scholarly journals COMPARATIVE ANALYSIS OF TISSUE EXERTION OF MUCOUS MEMBRANES DURING DIFFERENT STAGES OF TENSION IN PERFORMING ON CLOTTING OPERATION

2018 ◽  
pp. 5-8
Author(s):  
D.V. Kaplun ◽  
V.M. Skrupnik ◽  
S.O. Stavitsky
Keyword(s):  
Tensile Strength ◽  
Comparative Analysis ◽  
Connective Tissue ◽  
Oral Cavity ◽  
Mucous Membrane ◽  
Soft Core ◽  
Elastic Fibers ◽  
Mucous Membranes ◽  
Biomechanical Parameters ◽  
Tissue Tension

Taking into account the development of modern surgical stomatology, the problem of optimizing the closure of the wounds of the mucous membrane in the oral cavity remains relevant. In our opinion, it is important to study the morphological properties of the mucous membranes of the oral cavity and optimal tensions and tissue stresses in the area of suturing. It is known that the most susceptible to the action of mechanical factors area is the mucous membrane of the gums. However, taking into account the biomechanical parameters, the mucous membrane of the gum is practically not described. The aim of the study was to carry out a comparative analysis of mucous membranes of varying degrees of tension during fracture operations in the oral cavity. The material is taken to the bureau of forensic examination from corpses and both sexes and the period of mature age for histological studies of conditionally healthy mucous membrane of gum. The fence is carried out in the area of incisors, canines and first premolars from both halves of the upper and lower jaws with a standard dental instrument set were compared: a periodontological kit for curettage. The material is collected both in the area of papilla gum, and from its fixed part. Polarization microscopy is used to study the fibroarchitectonics of connective tissue formations. We used a contact strain gauge device to study the biomechanical parameters of the mucous membrane of the gums in normal and at different degrees of tensile of the mucous membranes. At various degrees of tension of the mucous membrane of the cavity of the mouth connective tissue plate loses the characteristic spatial orientation of the beams, the deep disruption of the entire fibrous frame occurs. Tissue stress recording was performed taking into account the tensile strength: weak (5%), average (7%) and strong (10%). Regardless of the degree of this pathology there is a decrease in the indicator we have chosen. Thus, with a weak degree of tension, the tissue pressure of the gum mucus decreases to 208.08 + 19.2 [6.07] Pa. At an average degree, the selected indicator is 149.43 + \ - 20.25 [6.4] Pa. A strong tension reduces the tissue tension of this area to 102.77 + 12.32 [3.9] Pa. One of the factors that provides high values of tissue gum voltage in the norm (350.4 · 9.69 Pa) is its fibrous components, which form a three-dimensional structure in the collagen beams of the 1st and 2nd order relative to the poorly developed elastic network. Different degrees of tensile of mucous membranes as a model of disorganization with the subsequent drop in tissue tension of the fibrous core were described. At the same time, the index of tissue voltage reduction is directly dependent on the tensile strength and is 208.08 + 19.2 Pa. The data presented indicate the disorganization of the fiber composition of the gums while tightening them. The expressiveness and nature of the changes depend on the degree of tension. Clinical manifestation of pathological processes in fibrous components of ascetic connective tissue is characterized by a decrease in tissue tension indices. Moreover, there is a direct relationship between the degree of tensile of the mucous membrane and the adequate reduction of the tense state of the soft core. Various degrees of tension of the mucous membrane can be considered as a kind of model of the fiber matrix with the dynamics of changes in the biomechanical parameters of tissues. The obtained data on the example of normal anatomy of the gums confirm the general pattern in the structures of the soft core - the quantitative ratio, the way of interaction of collagen and elastic fibers. Their spatial architectonics determine the deformative and strength properties of the connective tissue. For a detailed study of structural and biomechanical correlations we have selected mucous membranes with a different degree of tension. Our research has revealed structural changes in the fibrous gingival cortex against a background of different tensions with adequate tissue tension reduction.

scholarly journals Topical Occlusive Corticosteroid Therapy for the Treatment of Gingival Manifestation of Mucous Membrane Pemphigoid - a Case Report

