Assessment of Occlusal Veneer Restorations Performance in Posterior Teeth

Not Applicable

Not yet recruiting

• Conditions: Restoration of Posterior Teeth; Occlusal Veneers on Posterior Teeth

• Registration Number: NCT07088029
• Lead Sponsor: Ain Shams University

Brief Summary

The aim of the research is to study the mechanical behavior and clinical performance of veneers in posterior teeth. Clinical assessment and experimentation of two types of occlusal veneers will be conducted to evaluate their behavior.

Detailed Description

Occlusal veneers are restorations that restore the occlusal surface without axial wall involvement, allowing restoration of form, function, and esthetics of compromised or destroyed occlusal tooth structure in a conservative way as part of their treatment plan and the restorative process. The performance of occlusal veneer restorations is of paramount importance, as it determines the outcome and behavior of the final restoration. No ideal study has been conducted to evaluate teeth restored with occlusal veneer restorations. Evaluation must include all aspects of clinical performance, as some of the materials used in their fabrication have not been fully studied and should be studied to evaluate their clinical behavior using modified USPHS (United States Public Health Service) criteria. Which includes surface texture, anatomical form/wear, marginal integrity, marginal discoloration, secondary caries, color match and post-operative hypersensitivity.

Study Timeline

• Status Verified: 2025-04
• Study First Submitted: 2025-06-15
• Study First Submitted QC: 2025-07-24
• Last Update Submitted: 2025-07-24
• Study First Posted: 2025-07-28
• Last Update Posted: 2025-07-28
• Study Start: 2025-08-01
• Primary Completion: 2026-03-01
• Study Completion: 2026-08-01

Recruitment & Eligibility

• Status: NOT_YET_RECRUITING
• Sex: All
• Target Recruitment: 8

Inclusion Criteria

• Normal occlusion
• 25-35 years old
• Males or females having class II cavities indicated for occlusal veneers

Exclusion Criteria

• Parafunctional habits
• Abnormal occlusion
• Extremely high caries risk patients
• Temporomandibular problems

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Primary Outcome Measures

Name	Time	Method
Clinical assessment	1 year follow up	Clinical performance of each direct \& indirect occlusal veneer using modified USPHS (United States Public Health Service) criteria. Each criterion will be graded as either Alpha, Bravo and Charlie.; * Surface texture: aplha: smooth as surrounding enamel, beta: rougher than enamel, charlie: very rough; * Anatomical wear; alpha: Restoration is continuous with existing tooth anatomy, bravo: Restoration is slightly discontinuous, charlie: restoration is discontinuous.; * Marginal integrity: alpha: Closely adapted, beta: Visible crevice,, charlie Crevice in which dentin is exposed.; * Marginal discoloration: alpha: No discoloration, bravo: Superficial staining , charlie: Deep staining.; * Secondary caries: aplha: no caries, charlie: caries present.; * Color match: aplha:No mismatch between restoration and tooth. bravo: Slight mismatch, charlie: unacceptable mismatch; The clinical performance will be evaluated by blinded evaluators, the data will be collected in a table for analysis.