Background and surrounding colors affect the color blending of a single-shade composite

Barros, Mariana Silva; Silva, Paula Fernanda Damasceno; Santana, Márcia Luciana Carregosa; Bragança, Rafaella Mariana Fontes de; Faria-e-Silva, André Luís

doi:10.1590/1807-3107bor-2023.vol37.0035

Cited by 3 publications

(3 citation statements)

References 24 publications

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“…be attributed to the high translucency of the single-shade composites, which allows the color of the surrounding substrate to influence the overall color of the composite. 10,12 By using images captured with a DSLR camera, we were able to evaluate the extent of color adjustment based on the distance from the interface between the composites. As expected, the greatest color adjustment occurred near the interface, with the CAP values diminishing toward the center of the inner composite.…”

Section: Discussionmentioning

confidence: 99%

“…5,6 In recent years, scientists have developed composites with improved color adjustment potentials (CAP) to enhance the predictability of color-matching restorations. [7][8][9][10][11][12] This eliminates the need for shade selection by utilizing single-shade composites that can adjust their color to match the tooth structure. This is possible due to their translucency, which allows the "mirroring" of the underlying substrate color to affect the restoration's final color.…”

mentioning

confidence: 99%

“…14,15 However, previous studies have used spectrophotometers that do not allow for the measurement of color in different areas of the specimen. [9][10][11][12]16 In contrast, digital methods based on imaging systems and software, such as DSLR cameras combined with a white balance gray card, allow for the measurement of the color of diverse and small areas of a specimen. [17][18][19] Therefore, the present study aimed to evaluate the effect of the distance from the composite interface and an underlying chromatic substrate on the CAP of two single-shade composites.…”

mentioning

confidence: 99%

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The role of interface distance and underlying substrate on the color adjustment potential of single‐shade composites

de Livi,

Santana,

Bragança

et al. 2023

J Esthet Restor Dent

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ObjectiveThis study assessed how the distance from the composite interface and the underlying chromatic substrate affect the color adjustment potential (CAP) of two single‐shade composites.Materials and MethodsCylinder‐shaped specimens were created using Vittra APS Unique (VU), Charisma Diamond One (DO), and a shaded (A3) composite. Some single‐shade specimens were surrounded by the A3 composite, forming dual specimens. Color measurements of simple specimens were taken against a gray background using a spectrophotometer. All specimens were positioned at a 45° angle in a viewing booth under illuminant D65, and images were captured with a DSLR camera against gray or A3 backgrounds. Image colors were measured using image processing software and converted to CIELAB coordinates. Color differences (ΔE00) between the single‐shade composites and the A3 composite were calculated. CAP was determined by comparing data from simple and dual specimens.ResultsNo clinically significant differences were observed between color measurements obtained from images and the spectrophotometer. CAP was higher for DO compared to VU and increased as the distance from the composite interface decreased and when specimens were positioned against an A3 background.ConclusionThe color adjustment potential increased with decreased distance from the composite interface and against a chromatic background.Clinical SignificanceAchieving satisfactory color match in restorations using single‐shade composites is crucial, and selecting an appropriate underlying substrate is essential. The color adjustment gradually decreases from the restoration margins towards its center.

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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The role of interface distance and underlying substrate on the color adjustment potential of single‐shade composites

de Livi,

Santana,

Bragança

et al. 2023

J Esthet Restor Dent

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Color matching and color recovery in large composite restorations using single-shade or universal composites

Rosa,

Silva,

Silva

et al. 2024

Braz. Dent. J.

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This study assessed the color-matching ability and color recovery of unprepared teeth when using single-shade composites and a universal composite in large restorations. Buccal and palatine surface colors of molars were measured with a spectrophotometer (CIELAB) before preparing round cavities (6 mm in diameter, 2 mm in depth). The cavities were randomly filled with a single-shade composite (Omnichroma, Diamond One, or Vittra APS Unique) or a universal composite (Filtek Universal). Color measurements of the restored cavities were taken, and overall color differences (ΔEab and ΔE00) and differences in the whitening index for dentistry (ΔWID) from baseline were calculated. Additionally, visual assessments of a color match to the surrounding enamel were performed by forty evaluators (laypersons and undergraduate students of dentistry) in a viewing booth under illuminant D65, with rating scores from 0 (no color mismatch) to 4 (not acceptable). Data were analyzed using RM or one-way ANOVA (α = 0.05). Results showed that the restorations generally exhibited whiter colors (WID ranged from 27.9 to 41.3) than the unprepared teeth (WID ranged from 15.9 to 19.3). The composite Filtek Universal demonstrated the lowest color discrepancy (ΔWID = 8.6; ΔE00 = 10.8; and ΔE00 = 6.2), and no significant differences were observed among the evaluated single-shade composites. Furthermore, all composites showed similar and adequate color matches to the surrounding enamel. However, it is important to note that despite their ability to match the surrounding enamel reasonably, none of the composites evaluated in large restorations fully recovered the color observed in unprepared teeth.

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Color discrepancy of single-shade composites at different distances from the interface measured using cell phone images

Santana,

Livi,

Faria-e-Silva

2024

Restor Dent Endod

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Background and surrounding colors affect the color blending of a single-shade composite

Cited by 3 publications

References 24 publications

The role of interface distance and underlying substrate on the color adjustment potential of single‐shade composites

The role of interface distance and underlying substrate on the color adjustment potential of single‐shade composites

Color matching and color recovery in large composite restorations using single-shade or universal composites

Color discrepancy of single-shade composites at different distances from the interface measured using cell phone images

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