Folia Medica ◽  
2020 ◽  
Vol 62 (4) ◽  
pp. 866-870
Author(s):  
Liliya Kavlakova ◽  
Svitlana Bachurska
Keyword(s):  
Case Report ◽  
Oral Health ◽  
Oral Cavity ◽  
Topical Corticosteroid ◽  
Mucous Membrane ◽  
Vital Role ◽  
Mucous Membrane Pemphigoid ◽  
Mucous Membranes ◽  
Symptomatic Effect ◽  
Common Manifestation

Mucous membrane pemphigoid (MMP) is a chronic, autoimmune, subepithelial vesiculobullous disease that very frequently affects the mucous membranes and less often the skin. Oral cavity is the most commonly affected site and desquamative gingivitis (DG) is the most common manifestation. This is the main reason why dentists play a vital role in the diagnosis and managing the oral health of patients. Treatment is usually challenging, however, it only can achieve temporary symptomatic effect. We report a case of desquamative gingivi-tis, manifestation of MMP that was treated successfully with topical corticosteroid. The latter was applied by using of individual made custom trays to improve clinical efficacy. 

On the clinical course of multiforme exudative erythema of the oral cavity (literature review)

2020 ◽  
Vol 25 (1) ◽  
pp. 71-74
Author(s):  
A. I. Bulgakova ◽  
Z. R. Hismatullina ◽  
M. V. Zatsepina ◽  
J. A. Kudryavtseva
Keyword(s):  
Literature Review ◽  
Oral Cavity ◽  
Mucous Membrane ◽  
Oral Mucosa ◽  
Erythema Multiforme ◽  
Clinical Picture ◽  
Clinical Course ◽  
Clinical Manifestations ◽  
Timely Diagnosis ◽  
Mucous Membranes

Relevance. Multiform exudative erythema is a polyetiological disease, which is characterized by damage not only to the skin, but also to the mucous membranes, mainly the mucous membrane of the oral cavity. The article reviews the literature on the clinical course of multiform exudative erythema of the oral cavity.Purpose. Study the clinical course of erythema multiforme.Materials and methods. We conducted a review of studies of the etiology, pathogenesis, prevalence of erythema multiforme according to domestic and foreign authors, and also reflected the identification of various forms and clinical manifestations of this disease.Results. The analysis of clinical manifestations of erythema multiforme exudative in the oral cavity, the most common symptoms and manifestations on the oral mucosa.Conclusion. The clinical picture of lesions of the oral mucosa in multiform exudative erythema is very diverse, which is important for the timely diagnosis of the disease.

scholarly journals Influence of the type of autonomic tone on the volume of the mucous membrane of the small intestine of laying hens

2018 ◽  
Vol 9 (3) ◽  
pp. 453-459
Author(s):  
A. Tybinka ◽  
H. Blishch ◽  
O. Shchebentovska
Keyword(s):  
Small Intestine ◽  
Connective Tissue ◽  
Lamina Propria ◽  
Mucous Membrane ◽  
Laying Hens ◽  
Elastic Fibers ◽  
Autonomic Tone ◽  
Regulatory Effects ◽  
Structural Parts ◽  
The Relationship

The connection between the separate structural parts of the mucous membrane of the small intestine of laying hens and the typological features of the autonomic tone were investigated. The studies were conducted on adult chickens of the cross-breed "Isa-Brown", which were divided into two groups: sympathicotonic chickens and sympathico-normotonic chickens, by the methods of electrocardiography and variation-pulsometry research. In the small intestine of the poultry of each group, the linear dimensions were determined first, and then the volume of the entire mucous membrane and its separate parts (villi, crypt, muscular plate), as well as the volume of connective tissue fibers in the crypt region. Research has shown that the villi account for ¾ of the volume of the entire mucous membrane. The volume of villi in the entire small intestine is more important in sympathico-normotonic chickens. This same poultry group has an advantage in the indicators of the volume of the muscular plate, but only in the duodenum and jejunum. In indicators of crypt volume, it turned out to be quite the opposite of the relationship with the typology of autonomous influences. In all studied intestines, the higher values of this indicator belong to the sympathotonic chickens. However, in terms of the volume of the entire mucous membrane, larger values still correspond to sympathico-normotonic chickens. Sympathicotonic chickens are inferior to them in the duodenum – at 1,005 mm3, in the jejunum – at 2,699 mm3 and in the ileum – only 78 mm3. Investigating the structure of the villi, we established that the volume of their epithelium in all three sections of the small intestine has higher values in the sympathico-normotonic chickens, and the larger volume of the lamina propria of the villi in the sympathicotonic chickens. At the same time, the connection with the type of autonomic tone is reflected in the ratio between the two layers of villi. In all three sections of the small intestine of sympathicotonic chickens, the ratio between the epithelium and the lamina propria was, on average, 65%/35%, or 2/1. In sympathico-normotonic chickens, this ratio varied and, on average, equalled 75%/25%, or 3/1. The increase in the tone of sympathetic centers contributes to the growth of volume both as the total amount of fibers of connective tissue, and also as separate elastic fibers in the area of crypt. According to the data,indicators of the sympathico-normotonic chickens are inferior to those of sympathicotonic chickens in all of the small intestine. It was also found that in both groups of poultry the volume of elastic fibers was approximately half the volume of all fibers of the connective tissue of the duodenum. In other sections of the small intestine, this figure was reduced to about ⅓. Consequently, the typological features of the autonomic tone, providing various trophic-regulatory effects on the mucous membrane of the small intestine, cause the formation of differences in its volume.

