The Effect of Bleaching on the Basic Colour and Discoloration Susceptibility of Dental Composites

Korać, Samra; Ajanović, Muhamed; Tahmiščija, Irmina; Džanković, Aida; Konjhodžić, Alma; Gavranović-Glamoč, Alma; Hasić-Branković, Lajla

doi:10.5644/ama2006-124.361

Cited by 4 publications

(3 citation statements)

References 20 publications

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“…In the CIELAB metric, the greater the value, the larger the color difference and, consequently, the more perceptible the difference to the human eye. Aiming to improve the correction between computed and perceived color differences, the CIE recommended the use of CIEDE2000 color-difference formula (ΔE 00 ) [17,21].…”

Section: Discussionmentioning

confidence: 99%

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Effect of bleaching on the color match of single-shade resin composites

et al. 2023

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Purpose: To evaluate the color match of single-shade resin composites before and after bleaching procedures, through instrumental and visual analyses. Methods: Class V cavities were created on the buccal surfaces of 80 extracted human molars, restored with 4 single-shade composites (Omnichroma; Clearfil Majesty ES-2 Universal; Essentia Universal; Venus Diamond One). A spectrophotometer (VITA Easyshade V) was used to evaluate the tooth/resin color match before (T 0 ), and 24 h (T 1 ) and one week (T 2 ) after dental bleaching (Opalescence Boost PF 40%). Color variations (ΔE 00 ) were calculated and statistically analyzed (P < 0.05). Visual analysis was performed before and after tooth bleaching. Results: Spectrophotometric evaluations revealed statistically significant differences between materials at T 0 , T 1 , and T 2 (P < 0.05). Visual analysis reported excellent and very good grades (0 and 1, respectively), irrespective of the materials and timepoints. Conclusion: Data seem to indicate that single shade composites are able to shift their color when the surrounding tooth undergoes bleaching effects. Single-shade composites seem to achieve a good color match with the surrounding tooth structure, before and after professional bleaching.

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Section: Discussionmentioning

confidence: 99%

“…Bleaching can sometimes remove acquired stains on composites and return them to their original shade. However, bleaching is not able to change the shade of composite restorations to a lighter color as it would on a natural tooth structure [13,21,22].…”

Section: Discussionmentioning

confidence: 99%

Effect of bleaching on the color match of single-shade resin composites

et al. 2023

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“…During clinical tooth-bleaching procedures, both hydrogen peroxide and carbamide peroxide come into contact with various dental restorative materials. Following dental bleaching protocols, there is a possibility that the mechanical or chemical properties of dental restorations may be affected [21].…”

Section: Introductionmentioning

confidence: 99%

An In Vitro Study regarding the Wear of Composite Materials Following the Use of Dental Bleaching Protocols

Popescu,

Ţuculină,

Gheorghiță

et al. 2023

JFB

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Composite materials used in dental restorations are considered resistant, long-lasting and aesthetic. As the wear of restorations is an important element in long-term use, the aim of this study was to evaluate the surface condition of nanohybrid and microfilled composite resins, after being subjected to the erosive action of dental bleaching protocols. This paper reflects a comparative study between one nanofilled composite and three microfilled composites used in restorations. For each composite, three sets of samples (under the form of composite discs) were created: a control group, an “office bleach” group with discs bleached with 40% hydrogen peroxide gel, and a “home bleach” group with discs bleached with 16% carbamide peroxide gel. Wear was numerically determined as the trace and the coefficients of friction obtained using a tribometer, the ball-on-disk test method, and two balls: alumina and sapphire. For all composite groups, there were statistically significant differences between the wear corresponding to the control and bleaching groups, for both testing balls. Regarding the composite type, the largest traces were recorded for GC Gradia direct anterior, for all groups, using the alumina ball. In contrast, for the sapphire ball, 3M ESPE Filtek Z550 was characterized by the largest traces. With respect to the friction coefficients, the “office bleach” group recorded the largest values, no matter the composite or the ball type used. The 3M ESPE Valux Plus composite recorded the largest friction coefficients for the alumina ball, and 3M ESPE Filtek Z550 for the sapphire ball. Overall, the “office bleach” group was characterized by higher composite wear, compared to the “home bleach” protocol or control group. Nanofilled composite resins showed superior wear resistance to microfilled resins after undergoing a bleaching protocol.

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Color match evaluation using instrumental method for three single-shade resin composites before and after in-office bleaching

Cilingir,

Kariper

2023

Reviews on Advanced Materials Science

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The aim of this study is to evaluate the effect of an office bleaching agent on the color of various single-shade resin composites. Three single-shade resin composites were tested in this study. Thirty disk-shaped specimens were prepared with a diameter of 10 mm and a height of 1 mm, and they were divided into three groups (n = 10). After color measurements, 40% hydrogen peroxide containing bleaching agent gel was applied to all the specimens. Baseline and final color measurements were performed using a clinical spectrophotometer. Statistical analyses were performed. All bleached specimens had clinically incomprehensible color changes (ΔE < 3.3). Comparisons for single-shade composites revealed no statistically significant color difference between groups. With the limitation of this study in mind, color changes in single-shade resin-composites after office bleaching were found to be clinically acceptable. It may be appropriate to use single-shade composites that shorten the in-chair clinical time by facilitating shade selection.

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The Effect of Bleaching on the Basic Colour and Discoloration Susceptibility of Dental Composites

Cited by 4 publications

References 20 publications

Effect of bleaching on the color match of single-shade resin composites

Effect of bleaching on the color match of single-shade resin composites

An In Vitro Study regarding the Wear of Composite Materials Following the Use of Dental Bleaching Protocols

Color match evaluation using instrumental method for three single-shade resin composites before and after in-office bleaching

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