The Journal of Contemporary Dental Practice

Register      Login

SEARCH WITHIN CONTENT

FIND ARTICLE

Volume / Issue

Online First

Archive
Related articles

VOLUME 18 , ISSUE 11 ( November, 2017 ) > List of Articles

RESEARCH ARTICLE

Extrusion of Debris from Primary Molar Root Canals following Instrumentation with Traditional and New File Systems

Bhagyashree Thakur, Ajinkya M Pawar, Anda Kfir, Prasanna Neelakantan

Citation Information : Thakur B, Pawar AM, Kfir A, Neelakantan P. Extrusion of Debris from Primary Molar Root Canals following Instrumentation with Traditional and New File Systems. J Contemp Dent Pract 2017; 18 (11):1040-1044.

DOI: 10.5005/jp-journals-10024-2172

Published Online: 01-11-2017

Copyright Statement:  Copyright © 2017; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Introduction

To assess the amount of debris extruded apically during instrumentation of distal canals of extracted primary molars by three instrument systems [ProTaper Universal (PTU), ProTaper NEXT (PTN), and self-adjusting file (SAF)] compared with conventional stainless steel hand K-files (HF, control).

Materials and methods

Primary mandibular molars (n = 120) with a single distal canal were selected and randomly divided into four groups (n = 30) for root canal instrumentation using group I, HF (to size 0.30/0.02 taper), group II, PTU (to size F3), group III, PTN (to size X3), and group IV, SAF. Debris extruded during instrumentation was collected in preweighed Eppendorf tubes, stored in an incubator at 70°C for 5 days and then weighed. Statistical analysis was performed by one-way analysis of variance (ANOVA), followed by Turkey's post hoc test (p = 0.05).

Results

All the groups resulted in extrusion of debris. There was statistically significant difference (p < 0.001) in the debris extrusion between the three groups: HF (0.00133 ± 0.00012), PTU (0.00109 ± 0.00005), PTN (0.00052 ± 0.00008), and SAF (0.00026 ± 0.00004).

Conclusion

Instrumentation with SAF resulted in the least debris extrusion when used for shaping root canals of primary molar teeth.

Clinical significance

Debris extrusion in primary teeth poses an adverse effect on the stem cells and may also alter the permanent dental germ. Debris extrusion is rarely reported for primary teeth and it is important for the clinician to know which endodontic instrumentation leads to less extrusion of debris.

How to cite this article

Thakur B, Pawar AM, Kfir A, Neelakantan P. Extrusion of Debris from Primary Molar Root Canals following Instrumentation with Traditional and New File Systems. J Contemp Dent Pract 2017;18(11):1040-1044.


