AN IN VITRO STUDY ON THE CLEANING ABILITY OF VARIOUS IRRIGATION TECHNIQUES USING DIFFERENT ROTARY NITI SYSTEMS

Abstract

This study compared the cleaning efficacy of EndoVac and NaviTip FX irrigation needles using TF and RaCe, both are NiTi rotary systems. One hundred and seventy six extracted single-rooted human teeth were divided randomly into four groups of irrigation methods which are EndoVac, NaviTip FX, Conventional 25G and control. The samples were instrumented using TF and RaCe. Four-micron-thick serial sections were prepared at 1.5 and 3.5mm from the apical foramen, and the images were captured and analyzed using Mirax software. The results showed that while the cleaning ability of EndoVac was significantly better than conventional needle using both TF and RaCe at 3.5 and 1.5mm (p < 0.008), there is no significant difference between NaviTip FX and conventional needles. With the exception of the cleaning ability at 1.5mm using TF, there is no significant difference between EndoVac and NaviTip FX (p > 0.008). At both levels, the cleaning ability of TF and RaCe were not significantly different. In conclusion, we found that EndoVac has  the better cleaning ability than NaviTip and conventional needle with both TF and RaCe rotary NiTi systems, especially at 1.5 mm from the apical foramen. TF and RaCe have similar cleaning ability with all irrigations methods.