Gülşah Uslu, Koray Yılmaz, Mustafa Gündoğar, Can Topkara, Taha Özyürek

Pull-out Retentive Resistance of Fiber Posts Restored with Different Core Materials

Amaç: Bu çalışmada farklı rezin simanlar ile kor yapıları oluşturulmuş FiberSite ve RelyX Fiber Post sistemlerinin kök kanalına bağlanma kuvvetlerinin incelenmesi amaçlanmıştır. Gereç ve Yöntemler: Altmış adet mandibular premolar diş, 15±1 mm kök kanal uzunluğu elde etmek için yatay olarak kesildi. Örneklerin kök kanalları #40’a kadar prepere edildi ve guta-perka ve kanal patı kullanılarak kök kanal dolguları yapıldı. Örnekler daha sonra 3 gruba ayrıldı (n=20). Grup 1’de FiberSite postları Clearfil DC Core Plus ile simante edildi. Grup 2’de RelyX Fiber postlarının simantasyonu ve kor yapıları, Clearfil DC Core Plus ile yapıldı. Grup 3’te, Clearfil DC Core Plus ile simante edilen RelyX Fiber postlarının kor yapıları Filtek Bulk Fill Posterior ile yapıldı. Tüm örneklere, universal test cihazında kırılma gerçekleşinceye kadar dikey yönde 0,5 mm/dak sabit kuvvet uygulandı. Verilere tek yönlü varyans analizi yapıldı ve post hoc testleri ile analiz edildi. Bulgular: FiberSite postlarının bağlanma dayanımı, RelyX Fiber postlarından anlamlı ölçüde daha yüksek bulunmuştur (p

Pull-out Retentive Resistance of Fiber Posts Restored with Different Core Materials

Objective: This study aimed to assess the pull-out bonding resistance of FiberSite and RelyX Fiber posts constructed from core structures using various resin cement. Materials and Methods: Sixty mandibular premolar teeth were horizontally sectioned to create a root canal length of 15±1 mm. Up to size #40, samples were prepared and obturated with gutta-percha and root canal sealer. Three groups of specimens (n=20) were formed. FiberSite posts were luted and built-up using Clearfil DC Core Plus in Group 1, RelyX Fiber posts were luted and built-up using Clearfil DC Core Plus in Group 2, and RelyX Fiber Posts were luted and built-up using Filtek Bulk Fill Posterior in Group 3. Each specimen was vertically positioned in a universal testing machine and rotated at 0.5 mm/min until it dislodged. One- way ANOVA and post hoc tests were used to evaluate the data. Results: The bonding strength of FiberSite posts was higher than that of RelyX Fiber posts (p

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