scholarly journals ADDITIONAL CHARACTERISTICS OF HYBRID COMPOSITES FOR FILLING TEETH UNDER LOCAL MOUNTING CLOCKS

2021 ◽  
pp. 29-36
Author(s):  
V.F. Makeev ◽  
V.S. Kukhta ◽  
O.S. Kyrmanov ◽  
V.R. Skalsky
Keyword(s):  
Tensile Strength ◽  
Comparative Analysis ◽  
Oral Cavity ◽  
Air Temperature ◽  
Hybrid Composites ◽  
Experimental Studies ◽  
Operating Conditions ◽  
Dental Composites ◽  
Local Loading ◽  
Ball Diameter

For the rational use of materials, it is necessary to have data on their ability to resist deformation and destruction. In particular, in each case it is necessary to have information on the stiffness, strength and resistance to destruction of materials in the specified operating conditions of the elements. To determine such strength characteristics of the material, certain studies are carried out. According to the analysis of literature sources in the study of dental composites mainly determine the tensile strength (bending) and compression [2-10], because it is subjected to restore materials during their operation in the oral cavity. The purpose of the study is to conduct a comparative analysis of the strength of hybrid composites of domestic and imported production during their local loading: Latelux (Latus, Ukraine), TETRIC N-CERAM (Ivoclar Vivadent, Liechtenstein), CHARISMA CLASSIC (Kulzer, Germany). To conduct research, 10 samples of each dental polymer composite were made. Packaging and molding of the material into a specially designed form was performed in laboratory conditions at an air temperature of 18 210 C with their subsequent polymerization with a LED photopolymer lamp Bluephase 20i (G2) (Ivoclar Vivadent). Before the test, the samples were kept for 24 hours at a temperature of 370 C in saline. The samples were loaded on the SVR-5 installation using a ball indenter (ball diameter mm steel SHX15, modulus of elasticity GPa, Poisson's ratio) with a speed of 0.002 mm/s. The purpose of the study is to conduct a comparative analysis of the strength of hybrid composites of domestic and imported production during their local loading. According to the results of experimental studies on the load of PB fracture, the Charisma Classic composite (5.72 ± 0.16 kN) has the highest strength, Latelux (4.23 ± 0.53 kN) the lowest, and Tetric N-Ceram (5, 03 ± 0.71 kN) occupies an intermediate position. To move the indenter, we obtained the following order of materials (in ascending order): Latelux (0.94 ± 0.11 mm); Charisma Classic (1.02 ± 0.04 mm); Tetric N-Ceram (1.03 ± 0.17 mm).

scholarly journals STRUCTURAL CHANGES OF THE ORAL MUCOSA IN RATS WITH INSULIN RESISTANCE, IODINE DEFICIENCY AND UNDER CONDITIONS OF THEIR COMBINATION

2020 ◽  
Vol 16 (4) ◽  
pp. 3-19
Author(s):  
S.P. Huranych ◽  
N.M. Voronych-Semchenko ◽  
M.M. Bagrii
Keyword(s):  
Insulin Resistance ◽  
Connective Tissue ◽  
Oral Cavity ◽  
Mucous Membrane ◽  
Oral Mucosa ◽  
Iodine Deficiency ◽  
Structural Changes ◽  
Control Group ◽  
Histological Structure ◽  
Periodontal Tissues

