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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Remakes of Colorlogic and IPS Empress ceramic restorations in general practice.

PURPOSE: The aim of this article was to study frequencies and distribution of remakes of all-ceramic inlays/onlays, veneers, and crowns occurring before and after cementation. MATERIALS AND METHODS: A total of 2,069 sintered feldspathic ceramic restorations (Colorlogic) and 1,136 pressure-molded ceramic restorations ( IPS Empress 1 and 2) were produced during the study period by one dental laboratory. The laboratory gave an unqualified and unlimited guarantee for their ceramic restorations. The outcome variable was reports from the clinicians to the dental laboratory about any problems related to the restoration, necessitating remake. RESULTS: Problems occurring before cementation occurred in 4.4% of the restorations. Veneers were remade more frequently than the other types of restorations (6.6%). After cementation, the overall 2-year rate of remakes was 1%, indicating a survival rate of the ceramic restorations of 99%, with inlays/onlays exhibiting the highest (99.8%) and crowns the lowest (98.4%) rates. This difference in rates was significant. No significant differences in remakes between ceramics or tooth categories were found. CONCLUSION: There were few problems in a short- to medium-term perspective that, in the opinion of general practitioners, necessitated remakes of all-ceramic restorations.[1]


  1. Remakes of Colorlogic and IPS Empress ceramic restorations in general practice. Hekland, H., Riise, T., Berg, E. The International journal of prosthodontics. (2003) [Pubmed]
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