Effect of Salivary pH on Color Stability  of Different Flowable Composites – A  Prospective In-vitro Study

Batra, Renu; Kataria, Pratik; Kapoor, Sonali

doi:10.7860/jcdr/2016/21584.8641

Cited by 8 publications

(9 citation statements)

References 10 publications

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“…Different drinks, such as tea, soda, beer, coffee, and orange juice, can affect the physical and chemical structures of restorative materials 17 . In addition, the oral environment associated with the characteristics of the beverage can influence the discoloration of restorative materials and affect the surface integrity 25 .…”

Section: Discussionmentioning

confidence: 99%

“…The different results observed among the composites is due to its composition, which differ from resin matrix composition, particle size and conversion after polymerization 3 . The resin matrix, which is responsible for the stability of color, can influence a higher staining 25,28 . Depending on the composition, it can absorb more or less water (and other substances), which leads to discoloration 19 .…”

Section: Discussionmentioning

confidence: 99%

“…Providing subsidies to conclude the different compositions of the resinous matrix can promote different results with natural or synthetic pigmentation drinks. Additionally, the drink's acidity can significantly alter the stability of the color of the composites, generating aesthetic disadvantages and disturbing clinical practice 25 . Thus, professionals should focus more attention to the different characteristics of each patient, such as their habits and customs, and then select the best restorative material.…”

Section: Discussionmentioning

confidence: 99%

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Color stability of nanohybrid composite resins in drinks

et al. 2019

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Aim: The objective of this study was to evaluate the effects of solutions on the color stability of nanohybrid composite resins. Methods: The experimental sample consisted of 90 composite specimens (Beautifil II; Z350XT; Premisa), divided into three subgroups (n=10) according to the solutions (matte tea; lemon flavor isotonic drink; artificial saliva). The specimens were immersed in the solutions (5 mL/specimen) while stirring for 5 minutes, four times a day, with 1-hour intervals, repeated for 15 days. The color of the specimens was analyzed before (baseline) and after the 15th day of cycling using the CIELAB system. Data were analyzed using the two-way analysis of variance (ANOVA) and Tukey’s test (α=5%). Results: Different behaviors were observed among resins. Beautifil II presented the highest color change (∆E=4.18) and less color stability, statistically different from the others (p<.05). The solutions also presented different behaviors. The lemon flavor isotonic drink (∆E=3.95) promoted the highest color change, statistically different from saliva (∆E=2.75; p<.05). The interaction between Beautifil II and isotonic drink became even more evident and significant (p<.05). Conclusion: The isotonic drink is the solution that most affected the resins, and Beautifil II presents the worst color stability.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Color stability of nanohybrid composite resins in drinks

et al. 2019

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“…El pH salival 5 considerado ácido produjo una mayor alteración en la estabilidad cromática de las resinas fluidas, resultados que guardan relación con estudios previos donde compararon la estabilidad en cuanto al color de tres resinas fluidas de diferentes marcas sometidas a tres tipos de pH salival (6.5, 7 y 7.5) destacando cambio máximo de color cuanto más ácido fuera el pH (13) , resultado que concuerda con el obtenido en el presente estudio, donde frente al pH 5 salival que fue el más ácido, se presentaron cambios notables sobre las muestras mientras que, cuando las muestras fueron sumergidas en saliva con pH 7 se evidenció cambios de color en menor proporción independientemente de la resina empleada en el estudio.…”

Section: Discussionunclassified

Influencia del ph salival en la estabilidad del color de diferentes resinas fluidas: estudio in vitro

