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Effect of retention design of artificial teeth and implant-supported titanium CAD-CAM structures on fracture resistance

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Effect of retention design of artificial teeth and implant-supported titanium CAD-CAM structures on fracture resistance

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dc.contributor.author Ladetzki, Kristin es
dc.contributor.author Mateos Palacios, Rocío es
dc.contributor.author Pascual Moscardó, Agustín es
dc.contributor.author Selva Otaolaurruchi, Eduardo J. es
dc.date.accessioned 2016-05-26T09:33:00Z
dc.date.available 2016-05-26T09:33:00Z
dc.date.issued 2016 es
dc.identifier.citation Ladetzki, Kristin ; Mateos Palacios, Rocío ; Pascual Moscardó, Agustín ; Selva Otaolaurruchi, Eduardo J. Effect of retention design of artificial teeth and implant-supported titanium CAD-CAM structures on fracture resistance. En: Journal of Clinical and Experimental Dentistry, 2016, Vol. 8, No. 2: 113-118 es
dc.identifier.uri http://hdl.handle.net/10550/53779
dc.description.abstract Background: For implant-supported hybrid prostheses, high mastication forces and reduced acrylic resin thickness over a metal substructure often cause failures arising from tooth or resin fractures. To assay fracture resistance of artificial teeth and resin in implant-supported hybrid prostheses in relation to the titanium structure and retention design supporting teeth. Material and Methods: 40 specimens bearing incisors were divided into four groups according to the titanium structure supporting the teeth and the type of load force applied: Group I (Control; n=10): Application of static loading to ten incisors set over a metal structure with internal retention. Group II (Control; n=10): Application of static loading to ten incisors set over a metal structure with external retention. The remaining study specimens (n=20) were subjected to 120,000 masticatory and thermal cycles in a chewing simulator. Afterwards, static loading was applied until the point of fracture using an Instron machine. Group III (Study; n=10): Application of dynamic and static loading to ten incisors set over a metal structure with internal retention. Group IV (Study; n=10): Application of dynamic and static loading to ten incisors set over a metal structure with external retention. Data obtained for the four groups was analyzed and compared, determining the type of fracture (cohesive or adhesive) using a reflected light microscope. Results: Statistical analysis confirmed that there were significant differences in fracture resistance between the four groups. External retention was found to have more fracture resistance than the internal retention. Conclusions: Hybrid prostheses with titanium substructures and external retention obtained significantly better results than samples with internal retention. en_US
dc.subject Odontología es
dc.subject Ciencias de la salud es
dc.title Effect of retention design of artificial teeth and implant-supported titanium CAD-CAM structures on fracture resistance es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.type.hasVersion VoR es_ES

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