Comparison of shaping ability of the Reciproc Blue and One Curve with or without glide path in simulated S-shaped root canals
Biasillo Vincenzo, Castagnola Raffaella, Colangeli Mauro, Panzetta Claudia, Minciacchi Irene, Plotino Gianluca, Staffoli Simone, Marigo Luca, Grande Nicola Maria,
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( Biasillo Vincenzo ) - Universita Cattolica del Sacro Cuore School of Dentistry Department of Operative Dentistry and Endodontics
( Castagnola Raffaella ) - Universita Cattolica del Sacro Cuore School of Dentistry Department of Operative Dentistry and Endodontics
( Colangeli Mauro ) - Universita Cattolica del Sacro Cuore School of Dentistry Department of Operative Dentistry and Endodontics
( Panzetta Claudia ) - Universita Cattolica del Sacro Cuore Physics Department
( Minciacchi Irene ) - Universita Cattolica del Sacro Cuore School of Dentistry Department of Operative Dentistry and Endodontics
( Plotino Gianluca ) - Private practice
( Staffoli Simone ) - Sapienza University of Rome Department of Oral and Maxillo-Facial Science
( Marigo Luca ) - Universita Cattolica del Sacro Cuore School of Dentistry Department of Operative Dentistry and Endodontics
( Grande Nicola Maria ) - Universita Cattolica del Sacro Cuore School of Dentistry Department of Operative Dentistry and Endodontics
Abstract
Objectives: This study aimed to assess the impact of a glide-path on the shaping ability of 2 single-file instruments and to compare the centering ability, maintenance of original canal curvatures and area of instrumentation in simulated S-shaped root canals.
Materials and Methods: Forty simulated S-shaped root canals were used and were prepared with One Curve (group OC), One G and OC (group GOC), Reciproc Blue (group RB) and R-Pilot and RB (group PRB) and scanned before and after instrumentation. The images were analyzed using AutoCAD. After superimposing the samples, 4 levels (D1, D2, D3, and D4) and 2 angles (Δ1 and Δ2) were established to evaluate the centering ability and modification of the canal curvatures. Then, the area of instrumentation (ΔA) was measured. The data were analyzed using 2-way analysis of variance and Tukey's test for multiple comparisons (p < 0.05).
Results: Regarding the centering ability in the apical part (D3, D4), the use of the glide-path yielded better results than the single-file groups. Among the groups at D4, OC showed the worst results (p < 0.05). The OC system removed less material (ΔA) than the RB system, and for Δ1, OC yielded a worse result than RB (p < 0.05).
Conclusions: The glide-path improved the centering ability in the apical part of the simulated S-shaped canals. The RB system showed a better centering ability in the apical part and major respect of the canal curvatures compared with OC system.
키워드
Centering ability; Glide-path; Instrumentation; Root canal preparation
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