Evaluation of different types of posterior dental crowns
Clinical Evaluation of Resin Matrix Ceramic and Zirconia Posterior Crowns
NA · Universidad Complutense de Madrid · NCT05707780
This study is testing which type of dental crown—resin-matrix ceramic, monolithic zirconia, or metal-ceramic—lasts longer and works better for people needing crowns in the back of their mouths.
Quick facts
| Phase | NA |
|---|---|
| Study type | Interventional |
| Enrollment | 90 (estimated) |
| Ages | 20 Years to 80 Years |
| Sex | All |
| Sponsor | Universidad Complutense de Madrid (other) |
| Locations | 1 site (Madrid) |
| Trial ID | NCT05707780 on ClinicalTrials.gov |
What this trial studies
This clinical evaluation aims to compare the survival and success rates of three types of posterior crowns: resin-matrix ceramic, monolithic zirconia, and metal-ceramic. A total of 60 patients requiring crowns in the posterior region will be randomly assigned to receive one of the three crown types. The study will assess biological and technical complications, as well as overall clinical performance over a period of three years. Experienced prosthodontists will standardize the preparation and placement of the crowns, ensuring consistent methodology across all participants.
Who should consider this trial
Good fit: Ideal candidates are patients needing a posterior crown on a vital tooth with healthy periodontal conditions.
Not a fit: Patients with poor oral hygiene, active periodontal disease, or insufficient crown length will not benefit from this study.
Why it matters
Potential benefit: If successful, this study could provide insights into the most effective crown materials, leading to improved patient outcomes and satisfaction.
How similar studies have performed: Previous studies have shown varying success rates for different crown materials, but this specific comparison of resin-matrix ceramic against zirconia and metal-ceramic is relatively novel.
Eligibility criteria
Show full inclusion / exclusion criteria
Inclusion Criteria: * One posterior tooth (molar or premolar) to be crowned, * Vital abutments or abutments with sufficient endodontic treatment * Abutment not crowned previously * Periodontally healthy abutments with no signs of bone resorption or periapical disease -- * Adequate occlusogingival height * Stable occlusion, and the presence of natural dentition in the antagonist arch. Exclusion Criteria: * Patients who present reduced crown length (less than 3 mm occlusogingival height * Poor oral hygiene, high caries activity, active periodontal disease or bruxism.
Where this trial is running
Madrid
- Faculty of Odontology — Madrid, Spain (RECRUITING)
Study contacts
- Principal investigator: MARIA JESUS SUAREZ, PhD — UNIVERSITY COMPLUTENSE OF MADRID
- Study coordinator: MARIA JESUS SUAREZ, PhD
- Email: mjsuarez@ucm.es
- Phone: 0034 913942029
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: Dental Materials, crowns, monolithic zirconia, resin matrix ceramic, clinical evaluation, survival