Clinical Evaluation of Resin Matrix Ceramic Posterior Crowns
ConditionDental Materials
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age20-80
SponsorUniversidad Complutense de Madrid
About this trial
The objectives of the present prospective randomized clinical study are to evaluate and to compare the survival and success rates, possible biological and technical complications, and the clinical performance of metal-ceramic, monolithic zirconia and resin-matrix posterior crowns.
The null hypothesis is that no differences would be found between the parameters studied for each type of restoration.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
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 --
Disqualifiers
Patients who present reduced crown length (less than 3 mm occlusogingival height
Poor oral hygiene, high caries activity, active periodontal disease or bruxism.
Trial design
Design model
Parallel
Treatments tested in this trial
Resin-matrix
Procedure/Surgeryposterior crowns
Monolithic zirconia
Procedure/Surgeryposterior crowns
Metal-ceramic
Procedure/Surgeryposterior crowns
Treatment groups
90 Participants
are divided into 3 treatment groupsGroup A: Resin-matrix ceramicExperimental treatment 1 intervention
Group B: Monolithic zirconiaActive comparator 1 intervention
Group C: Metal-ceramicActive comparator 1 intervention
Trial outcomes
Primary outcomes
1
Survival and success rates
Survival and success rates with Kaplan Meier method
Time frame
3 yearsSecondary outcomes
1
Quality of restorations at baseline
The restorations will be assessed using the California Dental Association's assessment system, for the surface and color, anatomic form, and margin integrity.
Time frame
Baseline2
Quality of restorations at 1 year
The restorations will be assessed using the California Dental Association's assessment system, for the surface and color, anatomic form, and margin integrity.
Time frame
1 year3
Quality of restorations at 2 years
The restorations will be assessed using the California Dental Association's assessment system, for the surface and color, anatomic form, and margin integrity.
Time frame
2 years4
Quality of restorations at 3 years
The restorations will be assessed using the California Dental Association's assessment system, for the surface and color, anatomic form, and margin integrity.
Time frame
3 yearsSponsors and contacts
Click on the lead sponsor to view all of their trials.
Universidad Complutense de Madrid
Lead sponsor
BEGO GmbH
Collaborator
Source ClinicalTrials.gov