Tooth Bleaching
Mostrando 13-24 de 82 artigos, teses e dissertações.
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13. Effectiveness of a new non-hydrogen peroxide bleaching agent after single use - a double-blind placebo-controlled short-term study
Abstract Tooth whitening represents perhaps the most common aesthetic procedure in dentistry worldwide. The efficacy of bleaching depends on three aspects: bleaching agent, bleaching method, and tooth color. Objective: This in vivo study aimed to examine whitening effects on frontal teeth of the upper and lower jaws using an over-the-counter (OTC) non-hydro
J. Appl. Oral Sci.. Publicado em: 2017-10
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14. Impact of Microabrasion on the Effectiveness of Tooth Bleaching
Resumo O objetivo deste estudo foi avaliar o efeito da microabrasão prévia na alteração de cor dos dentes e na efetividade do clareamento dental. Oito molares hígidos foram mesio-distalmente seccionados e as metades foram aleatoriamente alocadas para receberem microabrasão do esmalte ou nenhuma abrasão (controle) em uma das faces (vestibular ou lingua
Braz. Dent. J.. Publicado em: 2017-09
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15. Randomized clinical trial of the effect of NovaMin and CPP-ACPF in combination with dental bleaching
Abstract Objective This randomized, controlled, double-blind clinical study evaluated the effect of calcium sodium phosphosilicate (NovaMin) and casein phosphopeptide-amorphous calcium phosphate with fluoride (CPP-ACPF) on the prevention of post-operative sensitivity and on the effects of clinical bleaching treatment. Material and Methods Sixty volunteer
J. Appl. Oral Sci.. Publicado em: 2017-06
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16. Crown discoloration promoted by materials used in regenerative endodontic procedures and effect of dental bleaching: spectrophotometric analysis
Abstract Regenerative endodontic procedure (REP) has been proposed as a new approach to treat immature permanent teeth. However, materials used in REP for root canal disinfection or cervical sealing may induce tooth discoloration. Objectives To assess tooth crown’s color after intracanal treatment with triple antibiotic paste (TAP) or calcium hydroxide (
J. Appl. Oral Sci.. Publicado em: 2017-04
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17. Controlled clinical trial addressing teeth whitening with hydrogen peroxide in adolescents: a 12-month follow-up
OBJECTIVES: To evaluate the colorimetric change in incisors and canines of adolescents aged 12 to 20 years submitted to at-home whitening and to evaluate satisfaction, sensitivity and discomfort during the procedures through a questionnaire. METHOD: Thirty adolescents were randomly assigned to the following groups: 1) 6.0% hydrogen peroxide (White Class wi
Clinics. Publicado em: 2017-03
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18. Inflammatory response of human dental pulp to at-home and in-office tooth bleaching
ABSTRACT Tooth bleaching is a technique of choice to obtain a harmonious smile, but bleaching agents may damage the dental pulp. Objective: This study evaluated the inflammatory responses of human dental pulp after the use of two bleaching techniques. Material and Methods: Pulp samples were collected from human third molars extracted for orthodontic reason
J. Appl. Oral Sci.. Publicado em: 2016-10
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19. Effects of alpha-tocopherol on fracture resistance after endodontic treatment, bleaching and restoration
Abstract This study evaluated the effects of 10% alphatocopherol on the fracture resistance of endodontically treated teeth subjected to tooth bleaching with hydrogen peroxide and immediately restored with composite resin. Fifty bovine incisors were selected, including 10 sound teeth that constituted the control group (G1 (C)). The remaining 40 teeth, which
Braz. oral res.. Publicado em: 20/05/2016
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20. Evaluation of temperature increase during in-office bleaching
ABSTRACT The use of light sources in the bleaching process reduces the time required and promotes satisfactory results. However, these light sources can cause an increase in the pulp temperature. Objective The purpose of the present study was to measure the increase in intrapulpal temperature induced by different light-activated bleaching procedures with a
J. Appl. Oral Sci.. Publicado em: 2016-04
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21. Evaluation of an experimental rat model for comparative studies of bleaching agents
ABSTRACT Dental materials in general are tested in different animal models prior to the clinical use in humans, except for bleaching agents. Objectives To evaluate an experimental rat model for comparative studies of bleaching agents, by investigating the influence of different concentrations and application times of H2O2 gel in the pulp tissue during in-o
J. Appl. Oral Sci.. Publicado em: 2016-04
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22. Does a toothpaste containing blue covarine have any effect on bleached teeth? An in vitro, randomized and blinded study
Abstract The objective of this study was to analyze the effect of bleaching toothpastes, both conventional and those containing the new whitening agent Blue Covarine, on teeth previously bleached by conventional techniques (in-office and at-home). Squared bovine enamel/dentin blocks (6.0 x 6.0 x 2.0 mm) were randomly distributed in 6 groups (n = 15), accordi
Braz. oral res.. Publicado em: 08/03/2016
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23. Influence of pH, bleaching agents, and acid etching on surface wear of bovine enamel
ABSTRACT Development of new materials for tooth bleaching justifies the need for studies to evaluate the changes in the enamel surface caused by different bleaching protocols. Objective The aim of this study was to evaluate the bovine dental enamel wear in function of different bleaching gel protocols, acid etching and pH variation. Material and Methods
J. Appl. Oral Sci.. Publicado em: 2016-02
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24. Evaluation of an experimental rat model for comparative studies of bleaching agents
ABSTRACT Dental materials, in general, are tested in different animal models prior to their clinical use in humans, except for bleaching agents. Objectives To evaluate an experimental rat model for comparative studies of bleaching agents by investigating the influence of different concentrations and application times of H2O2 gel in the pulp tissue during i
J. Appl. Oral Sci.. Publicado em: 2016-02