Dental Stress Analysis
Mostrando 1-12 de 63 artigos, teses e dissertações.
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1. Academic performance and use of psychoactive drugs among healthcare students at a university in southern Brazil: cross-sectional study
ABSTRACT BACKGROUND: People have been using psychoactive substances for a long time. Over the last few years, this practice has spread among university students, who use these substances to improve their academic performance, relieve stress and increase concentration and memory. OBJECTIVES: To estimate the use of psychoactive drugs among healthcare stude
Sao Paulo Med. J.. Publicado em: 2020-02
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2. Influence of Abutment Collar Height and Implant Length on Stress Distribution in Single Crowns
Resumo Este estudo avaliou a influência da altura da porção transmucosa do pilar protético com junção cone morse e do comprimento dos implantes no comportamento biomecânico coroas unitárias com diferentes proporção coroa-implante. Seis modelos virtuais (S11, M11, L11, S13, M13 e L13) foram construídos combinando pilares protéticos com transmucoso
Braz. Dent. J.. Publicado em: 03/06/2019
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3. Influence of ceramic material, thickness of restoration and cement layer on stress distribution of occlusal veneers
Abstract The aim of this study was to evaluate stress distribution in an occlusal veneer according to the restorative material, restoration thickness, and cement layer thickness. A tridimensional model of a human maxillary first molar with an occlusal veneer preparation was constructed using a modeling software of finite element analysis. The model was repli
Braz. oral res.. Publicado em: 29/11/2018
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4. Effect of the Cooling Rate on the Properties of Veneer Porcelain for Zirconia Dental Prosthesis
To solve chipping of veneer porcelain in zirconia dental prosthesis it has been studied different cooling rates in firing schedules to control residual stresses generated by differences in thermal properties between the ceramics. However, cooling rates may affect the porcelain, irrespectively of interaction with zirconia. This study analyzed the effect of co
Mat. Res.. Publicado em: 07/08/2017
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5. Liver proteome of mice with different genetic susceptibilities to the effects of fluoride
ABSTRACT A/J and 129P3/J mice strains have been widely studied over the last few years because they respond quite differently to fluoride (F) exposure. 129P3/J mice are remarkably resistant to the development of dental fluorosis, despite excreting less F in urine and having higher circulating F levels. These two strains also present different characteristics
J. Appl. Oral Sci.. Publicado em: 2016-06
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6. Optimizing light-cured composite through variations in camphorquinone and butylhydroxytoluene concentrations
Abstract The use of a free-radical polymerization inhibitor, butylhydroxytoluene (BHT), and a common photo-initiator, camphorquinone (CQ), to reduce polymerization stress in dental composite was investigated in this study. Samples were prepared by mixing Bis-GMA, UDMA, and TEGDMA at a 1:1:1 ratio (wt%), and silanized borosilicate glass fillers at 70 wt% were
Braz. oral res.. Publicado em: 20/05/2016
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7. Non-linear indices of heart rate variability during endodontic treatment
Abstract Dental treatment promotes psychosomatic change that can influence the procedure and compromise the general well-being of the patient. In this context, it highlights the importance of evaluating the function of the autonomic nervous system in individuals undergoing endodontic treatment. Thus, this manuscript aimed to analyse cardiac autonomic modulat
Braz. oral res.. Publicado em: 23/02/2016
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8. Investigation of the influence of design details on short implant biomechanics using colorimetric photoelastic analysis: a pilot study
Introduction : The clinical survival of a dental implant is directly related to its biomechanical behavior. Since short implants present lower bone/implant contact area, their design may be more critical to stress distribution to surrounding tissues. Photoelastic analysis is a biomechanical method that uses either simple qualitative results or complex calcul
Res. Biomed. Eng.. Publicado em: 27/11/2015
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9. Stress Generated by Customized Glass Fiber Posts and Other Types by Photoelastic Analysis
Pinos endodônticos são necessários para promover retenção e suporte adequados quando a estrutura dental remanescente não é suficiente para reter o núcleo. Há diferentes materiais e técnicas para construir o núcleo, mas não há consenso sobre o qual promove a melhor distribuição de tensão na estrutura dental remanescente. O objetivo deste traba
Braz. Dent. J.. Publicado em: 2015-06
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10. Numerical study of effect of elastomeric stress absorbers on stress reduction in bone-dental implant interface
Objective This paper focused on optimal stress distribution in the mandibular bone surrounding a dental implant and is devoted to the development of a modified Osteoplant® implant type in order to minimize stress concentration in the bone-implant interface. Material and Methods This study investigated 0.4 mm thick layers of two elastomeric stress barriers
J. Appl. Oral Sci.. Publicado em: 2015-02
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11. Biomechanical evaluation of subcrestal dental implants with different bone anchorages
This study evaluated the biomechanical influence of apical bone anchorage on a single subcrestal dental implant using three-dimensional finite element analysis (FEA). Four different bone anchorage designs were simulated on a posterior maxillary segment using one implant with platform switching and internal Morse taper connection as follows: 2 mm subcrestal p
Braz. oral res.. Publicado em: 04/08/2014
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12. Avaliação da deflexão elástica de fios ortodônticos de níquel-titânio, calibre 0,014 / Load-deflection study of caliber 0.014 nickel-titanium orthodontic wires
OBJECTIVE: The purpose of this study was to present the magnitude and the constancy of the forces released by nickel-titanium orthodontic wires, used to treat dental crowding. Another purpose was to compare the most usual types of bending tests used to evaluate these wires: 3-point test and clinical simulation device. MATERIAL AND METHODS: Eleven groups of o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/07/2012