PDF Share
  1. Evaluation of apically extruded debris and irrigant produced by different Nickel–titanium instrument systems in primary teeth. J Contemp Dent Pract 2015 Nov;16(11):864-868.
  2. Treatment of deep carious lesions by complete excavation or partial removal: a critical review. J Am Dent Assoc 2008 Jun;139(6):705-712.
  3. Pulp therapy in the primary dentition. Curr Opin Dent 1991 Oct;1(5):556-563.
  4. 21st-century endodontics. J Am Dent Assoc 2000 Jun;131 (Suppl):39S-46S.
  5. Use of nickel-titanium rotary files for root canal preparation in primary teeth. Pediatr Dent 2000 Jan-Feb;22(1):77-78.
  6. Application of Ni-Ti rotary files for pulpectomy in primary molars. J Dent Sci 2006;1(1):10-15.
  7. Comparison between rotary and manual instrumentation in primary teeth. J Clin Pediatr Dent 2008 Summer;32(4):295-298.
  8. Evaluation of apically extruded debris using two NiTi systems associated with two irrigation techniques in primary teeth. J Clin Pediatr Dent 2016;40(6):490-495.
  9. Flare-ups in endodontics: I. Etiological factors. J Endod 1985 Nov;11(11):472-478.
  10. Microbial causes of endodontic flare-ups. Int Endod J 2003 Jul;36(7):453-463.
  11. The self-adjusting file instrumentation results in less debris extrusion apically when compared to WaveOne and ProTaper NEXT. J Conserv Dent 2015 Mar-Apr;18(2):89-93.
  12. Apical extrusion of debris by supplementary files used for retreatment: an ex vivo comparative study. J Conserv Dent 2016;19(2):125-129.
  13. Quantitative evaluation of apical extrusion of intracanal bacteria using K3, Mtwo, RaCe and protaper rotary systems: an in vitro study. J Conserv Dent 2013 Jul-Aug;16(4):300-303.
  14. The shaping movement: fifth-generation technology. Dent Today 2013 Apr;32(4):94, 96-99.
  15. The self-adjusting file (SAF) system: an evidence-based update. J Conserv Dent 2014 Sep-Oct;17(5):401-419.
  16. An in vitro comparison of apically extruded debris and instrumentation times with ProTaper Universal, ProTaper next, Twisted File Adaptive, and HyFlex instruments. J Endod 2014 Oct;40(10):1638-1641.
  17. Assessment of apically extruded debris produced by the self-adjusting file system. J Endod 2014 Apr;40(4):526-529.
  18. Comparative evaluation of apically extruded debris during root canal preparation using ProTaper™, Hyflex™ and Waveone™ rotary systems. J Conserv Dent 2014 Mar-Apr;17(2):129-132.
  19. A comparison of canal preparations in straight and curved root canals. Oral Surg Oral Med Oral Pathol 1971 Aug;32(2):271-275.
  20. A comparison of weights of debris extruded apically by conventional filing and canal master techniques. J Endod 1991 Jun;17(6):275-279.
  21. Evaluation of apically extruded debris during root canal preparation in primary molar teeth using three different rotary systems and hand files. Int J Paediatr Dent 2016 Sep;26(5):357-363.
  22. Apical extrusion of debris and irrigants using hand and three rotary instrumentation systems – an in vitro study. Contemp Clin Dent 2010 Oct-Dec;1(4):234-236.
  23. An in vitro study of apical extrusion of sodium hypochlorite during endodontic canal preparation. J Endod 1995 Dec;21(12):587-591.
  24. Apically extruded dentin debris by reciprocating single-file and multi-file rotary system. Clin Oral Investig 2015 Mar;19(2):357-361.
  25. Effect of irrigants on the survival of human stem cells of the apical papilla in a platelet-rich plasma scaffold in human root tips. J Endod 2011 Aug;37(8):1109-1115.
  26. The effects of periradicular inflammation and infection on a primary tooth and permanent successor. J Clin Pediatr Dent 2005 Spring;29(3):193-200.
  27. Progressive versus constant tapered shaft design using NiTi rotary instruments. Int Endod J 2003 Apr;36(4):288-295.
  28. Quantitative evaluation of the amount of apically extruded debris using 3 different rotary instrumentation systems. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2006 Feb;101(2):250-257.
  29. Apical extrusion of debris using ProTaper Universal and ProTaper next rotary systems. Int Endod J 2015 Mar;48(3):283-286.
  30. Quantitative evaluation of apically extruded debris during root canal instrumentation with ProTaper Universal, ProTaper next, WaveOne, and self-adjusting file systems. Eur J Dent 2014 Oct-Dec;8(4):504-508.
  31. Push-out bond strength of root fillings made with C-Point and BC sealer versus gutta-percha and AH Plus after the instrumentation of oval canals with the self-adjusting file versus WaveOne. Int Endod J 2016 Apr;49(4):374-381.
  32. The sealing ability and retention characteristics of mineral trioxide aggregate in a model of apexification. J Endod 2002 May;28(5):386-390.
  33. Debris and irrigant extrusion potential of 2 rotary systems and irrigation needles. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2011 Oct;112(4):e31-e35.
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.