The sealing ability of novel Kryptonite adhesive bone cement as a retrograde filling material

Background. This study evaluated theability of Kryptonite bone cement insealing retrograde cavities. Methods. The root canals of one hundred extracted human maxillary incisor teeth were instrumented up to master apical file #40 usingMtwo rotary system and obturated with gutta-percha and AHPlus sealerby cold lateral compactionmethod. The specimens were assigned to one control group and four experimental groups based on the retrograde filling materials (n=20). The specimens were immersedin 0.5% Rhodamine B solution for 48h. Then the specimens were dividedlongitudi-nally into two parts and the depth of dye penetration was assessed under ×10 magnification. Data were analyzed using one-way ANOVA and Bonferroni tests. Results. There werestatistically significant difference between the experimental groups and the control group (P<0.05). There wereno statistically significant differencesbetweenthe experimental groups in dye penetration scores (P>0.05). Conclusion. Kryptonite cement provided optimal apical seal in a manner similar to MTA, amalgam and IRM when used as a retrograde filling cement.