The Comparative Evaluation of the Translucency of Crowns Fabricated with Three Different All-Ceramic Materials: An in Vitro Study

Sravanthi, Y.; Ramani, Y.V.; Rathod, Asha; Ram, Sabita M; Turakhia, Hetal

doi:10.7860/jcdr/2015/12069.5559

Cited by 15 publications

(13 citation statements)

References 18 publications

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“…To achieve an acceptable masking ability, the zirconia coping thickness may be at least 1 mm . Masking a dark substrate with a zirconia coping needs a lower thickness than that with a veneering ceramic due to the lower translucency level of zirconia ceramics compared to veneer ceramics . Sinmazisik et al evaluated the effects of zirconia coping thickness (0.3, 0.5, 0.7 mm) and veneering ceramic thickness (1 and 1.5 mm) on the color of zirconia‐based restorations and expressed that an increase in the zirconia coping thickness caused an increase in the L * value and a decrease in the a * and b * values; however, the total ceramic thickness did not affect the final shade of the restoration .…”

Section: Zirconia Copingmentioning

confidence: 99%

Color in Zirconia‐Based Restorations and Related Factors: A Literature Review

Tabatabaian

2018

Journal of Prosthodontics

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Zirconia ceramic is a popular trend in esthetic and restorative dentistry. Computer-aided design/computer-aided manufacturing (CAD/CAM) systems have been well developed to fabricate zirconia frameworks and restorations with acceptable mechanical properties. Zirconia ceramics have excellent optical characteristics; however, achieving optimal esthetic outcomes with zirconia-based restorations is still challenging due to multiple effective factors on the final color. These factors are different layers of a zirconia-based restoration and its underlying structures including: dental substrate, cement, zirconia coping, veneering ceramic, and glaze. Moreover, the laboratory procedure of these restorations' fabrication is another effective factor on the resultant color. Unpredictable esthetic results may be obtained without estimation of the role of each factor and its effect on the final color. This review discussed the color aspect of zirconia-based restorations according to these factors and based on the literature. In the past decade, investigators have been concerned with the shade reproduction with zirconia-based restorations; however, there are no sufficient clinical guidelines on how to reproduce the appearance of natural teeth with these restorations. Zirconia-based restorations have presented a new chance for accomplishing optimum esthetics. Nonetheless further investigations are needed on these restorations to establish clinical guidelines on esthetics.

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Section: Zirconia Copingmentioning

confidence: 99%

Color in Zirconia‐Based Restorations and Related Factors: A Literature Review

Tabatabaian

2018

Journal of Prosthodontics

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“…This is a clinically relevant issue, since the properties of light-cured resin-based materials could change depending on the ceramic type and thickness (13,22). Several factors can influence the translucency of ceramic restorations, such as shade, thickness, surface roughness, polishing, volume fraction of porosity and crystalline phase (23). A recent systematic review and meta-analysis evaluated how variations in thickness of lithium disilicate restorations influenced the degree of conversion of the resin cements.…”

Section: Discussionmentioning

confidence: 99%

Color Stability of Ceramic Veneers Luted With Resin Cements and Pre-Heated Composites: 12 Months Follow-Up

et al. 2020

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The objective was to evaluate the color stability of ceramic veneers luted with resin cements and pre-heated composite resins (60oC) for 12 months, and determine the degree of conversion (DC) of the luting agents. Two resin cements (AllCem Veneer, light-cured (LRC) and AllCem, dual-cured (DRC)] and three composite resins [Z100 (MNCR-minifilled), Herculite Classic (MHCR-micro-hybrid) and Durafill (MCCR-microfilled)] were used for cementing 0.8-mm-thick lithium-silicate glass-ceramic laminates (Suprinity, shade B2-HT, Vita) on bovine enamel (n=10). The specimens were stored at 37oC in distilled water. CIELab parameters were determined at 24h after luting (baseline), 7, 30, 90, 180 days and 12 months. Three specimens were prepared for DC evaluation, performed by micro-Raman spectroscopy. Data were analyzed by ANOVA and Tukey’s test (a=5%). For ΔEab and ΔE00, there were significant differences for luting material (p<0.001), time (p<0.001), and double interaction (p<0.001). The groups cemented with MHCR (1 year), MCCR (90 days and 1 year) and MCCR-PH (1 year) were the ones with ΔE values greater than the acceptability threshold. All other groups maintained their ΔE lower than the acceptability threshold after 1 year in distilled water. Regarding DC, there were no significant differences (p=0.127) among the materials. Non-significant negative correlations were observed between the mean ΔEab and DC (R=-0.65) and ΔE00 and DC (R=-0.64). A significant positive correlation was observed mean ΔEab and ΔE00 (R=0.99). It was concluded that the different luting agents influenced the final color of the restorations. The heating of the composite resins did not affect their DC.

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“…In dentistry, the monolithic [yttria (Y2O3)-stabilized tetragonal zirconia (ZrO2) polycrystalline] (Y-TZP) ceramics have recently gained popularity, thanks to their good biocompatibility, aesthetic features, high strength and toughness, semi-translucency, radiopacity properties and lowered costs [1][2][3][4][5][6][7][8] . However, light transmission still remains a major drawback in those ceramics [9][10][11][12][13][14][15] . When restoring the anterior teeth with crowns or fixed dental prostheses, ZrO2's high opacity is a problem 4,5) .…”

Section: Introductionmentioning

confidence: 99%

Factors affecting the translucency of monolithic zirconia ceramics: A review from materials science perspective

Pekkan

Bayındır

et al. 2020

Dent. Mater. J.

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The use of monolithic [yttria (Y2O3)-stabilized tetragonal zirconia (ZrO2) polycrystalline] (Y-TZP) ceramics to restore teeth is expanding in dentistry. However, there are still some problems about color matching and the translucency of these ceramics. The employment of Y-TZP ceramics in aesthetically critical regions is questionable due to the insufficient translucency and opacity of the restorations. The objective of this review was to assess the factors affecting the translucency of monolithic Y-TZP ceramics for a better understanding the relevant parameters in restorations. The translucency of polycrystalline ceramics is a complex phenomenon. Apprehending the translucency regarding ceramics requires their knowledge of physical, chemical and microstructural characteristics with the light interactions among them.

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The Comparative Evaluation of the Translucency of Crowns Fabricated with Three Different All-Ceramic Materials: An in Vitro Study

Cited by 15 publications

References 18 publications

Color in Zirconia‐Based Restorations and Related Factors: A Literature Review

Color in Zirconia‐Based Restorations and Related Factors: A Literature Review

Color Stability of Ceramic Veneers Luted With Resin Cements and Pre-Heated Composites: 12 Months Follow-Up

Factors affecting the translucency of monolithic zirconia ceramics: A review from materials science perspective

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