Assessment of Occlusal Veneer Restorations Performance in Posterior Teeth

Ain Shams University

Status: Not yet enrolling

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

Treatments: Procedure: Direct occlusal veneer ( Occlusal Veneer of Composite resin); Procedure: Indirect occlusal veneer (Occlusal veneer of lithium disilicate)

Study type: Interventional

Funder types: Other

Identifiers

NCT07088029

FDASU-Rec ID042514

Details and patient eligibility

About

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.

Full 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.

Enrollment: 8 estimated patients

Sex: All

Ages: 25 to 35 years old

Volunteers: No Healthy Volunteers

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

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Single Blind

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8 participants in 2 patient groups

Direct occlusal veneer ( Occlusal Veneer of Composite resin)

Experimental group

Description:

Split-mouth design, (right/left posterior tooth) will be restored with an occlusal veneer composite resin (Direct occlusal veneer). Directly fabricated occlusal veneers are a conservative approach, however, it requires a great skill from the operator to assure good margins and occlusal anatomy. Direct veneers are fabricated from composite resin and can be finished in a single visit, but longer chair time is required, in addition to the low wear resistance compared to ceramics. However, direct occlusal veneers have the benefit of resiliency close to that of natural dental tissue.

Treatment:

Procedure: Direct occlusal veneer ( Occlusal Veneer of Composite resin)

Indirect occlusal veneer (Occlusal veneer of lithium disilicate)

Active Comparator group

Description:

Split-mouth design, (right/left posterior tooth) will be restored with an Indirect occlusal veneer (Occlusal veneer of lithium disilicate). Indirectly fabricated occlusal veneers of lithium disilicate allow better control and design of the occlusal anatomy and proximal contacts, in addition to possessing better mechanical properties and fracture strength when compared to direct occlusal veneers. However, indirect occlusal veneers are lab fabricated, consequently, more clinical visits are required.

Treatment:

Procedure: Indirect occlusal veneer (Occlusal veneer of lithium disilicate)