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NOT YET RECRUITING
NCT03779607
NA

Clinical Evaluation and Patient Satisfaction of Shade Matching Between Natural Teeth and Monolithic All-ceramic Crowns Fabricated From Two Materials

Sponsor: Cairo University

View on ClinicalTrials.gov

Summary

evaluation of color difference between zirconia reinforced lithium silicate (celtra press) VS lithium disilicate (Emax) in relation to natural tooth structure to determine which monolithic material will provide restoration with exact shade and optical properties as natural tooth structure.

Official title: Clinical Evaluation and Patient Satisfaction Ofshade Matching Between Natural Teeth and Monolithic All-ceramic Crowns Fabricated From Two Materials (Randomized Controlled Clinical Trial)

Key Details

Gender

All

Age Range

20 Years - 45 Years

Study Type

INTERVENTIONAL

Enrollment

10

Start Date

2026-11

Completion Date

2026-12

Last Updated

2026-10-09

Healthy Volunteers

No

Interventions

OTHER

Celtra Press

new class of zirconia-reinforced lithium silicate material available to labs for pressing. This unique material provides top aesthetics and is virtually impossible to tell apart from a natural tooth. Celtra Press is a multiphase ceramic consisting of a glass matrix and lithium disilicate crystals having a crystal length of about 1.5 µm plus nano-scale lithium phosphate . In addition to Li2O and SiO2, Celtra Press contains about 10% zirconia (ZrO2), which is dissolved completely in the glass phase rather than in crystalline form. Celtra Press is characterized by a high strength of about 500 MPa and excellent flow properties during pressing.