Color; Change Teeth, Posteruptive
Conditions
Brief summary
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.
Interventions
Veneers will be fabricated using Lithium disilicate (Livento® Press) ceramic and luted using Bifix QM dual cured cement
Veneers will be fabricated using Lithium disilicate (Livento® Press) ceramic and luted using Bisco choice 2 light cured cement
Veneers will be fabricated using Zirconia-reinforced lithium silicate (Celtra® Press) ceramic and luted using Bifix QM dual cured cement
Veneers will be fabricated using Zirconia-reinforced lithium silicate (Celtra® Press) ceramic and luted Bisco choice 2 light cured cement
Sponsors
Study design
Eligibility
Inclusion criteria
* Good oral hygiene with compliance to perform strict oral hygiene measures (periodontal screening index 0-1). * Slight malposition. * Teeth with spacing. * Teeth with discoloration
Exclusion criteria
* Advanced periodontitis, gingivitis, or recession. * Abutments with subgingival restorations or root caries. * Parafunctional habits. * Undergoing orthodontic treatment. * Presence of orthodontic appliance. * Obvious dentition malalignment. * Mandibular prognathism. * Maxillary retrognathism. * Smokers.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Color stability assessment | up to 12 months | 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) |
Countries
Egypt