Endodontically Treated Teeth Clinical Trial
Official title:
One Year Clinical Evaluation of New Gradient Technology Monolithic Zirconia (5Y-TZP/3Y-TZP) Crowns in Dental Esthetic Zone With Vertical Versus Conventional Preparation Techniques (Randomized Clinical Trial)
NCT number | NCT04738513 |
Other study ID # | 351020 |
Secondary ID | |
Status | Recruiting |
Phase | N/A |
First received | |
Last updated | |
Start date | March 1, 2021 |
Est. completion date | July 1, 2022 |
The aim of this study is to evaluate the clinical behavior of zirconia crowns in dental esthetic zone with vertical versus conventional preparation techniques using a new gradient technology monolithic zirconia (5Y-TZP/3Y-TZP).
Status | Recruiting |
Enrollment | 40 |
Est. completion date | July 1, 2022 |
Est. primary completion date | March 1, 2022 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 21 Years to 50 Years |
Eligibility | Inclusion Criteria: 1. From 21-50 years old, be able to read and sign the informed consent document. 2. Have no active periodontal or pulpal diseases, have teeth with good restorations. 3. Psychologically and physically able to withstand conventional dental procedures. 4. Patients with teeth problems indicated for all ceramic crowns in esthetic zone; 1. Badly decayed teeth 2. Teeth restored with large filling restorations 3. Endodontically treated teeth 4. Malformed teeth 5. Malposed teeth (Tilted, over-erupted, rotated, etc.) 5. Able to return for follow-up examinations and evaluation. 6. Thick gingival biotype. Exclusion Criteria: 1. Patient less than 21or more than 50 years. 2. Patient with active resistant periodontal diseases. 3. Patients with poor oral hygiene and uncooperative patients. 4. Pregnant women. 5. Patients in the growth stage with partially erupted teeth. 6. Psychiatric problems or unrealistic expectations. 7. Patient with periodontal problems. 8. Patients with malocclusion or parafunctional habits. |
Country | Name | City | State |
---|---|---|---|
Egypt | Cairo university | Cairo |
Lead Sponsor | Collaborator |
---|---|
Cairo University |
Egypt,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Marginal integrity | Measured by using Modified United States Public Health Service criteria (USPHS criteria)
Alpha (A) the explorer does not catch when drawn across the surface of the restoration toward the tooth, or, if the explorer does not catch, there is no visible crevice along the periphery of the restoration (visual inspection explorer) Bravo (B) the explorer catches and the is visible evidence of the crevice, which the explorer penetrates, indicating that the edge of the restoration does not adapt closely to the tooth structure. The dentin and/or the base is not exposed, and the restoration is not mobile ( visual inspection and explorer) Charlie (C) the explorer penetrates crevice defect extended to the dento-enamel junction (explorer) |
1 year | |
Secondary | Gingival discoloration | Measured by using Modified United States Public Health Service criteria (USPHS criteria)
Alpha (A) None, Bravo (B) Slight discoloration, removable by finishing, Charlie (C) Discoloration, localized not removable, Delta (D) Strong discoloration in major parts of the margin not removable |
1 year | |
Secondary | Gingival inflammation | Measured by using Modified United States Public Health Service criteria (USPHS criteria) Alpha (A) Non, Bravo (B) Slight, Charlie (C) Moderate, Delta (D) Severe | 1 year | |
Secondary | Restoration color stability | Measured by using Modified United States Public Health Service criteria (USPHS criteria) Alpha(A) No change, Bravo(B) change in comparison to baseline condition | 1 year | |
Secondary | Secondary caries | Measured by using Modified United States Public Health Service criteria (USPHS criteria) Alpha (A) Non, Bravo (B) Caries present | 1 year | |
Secondary | patient satisfaction | Measured by Visual Analog Scale VAS (Questionnaire) a numerical scale from ("0" unsatisfied to "10" satisfied) | 1 year |
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