Download PDF
CC BY-NC-ND 4.0 · Journal of Health and Allied Sciences NU 2022; 12(02): 101-105
DOI: 10.1055/s-0041-1736268
Original Article

Occurrence and Morphology of MB2 Canals in Maxillary First Molars in an Indian Subpopulation: A Cone Beam Computed Tomography Study

Aditya Shetty
1   Department of Conservative Dentistry and Endodontics, AB Shetty Memorial Institute of Dental Sciences, Nitte (Deemed to be University), Mangalore, India
,
Raksha Bhat 
1   Department of Conservative Dentistry and Endodontics, AB Shetty Memorial Institute of Dental Sciences, Nitte (Deemed to be University), Mangalore, India
,
Bessy Babu
1   Department of Conservative Dentistry and Endodontics, AB Shetty Memorial Institute of Dental Sciences, Nitte (Deemed to be University), Mangalore, India
,
Mithra N. Hegde
1   Department of Conservative Dentistry and Endodontics, AB Shetty Memorial Institute of Dental Sciences, Nitte (Deemed to be University), Mangalore, India
,
Chitharanjan Shetty
1   Department of Conservative Dentistry and Endodontics, AB Shetty Memorial Institute of Dental Sciences, Nitte (Deemed to be University), Mangalore, India
,
Preethesh Shetty
1   Department of Conservative Dentistry and Endodontics, AB Shetty Memorial Institute of Dental Sciences, Nitte (Deemed to be University), Mangalore, India
,
Priyanka Latha Senthilkumar
1   Department of Conservative Dentistry and Endodontics, AB Shetty Memorial Institute of Dental Sciences, Nitte (Deemed to be University), Mangalore, India
› Author Affiliations
› Further Information
Also available at
   Permissions and Reprints

Abstract

Introduction Molars have been known to display varied morphologies. Maxillary first molar is the tooth with the largest volume and most complex root and root canal anatomy; also, possibly the most treated and least understood posterior tooth. The present study aimed to investigate the occurrence and morphology of MB2 canals in maxillary first molars in an Indian subpopulation (Dakshina kannada) using cone beam CT (CBCT) imaging.

Materials and Methods A total of 330 maxillary molars were placed on “U-” shaped modelling wax template, mimicking the natural arch and digitally scanned, of which 196 scans met the inclusion criteria and were analyzed for unusual root canal anatomy by CBCT. To analyze the occurrence and morphology of the canals, the acquired data was examined by two endodontists and discussed till an agreement was reached.

Results The results were subjected to descriptive analysis. The majority of patients 103 (52.6%) teeth showed the presence of MB2 canals. As much as 83.5% of teeth depicted Vertucci's type II morphology, and 16.5% teeth presented with Vertucci's type IV morphology.

Conclusion CBCT overcomes the limitations of conventional radiography. However, the decision to use CBCT in the management of endodontic problems must be based on a case-by-case basis and only when sufficient diagnostic information is not obtained from diagnostic tests.

Keywords

CBCT - MB2 canals - root canal morphology - 3D imaging - maxillary molars


Publication History

Article published online:
24 October 2021

© 2021. Nitte (Deemed to be University). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

Thieme Medical and Scientific Publishers Pvt. Ltd.
A-12, 2nd Floor, Sector 2, Noida-201301 UP, India

 

