Cytological characteristics of oral cavity tissues of experimental animals when using photopolymeric material

Chronic recurrent aphthous stomatitis (CRAS) belongs to the group of chronic, inflammatory, ulcerative diseases of the oral mucosa. The aim of this study was to identify the morphofunctional peculiarities in chronic recurrent aphthous stomatitis with therapeutical correction in soft tissues of the oral cavity of experimental animals in the modeling of chronic recurrent aphthous stomatitis. We performed experimental investigation for study of the morpho-functional state of tissues of the oral mucosa in CRAS and formed three groups of animals (rabbits) with different methods of treatment. Histological investigation have been performed. Conclusion of our research is that correction of tissual changes in chronic recurrent aphthous stomatitis could be obtained with application of gel with β-carotene, α-tocopherol, a mixture of vegetable oils; with ozone therapy and their combination.Keywords: chronic recurrent aphthous stomatitis, histology, experiment. АннотацияКовач И.В., Кравченко Л.И., Гаргин В.В*.Морфофункциональные особенности тканей ротовой полости при хроническом рецидивирующем афтозном стоматите с терапевтической коррекциейХронический рецидивирующий афтозный стоматит относится к группе хронических, воспалительных, язвенных заболеваний слизистой оболочки полости рта. Целью данного исследования явилось выявление морфофункциональных особенностей мягких тканей ротовой полости экспериментальных животных при моделировании хронического рецидивирующего афтозного стоматита с терапевтической коррекцией. Мы моделировали хронический рецидивирующий афтозный стоматит и изучили морфо-функциональное состояние тканей слизистой оболочки полости рта сформировав три группы животных (кроликов) с различными методами лечения. Было проведено гистологическое исследование. Вывод наших исследований заключается в том, что коррекция тканевых изменений при хроническом рецидивирующем афтозном стоматите может быть получена при применении геля с бета-каротином, альфа-токоферолом, смесью растительных масел, кроме этого при озонотерапии и комбинации указанных методов.Ключевые слова: хронический рецидивирующий афтозный стоматит, гистология, эксперимент. АнотаціяКовач І.В., Кравченко Л.І., Гаргін В.В.*Морфофункціональні особливості тканин ротової порожнини при хронічному рецидивуючому афтозний стоматит з терапевтичної корекцією Хронічний рецидивний афтозний стоматит відноситься до групи хронічних, запальних, виразкових захворювань слизової оболонки порожнини рота. Метою даного дослідження було виявлення морфофункціональних особливостей м'яких тканин ротової порожнини експериментальних тварин при моделюванні хронічного рецидивуючого афтозного стоматиту з терапевтичної корекцією. Ми моделювали хронічний рецидивний афтозний стоматит і вивчали морфо-функціональний стан тканин слизової оболонки порожнини рота сформувавши три групи тварин (кроликів) з різними методами лікування. Було проведено гістологічне дослідження. Висновок наших досліджень полягає в тому, що корекція тканинних змін при хронічному рецидивуючому афтозному стоматит може бути отримана при застосуванні гелю з бета-каротином, альфа-токоферолом, сумішшю рослинних масел, крім цього при озонотерапії та комбінації вказаних методів.Ключові слова: хронічний рецидивуючий афтозний стоматит, гістологія, експеримент.

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MORPHOFUNCTIONAL DISORDERS OF THE MUSCULO OF THE ORAL CAVITY AND THEIR PREVENTION IN CHILDREN WITH DISEASES OF THE GASTROINTESTINAL TRACT IN ORTHODONTIC TREATMENT

The actual problems in dentistry ◽

10.18481/2077-7566-2020-16-3-106-112 ◽

2020 ◽

Vol 16 (3) ◽

pp. 106-112

Author(s):

Dmitriy Demchenko ◽

Anna Podoprigora ◽

Yuliya Komarova ◽

Edvard Kalivradzhiyan ◽

Ilya Stepanov ◽

...

Keyword(s):

Gastrointestinal Tract ◽

Oral Cavity ◽

Orthodontic Treatment ◽

Complete Recovery ◽

Gastrointestinal Diseases ◽

Orthodontic Appliances ◽

Urgent Task ◽

Inflammatory Processes ◽

Cytological Characteristics ◽

Removable Orthodontic Appliances

Subject. At present, diseases of the gastrointestinal tract, with a high frequency in children aged 9―14 years, are accompanied by lesions of the oral mucosa. These conditions are aggravated with orthodontic treatment. Therefore, the development of a scheme for the prevention of complications in children with gastrointestinal diseases undergoing orthodontic treatment is an urgent task of modern dentistry. Purpose ― to consider the problem of the state of the oral cavity and the cytological characteristics of the mucous membrane in children with gastrointestinal diseases, physiological occlusion and malocclusion undergoing orthodontic treatment, to investigate the dynamics of inflammatory processes of the jaw mucosa under the bases of removable orthodontic appliances. Methodology. The study involved 60 children aged 7―15 years. The cytomorphometric method was used. Results. The results of the study showed the possibility of using the cytomorphometric method for diagnosing and evaluating the effectiveness of the use of various prevention programs and medicines during orthodontic treatment. Cytomorphometry revealed significant differences in the effectiveness of the proposed prophylaxis scheme in children, contributed to the improvement of cytogram parameters and normalization of the inflammatory-destructive index, however, complete recovery of all cytomorphological parameters in patients undergoing orthodontic treatment did not occur. Conclusions. To improve the level of oral hygiene for children undergoing orthodontic treatment, it is necessary to use not only therapeutic and prophylactic toothpastes, but also an additional amount of prophylaxis. Children with gastrointestinal tract diseases and malocclusion who are undergoing orthodontic treatment are recommended to include Lizobact drugs in the periodontal disease prevention regimen, however, the use of these drugs alone is not enough to completely eliminate the inflammatory process.

