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

Natural Optical Properties Clinical Trial

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)

Status Not yet recruiting

Clinical Trial 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.

Clinical Trial Description

eligible patients will be randomized in 2 equal group between study group (celtra press) and control group (Emax) .

Single tooth in esthetic zone requiring full coverage crown is prepared to receive an all ceramic crown of .

Grouping: The crowns will be divided into two groups:

I:Teeth receiving crowns fabricated from IPS emax press ( ivoclarvivadent) II:Teeth receiving crowns fabricatedfrom Celtrapress(dentsplysirona).

Shade will be measured using intraoral spectrophotometer and evaluated.

The color difference (ΔE ) will be calculated for each sample using the following equation:

ΔE =[(ΔL*)²+(Δa*)² + (Δb*)²]½

ΔE (perceptibility threshold ) will be evaluated for each group. ;

Related Conditions & MeSH terms

• Mouth, Edentulous
• Natural Optical Properties

• NCT number: NCT03779607
• Study type: Interventional
• Source: Cairo University
• Contact: mohamed bekhiet, master degree student
• Phone: 01224238808
• Email: mohamed.bekhet@dentistry.cu.edu.eg
• Status: Not yet recruiting
• Phase: N/A
• Start date: January 2019
• Completion date: December 2019