Tooth Crown
Mostrando 13-24 de 59 artigos, teses e dissertações.
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13. AVALIAÇÃO DAS DIFERENTES TÉCNICAS DE CLAREAMENTO DENTAL DE CONSULTÓRIO: EFETIVIDADE, SENSIBILIDADE PÓS-TRATAMENTO E EFEITOS SOBRE O COMPLEXO DENTINO-PULPAR / Assessment of different in-office tooth bleaching techniques: Effectiveness, sensitivity post-treatment and effects on the pulp-dentin complex
The use of bleaching gels with low hydrogen peroxide (HP) concentration, as well as the reduction of application times or its association with calcium-containing agents may be clinical approaches to reduce the amount of HP that reaches the pulp tissue to cause local damage. However, only a few data have been published about the pulp response of human teeth s
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/12/2012
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14. Crown dilaceration in permanent teeth after trauma to the primary predecessors: report of three cases
Crown dilaceration of permanent teeth occurs due to the non-axial displacement of the already formed hard tissue portion of the developing crown at an angle to their longitudinal axis due to trauma to the primary predecessors. This is a rare condition, representing only 3% of the total of injuries to developing teeth and usually occurs in permanent maxillary
Braz. Dent. J.. Publicado em: 2012-10
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15. Inflammatory root resorption in primary molars: prevalence and associated factors
This study aimed at determining the prevalence of inflammatory root resorption and associated factors in 1068 primary mandibular molars in 453 children 3 to 12 years of age. Age, dental history and medical history were recorded using a questionnaire administered to the children's parents/caregivers. Previously trained and calibrated examiners assessed radiog
Brazilian Oral Research. Publicado em: 2012-08
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16. Internal fit of two all-ceramic systems and metal-ceramic crowns
OBJECTIVES: The aim of this study was to investigate the internal fit (IF) of glass-infiltrated alumina (ICA - In-Ceram Alumina), yttria-stabilized tetragonal zirconia polycrystals (Y-TZP - IPS e.max ZirCAD), and metal-ceramic (MC - Ni-Cr alloy) crowns. MATERIAL AND METHODS: Sixty standardized resin-tooth replicas of a maxillary first molar were produced for
Journal of Applied Oral Science. Publicado em: 2012-04
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17. Stress prediction in a central incisor with intra-radicular restorations
A 2D finite element analysis was applied to calculate shear and von Mises equivalent stresses developed, under masticatory loading, in an upper central incisor restored with cast gold post and carbon fiber reinforced epoxy resin post. Based on the predicted shear stress levels, it is concluded that the gold post model is more prone to shear failure along the
Materials Research. Publicado em: 29/04/2011
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18. A 3-year follow-up study of all-ceramic single and multiple crowns performed in a private practice: a prospective case series
OBJECTIVES: Zirconia-based prostheses are commonly used for aesthetic crown and fixed restorations, although follow-up data are limited, especially for implant-supported crowns. The aim of this study was to evaluate the threeyear clinical results of the installation of 463 zirconia core crowns by a general dental private practice. METHODS: This study followe
Clinics. Publicado em: 2011
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19. Resistência de união de materiais resinosos de baixa viscosidade em lesões incipientes de cárie em esmalte / Bond strength of experimental low viscosity resin materials in initial enamel caries
Infiltration of enamel-like initial caries lesions with low viscosity resins (infiltrants) seems to be a promising approach in dentistry and it have showed advantages regarding to remineralization or invasive treatments. In this way, material must penetrate and seal lesions intake, reinforcing carious structure and eventually avoiding lesion progression, wit
Publicado em: 2011
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20. Mesiodistal width and proximal enamel thickness of maxillary first bicuspids
This study aimed at evaluating measurements relative to the mesiodistal crown width and enamel thickness of maxillary first bicuspids. The sample consisted of 40 extracted sound bicuspids (20 right and 20 left), selected from white patients (mean age: 23.7 ± 4.2 years), who were treated orthodontically with tooth extraction at a private clinic in São Paulo
Brazilian Oral Research. Publicado em: 2010-03
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21. Efeito da clorexidina e flúor na resistência coesiva da estrutura dental irradiada e não irradiada
Radiation therapy significantly reduces the resistance of the tooth structure and the damage is potentially higher in the organic matrix. The use of products that promote the stabilization of collagen and / or agents to intensify the cross-links may provide less damage to the resistance of teeth irradiated. This study aimed analyze the effect of the use of c
Publicado em: 2010
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22. Comparative study of the compressive strength between aluminized porcelain crown infiltrated for glass and crown of feldspática porcelain and hígido permanent natural tooth / Estudo comparativo da resistência à compressão entre coroa de porcelana aluminizada infiltrada por vidro, coroa de porcelana feldspática e dentes permanentes hígidos
Este estudo objetivou avaliar a resistência máxima às forças de compressão entre dois grupos diferentes de coroas em porcelanas livres de metal cimentadas sobre dentes naturais e um grupo formado por dentes caninos naturais hígidos e comparar os resultados obtidos com os de (Chaves, 2001), em seu trabalho de Doutorado onde também se avaliou a resistê
Publicado em: 2010
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23. A retrospective clinical, radiographic and microbiological study of periodontal conditions of teeth with and without crowns = Um estudo retrospectivo clínico, radiográfico e microbiológico das condições periodontais de dentes com e sem coroas / Um estudo retrospectivo clínico, radiográfico e microbiológico das condições periodontais de dentes com e sem coroas
O objetivo deste estudo foi avaliar retrospectivamente as condições periodontais de pacientes com coroas fixas colocadas de 3 a 5 anos antes da realização da pesquisa. Quarenta indivíduos foram rechamados. Exames clínicos de toda a boca foram realizados avaliando-se Índice de Placa Visível (IPV), Índice de Sangramento Gengival (ISG), Profundidade de
Publicado em: 2010
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24. Ex vivo analysis of apical human tooth in 3D sections using computed micro-CT / Análise ex vivo de cortes apicais de dentes humanos em 3D empregando microtomografia computadorizada
This ex vivo study aimed to investigate the apical anatomy of vital and necrotic human roots by microcomputed tomography (micro-CT). Thirty-five single or multirooted human teeth that had their roots separated totaling forty-one roots were carefully pre-selected and divided into two groups: vital pulp (VP) n = 21 and necrotic pulp (NP) n = 20. Both groups we
Publicado em: 2010