that are directed on the LTM sparing.
In the conditions of the martial law and COVID-19 pandemic restrictions on the territory of Ukraine, the blended form of education turned out to be the only possible form of the educational process. The article highlighted the peculiarities of conducting practical classes in the discipline "Surgical dentistry" with foreign students at the Department of Oral and Maxillofacial Surgery of the Bogomolets National Medical University (NMU) in the conditions of martial law in Ukraine. For the implementation and adequate virtual distance lerning at the University, LIKAR_NMU education platform, Zoom, Google Meet, the university website, the NMU library website, Skype, Telegram, Viber messengers, e-mail were used. However, the biggest disadvantage of distance learning was the lack of opportunity to work with the patient and acquire practical skills. Foreign students who returned to Ukraine (or being in Ukraine) attended offline training, mastered practical skills on phantoms and dummies, were present at surgical operations in the clinic, independently performed anesthesia under the guidance of a teacher, removed teeth, assisted in operations on the maxillofacial area. Due to video conferences, distance learning students also had the opportunity, to see the operations, carried out in the Bogomolets Dental Medical Center, online, in real time. Thanks to the technical capabilities and educational Internet platforms, which are actively used during distance learning by students and teachers of the university, the initial process of obtaining a modern higher medical education, in particular surgical stomatology and maxillofacial surgery, continues and improves in wartime conditions
The main purpose of the study is to build 3D model of temporomandibular joint and mandible using programs for modelling and design, research stress and strain in cartilage and bone of model depending on different contraction of chewing muscles (especially lateral pterygoid muscle). There were used such methods as computer tomography data, finite element method and analysis topography of lateral pterygoid muscle on cadavers. In results of study was obtained maximal stress in anterior and distal parts of articular disc between 1,4–3 MPa and 0,4–1 MPa. Thus, static loads of articular disc were different, depends on force of contraction lateral pterygoid muscle. Muscle disturbances (hyperfunctioning, atrophy etc.) should be considered in treatment of temporomandibular dysfunction and examined on magnetic resonance investigation if it is present in the same patient.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.