International Journal of Clinical Pediatric Dentistry

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VOLUME 16 , ISSUE S2 ( September, 2023 ) > List of Articles


Evaluation of the Efficiency to Remove the Infected Dentin via Enterococcus faecalis Bacterial Count and to Adequately Shape the Canal Using Hand Kedo-SH Files, Rotary Kedo-SG (Blue) and Pro AF Baby Gold Files in Primary Molars: An In Vitro Study

Kaavya Shanker, Shruthi B Patil

Keywords : Kedo-SG (blue) files, Kedo-SH hand files, Nickel-titanium files, Pediatric endodontics, Pro-AF Baby Gold files, Rotary endodontics

Citation Information :

DOI: 10.5005/jp-journals-10005-2652

License: CC BY-NC 4.0

Published Online: 01-11-2023

Copyright Statement:  Copyright © 2023; The Author(s).


Background: Premature loss of primary teeth results in space loss, thus affecting the integrity of the oral tissues. According to the American Academy of Pediatric Dentistry, the treatment for a carious primary molar with pulpal involvement is pulpectomy. The success of this procedure depends on the elimination of bacteria, the most common being Enterococcus faecalis (E. faecalis), by cleaning and shaping the root canals with rotary or hand instrumentation. Aims and objectives: Evaluating and comparing the cleaning efficacy and obturation quality using Kedo-SH hand files and rotary Kedo-SG (blue) and Pro AF Baby Gold files in primary molar teeth. Materials and methods: A total of 51 extracted primary molar teeth were selected and divided into three equal groups. Group I, the control group, was instrumented with Kedo-SH hand files. Groups II and III were instrumented with Kedo-SG (blue) and Pro AF Baby Gold files, respectively. Baseline data and postinstrumentation data were sent for microbiological analysis to check microbial levels of bacteria E. faecalis. Obturation quality was then scored using Barrieshi-Nusair criteria and the T-scoring system by Robia. Results: Associating obturating length between each group, maximum samples in group I showed adequate fill. Relating to density, maximum samples in group III showed no voids present in the obturation. Distribution of the T-scoring system shows maximum samples in group III having all three qualities of ideal obturation. On comparing microbiological analysis among the groups, group I showed higher colony counts of E. faecalis compared to groups II and III. Conclusion: In the present study, rotary instrumentation in the canals showed more consistent results than hand instrumentation. Among the rotary files, Pro AF Baby Gold files show a greater reduction in E. faecalis, with a good obturation quality. Thus, the use of nickel-titanium (Ni-Ti) files is a good option for root canal instrumentation in primary teeth.

