Precision of fit and clinical evaluation of all-ceramic full restorations followed between 0.5 and 5 years

Abstracts on this page have been chosen and edited by Dr Trevor Watts

Abstract

The cumulative 5 yr failure rate was 45% and patients were very satisfied with aesthetics and function.

Main

Naert I, van der Donck A et al. J Oral Rehabil 2005; 32: 51–57

This study comprised an in vitro investigation of marginal fit of 8 of these crowns, and a clinical investigation of 300 crowns placed by 16 operators in 165 patients. In 21 cases, single tooth implants were used. In the first part of the study, the mean vertical luting distance was 24 μm for glass ionomer and 29 μm for composite, which did not differ significantly from fit before luting, or between cements.

In the second part, the cumulative success rate at 5 yrs was 95.6%. According to the California Dental Association system, 72% were judged excellent for surface and colour at the last recall, and 78.5% for anatomical form. Replacement or correction was indicated on these grounds respectively for 1.5% and 0.5%. Most patients also judged restorations satisfactory on these grounds.