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Post-fatigue fracture resistance of metal core crowns: press-on metal ceramic versus a conventional veneering system
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- Journal of Clinical and Experimental Dentistry
- Journal of Clinical and Experimental Dentistry. 2015. Vol. 7, no. 2
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Post-fatigue fracture resistance of metal core crowns: press-on metal ceramic versus a conventional veneering system
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| dc.contributor.author | Solá Ruiz, María Fernanda | es |
| dc.contributor.author | Agustín Panadero, Rubén | es |
| dc.contributor.author | Campos Estellés, Carlos | es |
| dc.contributor.author | Labaig Rueda, Carlos | es |
| dc.date.accessioned | 2015-06-29T11:46:25Z | |
| dc.date.available | 2015-06-29T11:46:25Z | |
| dc.date.issued | 2015 | es |
| dc.identifier.citation | Solá Ruiz, María Fernanda ; Agustín Panadero, Rubén ; Campos Estellés, Carlos ; Labaig Rueda, Carlos. Post-fatigue fracture resistance of metal core crowns: press-on metal ceramic versus a conventional veneering system. En: Journal of Clinical and Experimental Dentistry, 2015, Vol. 7, No. 2: 278-283 | es |
| dc.identifier.uri | http://hdl.handle.net/10550/44848 | |
| dc.description.abstract | Background: The aim of this in vitro study was to compare the mechanical failure behavior and to analyze fracture characteristics of metal ceramic crowns with two veneering systems – press-on metal (PoM) ceramic versus a conventional veneering system – subjected to static compressive loading. Material and Methods: Forty-six crowns were constructed and divided into two groups according to porcelain veneer manufacture. Group A: 23 metal copings with porcelain IPS-InLine veneering (conventional metal ceramic). Group B: 23 metal copings with IPS-InLine PoM veneering porcelain. After 120,000 fatigue cycles, the crowns were axially loaded to the moment of fracture with a universal testing machine. The fractured specimens were examined under optical stereomicroscopy and scanning electron microscope. Results: Fracture resistance values showed statistically significant differences (Student’s t-test) regarding the type of ceramic veneering technique ( p =0.001): Group A (conventional metal ceramics) obtained a mean fracture resistance of 1933.17 N, and Group B 1325.74N (Press-on metal ceramics). The most common type of fracture was adhesive failure (with metal exposure) ( p =0.000). Veneer porcelain fractured on the occlusal surface following a radial pattern. Conclusions: Metal ceramic crowns made of IPS InLine or IPS InLine PoM ceramics with different laboratory techniques all achieved above-average values for clinical survival in the oral environment according to ISO 6872. Crowns made with IPS InLine by conventional technique resisted fracture an average of 45% more than IPS InLine PoM fabricated with the press-on technique | en_US |
| dc.subject | Odontología | es |
| dc.subject | Ciencias de la salud | es |
| dc.title | Post-fatigue fracture resistance of metal core crowns: press-on metal ceramic versus a conventional veneering system | es |
| dc.type | journal article | es_ES |
| dc.subject.unesco | UNESCO::CIENCIAS MÉDICAS | es |
| dc.type.hasVersion | VoR | es_ES |
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