6533b7d1fe1ef96bd125ccc3

RESEARCH PRODUCT

Premolars restored with posts of different materials: fatigue analysis

Pablo-jesús Rodríguez-cervantesLeopoldo Forner-navarroJoaquín-luis Sancho-bruAmaya Barjau-escribanoCarmen González-lluchAntonio Pérez González

subject

Dental Stress AnalysisMaterials sciencemedicine.medical_treatmentGlass fiberInfluence of post materialMaterials testingCrown (dentistry)Bite ForceDental MaterialsTooth FracturesFlexural strengthMaterials TestingmedicineHumansImplant denturesBicuspidComposite materialGeneral DentistryFEAFatigueTooth NonvitalCrownsImplants dentalsRestored teethStress distributionStainless SteelFinite element methodDental Prosthesis DesignDental Stress AnalysisCeramics and CompositesBiomechanical modelGlassDental materials--FatiguePrefabricated intraradicular postsMaterials dentals--FatigaDental AlloysPost and Core Technique

description

Previous works studied the effect of the material and the dimensions of the post on the biomechanical performance (fracture strength and stress distribution) of restored teeth, under static loads. The aim of this work was to study the effect of the post material (glass fibre and stainless steel) on restored teeth, which have the final crown, under dynamic conditions. The use of a biomechanical model, including a fatigue analysis from FEA, is presented as a powerful method to study the effect of the material of the intraradicular post. The inclusion of the fatigue analysis allows for a more realistic study that takes into account the dynamic nature of masticatory forces. At the same time, the results obtained are easier to interpret by both dentists and mechanical engineers. No differences were found, with the load and number of cycles considered, between glass fibre and stainless steel as material for the intraradicular post used in premolars restorations.

yearjournalcountryeditionlanguage
2011-11-30
10.4012/dmj.2011-098