RecruitingNot Applicable

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

Egypt10 participantsStarted 2025-06-02

Plain-language summary

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

Who can participate

Age range

18 Years – 50 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Exclusion criteria

. 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 -

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Patient Satisfaction

Timeframe: 24 month

Trial details

NCT IDNCT07113873

SponsorCairo University

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2026-01-02

Contact for this trial

Gihan El naggar Professor, PhD

01117676668 gihan.abdelhadyelnaggar@dentistry.cu.edu.eg

View on ClinicalTrials.gov More Ultra Translucent Zirconia trials