Effect of different coloring techniques and surface treatment methods on the surface roughness of monolithic zirconia

Giti, Rashin; Haghdoost, Shekoofeh; Ansarifard, Elham

doi:10.4103/1735-3327.280893

Cited by 16 publications

(14 citation statements)

References 33 publications

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“…Overall, the values of TP ranged from 18.82 and 14.20 for zirconia at TP (T1) and for Mark II at T3, respectively; these values coincided with those publications recorded for the materials used for inlays and veneer ceramic materials [17][18][19][22][23]. The ΔE 00 values at different time intervals were within the clinically acceptable range reported by previous studies [17][18]22,24]. The mean color changes were decreased at T3 (between 15 and 30 days) in parallel with previously reported values mentioned by (Koseoglu et [11,13,[17][18]22].…”

Section: Discussionsupporting

confidence: 87%

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Color Changes of Ceramic Materials Used for Inlay and Veneers Restorations after Staining with Different Time Intervals

Moaleem

Alamoudi²,

Aldhahri³

et al. 2021

JPRI

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Background: Stain color of CAD/CAM prosthetic materials is important for the long-term of these materials without affecting daily beverage consumption habits. Aims: To assess the influence of aging with Coca-Cola drinks on the color of the CAD/CAM materials used for inlay and veneer restoration over different time intervals. Methods: 48 specimens were fabricated from Vitablocs Mark II and zirconia CAD/CAM ceramic materials. Each group comprised 24 specimens with eight samples for every background (white [W], black [B], and gray). Baseline readings were taken by a spectrophotometer before staining (Baseline T0). After Coca-Cola staining and aging, the color measurement was repeated after 15 and 30 days (T1 and T2), while T3 was the difference between T2-T0. The data were analyzed with descriptive statistics, one-way ANOVA, and post hoc tests. Results: The ΔE00 color parameters of Mark II and zirconia materials were higher against the W background than other backgrounds. However, the zirconia materials recorded higher values than Mark II for the same parameters (L, a, and b) against the gray background during 15 and 30 days of immersion in Coca-Cola. Translucency parameters (TP) exhibited significant differences between ceramic types and immersion periods, with the TP values of zirconia being slightly higher than those of Mark II. The ΔE00 values for the three-time intervals were within clinically acceptable ranges. The ΔE00 values of both ceramic types at T3 were within 1.38–1.53 and 3.11–3.62 and lacked significant differences. Conclusions: Coca-Cola staining was obvious after 15 and 30 days of immersion and had a marked effect on the TP and ΔE00 of the tested CAD/CAM materials. Increasing the staining time resulted in a reduction in TP values at all time intervals. Zirconia samples had higher ΔE00 values than Mark II materials at different time periods. All of the colors of the tested materials had changed from B1 to different light colors in accordance with the Vita classical shade guide.

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Section: Discussionsupporting

confidence: 87%

“…where subscript B refers to the color coordinates against the B background and subscript W refers to those against the W background [17][18][19]. ΔE 00 is the color difference calculated on the basis of the color coordinate differences between two objects or between a restoration and a tooth/target.…”

Section: Color Measurementsmentioning

confidence: 99%

Color Changes of Ceramic Materials Used for Inlay and Veneers Restorations after Staining with Different Time Intervals

Moaleem

Alamoudi²,

Aldhahri³

et al. 2021

JPRI

View full text Add to dashboard Cite

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“…Surface roughness is one of the most important criteria that affects the biofilm accumulation on dental materials [ 21 , 32 ]. This study evaluated both R a and R z values because in case of equality of the R a values, less R z values imply smoother surface [ 33 ]. Although all the surface roughness values in this study were higher than the threshold (0.2 μm) that could eliminate the role of surface roughness in plaque adherence [ 34 , 35 ], they were below the limit for clinical undetectability of roughness (10 μm) [ 16 ].…”

Section: Discussionmentioning

confidence: 99%

Surface roughness, plaque accumulation, and cytotoxicity of provisional restorative materials fabricated by different methods

et al. 2021

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Fabricating method may affect the surface properties and biological characteristics of provisional restorations. This study aimed to evaluate the surface roughness, plaque accumulation, and cytotoxicity of provisional restorative materials fabricated by the conventional, digital subtractive and additive methods. Sixty-six bar-shaped specimens (2×4×10 mm) were fabricated by using provisional restorative materials through the conventional, digital subtractive and additive methods (n = 22 per group). Ten specimens of each group were used for surface roughness and plaque accumulation tests, 10 specimens for cytotoxicity assay, and 2 specimens of each group were used for qualitative assessment by scanning electron microscopy. The Ra (roughness average) and Rz (roughness height) values (μm) were measured via profilometer, and visual inspection was performed through scanning electron microscopy. Plaque accumulation of Streptococcus mutans and cytotoxicity on human gingival fibroblast-like cells were evaluated. The data were analyzed with one-way ANOVA and Tukey’s post hoc test (α = 0.05). Surface roughness, biofilm accumulation and cytotoxicity were significantly different among the groups (P<0.05). Surface roughness was significantly higher in the conventional group (P<0.05); however, the two other groups were not significantly different (P>0.05). Significantly higher bacterial attachment was observed in the additive group than the subtractive (P<0.001) and conventional group (P = 0.025); while, the conventional and subtractive groups were statistically similar (P = 0.111). Regarding the cytotoxicity, the additive group had significantly higher cell viability than the subtractive group (P = 0.006); yet, the conventional group was not significantly different from the additive (P = 0.354) and subtractive group (P = 0.101). Surface roughness was the highest in conventionally cured group; but, the additive group had the most plaque accumulation and lowest cytotoxicity.

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“…The blocks of VITA MII ceramic have fine constructed particles, and a different machining system to improve mechanical properties and strength [ 1 ]. These blocks were monochromatic or available in multi-shade layers that permit a shade gradient as well as improved translucency [ 1 , 5 , 6 ]. Other brands of polymer-infiltrated ceramics and resin nano-ceramics, based on their contents, have improved material properties.…”

Section: Introductionmentioning

confidence: 99%

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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Effect of different coloring techniques and surface treatment methods on the surface roughness of monolithic zirconia

Cited by 16 publications

References 33 publications

Color Changes of Ceramic Materials Used for Inlay and Veneers Restorations after Staining with Different Time Intervals

Color Changes of Ceramic Materials Used for Inlay and Veneers Restorations after Staining with Different Time Intervals

Surface roughness, plaque accumulation, and cytotoxicity of provisional restorative materials fabricated by different methods

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

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