Relevance. The relationship between endocrinopathies and the condition of the oral cavity is associated with disorders of metabolism, hemodynamics, immunological and neuroregulatory changes. Since the first line of contact with the environment of the oral cavity is the mucous membrane, changes in its properties adversely affect the functional state of other periodontal tissues. Objective: to examine the structural changes of the oral mucosa in rats with combined endocrinopathy. Materials and methods. The studies were carried on 120 rats, which were divided into three experimental (animals with iodine deficiency – ID, insulin resistance – IR, IR on the background of ID) and a control group of animals. Histological examination of the oral mucosa, computer morphometry, and densitometry of objects was performed. Results. In rats with ID, the epithelium of the mucous membrane was characterized by the development of acanthosis, expansion of the granular layer, enhanced keratin formation. The development of IR caused hyperplastic changes in the epithelium with the formation of unexpressed cords of acanthosis, epithelial basal hypercellular infiltration, which was confirmed by morphometric data. Under conditions of combined endocrinopathy, more pronounced changes in the histological structure of oral mucosa were observed. In particular, the development of mucosal edema in connective tissue, with predominantly macrophage hypercellularity at the periphery, was noted. Densitometric examination of the samples indicated a decrease in the optical density of connective tissue. At the same time, hyperplastic changes in most layers of the epithelium and pronounced changes in the vascular wall were observed. Conclusions. Combined endocrinopathy leads to pronounced changes of the oral mucosa, which can lead to disruption of the structure of periodontal tissues and the entire tooth-alveolar complex.

scholarly journals Assessment of safety of influence of radiation of lengths of waves of 410, 580, and 630 nanometers for skin and a mucous membrane

2020 ◽  
Vol 19 (2) ◽  
pp. 78-82
Author(s):  
L. S. Kholupova ◽  
S. I. Surkichin
Keyword(s):  
Adverse Effect ◽  
Oral Cavity ◽  
Mucous Membrane ◽  
Emission Spectra ◽  
Laboratory Animals ◽  
Pathological Changes ◽  
Practical Application ◽  
Second Stage ◽  
Mucous Membranes ◽  
Negative Effect

Background. The safety effects of individual emission spectra of visible light are currently not well understood. Based on the above works, one can only indirectly judge the presence or absence of an adverse effect of the selected spectrum during mototherapy. Aims: in our work, the goal was to detect the presence of a negative effect of certain wavelengths (410 nm, 580 nm and 630 nm) during mono-exposure to mucous membranes and skin. Methods. At the first stage, the effect of radiation with wavelengths of 410 nm and 630 nm on the mucous membrane of the oral cavity of laboratory animals was determined. At the second stage of the study, 30 women aged 3545 years with signs of photodamage of the skin took part. Results. No undesirable consequences were recorded either immediately after the procedure, or after 20 days. The results of histological examination at all stages of the study indicated the absence of pathological changes. Conclusions. The results showed that mono-exposure with wavelengths of 410 nm, 580 nm and 630 nm is safe and can be recommended for further study and practical application.

Foundation for the Prevention and Pathological Aspects of Diseases of the Mucous Membranes of the Oral Cavity (Review)

2020 ◽  
Vol 3 (6) ◽  
pp. 8-11
Author(s):  
Bakaev Zh. N.
Keyword(s):  
Oral Cavity ◽  
Rural Women ◽  
Rural Areas ◽  
Southern China ◽  
Age Groups ◽  
Urban Residents ◽  
Volgograd Region ◽  
Mucous Membranes ◽  
The Russian Federation ◽  
Two Age Groups

According to the authors, the prevalence of SOPR diseases is from 3 to 20%.In a study of 1573 residents of southern China in two age groups who use tobacco and alcohol, the incidence of SOPR was higher among men living in rural areas compared to urban residents. Among women aged 35-44 years, the incidence was higher in urban women, and in the 65-77-year-old group in rural women. In the course of studies in Brazil, among 335 patients older than 60 years, 646 diseases of the SOPR were identified. Similar results were obtained in the analysis of SOPR diseases in the Volgograd region of the Russian Federation

