Influence of dental erosion on the shear bond strength of orthodontic brackets: an in vitro study

Degrazia, Felipe Weidenbach; Justino, Fabiana; Grehs, Renésio Armindo; Rosa, M. Monteagudo de la

doi:10.5335/rfo.v18i1.3120

Cited by 2 publications

(1 citation statement)

References 24 publications

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“…Although some articles report that eroded surfaces present a significant reduced debonding resistance, most studies focused in evaluating the influence of erosive agents in simulated restorative procedures (Casas-Apayco et al 2014) or during orthodontic treatment, i.e., in brackets previously bonded (Oncag et al 2005;Sheibaninia et al 2014). Our results showed that erosion on enamel surface before ceramic bracket placement did not significantly affect bond strength, similar to previous studies performed with metallic brackets (Degrazia et al 2013;Costenoble et al 2016). It is not known, however, whether the pumice cleaning or the acid-etch procedures alter all microstructural changes in the enamel imparted by erosive challenge.…”

Section: Discussionsupporting

confidence: 85%

Influence of dental erosion on shear bond strength of ceramic brackets bonded with two different adhesive systems: an in vitro study

et al. 2021

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This study aimed to analyze the shear bond strength (SBS) of ceramic orthodontic brackets bonded with two different adhesive systems to intact and eroded teeth. Ceramic brackets were bonded to 72 bovine central incisors divided into four groups, defined by two study factors: enamel condition (control group, kept in artificial saliva; and experimental group, eroded by using immersion cycles in Coke™ for 90 seconds, every six hours for five days), and adhesive system type (Transbond™ XT or Transbond™ Plus Color Change). Polycrystalline ceramic brackets were adhesively fixed on all specimens using the same light curing protocol. SBS was tested using 0.5 mm/min and the failure mode was classified. SBS data was analyzed using two-way ANOVA followed by Tukey test. The adhesive remnant index (ARI) scores were analyzed using Kruskal-Wallis test with Dunn's post-hoc pairwise comparison (α=0.05). Percentages of ARI scores between the groups were compared by Fisher’s exact test. Spearman's correlation coefficient was applied to investigate the correlation between ARI scores and SBS values. Only the adhesive system factor had significant effect on SBS (p=0.014), Transbond™ Plus Color Change showing higher values. No significance was found for enamel condition (p=0.665) or the interaction between adhesive system and enamel condition (p=0.055). ARI scores frequencies differed between groups (p<0.001). The median ARI scores were statistically different for most comparisons among the groups. However, no significant correlation was found between ARI scores and SBS. In conclusion, the type of adhesive system affected the SBS of ceramic brackets to dental enamel, but the enamel condition, intact or eroded, had no significant effect. There was no correlation between ARI scores and SBS values, although eroded enamel tended to retain more adhesive after bracket removal.

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Section: Discussionsupporting

confidence: 85%

Influence of dental erosion on shear bond strength of ceramic brackets bonded with two different adhesive systems: an in vitro study

et al. 2021

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Effect of conventional and digital methods and aging on the shear bond strength of orthodontic brackets with temporary crowns based on aged PMMA

Alsarani,

Bangalore,

Alfrisany

et al. 2024

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Shear bond strength (SBS) of orthodontic brackets bonded to temporary crowns (TC) was investigated. TC were manufactured using conventional and digital methods (CAD/CAM milling, 3D printing) and then subjected to cyclic aging (5, 000 cycles). Surface roughness (Ra) and contact angle of polished and abrasive blasted TC were determined before and after aging. Data analysis was performed using one-way ANOVA and repeated measures, and LSD in post-hoc tests (α=0.05). After surface treat ment, there was a significant increase in Ra of conventional and milled TC (p<0.001), while 3D printed showed a slight increase in Ra (p=0.073). The contact angle of polished TC surfaces was significantly different (p>0.05), and after surface treatment the differences in contact angle were small (p<0.001). Aesthetic orthodontic brackets bonded to temporary crowns, regardless of the production method, have adequate bond strength before and after aging, with the exception of 3D printed TCs after aging.

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Influence of dental erosion on the shear bond strength of orthodontic brackets: an in vitro study

Abstract: Group 1, 19.04(3.24) MPa; Group 2, 18.6(4.25) MPa; Group 3, 12.76(2.78) MPa; and Group 4, 13.01(3.22)

Cited by 2 publications

References 24 publications

Influence of dental erosion on shear bond strength of ceramic brackets bonded with two different adhesive systems: an in vitro study

Influence of dental erosion on shear bond strength of ceramic brackets bonded with two different adhesive systems: an in vitro study

Effect of conventional and digital methods and aging on the shear bond strength of orthodontic brackets with temporary crowns based on aged PMMA

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