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1.
Stomatologiia (Mosk) ; 103(1): 8-11, 2024.
Artigo em Russo | MEDLINE | ID: mdl-38372600

RESUMO

OBJECTIVE: The physical and mechanical properties of samples printed from different materials subjected to post-processing in a clinic were evaluated. MATERIAL AND METHODS: Studied hardness and modulus of elasticity before and after sterilization by autoclaving. Based on the analysis of the literature and monitoring of the dental materials market, our choice fell on the most popular materials for 3D printing of surgical templates for dental implantation, such as: material 1 (FormLabs Dental SG Resin (Formlabs, USA)) and material 2 (NextDent SG (NextDent, Netherlands)). In connection with the events of recent years, we also took into the study a domestically produced polymer - material 3 (HARZLabs Yellow Clear PRO (HARZLabs, Russia)). RESULTS: As a result of the study, it was found that in each of the groups of materials studied, the values of the elastic modulus of sterilized samples are higher than the elastic modulus of samples that have not undergone sterilization. According to GOST 31572-2012 (ISO 1567:1999 Polymeric materials for denture bases, non-sterilized samples of group 2 are considered not to have passed the test, since all three samples of the studied group have a crack resistance index of less than 1 MN/m1.5. Crack resistance index of sterilized samples of the group of materials 2 is also close to 1. Samples of group 1 (both sterilized and non-sterilized) have the highest crack resistance. This group also has the highest flexural strength. On non-sterilized samples of material 1, there was no crack initiation along the cut and groove. The samples of other groups were mainly destroyed along the axis of the groove. CONCLUSION: Analyzing the obtained data and considering that all studies carried out were in accordance with dental standards, the researchers concluded that the increase in flexural strength after sterilization by autoclaving and the feasibility of using material 1 for the production of surgical templates in accordance with all manufacturer's recommendations.


Assuntos
Materiais Dentários , Impressão Tridimensional , Humanos , Teste de Materiais , Elasticidade , Polímeros , Computadores , Propriedades de Superfície
5.
Vestn Ross Akad Med Nauk ; (12): 49-52, 2000.
Artigo em Russo | MEDLINE | ID: mdl-11202645

RESUMO

With the assistance and direct participation of the Presidium of the Russian Academy of Medical Sciences, the I. M. Sechenov Moscow Medical Academy has developed and introduced an unique elitist educational system to train of scientific and pedagogical staff at the pre- and postdiploma training stages on the basis of their close relationships and continuity, within whose framework a specially designed faculty has been successfully operating for 10 years. The basic principle that ensures its effective activity and solution of many didactic problems is the individualization and differentiation of an educational process by using a great diversity of reserves and organizational forms. The created system is unique in Russian and foreign practice. It improves the quality of scientific and pedagogical staff training, promotes more effective creation of staff reserves for the departments of higher educational establishments and research institutes of the Russian Academy of Medical Sciences and the Ministry of Health of the Russian Federation.


Assuntos
Academias e Institutos/história , Educação Médica Continuada/história , Educação Médica Continuada/normas , História do Século XX , Moscou
6.
Khirurgiia (Mosk) ; (10): 4-8, 1999.
Artigo em Russo | MEDLINE | ID: mdl-10540544

RESUMO

The problems of terminology are discussed, as well as classification and definition of sepsis. Comparative analysis of traditional for our country and up-to-date foreign classifications is carried out. The criteria for diagnosis of sepsis are discussed. On the basis of 20-year experience in examination and treatment of patients with sepsis, the authors set forth their own stand, suggesting two varieties of sepsis for consideration: common complication of surgical infection, a rare disease.


Assuntos
Sepse , Infecção da Ferida Cirúrgica , Terminologia como Assunto , Humanos , Federação Russa , Sepse/classificação , Sepse/etiologia , Infecção da Ferida Cirúrgica/complicações
10.
Arkh Patol ; 60(1): 14-8, 1998.
Artigo em Russo | MEDLINE | ID: mdl-9582982

RESUMO

Recognition of general pathology as an independent discipline is urgent at this stage of medical science development. Its contents are basic rules of the origin, development and outcomes of human diseases. It is desirable to organize in the medical schools chairs (courses) of general pathology as an supradiscipline subject the knowledge of which is necessary to the wide circle of students, interns, physicians of all specialties.


