Only 9 small RCTs were included in this Cochrane review of metal-free materials for prosthodontic restorations providing insufficient evidence to support or refute the effectiveness of metal-free materials for fixed prosthodontic treatment over metal-ceramic or other type of standard restorations.
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The aim of this study was to evaluate the clinical outcome of shrinkage-free ZrSiO4-ceramic full- coverage crowns on premolars and molars in comparison with conventional gold crowns over a 5-year period. Invited patents who required posterior crowns were randomised to receive either a shrinkage-free ZrSiO4-ceramic crown (test group) or a gold crown (control group). The [read the full story…]
