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Fourteen-year evaluation of posterior zirconia-based three-unit fixed dental prostheses: A prospective clinical study of all ceramic prosthesis.
J Dent. 2020 Jun 30 [Online ahead of print]JD

Abstract

OBJECTIVES

the purpose of the present prospective trial was to evaluate the clinical performance of posterior 3-unit zirconia-based fixed dental prostheses (FDPs) after 14 years of clinical function.

METHODS

thirty-seven patients needing to replace either premolars or molars were involved and 48 FDPs were fabricated (Procera Zirconia, Nobel Biocare AB). Frameworks with a9 mm2 cross section of the connectors and 0.6 mm minimum thickness of the retainers were made by means of Procera Forte CAD-CAM System (Nobel Biocare AB). The patients were recalled after 6 and 12 months and then yearly up to a total follow-up of 14 years. Two independent survival curves for patients wearing 1 or 2 FDPs were calculated by means of Kaplan-Meier analysis and a log-rank test was performed in order to compare these curves. The United States Public Health Service criteria were used to examine technical and esthetic outcomes. The biological examination was performed evaluating plaque control, pocket depth, attachment level, bleeding on probing at both abutments and contralateral teeth and evaluated by means of the Wilcoxon test (p < 0.05) between the baseline and the 14-year follow-up.

RESULTS

descriptive statistics resulted in 91% and 99% cumulative survival rates for patients wearing 1 and 2 FDPs, respectively. There were no significant differences in periodontal parameters between control and test teeth. Both function and esthetic results were successful for FDPs over a 14-year follow-up period.

CONCLUSIONS

the results of this prospective clinical study confirmed the effectiveness of zirconia as a clinical option to fabricate short-span posterior FDPs.

CLINICAL SIGNIFICANCE

within the limitations of the present prospective clinical study, zirconia-based three-unit fixed dental prostheses perform satisfactorily on long term, in posterior areas and in patients with standard biomechanical conditions.

Authors+Show Affiliations

Department of Neurosciences, Reproductive and Odontostomatological Sciences, University "Federico II" of Naples, Via Pansini 5, Naples, 80138, Italy.Department of Neurosciences, Reproductive and Odontostomatological Sciences, University "Federico II" of Naples, Via Pansini 5, Naples, 80138, Italy. Electronic address: mariadimauro94@gmail.com.Department of Neurosciences, Reproductive and Odontostomatological Sciences, University "Federico II" of Naples, Via Pansini 5, Naples, 80138, Italy.Department of Dentistry, IRCCS San Raffaele Hospital and Dental School, Vita Salute University, Via Olgettina 48, Segrate, Milan, 20132, Italy.Department of Neurosciences, Reproductive and Odontostomatological Sciences, University "Federico II" of Naples, Via Pansini 5, Naples, 80138, Italy.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32619571

Citation

Zarone, Fernando, et al. "Fourteen-year Evaluation of Posterior Zirconia-based Three-unit Fixed Dental Prostheses: a Prospective Clinical Study of All Ceramic Prosthesis." Journal of Dentistry, 2020, p. 103419.
Zarone F, Di Mauro MI, Spagnuolo G, et al. Fourteen-year evaluation of posterior zirconia-based three-unit fixed dental prostheses: A prospective clinical study of all ceramic prosthesis. J Dent. 2020.
Zarone, F., Di Mauro, M. I., Spagnuolo, G., Gherlone, E., & Sorrentino, R. (2020). Fourteen-year evaluation of posterior zirconia-based three-unit fixed dental prostheses: A prospective clinical study of all ceramic prosthesis. Journal of Dentistry, 103419. https://doi.org/10.1016/j.jdent.2020.103419
Zarone F, et al. Fourteen-year Evaluation of Posterior Zirconia-based Three-unit Fixed Dental Prostheses: a Prospective Clinical Study of All Ceramic Prosthesis. J Dent. 2020 Jun 30;103419. PubMed PMID: 32619571.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Fourteen-year evaluation of posterior zirconia-based three-unit fixed dental prostheses: A prospective clinical study of all ceramic prosthesis. AU - Zarone,Fernando, AU - Di Mauro,Maria Irene, AU - Spagnuolo,Gianrico, AU - Gherlone,Enrico, AU - Sorrentino,Roberto, Y1 - 2020/06/30/ PY - 2020/03/13/received PY - 2020/06/03/revised PY - 2020/06/25/accepted PY - 2020/7/4/entrez PY - 2020/7/4/pubmed PY - 2020/7/4/medline KW - all ceramic KW - fixed dental prosthesis KW - prospective clinical study KW - prosthesis KW - prosthetic dentistry KW - prosthodontics KW - zirconia SP - 103419 EP - 103419 JF - Journal of dentistry JO - J Dent N2 - OBJECTIVES: the purpose of the present prospective trial was to evaluate the clinical performance of posterior 3-unit zirconia-based fixed dental prostheses (FDPs) after 14 years of clinical function. METHODS: thirty-seven patients needing to replace either premolars or molars were involved and 48 FDPs were fabricated (Procera Zirconia, Nobel Biocare AB). Frameworks with a9 mm2 cross section of the connectors and 0.6 mm minimum thickness of the retainers were made by means of Procera Forte CAD-CAM System (Nobel Biocare AB). The patients were recalled after 6 and 12 months and then yearly up to a total follow-up of 14 years. Two independent survival curves for patients wearing 1 or 2 FDPs were calculated by means of Kaplan-Meier analysis and a log-rank test was performed in order to compare these curves. The United States Public Health Service criteria were used to examine technical and esthetic outcomes. The biological examination was performed evaluating plaque control, pocket depth, attachment level, bleeding on probing at both abutments and contralateral teeth and evaluated by means of the Wilcoxon test (p < 0.05) between the baseline and the 14-year follow-up. RESULTS: descriptive statistics resulted in 91% and 99% cumulative survival rates for patients wearing 1 and 2 FDPs, respectively. There were no significant differences in periodontal parameters between control and test teeth. Both function and esthetic results were successful for FDPs over a 14-year follow-up period. CONCLUSIONS: the results of this prospective clinical study confirmed the effectiveness of zirconia as a clinical option to fabricate short-span posterior FDPs. CLINICAL SIGNIFICANCE: within the limitations of the present prospective clinical study, zirconia-based three-unit fixed dental prostheses perform satisfactorily on long term, in posterior areas and in patients with standard biomechanical conditions. SN - 1879-176X UR - https://www.unboundmedicine.com/medline/citation/32619571/Fourteen-year_evaluation_of_posterior_zirconia-based_three-unit_fixed_dental_prostheses:_A_prospective_clinical_study_of_all_ceramic_prosthesis L2 - https://linkinghub.elsevier.com/retrieve/pii/S0300-5712(20)30165-2 DB - PRIME DP - Unbound Medicine ER -
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