Patient Satisfaction and Clinical Performance of Ultra-translucent Multi-layer Monolithic Zirconia and Lithium Disilicate Ceramic Laminate Veneers. Randomized Control Clinical Trial

Recruiting now · Not applicable

Conditions studied: Ultra Translucent Zirconia

In brief

Despite of the improved esthetics of ultra-translucent zirconia, bonding between resin cement and zirconia is difficult to achieve because of their chemical inertness and lack of silica content. However, the effect of the bond strength with the new generation of high-translucent zirconia materials is not clear and further studies are needed. Kongkiatkamon, Suchada et al., (2023) The long-term bond strength of cubic zirconia was similar to 3Y-TZP zirconia and lithium disilicate ceramics and showed sufficient bond strength. A 5-mol% yttria-stabilized tetragonal Zr polycrystal showed high shear bond strength similar to Li disilicate glass-ceramic. Air blasting of Zr followed by primers and resin cements based on 10-MDP monomer has proven its efficiency in Zr-resin bonding. Both ultra-translucent 5Y-PSZ Zr and Li disilicate offer viable options for esthetic restorations on anterior teeth Adak et al. (2023),Elsisi et al. (2024) Currently, there is a lack of reports in the literature regarding the long-term clinical performance of ultra-translucent zirconia, especially considering its use in manufacturing monolithic veneers. Therefore, the purpose of the present clinical trial is to assess the validity of using ultra-translucent multi-layer zirconia ceramic veneer as an alternative to lithium disilicate ceramic veneer

Key facts

Study ID

NCT07113873

Run by

Cairo University

People needed

10

Starts

2025-06-02

Expected to finish

2026-12-31

Last updated by the study team

2026-01-06

Who can join

Age: 18 and older, up to 50. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• 1- Age between 18 and 50 years. 2. Absence of abnormal functional habits such as bruxism. 3. Good condition of gingival and periodontal tissues. 4. Good oral health. 5. A clear indication for patients for treatment with ceramic laminate veneers: Presence of diastema, moderate discolored dental restorations, slight modification of color in the discolored teeth, and modification of shape and sizes of the teeth.
• Patient commitment for attending follow up session

You may not qualify if…

• Age under 18 years
• Bad oral hygiene
• Dysfunctional habits and bruxism
• Periodontal diseases
• High risk of caries
• Inadequate enamel for bonding
• Extreme staining and color change in tooth -

Where it is running

• Cairo University — Cairo, Egypt (enrolling)

Full record on ClinicalTrials.gov

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