Single Tooth Lost Clinical Trial
Official title:
Posterior CAD/CAM Cobalt-chromium Alloy Single Crowns: 4-year Prospective Clinical Study
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.
n/a
Allocation: Non-Randomized, Intervention Model: Parallel Assignment, Masking: Single Blind (Outcomes Assessor), Primary Purpose: Treatment
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