Please activate JavaScript!
Please install Adobe Flash Player, click here for download
ePaper created 2016-09-20, 16:58:27 | version 1.38.0
Journal of Oral Science & Rehabilitation 26 Volume 2 | Issue 3/2016 F r a c t u r e r e s i s t a n c e o f p r o v i s i o n a l i m p l a n t - p r o s t h e t i c a b u t m e n t s Influence of fatigue on resistance and deformation of implant abutments used for provisional prosthetic restoration Abstract O b j e c t i v e One of the most difficult challenges for implant-supported prosthetic restorations is the management and maintenance of periimplant soft- tissueesthetics,especiallyintheanteriorregion.Inordertodothiseffect- ively, there are diverse techniques for tissue management, the most sig- nificantbeingfixedprovisionalization,whichcanbeimmediateordelayed. The aim of this study was to analyze fracture resistance of provisional implant-prosthetic abutments (titanium, PEEK and methacrylate) and to determinewhetherpreviouslyfatiguingtheabutmentsinfluencedfracture resistance. M a t e r i a l s a n d m e t h o d s Fortyimplant-prosthetic abutments underwent static load testing; 20 of these were subjected to fatiguing before load testing. Forty internal hex connectionimplantssupportedthe40abutments:tentitaniumprovisional abutments, ten castable methacrylate provisional abutments, ten PEEK resin provisional abutments and ten titanium definitive abutments. R e s u l t s Thegroupthatshowedthegreatestfractureresistancewasthenonfatigued definitive titanium abutments, with values over 1,000 N. The abutments thatshowedthelowestfractureresistancewerethefatiguedcastablemeth- acrylate provisional abutments, with a mean value of 192.8 N. C o n c l u s i o n Fatiguingtheabutmentsdidnotsignificantlyinfluencetheirfractureresis- tanceorelasticbehavior.Alloftheabutmentsstudiedfulfilledthemechan- ical requirements for survival in the mouth. K e y w o r d s Dentalimplant,provisional/definitiveimplantabutment,fatiguing,imme- diate loading. Rubén Agustín Panadero,a Antonio Fons Font,a David Peñarrocha Oltraa & María Fernanda Solá Ruíza a Department of Oral Medicine, Faculty of Medicine and Dentistry, University of Valencia, Valencia, Spain C o r r e s p o n d i n g a u t h o r : Dr. Rubén Agustín Panadero C/ Gascó Oliag, 1 46021 Valencia Spain T +34 963 864 144 rubenagustinpanadero@gmail.com H o w t o c i t e t h i s a r t i c l e : Agustín Panadero R, Fons Font A, Peñarrocha Oltra D, Solá Ruíz MF. Influence of fatigue on resistance and deformation of implant abutments used for provisional prosthetic restoration. J Oral Science Rehabilitation. 2016 Sep;2(3):26–33. T +34963864144