No abstract

This study aimed to compare the effects of ethylenediaminetetraacetic acid (EDTA) and maleic acid (MA) on the sealing ability of various root canal sealers. Eighty root canals were instrumented and irrigated with either EDTA or MA. They were divided into eight experimental groups and obturated as follows: Group 1: MA + Hybrid Root SEAL/ gutta-percha. Group 2: EDTA + Hybrid Root SEAL/gutta-percha. Group 3: MA + iRoot SP/gutta-percha. Group 4: EDTA + iRoot SP/gutta-percha. Group 5: MA + EndoREZ/EndoREZ points. Group 6: EDTA + EndoREZ/ EndoREZ points. Group 7: MA + AH Plus/gutta-percha. Group 8: EDTA + AH Plus/gutta-percha. Another ten roots were used as negative and positive controls. The microleakage of each sample was measured at 2-min intervals for 8 min using the fluid filtration method. Data were statistically analyzed with one-way ANOVA, post-hoc Tukey, and paired-samples t tests. The minimum microleakage values were obtained from the teeth obturated with AH Plus and EndoREZ selaers (p < 0.001). The samples with Hybrid Root SEAL showed the maximum leakage (p < 0.001). There were significant differences between the groups irrigated with MA or EDTA in terms of microleakage (p < 0.05). Use of MA resulted in higher microleakage values compared with those using EDTA. The type of final irrigation solution seems to influence the postobturation apical seal. Use of AH Plus and EndoREZ sealers showed better sealing ability compared with IRoot SP and Hybrid Root SEAL.

No abstract

The aim of this study was to compare the apical microleakage of different root canal sealers using dye leakage method. 47 single-rooted teeth were decoronated at the cemento-enamel junction leaving a standard root length of 14 mm. All the roots were instrumented with ProTaper rotary files to an apical size of F3(#30). The 39 root canals were obturated using cold lateral compaction as follows: Group 1(n=13): AH26+gutta-percha. Group 2(n=13): EndoREZ+gutta-percha. Group 3(n=13): iRoot SP+gutta-percha. The remaining eight teeth were used as positive and negative controls. The roots were embedded in methylene blue dye solution for 72 hours and split longitudinally. Dye penetration in the apical region was measured using a stereomicroscope. The data was statistically analysed with one-way ANOVA and post-hoc Tukey tests. EndoREZ group showed statistically significantly more leakage than the iRoot SP group (p=0.001). GİRİŞKök kanalının kemomekanik enstrüman-tasyonunu takiben yapılan kök kanal dolgusunun kalitesi büyük önem taşımaktadır. Bu amaçla preparasyonu yapılmış kök kanalı, uygun bir kor materyali ile kök kanalı ve kor materyali arasındaki bağlantıyı sağlayan bir kök kanal dolgu patı kullanılarak doldurulmaktadır (1). Kök kanal tedavisinde kor materyali olarak en sık güta-perka kullanılmaktadır, ancak kullanılan kök kanal patları çeşitlilik göstermek-tedir (2).Kök kanallarında en çok tercih edilen kök kanal patlarından biri rezin bazlı AH26'dır.