Abstract
Background. The present study aimed to compare the shaping ability of Reciproc Blue instruments with or without the creation of a glide path in simulated S-shaped root canals. Methods. Root canals of thirty #15.02 clear resin S-shaped blocks were dyed using ink and photographed. Then the blocks were randomly divided into 2 groups: group A: Reciproc Blue with glide path created with ProGlider and group B: Reciproc Blue with no glide path preparation (n=15). The blocks were also photographed after preparation. The pre- and post-prepara-tion images were superimposed and evaluated at 9 different measurement points according to the 3 zones, as coronal straight, first curvature, and apical curvature zones. The data were evaluated with independent t-test or Kruskal-Wallis tests with 5% significance interval. Results. Group B removed greater amount of material from the inner aspect of simulated canal at the first curvature and apical curvature zones and from the outer aspect of the canal at apical curvature zone (P<0.05). Both groups exhibited trans-portation and the transportation width in group B was significantly greater in the levels of apical curvature zone (P<0.05). Conclusion. Glide path preparation using ProGlider rotary instrument improved the shaping ability of Reciproc Blue R25 instrument by leading to less transportation and maintaining centering ability.
Highlights
The blocks were randomly divided into 2 groups: group A: Reciproc Blue with glide path created with ProGlider and group B: Reciproc Blue with no glide path preparation (n=15)
Group B removed greater amount of material from the inner aspect of simulated canal at the first curvature and apical curvature zones and from the outer aspect of the canal at apical curvature zone (P
The present study aimed to evaluate the effect of glide path creation on the shaping ability of Reciproc Blue
Summary
Glide path preparation provides guidance for root canal preparation instruments to follow.[1,2] Glide path can be described as a smooth and centered preparation from root canal orifice to the apical foramen.[1,2] An ideal glide path has been reported to prevent difficulties and complications that might arise during chemomechanical preparation such as taper lock, ledge formation, transportation and instrument fracture.[1,3,4] The use of stainless steel K-files or motor driven nickel-titanium (NiTi) instruments have been suggested for glide path preparation.[5,6,7,8] The use of motor driven NiTi rotary instruments has been reported to provide a less time-consuming and safe glide path preparation, respecting the original canal anatomy.[5,9]. ProGlider (Dentsply Sirona, Ballaigues, Switzerland) is a rotary glide path instrument and is manufac-. The present study aimed to compare the shaping ability of Reciproc Blue instruments with or without the creation of a glide path in simulated S-shaped root canals
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