Color match of a feldspathic ceramic CAD-CAM material for ultrathin laminate veneers as a function of substrate shade, restoration color, and thickness

Sari, Taylan; Ural, Çağrı; Yüzbaşıoğlu, Emir; Duran, İbrahim; Cengiz, Seda; Kavut, İdris

doi:10.1016/j.prosdent.2017.02.022

Cited by 32 publications

(45 citation statements)

References 26 publications

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“…Spectrophotometers are commonly applied for color measurement . Many studies have estimated the color reproduction ability of different ceramics . Translucency is another important property for a ceramic .…”

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confidence: 99%

Color Aspect of Monolithic Zirconia Restorations: A Review of the Literature

Tabatabaian

2018

Journal of Prosthodontics

136

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Monolithic zirconia restoration is an acceptable treatment option in restorative dentistry and a developing trend in esthetic dentistry. Digital dentistry has simplified fabrication of monolithic zirconia restorations. Zirconia ceramic has introduced an opportunity to achieve both esthetic and mechanical requirements for restorations. This is rarely found for a ceramic in dentistry. Monolithic zirconia restorations represent an acceptable durability, comparable to metal-ceramic restorations, while they are superior to metal-ceramic restorations esthetically; however, difficulties to gain an optimal shade reproduction and a color match with monolithic zirconia restorations still remain. The color of these restorations may be influenced by manufacturing processes, laboratory procedures, and clinical factors. Manufacturing processes determine basic optical properties of zirconia ceramics. Different laboratory procedures may create optical changes in zirconia ceramics. Also clinical factors such as dental background, cement, and zirconia restoration features may affect the resulting color. This literature review aimed to discuss potent factors in the color of monolithic zirconia restorations. An electronic search of the PubMed/Google Scholar database was performed to find related English-language articles published between January 1, 2000, and October 31, 2017. The key terms of background, cement, ceramic, color, esthetics, shade, spectrophotometry, thickness, translucency, and zirconia were used both individually and simultaneously. Also, a manual search was conducted, and five classic articles of color science were added. Thus 192 articles were included. In the last decade, shade reproduction of monolithic zirconia restorations has been highly regarded; however, further improvements are required in the manufacturing process to produce tooth-like zirconia ceramics. An esthetic guideline named background-cement-ceramic color harmony was suggested in this study; however, more clinical practice guidelines should be established for monolithic zirconia restorations on esthetics, and therefore, more studies are required.

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confidence: 99%

Color Aspect of Monolithic Zirconia Restorations: A Review of the Literature

Tabatabaian

2018

Journal of Prosthodontics

136

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“…Kang et al, 2018;Kurklu et al, 2013;Nakamura, Saito, Fuyikawa, & Ishigaki, 2002;Niu et al, 2014;O. Ozturk et al, 2008;Pires, Novais, Araujo, & Pegoraro, 2017;Sari et al, 2017;Sen & Us, 2017;Silva et al, 2012;Vichi et al, 2011;Volpato, Monteiro, de Andrada, Fredel, & Petter, 2009;Wang et al, 2013). Interestingly, Dozic et al (2003) was able to demonstrate that a 0.70mm ceramic core has the capability to mask a discoloring background under their layered specimens, which would otherwise display an increased ΔE.…”

Section: Discussionmentioning

confidence: 99%

“…In previous studies, the ΔE was significantly increased in test groups of 0.5mm thicknesses compared to those of 1.0mm . The observed opacity of a ceramic tends to increase with thicker restorations since most of the light diffusion and reflectance occurs in the ceramic itself; an opaquer ceramic should better mask the discoloring effects of a dark substructure (Sari et al, 2017). Restorations with a thickness of 0.3mm are currently incapable of masking a substrate with a large color difference.…”

Section: Discussionmentioning

confidence: 99%

“…In other words, if a lighter shade of porcelain is desired, the substrate shade must too be lightened in order to obtain a more acceptable ΔE, while the opposite is true for darker ultra-thin restorations (Comlekoglu et al, 2016;Sari et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

“…During the restorative planning stage, diagnostic casts should be recorded in order to determine the future size/shape/color of teeth and the gingival contour (da Cunha, Mukai, Hamerschmitt, & Correr, 2015). Clinicians should pay particular attention in selecting two shades, namely the desired shade of final restoration and the shade of the substrate or dentin (Sari et al, 2017). Total arch intraoral scans create a virtual model of the mouth so that the esthetics and functional parameters are considered in the restorative wax-up (da Cunha et al, 2015).…”

Section: Ips Emax Cadmentioning

confidence: 99%

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Effect of porcelain thickness and translucency on the final shade of IPS e.max CAD overlaying a dark substrate.

Alena¹

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The effect of ceramic thickness on opalescence

Valizadeh

Nahavandi

Daryadar

et al. 2020

Clinical & Exp Dental Res

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ObjectivesCreating a tooth‐like appearance by use of dental ceramics is still a challenge. Opalescence is a unique property of dental enamel, attempted to be mimicked by dental restorative materials. This study aimed to assess the effect of ceramic thickness on opalescence.Materials and methodsTwenty‐four discs were fabricated of feldspathic ceramic, IPS e.max, zirconia and Enamic ceramics with 10 mm diameter and 0.5 and 1 mm thicknesses (n = 12). The opalescence of ceramic specimens was calculated by measuring the difference in yellow‐blue axis (CIE ∆b*) and red‐green axis (CIE ∆a*) between the transmitted and reflected spectra. One‐way ANOVA was applied to compare the opalescence of different ceramic specimens with variable thicknesses at .05 level of significance.ResultsThe opalescence of feldspathic, IPS e.max, zirconia and Enamic ceramic specimens with 0.5 mm thickness was 1.06 ± 0.15, 3.39 ± 0.15, 1.98 ± 0.15 and 1.44 ± 0.15, respectively. By increasing the thickness to 1 mm, the opalescence of feldspathic, IPS e.max, zirconia and Enamic ceramics changed to 1.12 ± 0.15, 1.47 ± 0.15, 3.85 ± 0.15 and 2.00 ± 0.15, respectively. In all groups except for IPS e.max, the mean opalescence of 1‐mm‐thick specimens was higher than that of 0.5‐mm‐thick specimens.ConclusionType and thickness of ceramic affect its opalescence. The opalescence of all ceramic specimens tested in this study with 0.5 and 1 mm thicknesses was lower than that of the enamel.

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Color match of a feldspathic ceramic CAD-CAM material for ultrathin laminate veneers as a function of substrate shade, restoration color, and thickness

Cited by 32 publications

References 26 publications

Color Aspect of Monolithic Zirconia Restorations: A Review of the Literature

Color Aspect of Monolithic Zirconia Restorations: A Review of the Literature

Effect of porcelain thickness and translucency on the final shade of IPS e.max CAD overlaying a dark substrate.

The effect of ceramic thickness on opalescence

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