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Purpose: This systematic review aimed to report and explore the survival of dental
veneers constructed from non-feldspathic porcelain over 5 and 10 years. Materials
and Methods: A total of 4,294 articles were identified through a systematic search
involving all databases in the Cochrane Library, MEDLINE (OVID), EMBASE, Web of
Knowledge, specific journals (hand-search), conference proceedings, clinical trials
registers, and collegiate contacts. Articles, abstracts, and gray literature were sought
by two independent researchers. There were no language limitations. One hundred
sixteen studies were identified for full-text assessment, with 10 included in the analysis
(5 qualitative, 5 quantitative). Study characteristics and survival (Kaplan-Meier estimated
cumulative survival and 95% confidence interval [CI]) were extracted or recalculated.
A failed veneer was one which required an intervention that disrupted the original
marginal integrity, had been partially or completely lost, or had lost retention more than
twice. A meta-analysis and sensitivity analysis of Empress veneers was completed, with
an assessment of statistical heterogeneity and publication bias. Clinical heterogeneity
was explored for results of all veneering materials from included studies. Results:
Within the 10 studies, veneers were fabricated with IPS Empress, IPS Empress 2,
Cerinate, and Cerec computer-aided design/computer-assisted manufacture (CAD/
CAM) materials VITA Mark I, VITA Mark II, Ivoclar ProCad. The meta-analysis showed
the pooled estimate for Empress veneers to be 92.4% (95% CI: 89.8% to 95.0%) for
5-year survival and 66% to 94% (95% CI: 55% to 99%) for 10 years. Data regarding
other non-feldspathic porcelain materials were lacking, with only a single study each
reporting outcomes for Empress 2, Cerinate, and various Cerec porcelains over 5
years. The sensitivity analysis showed data from one study had an influencing and
stabilizing effect on the 5-year pooled estimate. Conclusion: The long-term outcome
(> 5 years) of non-feldspathic porcelain veneers is sparsely reported in the literature.
This systematic review indicates that the 5-year cumulative estimated survival for
etchable non-feldspathic porcelain veneers is over 90%. Outcomes may prove clinically
acceptable with time, but evidence remains lacking and the use of these materials for
veneers remains experimental. Int J Prosthodont 2013;26:111–124. doi: 10.11607/ijp.3202
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