Comparing two porcelain veneering systems for metal‑ceramic crowns and bridges
Clinical Performance of Metal Ceramic Fixed Dental Prostheses Using Two Porcelain Veneering Systems: A Randomized Clinical Trial
NA · Cairo University · NCT07029880
This will test whether two different porcelain veneering systems on metal‑ceramic fixed prostheses work well for adults who need crowns or bridges.
Quick facts
| Phase | NA |
|---|---|
| Study type | Interventional |
| Enrollment | 28 (estimated) |
| Ages | 21 Years to 80 Years |
| Sex | All |
| Sponsor | Cairo University (other) |
| Locations | 1 site (Cairo) |
| Trial ID | NCT07029880 on ClinicalTrials.gov |
What this trial studies
This randomized clinical trial will assign adult patients needing metal‑ceramic fixed prostheses to receive restorations veneered with either Vintage Pro or IPS Style Ceram, with all restorations cemented using BeautiLink SA resin cement. Participants must be at least 21 years old with stable abutment teeth and good oral hygiene, and they will be followed at scheduled visits to record clinical outcomes such as prosthesis survival, chipping, marginal integrity, and periodontal response. Standard clinical and radiographic assessments will be used to compare performance over the follow‑up period. The trial is conducted at Cairo University and requires participants to attend all follow‑up appointments for outcome measurement.
Who should consider this trial
Good fit: Adults aged 21 or older who need a fixed metal‑ceramic crown or bridge, have stable (nonmobile) abutment teeth with adequate crown/root ratio, and maintain good oral hygiene are ideal candidates.
Not a fit: Patients with active periodontal disease, parafunctional habits like bruxism, poor oral hygiene, certain systemic conditions, known allergies to the materials, pregnancy or nursing, or who cannot attend follow‑up visits are unlikely to benefit from participation.
Why it matters
Potential benefit: If successful, the results could help dentists choose a veneering system that yields more durable and reliable metal‑ceramic crowns and bridges.
How similar studies have performed: Porcelain‑veneered metal‑ceramic restorations are well established and prior comparisons of veneering systems have shown modest differences, though direct comparisons of these exact materials may be limited.
Eligibility criteria
Show full inclusion / exclusion criteria
1. Age ≥ 21 years 2. Vital or endodontically treated teeth 3. Abutments with no mobility 4. Abutments with adequate crown/root ratio more than 1:1 5. Willing and able to provide written informed consent 6. Ability to attend all follow-up appointments 7. Adequate oral hygiene as determined by the investigator And the following exclusion criteria: 1. Patients with active periodontal disease (probing depth \> 4mm, bleeding on probing) 2. Patients with parafunctional habits (e.g., bruxism confirmed by clinical examination) 3. Poor oral hygiene (plaque index \> 30%) 4. Pregnancy or nursing 5. Systemic diseases affecting treatment outcomes (e.g., uncontrolled diabetes, immunosuppression) 6. Known allergies to study materials (alloy, ceramic, or resin cement components) 7. Inability to comply with study requirements 8. Current participation in other dental clinical trials 9. Active orthodontic treatment
Where this trial is running
Cairo
- Cairo University — Cairo, Egypt (RECRUITING)
Study contacts
- Principal investigator: faculty of dentisry cairo university — Cairo University
- Study coordinator: inas adel mahmoud, lecturer
- Email: inas.adel@dentistry.cu.edu.eg
- Phone: +201008402645
How to participate
- Review the eligibility criteria above with your treating physician.
- Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
- Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions: Teeth Requiring Fixed Metal Ceramic Prosthesis