Effect of bleaching agents on bonding to pulp chamber dentine

Timpawat, S; Nipattamanon, Chiraya; Kijsamanmith, Kanittha; Messer, Harold H.

doi:10.1111/j.1365-2591.2004.00931.x

Cited by 39 publications

(33 citation statements)

References 22 publications

(41 reference statements)

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“…In view of the increasing popularity of non-vital bleaching, there arises in tandem an increasing need for effective treatment of discolored teeth with non-vital pulps using bleaching agents 2) . In restorative dentistry, a number of researches have evaluated the shear bond strength (SBS) of composite resins on enamel and dentin after intracoronal bleaching treatment, but there is still no consensus on its effects on bond strength [3][4][5] .…”

Section: Introductionmentioning

confidence: 99%

Can intra-coronally bleached teeth be bonded safely after antioxidant treatment?

et al. 2010

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The aim of this study was to compare the effects of antioxidant treatment and delayed bonding, following intra-coronal bleaching, on the shear bond strength (SBS) and bond failure site of brackets bonded to enamel. Eighty mandibular incisors were divided into four equal groups. After root canal filling, specimens in Group 1 were used as control and not bleached. For experimental groups 2 to 4, bleaching agent was placed into the rest of the cavity for a four-day period and this bleaching treatment was performed two times. In Group 2, specimens were bonded immediately after bleaching; in Group 3, specimens were bleached and then immersed in artificial saliva for 30 days before bonding; in Group 4, specimens were bleached, treated with an antioxidant agent, and then bonded. The SBS values of bonded brackets were measured in megapascal (MPa), while adhesive remnant index (ARI) scores were determined after the brackets failed. The SBS values of Group 1 (mean: 20.3±7.1 MPa) and Group 4 (mean: 18.2±6.1 MPa) were significantly higher (p>0.001) than those of Group 2 (mean: 4.9±3.2 MPa) and Group 3 (mean: 8.7±4.9 MPa). No significant differences in SBS were found between Groups 1 and 4, and between Groups 2 and 3.

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Section: Introductionmentioning

confidence: 99%

Can intra-coronally bleached teeth be bonded safely after antioxidant treatment?

et al. 2010

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“…It is believed that residual oxygen remains on the tooth surface or inside the tooth after the bleaching treatment. Consequently, this inhibits the polymerization of resin monomers, thereby causing reduced bond strength of the restorations [13][14][15][16] . However, with the passage of time, the residual oxygen slowly dissipates so that oxidation is reduced.…”

Section: Introductionmentioning

confidence: 99%

Improvement of Bonding to Bleached Bovine Tooth Surfaces by Ascorbic Acid Treatment

et al. 2007

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The purposes of this study were twofold: (1) to examine the effects of bleaching on the bond strength of an adhesive to bovine tooth surfaces; and (2) to explore the effectiveness of an ascorbic acid application in preventing the deterioration of bonding ability due to bleaching. In the experimental groups, ascorbic acid was applied to the bleached bovine tooth surfaces. In the control groups, the tooth specimens were bleached but no ascorbic acid application was carried out. All bonded specimens were subjected to shear bond test, and the data were statistically analyzed with twoway ANOVA and Bonferroni' s test (p＝0.05). Bond strengths to the bleached specimens were significantly lower than those of non-bleached specimens. No statistical differences were found in bond strength between the bleached and non-bleached groups when the ascorbic acid treatment was carried out. Results of this study suggested that ascorbic acid application was effective in preventing the reduction of bonding ability to bleached teeth.

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“…Cp and Sp decompose, and the reaction releases Hp, the active substance (oxidizing agent) in bleaching. Therefore, the association of Sp and Hp in the SpH group might explain the increase of the free oxygen radical concentration in comparison with the Cp16 group and, consequently, the decrease of bond strength values [37].…”

Section: Discussionmentioning

confidence: 99%

Effect of internal bleaching agents on the bond strength of glass fiber posts to root dentine

Ferreira

Renovato

Santana

et al. 2016

Rev. Odonto Ciênc. (Online)

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Objective: This study evaluated the effect of internal bleaching agents on the bond strength of glass fiber posts to root dentine. Methods: Seventy bovine teeth were divided into 7 experimental groups (n=10) according to the bleaching agent used: SpH -sodium perborate + 20% hydrogen peroxide; SpW -sodium perborate + distilled water; Cp37 -37% carbamide peroxide; Cp16 -16% carbamide peroxide; Cp10 -10% carbamide peroxide; H -35% hydrogen peroxide; C -no bleaching agent (control). After bleaching, posts were cemented with a self-adhesive resin cement (RelyX U100) and the roots were crosssectioned to obtain two discs from each third. The posts underwent micropush-out testing, and bond strength values (MPa) were analyzed using ANOVA in a split-plot arrangement and the Tukey test (p<0.05). Failure mode was evaluated under confocal microscopy. Results: There were no significant differences between the control and bleaching agent groups. Bond strength was greater in the cervical third of the 16% carbamide peroxide (Cp16) group than in the sodium perborate + 20% hydrogen peroxide (SpH) group. The cervical third had a higher bond strength than the apical third in the 10% carbamide peroxide (Cp10), 16% carbamide peroxide (Cp16) and sodium perborate + distilled water (SpW) groups, and no significant differences in the other groups. Adhesive cement-dentine failure was prevalent in all groups. Conclusion: The use of internal bleaching agents did not decrease the bond strength of glass fiber posts to root dentin.

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Effect of bleaching agents on bonding to pulp chamber dentine

Abstract: In terms of subsequent bond strength during restoration, sodium perborate mixed with distilled water appears to be the best intracoronal bleaching agent.

Cited by 39 publications

References 22 publications

Can intra-coronally bleached teeth be bonded safely after antioxidant treatment?

Can intra-coronally bleached teeth be bonded safely after antioxidant treatment?

Improvement of Bonding to Bleached Bovine Tooth Surfaces by Ascorbic Acid Treatment

Effect of internal bleaching agents on the bond strength of glass fiber posts to root dentine

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