sdj-10121

Root Canal System and Morphology of Mandibular Second Molar Using Cone Beam Computed Tomography

 Mohammed A. Mahmood*

*Department of Dental Basic Sciences, College of Dentistry, Sulaimani University, Sulaimani, Iraq.

Submitted: 08/06/2020; Accepted: 26/10/2020; Published 01/12/2020

DOI: https://doi.org/10.17656/sdj.10121

Abstract

Objective: As human 2nd molar teeth demonstrate considerable anatomic complexities and abnormalities in the number of roots and root canals, this study aimed to determine and investigate the root canal system of the mandibular 2nd molar teeth of a sample using cone-beam computed tomography. Variation can be found among different ethnic backgrounds. However, cone-beam computed tomography (CBCT) images eliminate the superimposition of anatomic structures.          

Methods: A total of 350 CBCTs were examined in this study. The analysis was conducted using the GALILEOS Viewer computer software program equipped with a disk containing the CBCT data. The Vertucci classification was used to categorize the data and the chi-square test to compare age groups, gender, and mouth sides.      

Results: Twenty-one two-handed CBCTs met the study criteria. Mandibular 2nd molar teeth were examined, and type 2 canal configuration was the most prevalent in the mesial root (57.1%), whereas type 1 canal configuration was the most prevalent in the distal canal (96.5%). Gender had no significant effect on the root canals' configuration except for the distal root of the right side. In contrast, age had a significant effect on root canal type, except for the right mesial root. There was a strong correlation between root canal types on the right and left sides.  

Conclusions: Type 1 and 2 root canal types were most prevalent in the distal and mesial root canal. Age was found to affect root canal type, and a correlation between right and left side root canal types was detected.

Keywords: Mandibular 2nd molar, CBCT, Vertucci classification, Root canal system.                                                                                                                                                                                   Full Article - PDF                                                                                                                                                                                                                                   

References:

1. Fava LR, Weinfeld I, Fabri FP, Pais CR. Four second molars with single roots and single canals in the same patient. Int Endod J. 2000;33(2):138- 42.

2. Ingle JI, Bakland LK, Baumgartner JC. Ingle's endodontics/John I. Ingle, Leif K. Bakland, J. Craig Baumgartner: Hamilton, Ont.: BC Decker; 2008.

3. Gulabivala K, Aung TH, Alavi A, Ng YL. Root and canal morphology of Burmese mandibular molars. Int Endod J. 2001;34(5):359-70.

4. Peiris R, Takahashi M, Sasaki K, Kanazawa E. Root and canal morphology of permanent mandibular molars in a Sri Lankan population. Odontology. 2007;95(1):16-23.

5. Vertucci FJ. Root canal morphology and its relationship to endodontic procedures. Endodontic topics. 2005;10(1):3-29.

6. Hargreaves KM. Cohen's Pathways of the Pulp. 10th. St Louis, Mo, USA: Mosby. 2016.

7. Siqueira JF Jr. Aetiology of root canal treatment failure: why well-treated teeth can fail. Int Endod J. 2001;34(1):1-10.

8. Negishi J, Kawanami M, Ogami E. Risk analysis of failure of root canal treatment for teeth with inaccessible apical constriction. J Dent. 2005;33(5):399-404.

9. Plotino G, Tocci L, Grande NM, Testarelli L, Messineo D, Ciotti M, et al. Symmetry of root and root canal morphology of maxillary and mandibular molars in a white population: a cone- beam computed tomography study in vivo. J Endod. 2013;39(12):1545-8.

10. Wang Y, Zheng QH, Zhou XD, Tang L, Wang Q, Zheng GN, et al. Evaluation of the root and canal morphology of mandibular first permanent molars in a western Chinese population by cone-beam computed tomography. J Endod. 2010;36(11):1786-9.

11. Nanci A. Ten Cate's Oral Histology-E-Book: Development, Structure, and Function: Elsevier Health Sciences; 2017.

12. Vertucci FJ. Root canal anatomy of the human permanent teeth. Oral Surg Oral Med Oral Pathol. 1984;58(5):589-99.

13. Bansal R, Hegde S, Astekar MS. Classification of root canal configurations: a review and a new proposal of nomenclature system for root canal configuration. J Clin Diagn Res. 2018;12(5):1-5.

14. Patel S, Durack C, Abella F, Roig M, Shemesh H, Lambrechts P, et al. European Society of Endodontology position statement: the use of CBCT in endodontics. Int Endod J. 2014;47(6):502-4.

15. Scarfe WC, Levin MD, Gane D, Farman AG. Use of cone beam computed tomography in endodontics. Int J Dent. 2009;2009:634567.

16. Gulabivala K, Opasanon A, Ng YL, Alavi A. Root and canal morphology of Thai mandibular molars. Int Endod J. 2002;35(1):56-62.

17. Manning SA. Root canal anatomy of mandibular second molars. Part II. C-shaped canals. Int Endod J. 1990;23(1):40-5.

 © The Authors, published by University of Sulaimani, College of Dentistry

This work is licensed under a Creative Commons Attribution 4.0 International License.