A 2-Year Clinical Follow-up Study of IPS Empress Ceramic Inlays

This study evaluated the clinical quality of 62 Empress restorations placed for 18 patients. Patients were evaluated for caries and fracture by two investigators at 7 and 26 months using the CDA quality evaluation criteria in addition to periodontal criteria. The results indicated a large number of excellent ratings for color and surface, but lower ratings for anatomic form and marginal integrity. The study is ongoing.