A comparative evaluation of the translucency of zirconias and lithium disilicate for monolithic restorations

Harada, Kosuke; Raigrodski, Ariel J.; Chung, Kwok Hung; Flinn, Brian D.; Doğan, Sami; Mancl, Lloyd

doi:10.1016/j.prosdent.2015.11.019

Cited by 186 publications

(183 citation statements)

References 42 publications

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“…The dentist’s choice and recommendation to the patient can depend on various patient and tooth factors, such as tooth location, esthetics, patient desires, masticatory factors, and patient finances [2,3,4]. …”

Section: Introductionmentioning

confidence: 99%

“…It is more translucent than zirconia [4], and can be used in the anterior region without adding a layer of veneering porcelain, which reduces the risk of porcelain chipping. Additionally, the glass matrix of lithium disilicate can be etched with hydrofluoric acid and chemically bonded to tooth structure with a silane primer and adhesive resin cement [10].…”

Section: Introductionmentioning

confidence: 99%

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Dentist material selection for single-unit crowns: Findings from the National Dental Practice-Based Research Network

Makhija

Lawson

Gilbert

et al. 2016

Journal of Dentistry

117

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Objectives Dentists enrolled in the National Dental Practice-Based Research Network completed a study questionnaire about techniques and materials used for single-unit crowns and an enrollment questionnaire about dentist/practice characteristics. The objectives were to quantify dentists’ material recommendations and test the hypothesis that dentist’s and practice’s characteristics are significantly associated with these recommendations. Methods Surveyed dentists responded to a contextual scenario asking what material they would use for a single-unit crown on an anterior and posterior tooth. Material choices included: full metal, porcelain-fused-to-metal (PFM), all-zirconia, layered zirconia, lithium disilicate, leucite-reinforced ceramic, or other. Results 1,777 of 2,132 eligible dentists responded (83%). The top 3 choices for anterior crowns were lithium disilicate (54%), layered zirconia (17%), and leucite-reinforced glass ceramic (13%). There were significant differences (p<0.05) by dentist’s gender, race, years since graduation, practice type, region, practice busyness, hours worked/week, and location type. The top 3 choices for posterior crowns were all-zirconia (32%), PFM (31%), and lithium disilicate (21%). There were significant differences (p<0.05) by dentist’s gender, practice type, region, practice busyness, insurance coverage, hours worked/week, and location type. Conclusions Network dentists use a broad range of materials for single-unit crowns for anterior and posterior teeth, adopting newer materials into their practices as they become available. Material choices are significantly associated with dentist’s and practice’s characteristics. Clinical Significance Decisions for crown material may be influenced by factors unrelated to tooth and patient variables. Dentists should be cognizant of this when developing an evidence-based approach to selecting crown material.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dentist material selection for single-unit crowns: Findings from the National Dental Practice-Based Research Network

Makhija

Lawson

Gilbert

et al. 2016

Journal of Dentistry

117

View full text Add to dashboard Cite

show abstract

“…1,2 However, achieving a natural appearance is more challenging with a metal-ceramic restoration than an all-ceramic restoration due tothe fact that metal copings prevent light transmission. 3,4 This has led to an increase in the use of non-metallic restorations such as zirconia-based restorations. 5 Zirconiacrowns combine the benefits of metal restorations, such as minimally invasive tooth preparation and simple cementation, with those of all-ceramic crowns, such as low thermal conductivity and adequate translucency.…”

Section: Introductionmentioning

confidence: 99%

The color masking ability of a zirconia ceramic on the substrates with different values

Tabatabaian

Sharif

Massoumi

et al. 2017

J Dent Res Dent Clin Dent Prospects

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Background. The color masking ability of a restoration plays a significant role in coveringa discolored substructure; however, this optical property of zirconia ceramics has not been clearly determined yet. The aim of this in vitro study was to evaluate the color masking ability of a zirconia ceramic on substrates with different values.Methods. Ten zirconia disk specimens,0.5 mm in thickness and 10 mm in diameter, were fabricated by a CAD/CAM system. Four substrates with different values were prepared, including: white (control), light grey, dark grey, and black. The disk specimens were placed over the substratesfor spectrophotometric measurements. A spectrophotometer measured the L*, a*, and b* color attributes of the specimens. Additionally, ΔE values were calculated to determine the color differences between each group and the control,and were then compared with the perceptional threshold of ΔE=2.6. Repeated-measures ANOVA, Bonferroni, and one-sample t-test were used to analyze data. All the tests were carried out at 0.05 level of significance.Results. The means and standard deviations of ΔE values for the three groups of light grey, dark grey and black were 9.94±2.11, 10.40±2.09, and 13.34±1.77 units, respectively.Significant differences were detected between the groups in the ΔE values (P<0.0001).The ΔE values in all the groups were more than the predetermined perceptional threshold(ΔE>2.6) (P<0.0001).Conclusion. Within the limitations of this study, it was concluded that the tested zirconia ceramic did not exhibit sufficient color masking ability to hide the grey and black substrates.

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“…1a). Ces produits sont intéressants pour les restaurations unitaires mais plus complexes à utiliser pour les restaurations plurales car le positionnement des différents éléments dans le disque demeure hasardeux et peut facilement se traduire par un dégradé dévié, notamment sur les restaurations plurales antérieures (6). En revanche, l'esthétique obtenue en unitaire est bluffante (Fig.…”

Section: Introductionunclassified

Zircone translucide & CFAO directe : une réponse pertinente pour de nombreuses situations cliniques

Casas

2017

Actual. Odonto-Stomatol.

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A comparative evaluation of the translucency of zirconias and lithium disilicate for monolithic restorations

Cited by 186 publications

References 42 publications

Dentist material selection for single-unit crowns: Findings from the National Dental Practice-Based Research Network

Dentist material selection for single-unit crowns: Findings from the National Dental Practice-Based Research Network

The color masking ability of a zirconia ceramic on the substrates with different values

Zircone translucide & CFAO directe : une réponse pertinente pour de nombreuses situations cliniques

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