Bleaching Teeth
Mostrando 1-12 de 60 artigos, teses e dissertações.
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1. Effect of Prior Application of Desensitizing Agent on the Teeth Submitted to In-Office Bleaching
Resumo Este estudo teve como objetivo quantificar a permeabilidade do peróxido de hidrogênio (PH), avaliação da mudança de cor, morfologia da superfície e composição de elementos após a aplicação de agentes dessensibilizantes antes do clareamento em consultório. Cinquenta pré-molares foram seccionados, um tampão de acetato foi colocado na câma
Braz. Dent. J.. Publicado em: 2020-06
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2. Extreme root resorption in orthodontic practice: teeth do not have to be replaced with implants
RESUMO A troca de dentes naturais com reabsorções inflamatórias externas apicais extremas, induzidas ortodonticamente, por implantes osseointegráveis não se justifica, biológica ou clinicamente. Esses dentes devem ser mantidos, cumprindo suas funções normais, pois não apresentam aumento de mobilidade, nem dor ou alteração de cor, podendo ser subme
Dental Press J. Orthod.. Publicado em: 11/11/2019
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3. Effect of dental bleaching on pulp oxygen saturation in maxillary central incisors - a randomized clinical trial
Abstract Objective To assess pulp oxygen saturation levels (SaO2) in maxillary central incisors after dental bleaching. Materials and Methods 80 participants (160 teeth) were randomly allocated to four groups: G1 In-office bleaching with two applications of 35% hydrogen peroxide (HP) (20 minutes), followed by at-home bleaching with 10% carbamide peroxide
J. Appl. Oral Sci.. Publicado em: 11/04/2019
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4. Effects of experimental bleaching agents on the mineral content of sound and demineralized enamels
Abstract High concentrations of hydrogen peroxide can cause adverse effects on composition and structure of teeth. However, the addition of calcium and fluoride in bleaching agents may reduce enamel demineralization. Objective: To evaluate chemical changes of sound and demineralized enamels submitted to high concentrations of hydrogen peroxide containing fl
J. Appl. Oral Sci.. Publicado em: 04/10/2018
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5. In-office tooth bleaching with 38% hydrogen peroxide promotes moderate/severe pulp inflammation and production of ll-1β, TNF-β, GPX, FGF-2 and osteocalcin in rats
Abstract Objectives: To study the intensity of inflammatory infiltrate and production of interleukin-1β (ll-1β), tumor necrosis factor-β (TNF-β), fibroblast growth factor-2 (FGF-2), glutathione peroxidase (GPX), and osteocalcin in response to in-office tooth bleaching in rats. Material and Methods: Twenty male Wistar rats were randomized into four grou
J. Appl. Oral Sci.. Publicado em: 11/06/2018
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6. Neurosensory analysis of tooth sensitivity during at-home dental bleaching: a randomized clinical trial
Abstract Objective The objective of this study was to evaluate dental sensitivity using visual analogue scale, a Computerized Visual Analogue Scale (CoVAS) and a neurosensory analyzer (TSA II) during at-home bleaching with 10% carbamide peroxide, with and without potassium oxalate. Materials and Methods Power Bleaching 10% containing potassium oxalate was
J. Appl. Oral Sci.. Publicado em: 07/05/2018
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7. Influence of skin cold sensation threshold in the occurrence of dental sensitivity during dental bleaching: a placebo controlled clinical trial
Abstract Objective This study verified the occurrence of dental sensitivity in patients submitted to a 35% hydrogen peroxide based product (Whiteness HP Maxx 35% – FGM), skin cold sensation threshold (SCST) and its influence on dental sensitivity. Material and Methods Sixty volunteers were divided into 4 groups (n = 15), according to SCST (low: GI and GI
J. Appl. Oral Sci.. Publicado em: 18/01/2018
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8. 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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9. 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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10. 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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11. 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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12. 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