Restorative Dentistry and Endodontics

The Korean Academy of Conservative Dentistry (대한치과보존학회)
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Comparison of shaping ability of the Reciproc Blue and One Curve with or without glide path in simulated S-shaped root canals

  • Vincenzo Biasillo (Department of Operative Dentistry and Endodontics, Fondazione Policlinico Universitario A. Gemelli – IRCCS, School of Dentistry, Universita Cattolica del Sacro Cuore) ;
  • Raffaella Castagnola (Department of Operative Dentistry and Endodontics, Fondazione Policlinico Universitario A. Gemelli – IRCCS, School of Dentistry, Universita Cattolica del Sacro Cuore) ;
  • Mauro Colangeli (Department of Operative Dentistry and Endodontics, Fondazione Policlinico Universitario A. Gemelli – IRCCS, School of Dentistry, Universita Cattolica del Sacro Cuore) ;
  • Claudia Panzetta (Physics Department, Universita Cattolica del Sacro Cuore) ;
  • Irene Minciacchi (Department of Operative Dentistry and Endodontics, Fondazione Policlinico Universitario A. Gemelli – IRCCS, School of Dentistry, Universita Cattolica del Sacro Cuore) ;
  • Gianluca Plotino (Private practice) ;
  • Simone Staffoli (Department of Oral and Maxillo-Facial Science, Sapienza University of Rome) ;
  • Luca Marigo (Department of Operative Dentistry and Endodontics, Fondazione Policlinico Universitario A. Gemelli – IRCCS, School of Dentistry, Universita Cattolica del Sacro Cuore) ;
  • Nicola Maria Grande (Department of Operative Dentistry and Endodontics, Fondazione Policlinico Universitario A. Gemelli – IRCCS, School of Dentistry, Universita Cattolica del Sacro Cuore)
  • Received : 2021.03.03
  • Accepted : 2021.04.12
  • Published : 2022.02.28
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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.

Keywords

References

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