Posterior CAD/CAM Cobalt-chromium Alloy Single Crowns: 4-year Prospective Clinical Study
- Conditions
- Single Tooth Lost
- Interventions
- Other: Periodontal parametersDevice: Co-Cr single crown
- Registration Number
- NCT02956174
- Lead Sponsor
- Federico II University
- Brief Summary
Objectives - To evaluate the 4-year clinical outcomes of ceramic veneered Computer Aided Design/Computer Aided Manufacturing (CAD/CAM) Co-Cr single crowns supported by natural teeth in posterior regions.
Material and methods - Eighty-nine patients were provided with 120 ceramic veneered CAD/CAM Co-Cr single crowns replacing either premolars and molars. Specific inclusion criteria were needed and tooth preparations were standardized and performed by 2 expert prosthodontists. CAD/CAM Co-Cr frameworks were fabricated and veneered with ceramics. The restorations were cemented using a eugenol-free zinc oxide luting agent. The patients were recalled after 1, 6, 12, 24, 36 and 48 months. The survival and success of the restorations were evaluated. The technical and esthetic outcomes were examined using the United States Public Health Service criteria. The biologic outcomes were analyzed at abutment and contralateral teeth and descriptive statistics were performed.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 89
Not provided
Not provided
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Contralateral sound tooth Periodontal parameters Contralateral sound tooth Co-Cr single crown Periodontal parameters Co-Cr single crown Co-Cr single crown Co-Cr single crown Co-Cr single crown
- Primary Outcome Measures
Name Time Method Survival percentage 4 years Kaplan Meier analysis of survival of the prostheses
- Secondary Outcome Measures
Name Time Method