Assuntos
Patologia/educação , Adaptação Fisiológica , Doença/classificação , Doença/etiologia , Humanos , Resultado do Tratamento
13.
Arkh Patol ; 58(4): 8-15, 1996.
Artigo em Russo | MEDLINE | ID: mdl-8967873

RESUMO

A classification of thymomas is proposed based on rich authors' material. The classification allows one to reveal correlations between the malignancy grade, clinical manifestations and postoperative prognosis.


Assuntos
Carcinoma/classificação , Timoma/classificação , Neoplasias do Timo/classificação , Carcinoma/patologia , Carcinoma/cirurgia , Diferenciação Celular/fisiologia , Diagnóstico Diferencial , Humanos , Período Pós-Operatório , Prognóstico , Timoma/patologia , Timoma/cirurgia , Neoplasias do Timo/patologia , Neoplasias do Timo/cirurgia
14.
Arkh Patol ; 58(3): 3-6, 1996.
Artigo em Russo | MEDLINE | ID: mdl-8967838

RESUMO

The author holds that the achievements of molecular biology and pathology should not contradict conventional concepts about the body as a whole system in which all particular processes are controlled by the regulatory systems at various levels of organization. Only such an approach may ensure a fruitful development of general pathology as a theoretical basis of medicine. Teaching general pathology as an independent discipline in the system of medical education is proposed.


Assuntos
Patologia/tendências , Autopsia , Humanos , Biologia Molecular , Patologia/educação
18.
Arkh Patol ; 56(6): 28-32, 1994.
Artigo em Russo | MEDLINE | ID: mdl-7605214

RESUMO

Certain biological and biochemical differences are found after biochemical and electron-microscopic examinations between different substrains of staphylococcus and Pseudomonas aeruginosa. The conclusion is made that in the development, course and form of septic process the important role is played not only by the type of infectious agent, but by its various substrains as well.


Assuntos
Infecções por Pseudomonas/metabolismo , Sepse/microbiologia , Infecções Estafilocócicas/metabolismo , Animais , Quimiotaxia de Leucócito , Citotoxicidade Imunológica , Neutrófilos/imunologia , Infecções por Pseudomonas/enzimologia , Ratos , Sepse/enzimologia , Sepse/metabolismo , Especificidade da Espécie , Infecções Estafilocócicas/enzimologia
19.
Khirurgiia (Mosk) ; (10): 36-9, 1994 Oct.
Artigo em Russo | MEDLINE | ID: mdl-7723265

RESUMO

Combination of severe purulent processes (peritonitis, phlegmons, and extensive wounds of the abdominal wall), eventration, and complete high unformed intestinal fistulas leads to rapid hemostasis disorders and emaciation. In nonoperative treatment lethality reaches 70%. Complete bilateral disconnection of the fistula bearing intestinal loop is the operation of choice in such situations. In this case the length of the disconnected intestinal segments may be two thirds of the length of the jejunum and the greater part of the colon. The results of morphofunctional study of an intestinal segment disconnected for a long period are analysed. The tactics of active surgical treatment is illustrated by clinical cases.


Assuntos
Doenças do Íleo/cirurgia , Fístula Intestinal/cirurgia , Doenças do Jejuno/cirurgia , Complicações Pós-Operatórias/cirurgia , Adulto , Humanos , Doenças do Íleo/patologia , Doenças do Íleo/fisiopatologia , Fístula Intestinal/patologia , Fístula Intestinal/fisiopatologia , Doenças do Jejuno/patologia , Doenças do Jejuno/fisiopatologia , Masculino , Complicações Pós-Operatórias/patologia , Complicações Pós-Operatórias/fisiopatologia , Reoperação , Procedimentos Cirúrgicos Operatórios/métodos
20.
Arkh Patol ; 56(5): 4-7, 1994.
Artigo em Russo | MEDLINE | ID: mdl-7695493

RESUMO

The stability of the inner milieu of the body despite changing conditions of life is brought about by a complex of several standard reactions displaying at different levels of organization, from a molecular one to that of organs and systems. These reactions ensure retaining homeostasis in spite of the action of pathogenic factors and are the material basis of what is understood under the "reliability of biological systems".


Assuntos
Homeostase , Teoria de Sistemas , Adaptação Fisiológica , Animais , Humanos , Hiperplasia , Filosofia , Regeneração
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