Demineralization Remineralization
Mostrando 13-24 de 44 artigos, teses e dissertações.
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13. Evaluation of fluoride release from experimental TiF4 and NaF varnishes in vitro
Fluoride varnishes play an important role in the prevention of dental caries, promoting the inhibition of demineralization and the increase of remineralization. Objective: This study aimed to analyze the amount of fluoride released into water and artificial saliva from experimental TiF4 and NaF varnishes, with different concentrations, for 12 h. Materia
J. Appl. Oral Sci.. Publicado em: 2014-04
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14. Effect of chlorhexidine on the bond strength of a self-etch adhesive system to sound and demineralized dentin
This study evaluated the effect of a 2% chlorhexidine-based disinfectant (CHX) on the short-term resin-dentin bond strength of a self-etch adhesive system to human dentin with different mineral contents. Dentinal mineralization was tested at 4 levels (sound, and after 2, 4, or 8 days of demineralization-remineralization cycles) and disinfectant at 2 levels [
Braz. oral res.. Publicado em: 09/04/2013
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15. Influence of photo-activation source on enamel demineralization around restorative materials
This study evaluated the effects of the photoactivation source and restorative material on the development of caries-like lesions on human enamel after an in vitro pH challenge. Enamel cavities were prepared in 36 blocks, which were assigned to two groups according to the restorative material: resin-modified glass ionomer (RMGI) and composite resin (CR). Sam
Braz. oral res.. Publicado em: 01/03/2013
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16. Influence of fluoride-containing adhesives and bleaching agents on enamel bond strength
This study evaluated the influence of fluoride-containing carbamide peroxide (CP) bleaching agents and adhesive systems on bonded enamel interfaces that are part of the dynamic pH cycling and thermal cycling models. The buccal surfaces of 60 bovine incisors were restored with a composite resin and bonded with three- and two-step, etch-and-rinse, fluoride-con
Braz. oral res.. Publicado em: 2012-12
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17. Calcium glycerophosphate supplemented to soft drinks reduces bovine enamel erosion
OBJECTIVE: This in vitro study evaluated the effect of calcium glycerophosphate (CaGP) supplemented to soft drinks on bovine enamel erosion. MATERIAL AND METHODS: Four pH-cycles were performed, alternating demineralization by the beverage and remineralization in artificial saliva. RESULTS: Mean wear (±SD, µm) was 7.91±1.13, 7.39±1.01, 7.50±0.91 and 5.21
J. Appl. Oral Sci.. Publicado em: 2012-08
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18. Análise da progressão e da reversão de lesões artificiais de cárie através de espectroscopia Raman e tomografia de coerência óptica
Existem vários protocolos para o desenvolvimento de lesões artificiais de cárie, no entanto, modelos de ciclagem de pH, envolvendo a exposição de substratos dentários à combinação de desmineralização e remineralização são os mais utilizados, por mimetizar melhor a dinâmica de perda e ganho de minerais. As metodologias empregadas para analisar
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/12/2011
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19. Avaliação do desgaste e da alteração da rugosidade superficial em resinas compostas de diferentes características submetidas à escovação simulada e ciclagem de pH / Wear and surface roughness alteration evaluation of different composite resins after toothbrushing and pH cycling
The present study aimed to quantitatively evaluate the surface roughness alteration and wear of resin composites with different characteristics of organic matrix and inorganic filler when submitted to simulated toothbrushing abrasion and pH cycling. Three different resin composites were evaluated: Filtek Z250 (Bis-GMA, microhybrid), Filtek Z350 (Bis-GMA, nan
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/08/2011
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20. Avaliação do potencial erosivo do suco de laranja modificado pela adição de caseína e ovalbumina / Evaluation of the erosive potential of an orange juice modified by the addition of casein and ovalbumin [dissertation
The erosive potential of a modified orange juice by addition of casein, ovalbumin and its combination, on human enamel and root dentin was evaluated in this in vitro study. Two dietary proteins, 0.2 g/l casein (CAS), 2.0 g/l ovalbumin (OVA) and their combination (CAS + OVA) were added to a commercially available orange juice. The juice with no additives was
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/06/2011
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21. Comparação do efeito de TiF4 e NaF, nas formas de verniz e solução, sobre a desmineralização e remineralização do esmalte dentário bovino in situ / Comparison between the effect of TiF4 and NaF varnishes and solutions on bovine enamel demineralization and remineralization in situ
Este estudo teve como objetivo avaliar do efeito da aplicação tópica de um verniz e solução experimental de TiF4, comparando-os ao verniz e solução de NaF, sobre o processo de des-remineralização do esmalte dentário in situ. Para tal, 132 blocos de esmalte bovino (4x4mm) foram selecionados pela microdureza de superfície, sendo que em metade deles
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/05/2011
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22. Potencial remineralizador de dentifrícios com compostos bioativos no esmalte dental submetido a desafios erosivos de diferentes severidades / Remineralizing potential of toothpastes with different bioactive compounds on different enamel erosion severities
Frente ao aumento da prevalência da erosão dental e das dificuldades de controle de seus possíveis fatores etiológicos (químicos, biológicos e comportamentais) é de fundamental importância o estabelecimento de medidas no sentido de diminuir o progresso ou evitar a instalação da erosão dental ou ainda reverter lesões de erosão já estabelecidas.
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/02/2011
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23. Timing of fluoride toothpaste use and enamel-dentin demineralization
It is well established that fluoride (F) prevents caries development by inhibiting demineralization and enhancing remineralization processes. However, it is not known which of these protective mechanisms is more important. In this double-blind, crossover in situ study conducted in three phases of 14 days each, 12 volunteers wore palatal appliances containing
Brazilian Oral Research. Publicado em: 2011-10
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24. pH-cycling models for in vitro evaluation of the efficacy of fluoridated dentifrices for caries control: strengths and limitations
Despite a plethora of in situ studies and clinical trials evaluating the efficacy of fluoridated dentifrices on caries control, in vitro pH cycling models are still broadly used because they mimic the dynamics of mineral loss and gain involved in caries formation. This paper critically reviews the current literature on existing pH-cycling models for the in v
Journal of Applied Oral Science. Publicado em: 2010-08