Dentin Permeability
Mostrando 1-12 de 41 artigos, teses e dissertações.
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1. Do Irrigation Solutions Influence the Bond Interface Between Glass Fiber Posts and Dentin?
Resumo O objetivo deste trabalho foi avaliar a resistência de união e permeabilidade da interface de pinos de fibra de vidro nos diferentes terços da dentina intrarradicular (cervical, médio e apical) submetidos a diferentes agentes irrigantes. Noventa dentes unirradiculares humanos foram submetidos ao tratamento endodôntico e foram divididos em cinco g
Braz. Dent. J.. Publicado em: 04/04/2019
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2. Effect of two desensitizing agents on dentin permeability in vitro
Abstract Objective The aim of this in vitro study was to investigate the effect of two desensitizing agents and water on hydraulic conductance in human dentin. Material and Methods GLUMA Desensitizer PowerGel (GLU) contains glutaraldehyde (GA) and 2-hydroxyethyl methacrylate (HEMA), and Teethmate Desensitizer (TD) is a powder comprising tetracalcium phos
J. Appl. Oral Sci.. Publicado em: 2017-02
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3. Effects of different desensitizing treatments on root dentin permeability
Abstract The objective of this study was to evaluate the effects of diode laser and a desensitizing dentifrice on dentin permeability. Fifty-two root dentin fragments were obtained (5 × 5mm) and treated with 24% EDTA gel. The samples were divided into 4 groups (n = 13): G1, control (no treatment); G2, diode laser (λ = 908 nm, 1.5 W, continuous mode, 20s);
Braz. oral res.. Publicado em: 10/10/2016
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4. Effect of bleaching agents containing fluoride or calcium on enamel microhardness, roughness and permeability
Abstract Aim: To evaluate the effect of different in-office bleaching agents on the permeability, roughness and surface microhardness of human enamel. Methods: For evaluation of roughness and microhardness, 40 hemi-faces of 20 premolars were subjected to initial roughness (Ra parameter) and microhardness (VHN) measurements. Thirty-two premolar's crowns w
Braz. J. Oral Sci.. Publicado em: 2015-12
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5. Effect of Fluoride Varnish Combined with Er:YAG Laser on the Permeability of Eroded Dentin: An In Situ Study
Resumo Esse estudo avaliou o feito combinado do verniz fluoretado ao laser de Er:YAG na permeabilidade da dentina radicular erodida. Fragmentos de dentina radicular bovina, foram submetidos a um desafio erosivo inicial com ácido cítrico, que foi seguido por um período de remineralização. Posteriormente, os espécimes foram divididos em relação aos tra
Braz. Dent. J.. Publicado em: 2015-12
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6. Bond strength to root dentin and fluid filtration test of AH Plus/gutta-percha, EndoREZ and RealSeal systems
OBJECTIVES: To investigate the bond strength and seal ability produced by AH Plus/gutta-percha, EndoREZ and RealSeal systems to root canal dentin. MATERIAL AND METHODS: Sixty extracted single-root human teeth, instrumented manually to size 40, were divided into three groups (n=20) according to the sealer used; G1: AH Plus, G2: EndoREZ, and G3: RealSeal
J. Appl. Oral Sci.. Publicado em: 2013-07
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7. Evaluation of human enamel permeability exposed to bleaching agents
AIM: To evaluate the human enamel permeability after different external bleaching techniques. METHODS: The coronal portions of 20 maxillary human incisors were covered with an acid resistant varnish, except the labial surface, to prevent dye penetration of silver nitrate. The specimens were divided randomly into four groups (n=5) according to the bleaching t
Braz. J. Oral Sci.. Publicado em: 2013-06
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8. Chemical treatment of the intra-canal dentin surface: a new approach to modify dentin hydrophobicity
Objective This study evaluated the hydrophobicity of dentin surfaces that were modified through chemical silanization with octadecyltrichlorosilane (OTS). Material and Methods An in vitro experimental study was performed using 40 human permanent incisors that were divided into the following two groups: non-silanized and silanized. The specimens were pretre
J. Appl. Oral Sci.. Publicado em: 2013-02
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9. Efeito in situ de dentifrícios associado ao laser CO2 na permeabilidade da dentina radicular erodida / In situ effect of dentifrices associated to CO2 laser in the permeability of eroded root dentine
Diante do aumento de lesões de erosão e a necessidade de métodos que controlem a sintomatologia dolorosa a elas relacionada, o objetivo deste estudo foi avaliar, através de um modelo in situ, crossover 2 x 2, o efeito de um dentifrício dessensibilizante associado ao laser de CO2 em controlar a permeabilidade da dentina radicular erodida. Oitenta fragmen
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/01/2012
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10. Effect of desensitizing toothpastes on dentin
The objective of this study was to analyze the effects of toothbrushing with desensitizing toothpastes on dentin permeability and dentinal tubule occlusion. Fifty rats provided two hundred incisor teeth divided into five groups: DW, brushed with distilled water (control); FT, brushed with fluoride toothpaste; SCT, brushed with strontium chloride toothpaste;
Braz. oral res.. Publicado em: 2012-10
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11. Effect of adhesive system and application strategy on reduction of dentin permeability
This study evaluated the effect of adhesive systems and application strategies on dentin hydraulic conductance (HC). The buccal enamel was removed from bovine incisors to simulate laminate cavity preparations. After removing the roots and the coronal pulp, the buccal dentin was treated with EDTA solution (0.5 M) for 5 minutes, rinsed, ultrasonicated for 12 m
Braz. oral res.. Publicado em: 14/08/2012
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12. Effect of acid fruit juices combined with electric or sonic toothbrushing on root dentin permeability: an in vitro study
O objetivo deste trabalho in vitro foi quantificar as alterações na permebilidade da dentina radicular humana após exposição a diferentes sucos de frutas ácidas e avaliar o efeito da escovação, com escova elétrica ou sônica, após a exposição ácida. A dentina radicular de 50 terceiros molares foi exposta com a utilização de fresas em alta rota
Braz. Dent. J.. Publicado em: 2012