Dentinal Microcracks After Root Canal Preparation in Primary Root: An Evaluation of ProTaper Gold and Kedo-S Rotary File Systems

Overview

Journal Int J Clin Pediatr Dent

Specialty Pediatrics

Date 2024 Jan 1

PMID 38162241

Authors

Mamata B Patil

Praveenkumar S Mandroli

Prashant Jalannavar

Bharati B Patil

Affiliations

Soon will be listed here.

Abstract

Context: There is a possibility of dentinal crack formation in primary teeth after root canal preparation using rotary files.

Aims: To evaluate and compare the effect of ProTaper-Gold and Kedo-S rotary files on crack formation after root canal preparation in primary molars.

Settings And Design: A total of 120 freshly extracted mandibular primary molars (6-9 years) were randomly divided into three groups of 40 each: ProTaper-Gold, Kedo-S, and Hand H-files, respectively.

Materials And Methods: The roots were covered with a snuggly fitting surgical glove and stabilized in the teeth slot of a silicone mold of mandibular mixed dentition. Dental casts were obtained in a mixture of plaster of paris and sawdust. A screw system was incorporated in the cast for stabilization of the cast into the phantom head. All the root canals were instrumented in a standard operating position till 1 mm short of the radiographic apex. All roots were then stained and sectioned perpendicular to the long axis at the furcation level and 2 mm below the furcation to obtain one section per tooth. Sections were examined under a stereomicroscope at 25× magnification for any crack formations and recorded. Data were analyzed using Wilcoxon signed-rank and Kruskal-Wallis tests ( = 0.05).

Results: The total number of cracks in terms of percentage following the use of ProTaper Gold, Kedo-S, and H-files were 35, 10, and 0%, respectively, on the upper surface and 15, 5, and 0% on the lower surface. Within the group, there was a statistically significant difference in ProTaper-Gold ( = 0.001).

Conclusion: The use of ProTaper-Gold resulted in a greater number of dentinal cracks compared to Kedo-S and H-files.

How To Cite This Article: Patil MB, Mandroli PS, Jalannavar P, Dentinal Microcracks after Root Canal Preparation in Primary Root: An Evaluation of ProTaper Gold and Kedo-S Rotary File Systems. Int J Clin Pediatr Dent 2023;16(5):692-697.

Citing Articles

Paediatric Rotary Files and Dentinal Crack Formation in Primary Teeth: A Systematic Review.

Sulaiman S, A V, Ramar K, Ponraj S, Varghese A Cureus. 2025; 17(1):e77033.

PMID: 39917135 PMC: 11798756. DOI: 10.7759/cureus.77033.

References

George S, Anandaraj S, S Issac J, John S, Harris A . Rotary endodontics in primary teeth - A review. Saudi Dent J. 2016; 28(1):12-7. PMC: 4688451. DOI: 10.1016/j.sdentj.2015.08.004. View

Nishad S, Shivamurthy G . Comparative Analysis of Apical Root Crack Propagation after Root Canal Preparation at Different Instrumentation Lengths Using ProTaper Universal, ProTaper Next and ProTaper Gold Rotary Files: An Study. Contemp Clin Dent. 2018; 9(Suppl 1):S34-S38. PMC: 6006869. DOI: 10.4103/ccd.ccd_830_17. View

Ghorbanzadeh A, Aminifar S, Shadan L, Ghanati H . Evaluation of three methods in the diagnosis of dentin cracks caused by apical resection. J Dent (Tehran). 2013; 10(2):175-85. PMC: 3666079. View

Karatas E, Gunduz H, Kirici D, Arslan H . Incidence of dentinal cracks after root canal preparation with ProTaper Gold, Profile Vortex, F360, Reciproc and ProTaper Universal instruments. Int Endod J. 2015; 49(9):905-910. DOI: 10.1111/iej.12541. View

Kim H, Lee M, Yum J, Versluis A, Lee C, Kim B . Potential relationship between design of nickel-titanium rotary instruments and vertical root fracture. J Endod. 2010; 36(7):1195-9. DOI: 10.1016/j.joen.2010.02.010. View

Bier C, Shemesh H, Tanomaru-Filho M, Wesselink P, Wu M . The ability of different nickel-titanium rotary instruments to induce dentinal damage during canal preparation. J Endod. 2009; 35(2):236-8. DOI: 10.1016/j.joen.2008.10.021. View

Bergmans L, van Cleynenbreugel J, Beullens M, Wevers M, Van Meerbeek B, Lambrechts P . Progressive versus constant tapered shaft design using NiTi rotary instruments. Int Endod J. 2003; 36(4):288-95. DOI: 10.1046/j.1365-2591.2003.00650.x. View

Tan B, Messer H . The quality of apical canal preparation using hand and rotary instruments with specific criteria for enlargement based on initial apical file size. J Endod. 2002; 28(9):658-64. DOI: 10.1097/00004770-200209000-00008. View

Katge F, Patil D, Poojari M, Pimpale J, Shitoot A, Rusawat B . Comparison of instrumentation time and cleaning efficacy of manual instrumentation, rotary systems and reciprocating systems in primary teeth: an in vitro study. J Indian Soc Pedod Prev Dent. 2014; 32(4):311-6. DOI: 10.4103/0970-4388.140957. View

10.

Jeevanandan G . Kedo-S Paediatric Rotary Files for Root Canal Preparation in Primary Teeth - Case Report. J Clin Diagn Res. 2017; 11(3):ZR03-ZR05. PMC: 5427458. DOI: 10.7860/JCDR/2017/25856.9508. View

11.

Yoldas O, Yilmaz S, Atakan G, Kuden C, Kasan Z . Dentinal microcrack formation during root canal preparations by different NiTi rotary instruments and the self-adjusting file. J Endod. 2012; 38(2):232-5. DOI: 10.1016/j.joen.2011.10.011. View

12.

Nagaratna P, Shashikiran N, Subbareddy V . In vitro comparison of NiTi rotary instruments and stainless steel hand instruments in root canal preparations of primary and permanent molar. J Indian Soc Pedod Prev Dent. 2006; 24(4):186-91. DOI: 10.4103/0970-4388.28075. View

13.

Panchal V, Jeevanandan G, Subramanian E . Comparison of instrumentation time and obturation quality between hand K-file, H-files, and rotary Kedo-S in root canal treatment of primary teeth: A randomized controlled trial. J Indian Soc Pedod Prev Dent. 2019; 37(1):75-79. DOI: 10.4103/JISPPD.JISPPD_72_18. View