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Verfasst von:Gabbert, Olaf [VerfasserIn]   i
 Ohlmann, Brigitte [VerfasserIn]   i
 Schmitter, Marc [VerfasserIn]   i
 Farhan, Daniel [VerfasserIn]   i
 Becker, Falk [VerfasserIn]   i
 Rammelsberg, Peter [VerfasserIn]   i
Titel:Effect of gingival ceramic veneer thickness on the fracture strength of zirconia-based fixed dental prostheses
Verf.angabe:Olaf Gabbert, Brigitte Ohlmann, Marc Schmitter, Daniel Farhan, Falk Becker, Peter Rammelsberg
E-Jahr:2010
Jahr:1 June 2010
Umfang:5 S.
Fussnoten:Gesehen am 20.11.2023
Titel Quelle:Enthalten in: American journal of dentistry
Ort Quelle:Weston, FL : [Verlag nicht ermittelbar], 2006
Jahr Quelle:2010
Band/Heft Quelle:23(2010), 3 vom: Juni, Seite 147-151
Abstract:PURPOSE: To assess the effect of different thicknesses of porcelain at the gingival of pontics, on the fracture load of zirconia-based, all-ceramic fixed dental prostheses (FDPs), anchored by inlays. - METHODS: Box inlay cavities were prepared on mandibular molars and premolars. 40 FDPs with yttrium-stabilized zirconia frameworks of identical dimensions were manufactured using a CAD/CAM system and veneered with a press ceramic. The FDPs, replacing a premolar and a molar, were divided into four groups. In Group FR, the framework was all around unveneered. The next three groups received a 1 mm ceramic veneer on the buccal, occlusal and lingual side, but differed in the thickness of the ceramic veneer in the gingival, tensile zone of the pontics. In Group B-0, the gingival veneering was 0 mm, in Group B 1 mm and in Group B-2, 2 mm of gingival porcelain. A group of inlay-retained metal-ceramic FDPs (mc) served as control. All FDPs were subjected to thermal cycling and 600,000 cycles of mechanical load of 50 N. The load to fracture (N) was measured and fracture sites were evaluated macroscopically. A single-factor Analysis of Variance was used to analyze the data. - RESULTS: None of the FDPs debonded after thermal cycling or mechanical loading and no signs of fractures or other defects were observed. The mean fracture loads and standard deviations in parentheses were: 647 N (123) for Group B-0, 716 N (102) for Group FR, 812 N (48) for Group B-1, 934 N (129) for Group B-2 and 1005 N (SD 81) for Group MC. Means for Groups B-0 and FR were not shown to differ, and the same for mean fracture strength of Groups B-2 and MC.
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

Volltext: https://pubmed.ncbi.nlm.nih.gov/20718211/
Datenträger:Online-Ressource
Sprache:eng
Sach-SW:Analysis of Variance
 Bicuspid
 Cementation
 Dental Porcelain
 Dental Stress Analysis
 Dental Veneers
 Denture Design
 Denture, Partial, Fixed
 Gingiva
 Inlays
 Materials Testing
 Molar
 Tensile Strength
 Zirconium
K10plus-PPN:1870673816
Verknüpfungen:→ Zeitschrift

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