A four-year prospective clinical evaluation of zirconia and metal-ceramic posterior fixed dental prostheses

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dc.contributor.authorPeláez Rico, Jesús
dc.contributor.authorGómez Cogolludo, Pablo
dc.contributor.authorSerrano Madrigal, Benjamín
dc.contributor.authorSerrano, Jose F. L.
dc.contributor.authorSuárez García, María Jesús
dc.date.accessioned2024-02-01T15:33:58Z
dc.date.available2024-02-01T15:33:58Z
dc.date.issued2012
dc.description.abstractPurpose: The aim of this study was to compare the survival rates and biologic and technical complications of three-unit metal-ceramic posterior fixed dental prostheses (FDPs) with those obtained with zirconia frameworks. Materials and methods: Thirty-seven patients in need of 40 three-unit posterior FDPs were included in this study. The FDPs were randomly assigned to 20 zirconia and 20 metal-ceramic restorations. Abutment preparation guidelines consisted of a 1-mm-wide circumferential chamfer, axial reduction of 1 mm, and occlusal reduction of 1.5 to 2 mm. At baseline and 1, 2, 3, and 4 years after cementation, success of both types of restorations was evaluated. The restorations were assessed using the California Dental Association's assessment system. Periodontal parameters were assessed by determining the Plaque Index (PI), Gingival Index (GI), Marginal Index (MI), and pocket depth of the abutment and control teeth. Statistical analysis was performed by applying Wilcoxon rank sum and Wilcoxon signed-rank tests. Results: Patients were examined after a mean observation period of 50 ± 2.4 months. The survival rates for metal-ceramic and zirconia restorations were 100% and 95%, respectively. One biologic complication in a zirconia FDP was observed at the 3-year follow-up. No fractures of the zirconia or metal frameworks were observed. Restorations from both groups were assessed as satisfactory. Minor chipping of the veneering ceramic was observed in 2 zirconia FDPs after 4 years. No significant differences were observed between abutment and contralateral teeth for either type of restoration or within the groups with regard to PI, GI, and pocket depth. Conclusion: Zirconia-based FDPs demonstrated a similar survival rate to metal-ceramic FDPs after medium-term clinical use.
dc.description.departmentDepto. de Odontología Conservadora y Prótesis
dc.description.facultyFac. de Odontología
dc.description.refereedTRUE
dc.description.sponsorshipResearch project between the University Complutense and 3M España SA (nº 26-2005)
dc.description.statuspub
dc.identifier.citationPelaez J, Cogolludo PG, Serrano B, Serrano JF, Suarez MJ. A four-year prospective clinical evaluation of zirconia and metal-ceramic posterior fixed dental prostheses. Int J Prosthodont. 2012 Sep-Oct;25(5):451-8
dc.identifier.essn1942-4426
dc.identifier.issn0893-2174
dc.identifier.pmid22930766
dc.identifier.urihttps://hdl.handle.net/20.500.14352/97861
dc.issue.number5
dc.journal.titleThe International Journal of Prosthodontics
dc.language.isoeng
dc.page.final458
dc.page.initial451
dc.publisherQuintessence
dc.rights.accessRightsrestricted access
dc.subject.cdu616.314
dc.subject.cdu616.314.17-008.1
dc.subject.cdu615.46
dc.subject.keywordBicuspid
dc.subject.keywordCementation
dc.subject.keywordComputer‐Aided Design
dc.subject.keywordDental Plaque Index
dc.subject.keywordDental Porcelain
dc.subject.keywordDenture Design
dc.subject.keywordMetal Ceramic Alloys
dc.subject.keywordPeriodontal Index
dc.subject.keywordProspective Studies
dc.subject.keywordSurvival Analysis
dc.subject.keywordTooth Preparation
dc.subject.keywordProsthodontic
dc.subject.keywordZirconium
dc.subject.ucmOdontología (Odontología)
dc.subject.ucmPeriodoncia
dc.subject.ucmMateriales dentales
dc.subject.unesco32 Ciencias Médicas
dc.subject.unesco3213.13 Ortodoncia-Estomatología
dc.subject.unesco3314 Tecnología Médica
dc.titleA four-year prospective clinical evaluation of zirconia and metal-ceramic posterior fixed dental prostheses
dc.typejournal article
dc.type.hasVersionVoR
dc.volume.number25
dspace.entity.typePublication
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relation.isAuthorOfPublication.latestForDiscovery99246851-94a2-44a2-aaa7-813b0dc6f2a0
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