Effects of Glazing Procedures on the Color Stability of Conventional and CAD/CAM Hybrid Ceramics: A Comparative Study

Ozyilmaz, Ozgun Yusuf; Özel, Gülsüm Sayın; Ahmet, Serra Bevek Oğuz

doi:10.4274/meandros.49369

Cited by 2 publications

(3 citation statements)

References 30 publications

(44 reference statements)

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“…So, all the recorded ΔE 00 values for the tested CAD/CAM restorative materials in both surfaces and coffee types were within the clinically acceptable range. For ΔE 00 values recorded at the end of 2 weeks, our findings were similar to values of previous results conducted with glazed specimens immersed in hot coffee by Özyılmaz et al, and Abu-Obidah et al, for the 3 tested types [ 35 , 40 ]; Aydın et al, for Vita-S and Vita-E [ 41 ]; and Colombo et al, as well as Quek et al, for Zirconia and Vita-E, respectively [ 15 , 42 ]. Among, the polished samples immersed in cold coffee in this study, the ΔE 00 values recorded were coincided with values documented by Abu-Obidah et al, for the 3 tested types [ 40 ]; Sarıkaya et al, for Vita-E, and Al Moaleem et al, for Vitablocs-MII and zirconia [ 21 , 34 ].…”

Section: Discussionsupporting

confidence: 91%

Assessment of Color Stainability of Computer-Aided Design and Computer-Aided Manufacturing (CAD/CAM) Ceramic Materials After Hot and Cold Coffee Immersion at Different Time Intervals

et al. 2021

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Background This spectrophotometric study assessed the color stability of CAD/CAM restorative materials with different exposed surfaces following staining by hot Arabic Qahwa and cold coffee. Material/Methods Ninety-six specimens were fabricated from 3 different CAD/CAM ceramic materials: Vita Suprinity (Vita-S), Vita Enamic (Vita-E), and Vitablocs Mark II (Vitablocs-MII). We divided 32 specimens for each group into glazed or polished surfaces, with 16 specimens in each group, then subdivided them according to staining materials: Arabic Qahwa and Frappuccino Cold Coffee. Color of specimens was measured during immersion in staining materials (BEFORE) as baseline with (Vita classic) and (L, a, b), for average color changes (ΔE 00 ), then remeasured after 2, 4, and 12 weeks, and described as 1 st , 2 nd , and 3 rd measurements for VITAPAN Classic shade and T1, T2, and T3 for ΔE 00 values using the CIE L*a*b* equation. We performed ANOVA and then post hoc testing. Results We found significant differences in ΔE 00 values during immersing in hot Arabic Qahwa and cold coffee for tested materials in glazed or polished specimens. Polished specimens of Vita-S and Vita-E had the highest color changing and staining compared to glazed surfaces. Vitablocs-MII had the best color stability through immersion periods. Moreover, there were changes in relation to VITAPAN Classic shade guide for both Vita-S and Vita-E specimens during different immersion periods. Conclusions Coffee caused staining and contamination of ceramic material. Values of ΔE 00 for tested ceramic materials were significantly different but were within the clinically acceptable range. Polished specimens showed higher staining; therefore, we highly recommend re-glazing of ceramic restorations to maintain color stability.

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Section: Discussionsupporting

confidence: 91%

Assessment of Color Stainability of Computer-Aided Design and Computer-Aided Manufacturing (CAD/CAM) Ceramic Materials After Hot and Cold Coffee Immersion at Different Time Intervals

et al. 2021

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“…On immersion in hot Arabic Qahwa and cold coffee, Δ E 00 values for tested materials in glazed or polished specimens varied significantly [ 16 ]. For Δ E 00 values recorded after 2 weeks, our results were comparable to those of previous studies conducted with glazed specimens immersed in hot coffee by AlMawash et al, Colombo et al, Özyılmaz et al, and Aydin et al [ 23 , 26 , 61 , 62 ]. However, our results differed from those of Yerliyurt and Sarikaya, Eldwakhly et al, Seyidaliyeva et al, and Aboushahba et al [ 10 , 63 – 65 ], as they did not observe maximum discoloration with Coca-Cola and coffee.…”

Section: Discussionsupporting

confidence: 90%

“…Thus, in order to express the degree of color and relative color changes of all the specimens, we used the “VITA Easy-Shade” spectrophotometer to measure color. Colors’ three-dimensional (3D) dimensions are numerically represented by CIELab values [ 37 , 61 ]. It is difficult to determine the average color change ΔE* value that is noticeable or clinically acceptable.…”

Section: Discussionmentioning

confidence: 99%

Comparison of the Degree of Staining of Computer-Aided Design-Computer-Aided Manufacture (CAD-CAM) Ceramic Veneers by Green Tea, Coffee, and Coca-Cola Using a Digital Spectrophotometer

Wadei

2023

Med Sci Monit

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Background The majority of dental professionals currently recognize lithium disilicate E-max ceramic veneers as a the most widely used, conservative, and effective cosmetic materials in dentistry. This study aimed to compare the degree of surface changes – roughness (Ra), depth (Rz), and mean color changes (Δ E 00 ) – of computer-aided design-computer-aided manufactured (CAD/CAM) ceramic veneers materials of varying thicknesses caused by staining by green tea, coffee, and Coca-Cola using digital spectrophotometer. Material/Methods This study was conducted at King Khalid University, College of Dentistry. Lithium disilicate glass ceramic (LDGC) material was used to create 60 rectangular slices using the CAD/CAM system. The material thickness and the type of beverage were measured. The specimens were immersed in beverages according to the manufacturer’s instructions. Specimen description and tomography were completed with a 3D noncontact surface metrology using interferometry. The “VITA Easy-Shade” spectrophotometer was used to measure Δ E 00 . It was recorded after 2 weeks for different material thicknesses after immersing samples in green tea, coffee, and Coca-Cola staining materials. Results Significant changes in ceramic thickness were found in Ra and Rz of 0.07 and 1.00 mm after 14 days of staining. Coca-Cola showed a significant difference in Ra and Rz with 1.00 mm thickness measurement compared to the 0.07 mm group with ≤ of 0.05, which was considered statistically significant. Highest Δ E 00 were recorded among samples stained by Coca-Cola, followed by coffee, for both thicknesses. Conclusions Those findings support previous studies using spectrophotometric analysis of staining of CAD-CAM ceramic veneers that Coca-Cola followed by coffee resulted in the greatest color Δ E 00 change.

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Effects of Glazing Procedures on the Color Stability of Conventional and CAD/CAM Hybrid Ceramics: A Comparative Study

Cited by 2 publications

References 30 publications

Assessment of Color Stainability of Computer-Aided Design and Computer-Aided Manufacturing (CAD/CAM) Ceramic Materials After Hot and Cold Coffee Immersion at Different Time Intervals

Assessment of Color Stainability of Computer-Aided Design and Computer-Aided Manufacturing (CAD/CAM) Ceramic Materials After Hot and Cold Coffee Immersion at Different Time Intervals

Comparison of the Degree of Staining of Computer-Aided Design-Computer-Aided Manufacture (CAD-CAM) Ceramic Veneers by Green Tea, Coffee, and Coca-Cola Using a Digital Spectrophotometer

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