Computed Tomographic Evaluation of Shaping Ability for FKG Dentaire and ProTaper Next Files on Preservation of Canal Width and Degree of Taper

Manal M. Abdelhafeez^{1, 2,}

¹Endodontics, Collage of Dentistry, Qassim University, KSA

²Endodontics, October University for Modern Sciences and Arts, Egypt

Cite this paper:
Manal M. Abdelhafeez. Computed Tomographic Evaluation of Shaping Ability for FKG Dentaire and ProTaper Next Files on Preservation of Canal Width and Degree of Taper. International Journal of Dental Sciences and Research. 2020; 8(2):56-61. doi: 10.12691/ijdsr-8-2-6

Abstract

Objectives: This current study was performed to evaluate the ability of two rotary filing systems; namely, FKG Dentaire NiTi files (La Chaux-de-Fonds,Switzerland) and ProTaper Next NiTi files (Dentsply Maillefer, Ballaigues, Switzerland) in preservation of canal width and degree of taper after instrumentation in root canal system. Materials and Methods: A total of sixty-four freshly extracted single-rooted first mandibular permanent human premolar teeth with single canals were selected. The teeth were then decoronated and the canals were instrumented. Teeth were then divided into two main groups, consisting of thirty-two each. Root canals were prepared using the FKG Dentaire system in the first group and the PTN (ProTaper Next) system in the second group. Degree of canal width changes and change in canal taper were measured by using the Cone-Beam Computed Tomography (CBCT) before and after root canal instrumentation. Finally, all data were collected and statistically analyzed by the aid of the paired Student's t and Chi-square test. Results: At the minimal width changes measurements, 1mm from the apex, it was found that no significant difference exists between the mean and standard deviation of pre-instrumented and post-instrumented groups using FKG system, (P=0.0756). However, a significant difference exists between the mean and standard deviation of pre- and post-instrumented groups using the PTN system, (P=0.0117). On the other hand, at the maximum width changes measurements, 7mm from the apex, it was found that a significant difference exists between the mean and standard deviation of pre- and post-instrumented groups using FKG system, (P=0.0015). While a highly significant difference exists between the mean and standard deviation of pre- and post-instrumented groups using PTN system, (P=0.0005). Conclusion: Under certain conditions of this study, FKG system appears to remove lesser dentin with more tendency to preserve the canal taper and decrease any unneeded enlargement.

Keywords:
CBCT canal taper canal width FKG protaper next

This work is licensed under a Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

References:

