Purpose:The present follow-up study was carried out to evaluate the performance of
Class II Cerec inlays after 10 years of clinical service. Materials and Methods:Sixty-six
Class II CAD/CAM ceramic inlays were placed in 27 patients. Each patient received at
least one inlay luted with a dual-cured resin composite and one inlay luted with a
chemically cured resin composite. At the 10-year recall, 25 (93%) patients with 61 (92%)
inlays were available for evaluation using a slight modification of the USPHS criteria.
Results:Fifty-four (89%) of the 61 inlays reevaluated still functioned well at the 10-year
recall. During the follow-up period, seven (11%) of the inlays required replacement
because of: four inlay fractures, one cusp fracture, endodontic problems in one case,
and postoperative symptoms in one case. All the replaced inlays had been luted with
the dual-cured resin composite. The fractured inlays were all placed in molars. The
estimated survival rate after 10 years was 89%, 77% for the dual-cured resin
composite–luted inlays and 100% for the chemically cured resin composite–luted ones.
The difference was statistically significant. Conclusion:Patient satisfaction with and
acceptance of the Cerec inlays were high, and the performance after 10 years of clinical
service was acceptable, especially regarding the inlays luted with the chemically cured
resin composite. The properties of the luting agents seem to affect the longevity of the
type of ceramic inlays evaluated. Int J Prosthodont 2004;17:241–246.