Clinical Evaluation of the Fracture Resistance for E-max Cad and Vita Suprinity Laminate Veneers

Study Overview
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Brief Summary
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Patients need laminate veneer for their teeth usually use Emax CAD as an etchable ceramic. Yet fracture may occur so a stronger material is needed. Vita Suprinity is a recent material with glass ceramic enriched with zirconia (approx. 10% by weight) that offer practices and laboratories a high-strength, zirconia-reinforced lithium silicate ceramic (ZLS) and can be used to fabricate laminate veneers but the investigators have to know clinically it is fracture resistance, so the investigators are going to have Parallel groups in a randomized clinical trial.

Official Title
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Clinical Evaluation of the Fracture Resistance for E-max Cad and Vita Suprinity Laminate Veneers

Conditions
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Tooth Discoloration

Intervention / Treatment
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* Other: Vita suprinity
* Other: Emax CAD


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: All subjects are required to be: From 18-60 years old, and able to read and sign the informed consent document. Physically and psychologically able to tolerate conventional restorative procedures Have no active periodontal or pulpal diseases, have teeth with good restorations Patients with teeth problems indicated for laminate veneer (e.g. discoloration, fracture not involve more than 50% enamel loss, mild malposition, ….) Willing to return for follow-up examinations and evaluation Exclusion Criteria: Patients in the growth stage with partially erupted teeth Patient with fractured teeth of more than 50% enamel loss Patients with poor oral hygiene and motivation Pregnant women Psychiatric problems or unrealistic expectations Lack of opposite occluding dentition in the area intended for restoration

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 60 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Vita suprinity<br>Vita Suprinity is a recent material with glass ceramic enriched with zirconia (approx. 10 % by weight) that offer practices and laboratories a high-strength, zirconia-reinforced lithium silicate ceramic (ZLS). | Other: Vita suprinity<br>* New glass ceramic material<br>* Other names: zirconia-reinforced lithium silicate ceramic;|
| Active Comparator: Emax cad<br>lithium disilicate glass-ceramic which is etchable and proved to have good success rate if used for laminate venners | Other: Emax CAD<br>* standard etchable glass ceramic used for laminate venneers<br>* Other names: lithium disilicate glass ceramic;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Fracture resistance assessed by clinical evaluation using dental mirror and probe according to the modified united states public health criteria | clinical evaluation of Fracture resistance | 1 Year | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Patient satisfaction assessed using a Questionnaire | Questionnaire for patient satisfaction | 1 Year |