International Journal of Clinical Dentistry and Research

Register      Login



Volume / Issue

Online First

Related articles

VOLUME 1 , ISSUE 1 ( January-March, 2017 ) > List of Articles


Cone Beam Computed Tomography Evaluation of Root Canal Anatomy in Primary Molars: An in vitro Study

KS Poonacha, Kishan Naik, Dimple Mehta

Citation Information : Poonacha K, Naik K, Mehta D. Cone Beam Computed Tomography Evaluation of Root Canal Anatomy in Primary Molars: An in vitro Study. Int J Clin Dent Res 2017; 1 (1):15-19.

DOI: 10.5005/jp-journals-10060-0004

License: CC BY 3.0

Published Online: 01-06-2013

Copyright Statement:  Copyright © 2017; The Author(s).



Endodontic treatment requires knowledge of root canal morphology and its commonly occurring variation. The utility and relevance of cone beam computed tomography (CBCT) to the practice of endodontics is reported with increasing frequency in the field of endodontics for successful procedures. Therefore, the present study is undertaken to assess the variation in number and morphology of the root canals of primary molars.

Materials and methods

Extracted primary molars with at least two-thirds of intact root, and 7 to 12 mm length were cleaned in water and stored in 0.5% sodium hypochlorite for 1 week. Thereafter, the anatomy of the root canals of these primary molars was assessed through CBCT.


In the present study, the majority of canals were ribbon shaped. Accessory canals were few and maximum number was found to be present in mesiobuccal root of maxillary first molar and the least in mesiobuccal root of mandibular second molar.


The CBCT proved to be as accurate as the gold standard in studying the presence of accessory canals with clinical applicability. This study highlights the usefulness of CBCT imaging for accurate diagnosis of the unusual canal morphology.

How to cite this article

Joshi N, Deshpande A, Poonacha KS, Bargale S, Naik K, Mehta D. Cone Beam Computed Tomography Evaluation of Root Canal Anatomy in Primary Molars: An in vitro Study. Int J Clin Dent Res 2017;1(1):15-19.

  1. Assessment of root canal morphology of mandibular first premolars in the Indian population using spiral computed tomography: an in vitro study. Indian J Dent Res 2010 Apr-Jun;21(2):169-173.
  2. A study of root canal morphology of human primary molars using computerised tomography: an in vitro study. J Indian Soc Pedod Prev Dent 2005 Mar;23(1):7-12.
  3. Predictability of radiographic diagnosis of variations in root canal anatomy in mandibular incisor and premolar teeth. Int Endod J 1991 Mar;24(2):58-62.
  4. Frequency of second mesiobuccal canals in maxillary molars as determined by use of an operating microscope: a clinical study. J Endod 2000 Nov;26(11):673-674.
  5. Anatomy of primary incisor and molar root canals. Pediatr Dent 1992 Mar-Apr;14(2):117-118.
  6. Transparent model teeth with pulp. Dent Dig 1957;63:154.
  7. Apical microleakage of primary teeth root canal filling materials by clearing technique. J Clin Pediatr Dent 1996 Winter;20(2):113-117.
  8. What the general practitioner should know about cone beam computed tomography technology. Oral Health Dent Manag 2009;8:14-21.
  9. Applications of office based three dimensional technologies including cone beam computed tomography and rapid prototyping in the management of maxillofacial trauma Literature review and a case report. Hong Kong Dent J 2009;6:93-97.
  10. Orban's oral histology and embryology. 11th ed. Mosby Year Book; 1991.
  11. Harty's endodontics in clinical practice. 4th ed. Wright; 1997.
  12. A cone-beam computed tomography study of maxillary first permanent molar root and canal morphology in a Chinese population. J Endod 2010 Sep;36(9):1480-1484.
  13. Endodontic applications of cone-beam volumetric tomography. J Endod 2007 Sep;33(9):1121-1132.
  14. Cone-beam CT diagnostic applications: caries, periodontal bone assessment, and endodontic applications. Dent Clin North Am 2008 Oct;52(4):825-841.
  15. Bilateral root or root canal aberrations in a dental school patient population. J Endod 1994 Jan;20(1):38-42.
  16. A scanning electron microscopic investigation of accessory foramina in the furcation and pulp chamber floor of molar teeth. Oral Surg Oral Med Oral Pathol 1986 Sep;62(3):319-326.
  17. Incidence of patent furcal accessory canals in permanent molars of a Turkish population. Int Endod J 2003 Aug;36(8):515-519.
  18. Morphology of root canal of the primary molar teeth. J Dent Child 1957;24:250.
  19. ; Burns, RC. Pathways of pulp. 6thed. Mosby Year Book; 1994. p. 652.
  20. An examination of root canal anatomy of primary teeth. J Can Dent Assoc (Tor) 1973 Sep;36(9):637-640.
  21. Morphology of the root canal. JADA 1932;19:5, 719-735.
  22. Abscess formation in connection with deciduous molar teeth. Arch Oral Biol 1962 May-Jun;7:373-379.
  23. The anatomy of the root canals of the teeth of the deciduous dentition and of the first permanent molar. New York: William Wood and Co.; 1925.
  24. Special orodental anatomy and physiology and dental histology, human and comparative. 7th ed. Vol. 1. Stapless Boss Ltd.
  25. Anatomy of root canals. IV: deciduous teeth. Aust Dent J 1975 Apr;20(2):101-106.
  26. A comparison between clearing and radiographic techniques in the study of the root-canal anatomy of maxillary first and second molars. Int Endod J 2004 May;37(5):291-296.
PDF Share
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.