Comparison of gutta percha and resilon by using two root canal obturation system (system-b and obtura ii) on capability to replicate intracanal depressions and void formation [Guta-perka ve resilonun iki farkli dolgu yöntemi (sistem b ve obtura ii) kullanarak kanal içi düzensizlikleri doldurma ve boşluk oluşumu özelliklerinin karşilaştirilmasi]

Purpose: The purpose of this study is to compare gutta percha and Resilon by using two root canal obturation systems (System-B and Obtura II) on capability to replicate intracanal depressions and void formation. Material and Methods: Two human maxillary central incisors were embedded in a clear acrylic resin blocks just below the cemento-enamel junction (CEJ). The root canals were enlarged by using crown-down technique same apical width but different taper. Split tooth models were sectioned parallel to the long axis in two parts with water cooled diamond coated saw. Four artificial defects were created on the dentin walls. Split tooth models were obturated with gutta-percha and Resilon by using System B and Obtura II techniques. Replication of defects and void formation were evaluated and the data were analyzed chi square and logistic regression tests. Results: No statistically significant differences were found between the gutta-percha and Resilon in void formation; however System B were created voids higher than Obtura II. Gutta-percha was showed better results than Resilon in defect replication, but no differences were found between the obturation techniques and wide and narrow taper. Conclusion: It was concluded that Resilon and gutta-percha has similar handling properties, and obturation technique is more significative on capability to replicate intracanal depressions and void formation in root canal treatment