ETIOLOGICAL FACTORS OF SQUAMOUS CELL CANCER OF THE MUCOUS MEMBRANE OF THE ORAL CAVITY

2017 ◽  
Vol 63 (5) ◽  
pp. 703-707
Author(s):  
Vladimir Nikolenko ◽  
Yekaterina Kochurova ◽  
Aleksandr Mukhanov
Keyword(s):  
Oral Cavity ◽  
Mucous Membrane ◽  
Squamous Cell ◽  
Preventive Measures ◽  
Causal Relation ◽  
Cell Cancer ◽  
General Assumption ◽  
Etiological Factors ◽  
Long Acting ◽  
Potential Pathogenicity

Modern data of the etiology of squamous cell carcinoma (SCC) of the mucous membrane of the oral cavity (MMOC) show an increasing prevalence of the disease, a high mortality rate despite the development of modern methods of diagnosis and treatment. SCC is a group of polyetiological diseases. Among the most often etiological factors the use of tobacco products is found as one of the main cause of the disease with the division into active or passive methods of their use, prevalence and potential pathogenicity. Also the risk of the development of SCC MMOC depends on the consumption of alcoholic product as the long-acting traumatic factor. There were analyzed and considered the most common precancerous diseases of the mucous membrane of the mouth, their private and common significance in the structure of precancerous diseases. There was revealed the high correlation between periodontal disease and the development of SCC MMOC, which corresponded to the general assumption about the risk of oncology development against the background of chronic infection in the oral cavity. There were identified new data of the relation between the carriers of some types of the viruses of human papillomavirus and the development of SCC MMOC. Particular understanding of the causal relation of presented on-copathology allowed judging the lack of preventive measures, the necessity of required qualification of specialists of dental and related profile.

PATHOHISTOLOGICAL CHANGES IN PIGS WITH MYCOPLASMOSIS

2021 ◽  
Vol 12 (4) ◽  
Author(s):  
N. B. Kolych ◽  
◽  
N. V. Hudz ◽  
Keyword(s):  
Mucous Membrane ◽  
Alveolar Wall ◽  
Soft Or ◽  
Diffuse Infiltration ◽  
Small Areas ◽  
Perivascular Edema ◽  
Mucous Membranes ◽  
The Right ◽  
The Brain ◽  
Dark Pink

A pathological autopsy was performed on 6 corpses of piglets in the first week of life who died from mycoplasmosis. Examination of the visible mucous membranes revealed hyperemia of the mucous membrane of the nasal cavity and thymus. Simultaneous lesions of the pharyngeal, parotid, cervical, mandibular lymph nodes were noted. They were slightly enlarged, from dark pink to dark red. The heart is irregularly shaped due to the expansion of the right ventricle or the diffuse expansion of all departments. Lungs have doughy consistency, uneven color. In some cases, there are diffuse red areas covering the entire lobe of the lungs, in other cases, there is a defeat of small areas. The liver has a smooth surface, soft or pasty consistency, the parenchyma pattern is slightly smoothed in section. The color of the liver is different: dark red areas, without clear boundaries turn into creamy-clay. Flatulence was a characteristic feature of the stomach and intestines. Catarrhal enteritis was registered in animals, which manifested itself in the form of moderate hyperemia of the intestinal mucosa and serous membranes. Microscopically, there is a significant blood supply to the vessels in the lungs. Alveoli are half fall down, in the form of slit-like lumens. In areas of tissue infiltration by inflammatory infiltrate, the alveolar wall is thickened, alveocytes are in a state of turbid swelling and vacuolar dystrophy, they are impregnated with erythrocytes. Peribronchial pneumonia of lymphocytic character is observed. The liver is in a state of acute venous hyperemia. The central and intraparticle capillaries are sharply dilated and filled with blood in some lobes, and the hepatic beams are compressed accordingly. In the center of other lobes, diffuse infiltration of liver tissue by erythrocytes as a consequence of diapedesis is noted. Hepatocytes are in a state of granular dystrophy. Destructive changes are strongly expressed in the mucous membrane of the small intestine: desquamation of the epithelium, necrosis of epitheliocytes and villi, destruction of crypts. In the brain tissue, there is dilation of the lumens of large and small blood vessels, extracellular and perivascular edema, areas of reactive necrosis.

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