Occlusal Veneers on Posterior Teeth, Restoration of Posterior Teeth
Conditions
Keywords
occlusal veneer, direct occlusal veneer, clinical validation study, split-mouth clinical trial
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.
Interventions
PROCEDUREIndirect occlusal veneer (Occlusal veneer of lithium disilicate)
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.
PROCEDUREDirect occlusal veneer ( Occlusal Veneer of Composite resin)
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.
Sponsors
Ain Shams University
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)
Intervention model description
Split-mouth design, one side (right/left posterior tooth) will be restored with a direct occlusal veneer (occlusal veneer of direct composite resin) and the other side (right/left posterior tooth) will restored with an indirect occlusal veneer (occlusal veneer of lithium disilicate).
Eligibility
Sex/Gender
ALL
Age
25 Years to 35 Years
Healthy volunteers
No
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| 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. |
Countries
Egypt
Outcome results
None listed