GALVANO SERAMİK VE METAL SERAMİK ÜÇ ÜYELİ KÖPRÜ PROTEZLERİNİN KIRILMA DİRENÇLERİNİN İNCELENMESİ

Diş Hekimliğinde sıklıkla tercih edilen metal seramik restorasyonlara alternatif olarak geliştirilen bir sistem de galvano seramik restorasyonlardır. Bu çalışmada galvano seramik ve metal seramik üç üyeli köprü öncesindeki ve sonrasındaki kırılma dirençlerinin incelenmesi amaçlanmıştır. Yirmi adet metal seramik ve 20 adet galvano seramik köprü protezi 2 alt gruba ayrıldı. On adet metal seramik ve 10 adet galvano seramik köprüye 10.000 kez termal döngü uygulaması ve 100.000 kez yorma testi uygulandı. Yorma testi sonrasında tüm köprü örneklerine Universal test cihazında kırılana kadar kuvvet uygulandı. İstatistiksel değerlendirmeler ANOVA testi ile yapıldı. Sonuç olarak en yüksek ortalama kırılma değeri yorma testi uygulanmayan metal seramik köprülerde bulunurken en düşük ortalama kırılma değeri ise yorma testi uygulanan galvano seramik köprülerde bulundu

Anahtar Kelimeler:

Galvano seramik, metal seramik, kırılma direnci

Investigation of Fracture Strength of Galvano Ceramic, Metal Ceramic Three Unit Bridges

Galvano ceramic restoration is an alternative improved system to metal ceramic restoration frequently preferred in dentistry. The aim of this study was to investigate fracture strength of galvano ceramic and metal ceramic three unit bridges before and after fatigue test. Twenty galvano ceramic and 20 metal ceramic bridges were divided into subgroup. As a fatigue test 10000 thermal cycling and 100000 mechanical loading were applied to ten galvano ceramic and ten metal ceramic bridges. After fracture test was carried out on all of the bridge sample by universal testing machine. Fort he statistical analyse of the study results ANOVA was used. Finally maximum mean fracture strength was non fatigued metal ceramic bridges and minimum mean fracture strength was fatigued galvano ceramic bridges

Keywords:

Galvano ceramic, metal ceramic, fracture strength,

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