Bleaching and Desensitizer Application Effects on Shear Bond Strengths of Orthodontic Brackets

Türkkahraman, Hakan; Adanir, Necdet; Gungor, Ahmet Yalcin

doi:10.2319/0003-3219(2007)077[0489:badaeo]2.0.co;2

Cited by 35 publications

(46 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Most authors 2,4,8,12,16 concluded that bleaching adversely affects the SBS of orthodontic brackets when the bonding procedure is performed immediately or delayed by up to 1 month. Bishara et al 6,11 and Uysal et al 5 contradicted the studies that reported adverse effects of bleaching agents on SBS of brackets.…”

Section: Discussionmentioning

confidence: 99%

“…Several authors 5,6,11 found no adverse effect of bleaching on bond strengths of orthodontic brackets. However, many others 2,7,12 have reported a significant reduction in the bond strength of brackets after bleaching. At-home bleaching is believed to be the most useful and effective bleaching method 13 ; it was first described by Haywood and Heymann 14 in 1989 as nightguard dental bleaching.…”

Section: Introductionmentioning

confidence: 99%

“…However, the changes in enamel structure and composition induced by these bleaching agents may decrease the shear bond strength (SBS) of orthodontic brackets. 2 Bleaching is a conservative alternative to more invasive esthetic treatments, such as crowning or the placement of veneers on discolored teeth. 3 Today, the most commonly used tooth bleaching agents contain hydrogen peroxide as the active ingredient.…”

Section: Introductionmentioning

confidence: 99%

“…3 Hydrogen peroxide acts as a strong oxidizing agent through the formation of reactive oxygen molecules; these reactive molecules attack long-chained, darkcolored chromophore molecules and split them into smaller, less colored, and more diffusible molecules. 3 Various studies 2,[4][5][6][7] have evaluated the effects of bleaching on the SBS of orthodontic brackets with the office bleaching method. It has been demonstrated [8][9][10] that 35% hydrogen peroxide solutions change enamel structure and composition.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Effects of different bleaching methods on shear bond strengths of orthodontic brackets

Gungor

Özcan

Alkış

et al. 2012

The Angle Orthodontist

View full text Add to dashboard Cite

Objective: To evaluate the effects of different bleaching methods on the shear bond strength (SBS) of orthodontic brackets. Materials and Methods: Forty-five freshly extracted premolars were randomly divided into three groups (n 5 15 per group). In group I, bleaching was performed with the office bleaching method. In group II, bleaching was performed with the home bleaching method. Group III served as the control. Orthodontic brackets were bonded with a light cure composite resin and cured with an LED light. After bonding, the SBS of the brackets were tested with a Universal testing machine. Results: Analysis of variance indicated a significant difference between groups (P , .001). The highest values for SBS were measured in group III (20.99 6 2.32 MPa). The SBS was significantly lower in groups I and II than in group III (P , .001). The lowest values for SBS were measured in group II (6.42 6 0.81 MPa). SBS was significantly higher in group I than in group II (P , .001). Conclusions: Both of the bleaching methods significantly affected the SBS of orthodontic brackets on human enamel. Bleaching with the home bleaching method affected SBS more adversely than did bleaching with the office bleaching method. (Angle Orthod. 2013;83:686-690.)

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of different bleaching methods on shear bond strengths of orthodontic brackets

Gungor

Özcan

Alkış

et al. 2012

The Angle Orthodontist

View full text Add to dashboard Cite

show abstract

“…However, changes in enamel structure and composition induced by these bleaching agents may decrease the shear bond strength (SBS) of orthodontic brackets. 3 Intracoronal bleaching is a conservative alternative to more invasive nonvital esthetic treatments such as crowning or the placement of veneers on discolored teeth. 2 Today, the most commonly used tooth-bleaching agents contain hydrogen peroxide as the active ingredient.…”

Section: Introductionmentioning

confidence: 99%

Effects of different intracoronal bleaching methods on shear bond strengths of orthodontic brackets

Gungor¹,

Özcan²,

Alkış³

et al. 2012

The Angle Orthodontist

View full text Add to dashboard Cite

Objective: To evaluate the effects of different intracoronal bleaching methods on the shear bond strengths (SBS) of orthodontic brackets. Materials and Methods: Sixty freshly extracted mandibular incisors were randomly divided into four groups (n 5 15 per group). After filling the root canals, root fillings were removed 2 mm apical to the cementoenamel junction, and a 2-mm-thick layer of zinc-phosphate cement base was applied. Group 1 served as the control. Intracoronal bleaching was performed with hydrogen peroxide (Opalacence Endo, Ultradent products Inc, South Jordan, Utah) in group 2, sodium perborate (Sultan Healthcare, Englewood, NJ) in group 3, and 37% carbamide peroxide (Whiteness Super Endo, Dentscare, ltda, Joinville, Brazil) in group 4. Orthodontic brackets were bonded with a light cure composite resin and cured with an LED light. After bonding, the SBS of the brackets was tested with a Universal testing machine. Results: Analysis of variance indicated a significant difference between groups (P , .001). The highest values for SBS were measured in group 1 (10.15 6 1.15 MPa). The SBS was significantly lower in groups 2, 3, and 4 than in group 1 (P , .001). The lowest values for SBS were measured in group 3 (6.17 6 0.85 MPa). SBS was significantly higher in group 4 than in group 3 (P , .05). Conclusions: Intracoronal bleaching significantly affected the SBS of orthodontic brackets on human enamel. Bleaching with sodium perborate affects SBS more adversely than does bleaching with other agents. (Angle Orthod. 2012;82:942-946.)

show abstract

Effects of tooth bleaching on shear bond strength of brackets rebonded with a self-etching adhesive system

2011

View full text Add to dashboard Cite

The purpose of this study was to ascertain the effects of tooth bleaching on the shear bond strength of orthodontic brackets rebonded with a self-etching adhesive system. A total of 39 premolars were collected and divided into three equal groups: in group 1 bracket bonding was performed without bleaching treatment; specimens in group 2 were bonded immediately after bleaching; and group 3 teeth were bleached, then immersed in artificial saliva and left for 7 days before bonding. The shear bond strength was measured, with the bonding/debonding procedures repeated once after the first debonding, and the bracket/adhesive failure modes were evaluated by the adhesive remnant index after each debonding. Excepting the mean shear bond strength for group 2 after the first debonding, the overall mean values reached the minimum clinical requirement of 6 MPa. The mean values at the first and second debondings were significantly higher in groups 1 and 3 than in group 2. Between groups 1 and 3, significant differences were noted at the first debonding, but not at the second debonding. Group 2 showed significant differences in mean shear bond strength between the first and second debondings. Bond failure at the enamel-adhesive interface occurred more frequently in group 2 than in groups 1 or 3 after the first debonding. The bracket-rebonding procedure can recover the reduced shear bond strength caused by immediate bonding after bleaching to a clinically acceptable level, but not to the prebleaching level.

show abstract

Bleaching and Desensitizer Application Effects on Shear Bond Strengths of Orthodontic Brackets

Abstract: Because bleaching and desensitizer application significantly affected shear bond strengths of orthodontic brackets on human enamel, they should be delayed until the completion of orthodontic treatment.

Cited by 35 publications

References 28 publications

Effects of different bleaching methods on shear bond strengths of orthodontic brackets

Effects of different bleaching methods on shear bond strengths of orthodontic brackets

Effects of different intracoronal bleaching methods on shear bond strengths of orthodontic brackets

Effects of tooth bleaching on shear bond strength of brackets rebonded with a self-etching adhesive system

Contact Info

Product

Resources

About