Human And Bovine Dental Enamel
Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. Analysis of the antimicrobial and anti-caries effects of TiF4 varnish under microcosm biofilm formed on enamel
Abstract Titanium tetrafluoride (TiF4) is known for interacting with enamel reducing demineralization. However, no information is available about its potential antimicrobial effect. Objectives This study evaluated the antimicrobial and anti-caries potential of TiF4 varnish compared to NaF varnish, chlorhexidine gel (positive control), placebo varnish and un
J. Appl. Oral Sci.. Publicado em: 22/02/2018
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2. Avaliação do efeito preventivo do verniz contendo glicerofosfato de cálcio frente a desafios cariogênicos e erosivos / Preventive effect of a varnish containing calcium glycerophosphate after cariogenic and erosive challenges
This study was carried out in four experiments, which aimed at: (1) assess the amount of fluoride (F-) released by the varnishes; (2) assess the amount of loosely and firmly bound F- to dental enamel after the use of varnishes; assess the ability of the varnishes to prevent (3) enamel demineralization from caries and (4) the progression of demineralization f
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/04/2011
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3. Radiodensity evaluation of dental impression materials in comparison to tooth structures
In the most recent decades, several developments have been made on impression materials' composition, but there are very few radiodensity studies in the literature. It is expected that an acceptable degree of radiodensity would enable the detection of small fragments left inside gingival sulcus or root canals. OBJECTIVE: The aim of this study was to determin
Journal of Applied Oral Science. Publicado em: 2010-10
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4. Viability of using enamel and dentin from bovine origin as a substitute for human counterparts in an intraoral erosion model
Este estudo visou avaliar, sob um modelo de erosão dental que se aproxima da realidade clínica, se o esmalte e a dentina radicular bovinos seriam substitutos viáveis aos correspondentes substratos de origem humana. De acordo com um delineamento crossover 2x2, 14 voluntários utilizaram dispositivos palatinos contendo fragmentos de esmalte humano e bovino.
Brazilian Dental Journal. Publicado em: 2010
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5. Progressão da lesão de cárie no esmalte dental após aplicação de compostos fluoretados e irradiação com laser de CO2 / Progression of caries-like lesions following CO2 laser irradiation or fluoride sources in human and bovine enamel.
A presente tese foi dividida em 2 estudos cujos objetivos específicos foram: 1) Comparar in vitro o efeito da irradiação do laser de CO2 a compostos fluoretados na inibição da progressão de lesões de cárie, e testar se o padrão de resposta é similar ao esmalte humano e bovino. 2) Avaliar in situ a progressão da lesão de cárie no esmalte bovino e
Publicado em: 2009
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6. Comparative analysis of human and bovine teeth: radiographic density
Since bovine teeth have been used as substitutes for human teeth in in vitro dental studies, the aim of this study was to compare the radiographic density of bovine teeth with that of human teeth to evaluate their usability for radiographic studies. Thirty bovine and twenty human teeth were cut transversally in 1 millimeter-thick slices. The slices were X-ra
Brazilian Oral Research. Publicado em: 2008-12
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7. Determination of internal bovine dental bleaching with different bleaching agents / Determinação do grau de clareamento interno de dentes bovinos submetidos a diferentes agentes clareadores.
The purpose of this study was to evaluate the bleaching effect of 37% carbamide peroxide, sodium perborate mixed with distilled water and sodium perborate mixed with 35 hydrogen peroxide on artificially stained pulpless teeth. Eighteen bovine teeth were sectioned 3mm apical of the cement-enamel junction and were divided into eight groups. Four groups was dir
Publicado em: 2008
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8. Propriedades mecanicas e radiodensidade de esmalte, de dentina e de diferentes materiais odontologicos / Mechanical properties and radiodensity of enamel and dentin, and different dental materials
Dental materials development has stimulated the study of their physical and mechanical properties and the substitution of human teeth in dental researches makes necessary the analysis of physical, microstructural and mechanical properties of bovine teeth, varying the age of animals and comparing the results with those from human teeth. In order to fulfill al
Publicado em: 2007
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9. Influence of different formulations of bleaching agents on enamel and dentin physical and chemical properties / Influencia de diferentes formulações de agentes clareadores nas propriedades fisicas e quimicas do esmalte e dentina
Section A: Effects of bleaching agents on dental enamel Since the introduction of the nightguard vital bleaching technique using 10% carbamide peroxide (10% CP), reports have evaluated the effects of bleaching agents on human enamel. Evidences show that CP is able to alter the composition and morphology of enamel substrate. In order to reduce the adverse eff
Publicado em: 2007
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10. Avaliação in vitro e in situ do efeito dos íons ferro na erosão da superfície dentária bovina e humana / In vitro and in situ evaluation of the effect of iron ions on the erosion of bovine and human dental surface
O objetivo geral deste estudo foi avaliar o efeito do íon ferro na inibição da erosão de dentes bovino e humano provocada por bebidas ácidas, em estudos in vitro e in situ. O estudo foi realizado em três etapas. No 1° subprojeto, foi avaliado, in vitro, o efeito de concentrações crescentes de ferro na dissolução do pó de esmalte bovino, quando ad
Publicado em: 2007
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11. Avaliação da resistencia de união de sistemas adesivos e cimentos resinosos a dentina e aos compositos restauradores / Evaluation of bond strength of adhesive systems and resincements to dentin and restorative composites
The current concept of bonding to hard dental tissues is based on the infiltration of adhesive systems in enamel and dentin, in the so-called hybridization process. While the enamel bond has been considered a reliable procedure due to its uniform composition, bonding to dentin continues to present challenges. The objective of this study was to assess and dis
Publicado em: 2006
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12. Estudo in vitro da microabrasão de resinas compostas, amálgama, esmalte dentário humano e bovino
O objetivo deste estudo foi avaliar a resistência a microabrasão de resinas compostas, amálgama, esmalte dentário humano e bovino. Foi utilizado um microabrasômetro (Calowear Tester) cuja principal característica é avaliar o desgaste superficial dos materiais. Sendo o desgaste abrasivo um processo de riscamento múltiplo, a resistência ao desgaste po
Publicado em: 2006