title: Clinical performance of chairside CAD/CAM feldspathic ceramic posterior shoulder crowns and endocrowns up to 12 years.
abstract: 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.
authors.forename: T
authors.initials: T
authors.lastname: Otto
authors.forename: W H
authors.initials: WH
authors.lastname: Mörmann
mesh_terms: D000134:Acid Etching, Dental / Q000379:methods; D000328:Adult; D000368:Aged; D000538:Aluminum Silicates / Q000737:chemistry*; D001641:Bicuspid; D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry; D003116:Color; D017076:Computer-Aided Design; D003442:Crowns; D018772:Dental Marginal Adaptation; D003774:Dental Plaque Index; D003776:Dental Porcelain / Q000737:chemistry*; D017267:Dental Prosthesis Design; D019232:Dental Restoration Failure; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008298:Maleates / Q000737:chemistry; D008689:Methacrylates / Q000737:chemistry; D008875:Middle Aged; D008963:Molar; D017060:Patient Satisfaction; D010512:Periodontal Index; D017680:Potassium Compounds / Q000737:chemistry*; D019279:Resin Cements / Q000737:chemistry; D013499:Surface Properties; D016019:Survival Analysis; D019231:Tooth Preparation, Prosthodontic / Q000379:methods; D016896:Treatment Outcome
chemical_list: C088247:ART Bond; D000538:Aluminum Silicates; D008298:Maleates; D008689:Methacrylates; D017680:Potassium Compounds; D019279:Resin Cements; D003776:Dental Porcelain; C016447:feldspar; C072541:Duo Cement; D017438:Bisphenol A-Glycidyl Methacrylate