Color Stability of Dental Ceramics, Dental Restoration Staining, Khat Chewing Effects, Zirconia Restorations
Conditions
Keywords
Multilayer Zirconia, Feldspathic Veneered Zirconia, Split-Mouth Study, Spectrophotometer, Patient Satisfaction
Brief summary
This study aims to evaluate and compare the impact of khat chewing on the color stability and patient satisfaction of multilayer zirconia and feldspathic veneered zirconia restorations. A split-mouth clinical trial design is utilized to assess color changes using a spectrophotometer and patient satisfaction via a structured questionnaire over the follow-up period.
Interventions
DEVICEMultilayer Zirconia Crowns
Multilayered zirconia restorations placed in one arch.
DEVICEFeldspathic Veneered Zirconia Crowns
Feldspathic veneered zirconia Restorations Placed in the opposing arch.
Sponsors
Thamar University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)
Intervention model description
This is a split-mouth clinical trial. Each participant receives both restoration types simultaneously on the same side: multilayer zirconia in one arch (maxillary or mandibular) and feldspathic veneered zirconia in the opposing arch, assigned randomly.
Eligibility
Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
Yes
Inclusion criteria
1. Age \> 18 years old. 2. Participants required crowns with proper endodontic treatment. 3. Participants with stable normal occlusion. 4. Khat chewer. 5. Participants required crowns for posterior teeth (premolar and molar) in the side of khat chewing. 6. Participants with extensive decay, cracks, or large restorations that necessitate a crown. 7. Participants wishing to improve the appearance of discolored or damaged teeth may be suitable candidates for crowns. 8. Good oral hygiene. 9. Availability for follow-up
Exclusion criteria
1. Participants with high caries index. 2. Participants with parafunctional habits as clenching/bruxism. 3. Severe periodontal disease. 4. Participants not indicated for crowns. 5. Allergy to materials.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Color stability | Baseline, 3 months, and 6 months | Assessment of color change (delta E) of the restorations measured using a spectrophotometer. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Patient Satisfaction | 6 months | Evaluation of patient satisfaction with aesthetic appearance and overall restoration outcome measured using a standardized questionnaire or Visual Analog Scale (VAS). |
Countries
Yemen
Outcome results
None listed