Wear of Enamel Antagonist to Two Different Types of Monolithic Zirconia Monolithic Zirconia

Study Overview
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Brief Summary
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The aim of the present study is to evaluate the wear of enamel opposed by Newly Introduced Gradient Monolithic Zirconia compared to that of enamel opposed by Full Strength Monolithic Zirconia

Detailed Description
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The aim of the present study is to evaluate the wear of enamel opposed by Newly Introduced Gradient Monolithic Zirconia compared to that of enamel opposed by Full Strength Monolithic Zirconia Teeth preparation and impressions, placement and permanent cementation of the final restoration using resin cement, and optical scanning of both the restoration and the opposing tooth. Follow up postoperatively after six and twelve months, and optical scanning of both the restoration and the opposing tooth.

Official Title
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Wear of Enamel Antagonist to Two Different Types of Monolithic Zirconia: A Randomized Clinical Trial

Conditions
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Wear, Occlusal

Intervention / Treatment
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* Procedure: Newly Introduced Gradient Monolithic Zirconia
* Procedure: Full Strength Monolithic Zirconia


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: - All subjects are required to be: From 18-50 years old, be able to read and sign the informed consent document. Have no active periodontal or pulpal diseases, have teeth with good restorations. Psychologically and physically able to withstand conventional dental procedures. Patients planned for a single coverage restoration in the posterior area. Patients with a natural (not crowned) opposing antagonist. Able to return for follow-up examinations and evaluation. Exclusion Criteria: Patient less than 18 or more than 50 years 2. Patients with severe clenching or bruxing habits. 3. Patient with active resistant periodontal diseases 4. Patients with poor oral hygiene and uncooperative patients 5. Pregnant women 6. Patients in the growth stage with partially erupted teeth 7. Psychiatric problems or unrealistic expectations 8. Lack of opposing dentition at the area of interest. 9. Presence of dental prosthesis in the opposing arch at the area of interest.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 50 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

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 |
| --- | --- |
| Other: tested material<br>Newly Introduced Gradient Monolithic Zirconia (Intervention) | Procedure: Newly Introduced Gradient Monolithic Zirconia<br>* Fabrication of full-coverage crowns over posterior teeth using Newly Introduced Gradient Monolithic Zirconia to measure wear<br>|
| Active Comparator: comparator material<br>Full Strength Monolithic Zirconia (Comparator) | Procedure: Full Strength Monolithic Zirconia<br>* Fabrication of full-coverage crowns over posterior teeth using Full Strength Monolithic Zirconia to measure wear<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Enamel wear of teeth opposing the restorations to be tested opposing to tested restorations | measured by Geomagic professional software | one year | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Wear of restorations to tested opposed to natural teeth | measured by Geomagic professional software | one year |