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Aim of the study was to evaluate the color stability of lithium disilicate ceramic veneers and zirconia reinforced lithium silicate ceramic veneers by using two different types of resin cements including light cured and dual cured cements.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Livento press veneers luted with dual cured resin cement | Experimental |
| |
| Livento press veneers luted with light cured resin cement | Active Comparator |
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| Celtra duo veneers luted with dual cured resin cement | Experimental |
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| Celtra duo veneers luted with light cured resin cement | Active Comparator |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Livento press veneers luted with dual cured resin cement | Other | Veneers will be fabricated using Lithium disilicate (Livento® Press) ceramic and luted using Bifix QM dual cured cement |
| Measure | Description | Time Frame |
|---|---|---|
| Color stability assessment | VITA Easyshade® Advance spectrophotometer will be used to measure the shade on the CIELab system, which defines color on 3 axes: L*, lightness, ranging from 0 (black) to 100 (white); and a* and b*, chromatic characteristics ranging from red (+a*) to green (-a*) and yellow (+b*) to blue (-b*) The color will be measured 3 times, and the mean L*, a*, and b* values will be calculated and used to measure color change (delta E) | up to 12 months |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Faculty of Dentistry, Alexandria University | Alexandria | Egypt |
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| Livento press veneers luted with light cured resin cement | Other | Veneers will be fabricated using Lithium disilicate (Livento® Press) ceramic and luted using Bisco choice 2 light cured cement |
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| Celtra duo veneers luted with dual cured resin cement | Other | Veneers will be fabricated using Zirconia-reinforced lithium silicate (Celtra® Press) ceramic and luted using Bifix QM dual cured cement |
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| Celtra duo veneers luted with light cured resin cement | Other | Veneers will be fabricated using Zirconia-reinforced lithium silicate (Celtra® Press) ceramic and luted Bisco choice 2 light cured cement |
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