Administration of ascorbic acid to prevent bleaching-induced tooth sensitivity: a randomized triple-blind clinical trial.

Abstract:

:This study evaluated the effect of ascorbic acid, 500 mg every eight hours, on bleaching-induced tooth sensitivity. A triple-blind, parallel design, and placebo-controlled randomized clinical trial was conducted on 39 adults. The pills (placebo or ascorbic acid) were administered three times per day for 48 hours; the first dose was given one hour prior to each bleaching session. Two bleaching sessions with 35% hydrogen peroxide gel were performed with a one-week interval. Tooth sensitivity was recorded up to 48 hours after bleaching. The color evaluation was performed before and 30 days after bleaching. The absolute risk and intensity of tooth sensitivity were evaluated by Fisher exact and Mann-Whitney U-tests, respectively. Color changes were evaluated by unpaired t-test (α=0.05). There were no significant differences in the absolute risk and intensity of tooth sensitivity and color change between the groups. Both groups showed a similar risk of tooth sensitivity (p>0.05). The perioperative use of an antioxidant, such as ascorbic acid (500 mg, three times daily) perorally, was not able to prevent bleaching-induced tooth sensitivity or reduce its intensity.

journal_name

Oper Dent

journal_title

Operative dentistry

authors

de Paula EA,Kossatz S,Fernandes D,Loguercio AD,Reis A

doi

10.2341/12-483-C

subject

Has Abstract

pub_date

2014-03-01 00:00:00

pages

128-35

issue

2

eissn

0361-7734

issn

1559-2863

journal_volume

39

pub_type

杂志文章,随机对照试验
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  • Impact of Recently Developed Universal Adhesives on Tensile Bond Strength to Computer-aided Design/Manufacturing Ceramics.

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  • Influence of Tooth Pigmentation on H2O2 Diffusion and Its Cytotoxicity After In-office Tooth Bleaching.

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    pub_type: 杂志文章

    doi:

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  • Effect of a chlorhexidine-containing adhesive on dentin bond strength stability.

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    pub_type: 杂志文章,随机对照试验

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  • Direct Posterior Restorations: A 13-Year Survey of Teaching Trends and Use of Materials.

    abstract:OBJECTIVE::The study aimed to evaluate teaching trends and use of materials in direct posterior restorations during a 13-year period in an Israeli dental school. METHODS::Data registered in computerized files, relating to posterior restorations performed in the student clinic during the past 13 years (2004-2016), were...

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    pub_type: 临床试验,杂志文章,随机对照试验

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    journal_title:Operative dentistry

    pub_type: 杂志文章

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  • Effect of Different Light Sources and Enamel Preconditioning on Color Change, H2O2 Penetration, and Cytotoxicity in Bleached Teeth.

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    pub_type: 临床试验,杂志文章,随机对照试验

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    pub_type: 杂志文章

    doi:

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  • Curing of pit & fissure sealants using Light Emitting Diode curing units.

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    doi:

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