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International Journal of Computerized Dentistry



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Int J Comput Dent 18 (2015), No. 2     16. June 2015
Int J Comput Dent 18 (2015), No. 2  (16.06.2015)

Page 147-161, PubMed:26110927, Language: English/German

Clinical performance of chairside CAD/CAM feldspathic ceramic posterior shoulder crowns and endocrowns up to 12 years
Otto, Tobias / Mörmann, Werner H.
In 55 patients, 25 endocrowns (test) and 40 shoulder crowns (control) were produced chairside in a private practice using the Cerec 3 (CAD/CAM) method and Vita Mark II feldspathic ceramic. The crowns were examined at baseline and after up to 12 years using modified USPHS criteria. The survival estimate was assessed by Kaplan-Meier analysis. The 12 years survival estimate of the shoulder crowns was 95% on molars and 94.7% on premolars. Endocrowns showed 90.5% survival on molars and 75% on premolars. Statistically, the differences between the survival estimates were not significant (P > 0.05). The longevity of Vita Mark II Cerec 3 shoulder crowns on molars and premolars, as well as of endocrowns on molars, proved to be - for private practice - a very acceptable result, while the premolar endocrowns tended to show a higher risk for failure.

Keywords: CAD/CAM, posterior endocrowns, survival estimate, shoulder crowns, feldspathic ceramic