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Computer-aided direct ceramic restorations: a 10-year prospective clinical study of Cerec CAD/CAM inlays and onlays.
Int J Prosthodont. 2002 Mar-Apr; 15(2):122-8.IJ

Abstract

PURPOSE

The objective of this follow-up study was to examine the performance of Cerec inlays and onlays in terms of clinical quality over a functional period of 10 years.

MATERIALS AND METHODS

Of 200 Cerec inlays and onlays placed in a private practice between 1989 and early 1991, 187 restorations were observed over a period of 10 years. The restorations were fabricated chairside using the Cerec-1 computer-aided design/manufacturing (CAD/CAM) method and Vita MK I feldspathic ceramic. An adhesive technique and luting composite resin were used for seating the restorations. After 10 years, the clinical performance of the restorations was evaluated using modified USPHS criteria. The results were used to classify success and failure.

RESULTS

According to Kaplan-Meier analysis, the success rate of Cerec inlays and onlays dropped to 90.4% after 10 years. A total of 15 (8%) failures were found in 11 patients. Of these failures, 73% were caused by either ceramic fractures (53%) or tooth fractures (20%). The reasons for the remaining failures were caries (20%) and endodontic problems (7%). The three-surface Cerec reconstructions were found to have the most failures.

CONCLUSION

The failure rate of 8% and the drop of the survival probability rate to 90.4% after 10 years of clinical service of Cerec-1 CAD/CAM restorations made of Vita MK I feldspathic ceramic appear to be acceptable in private practice. This is particularly true in light of the very high patient satisfaction.

Authors+Show Affiliations

toebu@bluewin.chNo affiliation info available

Pub Type(s)

Clinical Trial
Journal Article

Language

eng

PubMed ID

11951800

Citation

Otto, Tobias, and Sabatino De Nisco. "Computer-aided Direct Ceramic Restorations: a 10-year Prospective Clinical Study of Cerec CAD/CAM Inlays and Onlays." The International Journal of Prosthodontics, vol. 15, no. 2, 2002, pp. 122-8.
Otto T, De Nisco S. Computer-aided direct ceramic restorations: a 10-year prospective clinical study of Cerec CAD/CAM inlays and onlays. Int J Prosthodont. 2002;15(2):122-8.
Otto, T., & De Nisco, S. (2002). Computer-aided direct ceramic restorations: a 10-year prospective clinical study of Cerec CAD/CAM inlays and onlays. The International Journal of Prosthodontics, 15(2), 122-8.
Otto T, De Nisco S. Computer-aided Direct Ceramic Restorations: a 10-year Prospective Clinical Study of Cerec CAD/CAM Inlays and Onlays. Int J Prosthodont. 2002 Mar-Apr;15(2):122-8. PubMed PMID: 11951800.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Computer-aided direct ceramic restorations: a 10-year prospective clinical study of Cerec CAD/CAM inlays and onlays. AU - Otto,Tobias, AU - De Nisco,Sabatino, PY - 2002/4/16/pubmed PY - 2002/8/7/medline PY - 2002/4/16/entrez SP - 122 EP - 8 JF - The International journal of prosthodontics JO - Int J Prosthodont VL - 15 IS - 2 N2 - PURPOSE: The objective of this follow-up study was to examine the performance of Cerec inlays and onlays in terms of clinical quality over a functional period of 10 years. MATERIALS AND METHODS: Of 200 Cerec inlays and onlays placed in a private practice between 1989 and early 1991, 187 restorations were observed over a period of 10 years. The restorations were fabricated chairside using the Cerec-1 computer-aided design/manufacturing (CAD/CAM) method and Vita MK I feldspathic ceramic. An adhesive technique and luting composite resin were used for seating the restorations. After 10 years, the clinical performance of the restorations was evaluated using modified USPHS criteria. The results were used to classify success and failure. RESULTS: According to Kaplan-Meier analysis, the success rate of Cerec inlays and onlays dropped to 90.4% after 10 years. A total of 15 (8%) failures were found in 11 patients. Of these failures, 73% were caused by either ceramic fractures (53%) or tooth fractures (20%). The reasons for the remaining failures were caries (20%) and endodontic problems (7%). The three-surface Cerec reconstructions were found to have the most failures. CONCLUSION: The failure rate of 8% and the drop of the survival probability rate to 90.4% after 10 years of clinical service of Cerec-1 CAD/CAM restorations made of Vita MK I feldspathic ceramic appear to be acceptable in private practice. This is particularly true in light of the very high patient satisfaction. SN - 0893-2174 UR - https://www.unboundmedicine.com/medline/citation/11951800/Computer_aided_direct_ceramic_restorations:_a_10_year_prospective_clinical_study_of_Cerec_CAD/CAM_inlays_and_onlays_ L2 - https://www.lens.org/lens/search/patent/list?q=citation_id:11951800 DB - PRIME DP - Unbound Medicine ER -