[1]	Zhou H. Peng B. Zheng YF. An overview of the mechanical properties of nickel-titanium endodontic instruments. Endodontic Topics. 2013; 29: 42-54.
[2]	Gutmann JL., Gao Y () Alteration in the inherent metallic and surface properties of nickel-titanium root canal instruments to enhance performance, durability and safety: a focused review. International Endodontic Journal. 2012; 45: 113-28.
[3]	Peters O7. Peters CI. Schonenberger K, BarbakowF. Protaper rotary root canal preparation: effects of canal anatomy on final shape analyzed by micro CT. international Endodontic Journal. 2003; 36: 86-92.
[4]	Peters OA. Current challenges and concepts in the preparation of root canal systems: a review. Journal of Endodontics. 2004; 30: 559-6.
[5]	Peters OA, Schonenberger K. Laib A. Effects of four Ni-Ti preparation techniques on root canal geometry assessed by micro computed tomography. International Endodontic Journal. 2001; 34: 221-30.
[6]	Pongione G. Giansiracusa A. Lisotti F. Milana V. Testarelli L. Mechanical properties of endodontic instruments made with different nickel titanium alloys: a stiffness test. ENDO-Endodontic Practice Today. 2012; 6: 41-4.
[7]	Iqbal MK. Firic S. Tulcan J. Karabucak B, Kim S. Comparison of apical transportation between ProFile and ProTaper NiTi rotary instruments. International Endodontic Journal. 2004; 37: 359-64.
[8]	Javaheri HH. Javaheri GH. A comparison of three Ni-Ti rotary instruments in apical transportation. Journal of Endodontics. 2007; 33: 284-6.
[9]	Khurana P, Nainan MT, Sodhi KK, Padda BK. Change of working length in curved molar root canals alter preparation with different rotary nickel-titanium instruments. Journal of Conservative Dentistry. 2011; 14: 264-8.
[10]	Capar ID, Ertas H, Ok E, Arslan H, Ertas ET. Comparative study of different novel nickel-titanium rotary systems for root canal preparation in severely curved root canals. Journal Endodntics. 2014;40(15): 852-56.
[11]	Ruddle CJ, Machtou P, West JD. The shaping movement: fifth-generation technology. Dent Today. 2013; 32(4): 94: 96-9.
[12]	Bonessio N, Pereira ES, Lomiento G, Arias A, Bahia MG, Buono VT, Peters OA. Validated finite element analyses of WaveOne Endodontic Instruments: a comparison between M-Wire and NiTi alloys. Int Endodontic Journal. 2015;48: 441-50.
[13]	Al-Hadlaq SMS. Aljarbou FA. Althumairy RI. Evaluation of cyclic flexural fatigue of M-Wire nickel-titanium rotary instruments. Journal of Endodontics. 2010; 36: 305-7.
[14]	Johnson E. Lloyd A. Kuttler S, Namerow K. Comparison between a novel nickel-titanium alloy and 508 nitinol on the cyclic fatigue life of ProFile 25/.04 rotary instruments. Journal of Endodontics. 2008; 34: 1406-9.
[15]	Larsen CM, Walanabi. Glickman (GN, He G. Cyclic fatigue analysis of a new generation of nickel titanium rotary instruments. Journal of Endodontics. 2009; 35: 401-3.
[16]	Uzun O, Topuz O, Aydýn C, Alaçam T, Aslan B. Enlarging characteristics of four nickel titanium rotary instrument systems under standardized conditions of operator related variables. Journal of Endododontics 2007; 33: 1117-20.
[17]	Pettiette MT, Delano EO, Trope M. Evaluation of success rate of endodontic treatment performed by students with stainless-steel k-files and nickel-titanium hand files. Journal of Endodonties. 2001; 27: 124-7.
[18]	Celik D. Tasdemir T, Er K. Comparative study of 6 rotary nickel-titanium systems and hand instrumentation or root canal preparation in severely curved root canals of extracted teeth. Journal of Endodontics. 2013; 39: 278-82.
[19]	Davis RD, Marshall JG. Baumgartner JC. Effect of early coronal flaring on working length change in curved canals using rotary nickel-titanium versus stainless steel files. Journal of Endodontics. 2002; 28: 438-42.
[20]	Gergi R. Rjeily JA. Sader J. Naaman A. Comparison of canal transportation and centering ability of twisted files, pathfile-protaper system and stainless-steel hand k-file by using computed tomography. Journal of Endodontics. 2010; 36: 904-7.
[21]	Gambill JM, Alder M, del Rio CE. Comparison of nickel-titanium and stainless-steel hand-file instrumentation using computed tomography. Journal of Endodontics 1996; 22:369-75.
[22]	Morgan, L.F. and Montgomery S.: An evaluation of the crown down pressureless technique. Journal of Endodontics 1984; 10: 491.
[23]	Ghivari SB, Kubasad GC, Chandak MG, Akarte NR. Apical extrusion of debris and irritants using hand and rotary systems: A comparative study. Journal of Conservative Dent 2011; 14: 187-90.
[24]	Nair MK, Nair UP. Digital and advanced imaging in endodontics: A review. Journal of Endodontics 2007; 33: 1 6.
[25]	Scarfe WC. Use of cone beam computed tomography in endodontics. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2011:2:234 7.
[26]	Dayal C, Sajjan GS. Imaging solutions in endodontics: Cone beam computed tomography A review. Endodontology 2012; 24:167 70.
[27]	Howerton WB Jr, Mora MA. Advancements in digital imaging: What is new and on the horizon? J Am Dent Assoc 2008: 139: 20-4S.
[28]	Durack C, Patel S. Cone beam computed tomography in endodontics. Brazilian Dental Journal 2012:23:179-91.