Effect of Apical Preparation on Different Needle Depth Penetration.
DOI:
https://doi.org/10.15218/edj.2024.7Keywords:
Apical, Needle, Penetration depth, EndodonticsAbstract
Introduction: Irrigation is a fundamental part of endodontic debridement as because it allows for cleaning beyond what might be accomplished by root canal instrumentation. The flushing action produced by the irrigant and the penetration of the irrigant is not dependent only on the anatomy of the root canal system, but also on the depth of placement, system of delivery, the volume and fluid properties of the irrigant. Aim: The aim of the study was to evaluate the effect of apical preparation on the penetration depth of different types of needles.
Methods: Thirty single rooted lower premolar teeth were involved in this study. The access opening was performed by using a round diamond bur turbine (diameter 12) and Kfiles (diameter 15) were used for initial penetration in the canal. Stereo- microscope under 20 magnifications was used to determine the working length of the canal. Then the canals were prepared using protaper next in continuos rotation according to manufacture instructions with sequence files reached the WL (X1, X2, X3, X4). 4 mL of 5.25% NaOCI was used between each instrument. Three different types of endodontic needles were used. Needles size 27, 30-gauge stainless steel and IRRIFLEX endodontic irrigation needle. Each needle was inserted in the canal and its length of penetration was measured before canal preparation and after finishing files then the depth of penetration was measured.
Results: ANOVA test showed that there are significant differences among all groups also results show a significant difference when comparing 27 with 30 needle gauge irriflex but there was no significant difference between the needle gauge 30 and irriflex.
Conclusion: This study shows that the penetration depth of needles influences on apical preparation it appears that 27 -gauge needles show less depth penetration when compared to irriflex and 30- gauge needles.
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