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Farklı estetik abutmentların döngüsel yorulma yüklemesi sonrasında kırılma dayanımlarının değerlendirilmesi / The evaluation of the ftacture strenght of different esthetic abutment after cyclic fatique loading

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Farklı Estetik Abutmentların Döngüsel Yorulma Yüklemesi Sonrasında Kırılma Dayanımlarının Değerlendirilmesi.pdf (1.846Mb)
Date
2015
Author
Balcı, Berna
Advisor
Üşümez, Aslıhan
Type
Thesis Master
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Abstract
The aim of this study was to compare the fracture strength of peek abutments and zirconium abutments which are widely preferred instead of titanium abutments in the esthetic zone for the implant supported fixed prosthesis. In this study, the fracture strength of zirconium and peek abutments were compared after aging by chewing simulator. Study groups were; Group 1: 10 zirconium abutments on the implants (Bredent, Germany, 12 mm length and 4 mm diameter) , Group 2: Peek abutments on the implants (Bredent, Germany, 12 mm length and 4 mm diameter). All implants are embeded into an acrylic resin (Paladent-Kulzer) with 45° angle and torqued with 25 N to the implants. Afterwards, zirconia cores (Zenostar T2 Wieland) were cemented with temporary implant cement (Premier; ABD). Fatique test was performed with a chewing simulator for 1,2 million cycles. Subsequently, load to fracture test was applied by a loading device (Shimadzu, Japan) to all specimens with a speed of 1mm/ min. The fracture strength values were 478,83± 66,72 N for peek abutment group and 722,50± 84,71 N for zirconium abutment group. The results were statistically analysed with T-test. The fracture strength of zirconia abutments were statistically significantly higher than peek abutments (p< 0,001). Key words: Zirconia, ceramic, peek, abutment, fracture strength
 
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Subject
Dental implantasyon = Dental implantation
Dental materyaller = Dental materials
Dental porselen = Dental porcelain
Dental restorasyon = Dental restoration
Dental stres analizi = Dental stress analysis
Titanyum = Titanium
Zirkonyum = Zirconium
URI
https://hdl.handle.net/20.500.12645/18194
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BEZMIALEM VAKIF UNIVERSITY

About us |Policies | Library | Contact us | Send Feedback | Sitemap | Admin

Bezmialem Vakıf Üniversitesi, Adnan Menderes Bulvarı Vatan Caddesi 34093 Fatih, İstanbul / TURKEY
Copyright © Bezmialem Vakıf Üniversitesi

Creative Commons Lisansı
Bezmialem Institutional Repository, Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.

OpenAccess@BVU

Support by  UNIREPOS