Mejia

Montaño²,

García

et al. 2019

Kiru

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Influencia del ph salival en la estabilidad del color de diferentes resinas fluidas: estudio in vitro Influence of salivary PH in color stability of different flowable resins: In vitro study RESUMEN Objetivo: Determinar la estabilidad del color de dos diferentes tipos de resina fluida al ser inmersas en saliva artificial con tres pH diferentes, empleando colorímetro digital Vita Easy-shade. Materiales y métodos: Se plantea un estudio experimental, comparativo e in vitro utilizando 90 discos construidos a partir de dos marcas de resina fluida de 10mm de diámetro y 1 mm de espesor, fotopolimerizados mediante una misma lámpara, tras su confección fueron mantenidos en agua destilada y realizado un primer registro de color utilizando colorímetro digital Easy-shade, las muestras fueron divididas en tres grupos y a su vez en tres subgrupos, pasando a ser sumergidas en saliva artificial con pH diferente de 5, 6 y 7 respectivamente durante 7 días, realizando una nueva toma de color mediante colorímetro digital, posteriormente las muestras fueron sumergidas en zumo de remolacha como agente pigmentante, durante 24 horas tras este periodo fueron lavadas para eliminar residuos del pigmento y realizada una tercera toma de color. Resultados: Mayor cambio de color se produjo en los discos que fueron sometidos a saliva artificial con pH 5 (p=0,000), los menores cambios de color se presentaron en los discos que fueron sumergidos en saliva artificial con pH 7. Conclusiones: El pH salival 5 o ácido, provocó mayor cambio en cuanto al color sin diferencia significativa entre los materiales probados.

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“…Relative to the color change caused by cola soft drink, according to Ceci et al 17 this may be related to the presence of phosphoric acid in this product. Various authors 19,20 have pointed out that the presence of alcohol and acid in beverages commonly used by the population may lead to the process of staining, due to softening of the surface of composites, and consequently, absorption of the coloring agents in these substance by the resin matrix 21 .…”

Section: Discussionmentioning

confidence: 99%

Color evaluation of a resin cement light polymerized by different light sources and submitted to potentially staining beverages

Dotta

Bianco

Catirse

et al. 2018

Rev. odontol. UNESP

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Introduction The color stability of resin cements, whether dual-pre-cured or photopolymerizable, as well as the color of the dental substrate, are fundamental for the aesthetic success of ceramic restorations, since the ceramic presents a high level of translucency due to its small thickness. Objective The aim of this in vitro study was to evaluate the color of a resin cement light polymerized by different light sources and immersed in potentially staining beverages. Material and method Were made 42 specimens of resin cement Variolink-Esthetic (2×6mm) (n=7), being half polymerized with LED light (F1) and half with Halogen light (F2). The specimens were stored in artificial saliva at 37 °C±1 °C. After 24 hours, they were polished with abrasive discs, and divided for the purpose of being submitted to the different solutions for 2 minutes per day, for 28 days, as follows: S1 – Coca-Cola; S2 – Red Wine; and S3 – Distilled Water (Control). Five color readouts were taken: T0 – initial; T1 – 7 days; T2 – 14 days; T3 – 21 days; and T4 – 28 days; with a spectrophotometer (Model SP62S). The color change data (ΔE*) were submitted to statistical analysis, ANOVA and Tukey (p≤0.05). Result Analyzing the factor solution, S2 (5.89 (±0.02)), produced a higher ΔE* value than S1 (3.79 (±0.02)) and (S1), a higher value than S3 (1.41 (±0.02)). Analyzing the factor light source, F2 (4.05 (±0.12)), produced a higher ΔE* value than F1 (3.33 (±0.12)). When analyzing the factor time, ΔE* values were found to increase gradually over the course of time: T1(2.36 (±0.08)); T2(3.27 (±0.08)); T3(4.06 (±0.08)); and T4(5.09 (±0.08)). Conclusion It was concluded that red wine produced a greater color change; Halogen light promoted highest degree of pigmentation; and the longer the time of immersion, the greater the color change of the material.

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Effect of Salivary pH on Color Stability of Different Flowable Composites – A Prospective In-vitro Study

Cited by 8 publications

References 10 publications

Color stability of nanohybrid composite resins in drinks

Color stability of nanohybrid composite resins in drinks

Influencia del ph salival en la estabilidad del color de diferentes resinas fluidas: estudio in vitro

Color evaluation of a resin cement light polymerized by different light sources and submitted to potentially staining beverages

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