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Comparative morphology of the oral cavity in experimental animals and humans

Laboratornye Zhivotnye dlya nauchnych issledovanii (Laboratory Animals for Science) ◽

10.29296/2618723x-2020-01-02 ◽

2020 ◽

Vol 3 (1) ◽

Author(s):

Y.A. Gushchin ◽

V.V. Kvanchiani

Keyword(s):

Oral Cavity ◽

Comparative Morphology ◽

Experimental Animals

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Analytical Electron Microscopy (AEM) of Meningeal Cells Exposed to Particulate Cobalt During Studies of Experimental Epilepsy

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100053590 ◽

1982 ◽

Vol 40 ◽

pp. 186-187

Author(s):

R.G. Frederickson ◽

R.G. Ulrich ◽

J.L. Culberson

Keyword(s):

Electron Microscopy ◽

Analytical Electron Microscopy ◽

Experimental Epilepsy ◽

Metallic Cobalt ◽

Experimental Animals ◽

X Ray ◽

Brain Surface ◽

Meningeal Cells ◽

Analytical Electron ◽

The Brain

Metallic cobalt acts as an epileptogenic agent when placed on the brain surface of some experimental animals. The mechanism by which this substance produces abnormal neuronal discharge is unknown. One potentially useful approach to this problem is to study the cellular and extracellular distribution of elemental cobalt in the meninges and adjacent cerebral cortex. Since it is possible to demonstrate the morphological localization and distribution of heavy metals, such as cobalt, by correlative x-ray analysis and electron microscopy (i.e., by AEM), we are using AEM to locate and identify elemental cobalt in phagocytic meningeal cells of young 80-day postnatal opossums following a subdural injection of cobalt particles.

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Ultrastructure and analytical microprobe analysis of simian lung mite pigments

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100143249 ◽

1986 ◽

Vol 44 ◽

pp. 324-325

Author(s):

R. W. Cole ◽

J. C. Kim

Keyword(s):

Biomedical Research ◽

Tissue Damage ◽

Microprobe Analysis ◽

Old World Monkeys ◽

Old World ◽

Experimental Animals ◽

The Past ◽

Lung Mite ◽

Mite Infestations ◽

Cardiopulmonary System

In recent years, non-human primates have become indispensable as experimental animals in many fields of biomedical research. Pharmaceutical and related industries alone use about 2000,000 primates a year. Respiratory mite infestations in lungs of old world monkeys are of particular concern because the resulting tissue damage can directly effect experimental results, especially in those studies involving the cardiopulmonary system. There has been increasing documentation of primate parasitology in the past twenty years.

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Oral and Oropharyngeal Sensory Function in Adults With Chronic Obstructive Pulmonary Disease

American Journal of Speech-Language Pathology ◽

10.1044/2019_ajslp-19-00095 ◽

2020 ◽

Vol 29 (2) ◽

pp. 864-872

Author(s):

Fernanda Borowsky da Rosa ◽

Adriane Schmidt Pasqualoto ◽

Catriona M. Steele ◽

Renata Mancopes

Keyword(s):

Chronic Obstructive Pulmonary Disease ◽

Oral Cavity ◽

Pulmonary Disease ◽

Thermal Sensation ◽

Sensory Function ◽

Control Group ◽

Chronic Obstructive ◽

Obstructive Pulmonary Disease ◽

Age Related ◽

Copd Patients

Introduction The oral cavity and pharynx have a rich sensory system composed of specialized receptors. The integrity of oropharyngeal sensation is thought to be fundamental for safe and efficient swallowing. Chronic obstructive pulmonary disease (COPD) patients are at risk for oropharyngeal sensory impairment due to frequent use of inhaled medications and comorbidities including gastroesophageal reflux disease. Objective This study aimed to describe and compare oral and oropharyngeal sensory function measured using noninstrumental clinical methods in adults with COPD and healthy controls. Method Participants included 27 adults (18 men, nine women) with a diagnosis of COPD and a mean age of 66.56 years ( SD = 8.68). The control group comprised 11 healthy adults (five men, six women) with a mean age of 60.09 years ( SD = 11.57). Spirometry measures confirmed reduced functional expiratory volumes (% predicted) in the COPD patients compared to the control participants. All participants completed a case history interview and underwent clinical evaluation of oral and oropharyngeal sensation by a speech-language pathologist. The sensory evaluation explored the detection of tactile and temperature stimuli delivered by cotton swab to six locations in the oral cavity and two in the oropharynx as well as identification of the taste of stimuli administered in 5-ml boluses to the mouth. Analyses explored the frequencies of accurate responses regarding stimulus location, temperature and taste between groups, and between age groups (“≤ 65 years” and “> 65 years”) within the COPD cohort. Results We found significantly higher frequencies of reported use of inhaled medications ( p < .001) and xerostomia ( p = .003) in the COPD cohort. Oral cavity thermal sensation ( p = .009) was reduced in the COPD participants, and a significant age-related decline in gustatory sensation was found in the COPD group ( p = .018). Conclusion This study found that most of the measures of oral and oropharyngeal sensation remained intact in the COPD group. Oral thermal sensation was impaired in individuals with COPD, and reduced gustatory sensation was observed in the older COPD participants. Possible links between these results and the use of inhaled medication by individuals with COPD are discussed.

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