Enamel loss at bond-up, debond and clean-up following the use of a conventional light-cured composite and a resin-modified glass polyalkenoate cement

Ireland, Anthony J; Hosein, Ingrid; Sherriff, Martyn

doi:10.1093/ejo/cji031

Cited by 67 publications

(81 citation statements)

References 19 publications

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“…Another study reported smaller losses, ranging from 1.1 µm to 4.57 µm (HOSEIN et al, 2004). Despite differences in enamel loss described in the literature depending on acid concentration and/or methodology, studies show agreement that this stage causes greater structural loss (SILVERSTONE, 1974;DIEDRICH, 1981;HOSEIN et al, 2004;IRELAND et al, 2005). Clinically, any orthodontist should minimize the loss of enamel during the etching procedures.…”

Section: Discussionmentioning

confidence: 99%

Enamel loss and superficial aspect during bonding and debonding of metallic brackets

et al. 2016

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ABSTRACT:To evaluate the cumulative enamel loss during bonding and debonding procedures of orthodontic metallic brackets and to analyze the enamel superficial roughness. Forty-seven maxillary first premolars were obtained for quantitative and qualitative analysis. For quantitative analysis, forty premolars were weighed at each stage of treatment and the equivalent thickness of enamel loss was measured. The amount of tooth mass loss in each stage was divided by the density value to obtain the corresponding enamel volume lost. Subsequently, these volumes were divided by a circular area with a diameter of 7 mm, thus obtaining the equivalent thickness of enamel loss. They were assessed under the following conditions: as sound enamel, after acid conditioning, following the removal of residual resin composite, after final polishing with high or low-speed, and with or without water refrigeration. A rugosimeter was used to obtain a graphic registration of the enamel superficial roughness before and after acid conditioning. The data were analyzed with the Quantikov software and the Shapiro Wilk's and Wilcoxon statistical tests were used to evaluate enamel superficial roughness. The one-way ANOVA followed by Bonferroni Post-Hoc tests were used to analyze the amount of enamel loss. For qualitative analysis, scanning electron microscopy (SEM) of the enamel surfaces was performed on seven premolars, one in each step. Acid conditioning significantly increased enamel surface roughness (p<0.01). Based on the dental mass weighed after each stage of evaluation, enamel loss was statistically significant in all stages (p<0.01). However, when the 4 different final polishing methods were compared, no statistically significant differences were registered regarding loss of mineralized structure (p=0.72). The SEM analysis revealed that the tungsten-carbide bur with water refrigeration and lowspeed rubber points caused less damage to the enamel. The greatest amount of enamel loss was due to acid conditioning. The losses relative to abrasion with composite removal or after the 4 polishing protocols were similar. Finally, none of the enamel surfaces was restored to their original aspects after bonding and debonding metallic brackets.

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Section: Discussionmentioning

confidence: 99%

Enamel loss and superficial aspect during bonding and debonding of metallic brackets

et al. 2016

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“…Despite a plethora of studies evaluating the bond strength of different orthodontic adhesives and surface alterations after bracket debonding, 8,9 only a few studies have focused on possible changes in the color of enamel after treatment. In a clinical study, the color values were measured in patients before and after orthodontic treatment, and it was reported that the color of natural teeth changed after orthodontic treatment.…”

Section: Introductionmentioning

confidence: 99%

Effects of different orthodontic adhesives and resin removal techniques on enamel color alteration

Boncuk¹,

Çehrelį

Polat-Özsoy

2014

The Angle Orthodontist

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Objective: To investigate the color alterations in enamel following the use of different orthodontic bonding resins and adhesive residue-removal burs. Materials and Methods: Metal brackets were bonded to extracted human premolars (n 5 175) by using an etch-and-rinse adhesive system, a self-etch adhesive system (SEP), or a resin-modified glass ionomer cement (RMGIC). After 24 hours of photoaging, the brackets were removed and the adhesive residue on the tooth surfaces was cleaned with either a tungsten carbide bur or a Stainbuster bur. Tooth colors were measured with a spectrophotometer at baseline, after adhesive removal, and after additional photoaging. Color evaluation was made, and color differences induced by photoaging were calculated. Statistical evaluation was made using the Kruskal-Wallis test and the Mann-Whitney U-test, with Bonferroni correction. Results: All specimens showed discoloration at varying levels. The highest color change was observed in the etch-and-rinse adhesive/tungsten carbide bur group. When the etch-and-rinse and self-etch adhesives were used, adhesive-remnant removal with Stainbuster burs resulted in significantly lower discoloration. The type of bur did not affect the extent of enamel discoloration in the RMGIC group. Conclusions: Orthodontic treatment alters the original color of enamel, and both the adhesive system and the resin-removal methods are responsible for this change. When brackets are bonded with the etch-and-rinse system or the SEP, cleaning the adhesive residuals with Stainbuster burs is recommended for minimal change. RMGIC can be safely cleaned with tungsten carbide burs. (Angle Orthod. 2014;84:634-641.)

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“…12 Greatest enamel loss was seen when ultrasonic scaler was used for adhesive removal 12,27 while diamond finishing burs were extremely injurious as they produce deep grooves on enamel. 5,22 Eminkahyagil N et al 15 concluded that clean-up with high-speed tungsten carbide bur was most hazardous to enamel.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of enamel surface changes by different enamel conditioners and de-bonding procedure using optical coherence tomography: An in-vitro qualitative study

2020

IJODR

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Introduction: The purpose of this study is to evaluate surface changes of enamel after using different enamel conditioning agents and bonding adhesives after de-bonding and clean-up of metal and ceramic brackets using optical coherence tomography. Method: Metal and ceramic brackets were bonded onto 120 pre-molars, divided into 4 groups [n=30] which were de-bonded after 24 hours. Enamel conditioners, bonding agents and adhesive resins of four different brands were used in each group. The images of enamel surface were captured with Optical Coherence Tomography [OCT] machine; pre-treatment (T0), post-etching (T1), after bracket de-bonding (T2) and post-cleanup (T3). A spectral domain optical coherence tomography system with 5μm axial spatial resolution was used. This was connected to a pre-configured computer system. A total of 480 images were evaluated for enamel surface evaluation. Results: OCT images obtained allowed us to evaluate the enamel surface after acid-etching and post de-bonding and clean-up procedures. 2D OCT analysis allowed in-depth analysis of enamel loss after various procedures. OCT also assisted in locating remnant adhesive layer after clean-up. Conclusion: OCT is a powerful clinical tool for the use in dentistry and can be used effectively to evaluate enamel surface loss after various procedures.

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Enamel loss at bond-up, debond and clean-up following the use of a conventional light-cured composite and a resin-modified glass polyalkenoate cement

Cited by 67 publications

References 19 publications

Enamel loss and superficial aspect during bonding and debonding of metallic brackets

Enamel loss and superficial aspect during bonding and debonding of metallic brackets

Effects of different orthodontic adhesives and resin removal techniques on enamel color alteration

Evaluation of enamel surface changes by different enamel conditioners and de-bonding procedure using optical coherence tomography: An in-vitro qualitative study

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