  1. McDonald RE, Avery DR, Dean JA. Dentistry for the Child and Adolescent. Vol. 8th ed. Mosby; 2004.
  2. Setty JV, Srinivasan I. Knowledge and awareness of primary teeth and their importance among parents in Bengaluru City, India. Int J Clin Pediatr Dent 2016;9(1):56. DOI: 10.5005/jp-journals-10005-1334
  3. Kjær I. Mechanism of human tooth eruption: review article including a new theory for future studies on the eruption process. Scientifica 2014;2014:341905. DOI: 10.1155/2014/341905
  4. Jha D, Guerrero A, Ngo T, et al. Inability of laser and rotary instrumentation to eliminate root canal infection. J Am Dent Assoc 2006;137(1):67–70. DOI: 10.14219/jada.archive.2006.0023
  5. Bahrololoomi Z, Tabrizizadeh M, Salmani L. In vitro comparison of instrumentation time and cleaning capacity between rotary and manual preparation techniques in primary anterior teeth. TUMS 2007;59–62.
  6. Musale PK, Mujawar SA. Evaluation of the efficacy of rotary vs. hand files in root canal preparation of primary teeth in vitro using CBCT. Eur Arch Paediatr Dent 2014;15(2):113–120. DOI: 10.1007/s40368-013-0072-1
  7. Pinheiro SL, Araujo G, Bincelli I, et al. Evaluation of cleaning capacity and instrumentation time of manual, hybrid and rotary instrumentation techniques in primary molars. Int Endod J 2012;45(4):379–385. DOI: 10.1111/j.1365-2591.2011.01987.x
  8. Barrieshi-Nusair KM, Al-Omari MA, Al-Hiyasat AS. Radiographic technical quality of root canal treatment performed by dental students at the Dental Teaching Center in Jordan. J Dent 2004;32(4):301–307. DOI: 10.1016/j.jdent.2004.01.00
  9. Robia G. Comparative radiographic assessment of root canal obturation quality: manual verses rotary canal preparation technique. IJBS 2014;10(2):136–142.
  10. Panchal V, Jeevanandan G, Subramanian EM. 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 Ind Soc Pedod Prevent Dent 2019;37(1):75. DOI: 10.4103/JISPPD.JISPPD_72_18
  11. Silva LA, Nelson-Filho P, Leonardo MR, et al. Comparison of rotary and manual instrumentation techniques on cleaning capacity and instrumentation time in deciduous molars. J Dent Child 2004;71(1):45–47.
  12. Farhin K, Devendra P, Jitesh P, et al. Application of rotary instrumentation in paediatric endodontics–a review. Int J Prev Clin Dent Res 2014;1(3):48–52.
  13. Mortazavi M, Mesbahi M. Comparison of zinc oxide and eugenol, and Vitapex for root canal treatment of necrotic primary teeth. Int J Paediatr Dent 2004;14(6):417–424. DOI: 10.1111/j.1365-263X.2004.00544.x
  14. Manhas S, Haritwal V, Chaturvedi Y, et al. Obturating materials in pediatric dentistry: literature review. Int J Contemp Res Rev 2020;11(8). DOI: 10.15520/ijcrr.v11i08.835
  15. Smith CS, Setchell DJ, Harty FJ. Factors influencing the success of conventional root canal therapy—a five-year retrospective study. Int Endod J 1993;26(6):321–333. DOI: 10.1111/j.1365-2591.1993tb00765.x
  16. Bołtacz-Rzepkowska E, Pawlicka H. Radiographic features and outcome of root canal treatment carried out in the Łódź region of Poland. Int Endod J 2003;36(1):27–32. DOI: 10.1046/j.0143-2885.2003.00608.x
  17. George S, Anandaraj S, Issac JS, et al. Rotary endodontics in primary teeth–a review. Saudi Dent J 2016;28(1):12–17. DOI: 10.1016/j.sdentj.2015.08.004
  18. Priyadarshini P, Jeevanandan G, Govindaraju L, et al. Clinical evaluation of instrumentation time and quality of obturation using paediatric hand and rotary file systems with conventional hand K-files for pulpectomy in primary mandibular molars: a double-blinded randomized controlled trial. Eur Arch Paediatr Dent 2020;21(6): 693–701. DOI: 10.1007/s40368-020-00518-w
  19. Chavhan DP, Somvanshi DY, Kumar DS, et al. Different obturating techniques used in primary teeth: a review. Eur J Mol Clin Med 2021;8(3):958–965.
  20. Parimala K, Singh TN, Shilpi T, et al. Literature review on rotary endodontics in primary teeth. SRM J Res Dent Sci 2021;12(2):95. DOI: 10.4103/srmjrds.srmjrds_132_20
  21. Coleman CL, Svec TA, Rieger MR, et al. RS Stainless steel vs. nickel-titanium K-files: analysis of instrumentation in curved canals. J Endod 1995;4(21):221.
  22. Gu Y, Kum KY, Perinpanayagam H, et al. Various heat-treated nickel–titanium rotary instruments evaluated in shaped simulated resin canals. J Dent Sci 2017;12(1):14–20. DOI: 10.1016/j.jds.2016.04.006
  23. Zehnder M, Guggenheim B. The mysterious appearance of enterococci in filled root canals. Int Endod J 2009;42(4):277–287. DOI: 10.1111/j.1365-2591.2008.01537.x
  24. Gallardo-Moreno AM, van der Mei HC, Busscher HJ, et al. Adhesion of Enterococcus faecalis grown under subinhibitory concentrations of ampicillin and vancomycin to a hydrophilic and a hydrophobic substratum. FEMS Microbiol Lett 2001;203:75–79. DOI: 10.1111/j.1574-6968.2001.tb10823.x
  25. Devi TP, Priyadarshani S, Dharmani UK, et al. Comparative evaluation of cleaning efficacy of the root canal by K-file and ProTaper Next, Hyflex EDM rotary system an in-vitro study. J Evolution Med Dent Sci 2016;5(100):7365–7369. DOI: 10.14260/jemds/2016/1667
  26. Ha JH, Park SS. Influence of glide path on screw-in effect and torque of nickel-titanium rotary files in simulated resin root canals. Restor Dent Endod 2012;37(4):215–219. DOI: 10.5395/rde.2012.37.4.215
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