Comparison of canal transportation in simulated curved canals prepared with ProTaper Universal and ProTaper Gold systems
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초록
Objectives: The purpose of this study was to assess the ability of ProTaper Gold (PTG, Dentsply Maillefer) in maintaining the original profile of root canal anatomy. For that, ProTaper Universal (PTU, Dentsply Maillefer) was used as reference techniques for comparison. Materials and Methods: Twenty simulated curved canals manufactured in clear resin blocks were randomly assigned to 2 groups (n = 10) according to the system used for canal instrumentation: PTU and PTG groups, upto F2 files (25/0.08). Color stereomicroscopic images from each block were taken exactly at the same position before and after instrumentation. All image processing and data analysis were performed with an open source program (FIJI). Evaluation of canal transportation was obtained for two independent canal regions: straight and curved levels. Student's t test was used with a cut-off for significance set at α = 5%. Results: Instrumentation systems significantly influenced canal transportation (p < 0.0001). A significant interaction between instrumentation system and root canal level (p < 0.0001) was found. PTU and PTG systems produced similar canal transportation at the straight part, while PTG system resulted in lower canal transportation than PTU system at the curved part. Canal transportation was higher at the curved canal portion (p < 0.0001). Conclusions: PTG system produced overall less canal transportation in the curved portion when compared to PTU system.
Abstract
Objectives: The purpose of this study was to assess the ability of ProTaper Gold (PTG, Dentsply Maillefer) in maintaining the original profile of root canal anatomy. For that, ProTaper Universal (PTU, Dentsply Maillefer) was used as reference techniques for comparison. Materials and Methods: Twenty simulated curved canals manufactured in clear resin blocks were randomly assigned to 2 groups (n = 10) according to the system used for canal instrumentation: PTU and PTG groups, upto F2 files (25/0.08). Color stereomicroscopic images from each block were taken exactly at the same position before and after instrumentation. All image processing and data analysis were performed with an open source program (FIJI). Evaluation of canal transportation was obtained for two independent canal regions: straight and curved levels. Student's t test was used with a cut-off for significance set at α = 5%. Results: Instrumentation systems significantly influenced canal transportation (p < 0.0001). A significant interaction between instrumentation system and root canal level (p < 0.0001) was found. PTU and PTG systems produced similar canal transportation at the straight part, while PTG system resulted in lower canal transportation than PTU system at the curved part. Canal transportation was higher at the curved canal portion (p < 0.0001). Conclusions: PTG system produced overall less canal transportation in the curved portion when compared to PTU system.
참고문헌 (24)
- Bergmans L, "Mechanical root canal preparation with NiTi rotary instruments: rationale performance and safety. Status report for the American Journal of Dentistry", Am J Dent, 14, pp.324~333 (2001)
- Gergi R, "Comparison of canal transportation and centering ability of twisted files, Pathfile-ProTaper system, and stainless steel hand K-files by using computed tomography", J Endod, 36, pp.904~907 (2010)
- McGuigan MB, "Endodontic instrument fracture: causes and prevention", Br Dent J, 214, pp.341~348 (2013)
- De-Deus G, "Apically extruded dentin debris by reciprocating single-file and multi-file rotary system", Clin Oral Investig, 19, pp.357~361 (2015)
- Bergmans L, "Smooth flexible versus active tapered shaft design using NiTi rotary instruments", Int Endod J, 35, pp.820~828 (2002)
- Hieawy A, "Phase transformation behavior and resistance to bending and cyclic fatigue of ProTaper Gold and ProTaper Universal instruments", J Endod, 41, pp.1134~1138 (2015)
- Ajuz NC, "Glide path preparation in S-shaped canals with rotary pathfinding nickel-titanium instruments", J Endod, 39, pp.534~537 (2013)
- Giuliani V, "Shaping ability of WaveOne primary reciprocating files and ProTaper system used in continuous and reciprocating motion", J Endod, 40, pp.1468~1471 (2014)
- Silva EJ, "Quantitative transportation assessment in simulated curved canals prepared with an adaptive movement system", J Endod, 41, pp.1125~1129 (2015)
- Schneider CA, "NIH Image to ImageJ: 25 years of image analysis", Nat Methods, 9, pp.671~675 (2012)
- "Rigid 3D alignment of stacks" (2015)[URL]
- Lee TC, "Building skeleton models via 3-D medial surface axis thinning algorithms", Comput Vis Graph Image Process, 56, pp.462~478 (1994)
- Thomson SA, "Shaping ability of Hero 642rotary nickel-titanium instruments in simulated root canals: part 2", Int Endod J, 33, pp.255~261 (2000)
- Hülsmann M, "Comparison of root canal preparation using different automated devices and hand instrumentation", J Endod, 19, pp.141~145 (1993)
- Gagliardi J, "Evaluation of the shaping characteristics of ProTaper Gold, ProTaper NEXT, and ProTaper Universal in curved canals", J Endod, 41, pp.1718~1724 (2015)
- Bonaccorso A, "Shaping ability of four nickel-titanium rotary instruments in S-shaped canals", J Endod, 35, pp.883~886 (2009)
- Dummer PM, "A method for the construction of simulated root canals in clear resin blocks", Int Endod J, 24, pp.63~66 (1991)
- Zhang L, "The shaping effect of the combination of two rotary nickeltitanium instruments in simulated S-shaped canals", J Endod, 34, pp.456~458 (2008)
- Hartmann MS, "Canal transportation after root canal instrumentation: a comparative study with computed tomography", J Endod, 33, pp.962~965 (2007)
- Junaid A, "Influence of single-file endodontics on apical transportation in curved root canals: an ex vivo microcomputed tomographic study", J Endod, 40, pp.717~720 (2014)
- Gergi R, "Effects of three nickel titanium instrument systems on root canal geometry assessed by microcomputed tomography", Int Endod J, 48, pp.162~170 (2015)
- Bergmans L, "A methodology for quantitative evaluation of root canal instrumentation using microcomputed tomography", Int Endod J, 34, pp.390~398 (2001)
- 유영실, "A comparison of the shaping ability of reciprocating NiTi instruments in simulated curved canals", Restorative Dentistry and Endodontics, 37(4), pp.220~227 (2012), 대한치과보존학회[DOI]
- 임영준, "Comparison of the centering ability of Wave·One and Reciproc nickel-titanium instruments in simulated curved canals", Restorative Dentistry and Endodontics, 38(1), pp.21~25 (2013), 대한치과보존학회[DOI]