0000000000409835

AUTHOR

Celia Tobar

0000-0002-2784-0638

showing 2 related works from this author

Influence of Implant Connection, Abutment Design and Screw Insertion Torque on Implant-Abutment Misfit

2020

Background: An accurate fit at the implant-abutment interface is an important factor to avoid biological and mechanical complications. The aim of this study was to evaluate the marginal misfit at the implant-abutment interface on external and Morse taper connection, with straight and angulated abutments under different insertion torque loads. Materials and Methods: A total of 120 implants were used, 60 with external connection (EC) and 60 with Morse taper connection (IC). Straight (SA) (n = 60) and angulated abutments (AA) (n = 60) were randomly screwed to each connection at different torque levels (n = 10 each): 10, 20 and 30 Ncm. All specimens were subjected to thermal and cyclic loading …

Insertion torqueabutmentAbutmentlcsh:Medicine02 engineering and technologyArticle03 medical and health sciencesinternal connection0302 clinical medicineMedicineTorqueexternal connectionExternal connectionimplant-abutment interfaceMorse taperbusiness.industrylcsh:R030206 dentistryGeneral MedicineStructural engineering021001 nanoscience & nanotechnologyConnection (mathematics)misfitImplant0210 nano-technologybusinessImplant abutmentJournal of Clinical Medicine
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Effect of Thermomechanical and Static Loading on the Load to Fracture of Metal‐Ceramic, Monolithic and Veneered Zirconia Posterior Fixed Partial Dent…

2018

PURPOSE To evaluate the influence of static (not preloaded) and thermomechanical loading on the load to fracture of metal-ceramic, monolithic and veneered zirconia computer-aided design/computer-aided manufacturing (CAD/CAM) posterior fixed partial dentures (FPDs). MATERIALS AND METHODS One hundred standardized specimens with 2 abutments screwed onto a platform were prepared from stainless steel to receive a posterior 3-unit FPD with an intermediate pontic. Specimens were randomly divided into 5 groups (n = 20): Metal-ceramic (control group), Lava Zirconia system, Vita In-Ceram YZ, IPS e.max ZirCAD, and Lava Plus. Half of the specimens of each group (n = 10) underwent no preloading, and the…

Dental Stress AnalysisMaterials scienceMetal Ceramic AlloysDental Abutments02 engineering and technologyCrossheadDental MaterialsRandom Allocation03 medical and health sciences0302 clinical medicineMaterials TestingFixed partial denturesCubic zirconiaDental Restoration FailureComposite materialGeneral DentistryUniversal testing machineFracture loadMonolithic zirconia030206 dentistryStainless Steel021001 nanoscience & nanotechnologyMetal ceramicDental VeneersFracture (geology)Computer-Aided DesignDenture Partial FixedStress MechanicalZirconium0210 nano-technologyJournal of Prosthodontics
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