  • References

  • 1 Borisova-Papancheva T, Panov V, Zaneva D. Frequency of location of a second mesiobuccal canal in maxillary first molars-review. Paper presented at: Varna Medical Forum, Bulgaria; 2017
    PubMedGoogle Scholar
  • 2 Cantatore G, Berutti E, Castellucci A. Missed anatomy: frequency and clinical impact. Endod Topics 2006; 15 (01) 3-1
    CrossrefGoogle Scholar
  • 3 Das S, Warhadpande MM, Redij SA, Jibhkate NG, Sabir H. Frequency of second mesiobuccal canal in permanent maxillary first molars using the operating microscope and selective dentin removal: a clinical study. Contemp Clin Dent 2015; 6 (01) 74-78
    CrossrefPubMedGoogle Scholar
  • 4 Hasan M, Raza Khan F. Determination of frequency of the second mesiobuccal canal in the permanent maxillary first molar teeth with magnification loupes (× 3.5). Int J Biomed Sci 2014; 10 (03) 201-207
    CrossrefPubMedGoogle Scholar
  • 5 Chakradhar Raju RV, Sathe N, Morisetty PK, Veeramachaneni C. Endodontic management of a maxillary first molar with unusual location of second mesio buccal orifice. J Conserv Dent 2010; 13 (03) 162-164
    CrossrefPubMedGoogle Scholar
  • 6 Betancourt P, Navarro P, Cantín M, Fuentes R. Cone-beam computed tomography study of prevalence and location of MB2 canal in the mesiobuccal root of the maxillary second molar. Int J Clin Exp Med 2015; 8 (06) 9128-9134
    PubMedGoogle Scholar
  • 7 Verma P, Love RM. A Micro CT study of the mesiobuccal root canal morphology of the maxillary first molar tooth. Int Endod J 2011; 44 (03) 210-217
    CrossrefPubMedGoogle Scholar
  • 8 Degerness RA, Bowles WR. Dimension, anatomy and morphology of the mesiobuccal root canal system in maxillary molars. J Endod 2010; 36 (06) 985-989
    CrossrefPubMedGoogle Scholar
  • 9 Somma F, Leoni D, Plotino G, Grande NM, Plasschaert A. Root canal morphology of the mesiobuccal root of maxillary first molars: a micro-computed tomographic analysis. Int Endod J 2009; 42 (02) 165-174
    CrossrefPubMedGoogle Scholar
  • 10 Zheng QH, Wang Y, Zhou XD, Wang Q, Zheng GN, Huang DM. A cone-beam computed tomography study of maxillary first permanent molar root and canal morphology in a Chinese population. J Endod 2010; 36 (09) 1480-1484
    CrossrefPubMedGoogle Scholar
  • 11 Peiris HR, Pitakotuwage TN, Takahashi M, Sasaki K, Kanazawa E. Root canal morphology of mandibular permanent molars at different ages. Int Endod J 2008; 41 (10) 828-835
    CrossrefPubMedGoogle Scholar
  • 12 Coutinho-Filho TD, Gurgel-Filho ED, Souza-Filho FJ, Silva EJ. Preliminary investigation to achieve patency of MB2 canal in maxillary molars. Braz J Oral Sci 2012; 11 (03) 373-376
    Google Scholar
  • 13 Abiodun-Solanke IM, Dosumu OO, Shaba PO, Ajayi DM. Prevalence of additional canals in maxillary first molars in a Nigerian population. J Contemp Dent Pract 2008; 9 (07) 81-88
    CrossrefPubMedGoogle Scholar
  • 14 Moorjani P, Thangaraj K, Patterson N. et al. Genetic evidence for recent population mixture in India. Am J Hum Genet 2013; 93 (03) 422-438
    CrossrefPubMedGoogle Scholar
  • 15 Cleghorn BM, Christie WH, Dong CC. The root and root canal morphology of the human mandibular first premolar: a literature review. J Endod 2007; 33 (05) 509-516
    CrossrefPubMedGoogle Scholar
  • 16 Imura N, Hata GI, Toda T, Otani SM, Fagundes MI. Two canals in mesiobuccal roots of maxillary molars. Int Endod J 1998; 31 (06) 410-414
    CrossrefPubMedGoogle Scholar
  • 17 Pomeranz HH, Fishelberg G. The secondary mesiobuccal canal of maxillary molars. J Am Dent Assoc 1974; 88 (01) 119-124
    CrossrefPubMedGoogle Scholar
  • 18 Matherne RP, Angelopoulos C, Kulild JC, Tira D. Use of cone-beam computed tomography to identify root canal systems in vitro. J Endod 2008; 34 (01) 87-89
    CrossrefPubMedGoogle Scholar
  • 19 Bauman R, Scarfe W, Clark S, Morelli J, Scheetz J, Farman A. Ex vivo detection of mesiobuccal canals in maxillary molars using CBCT at four different isotropic voxel dimensions. Int Endod J 2011; 44 (08) 752-758
    CrossrefPubMedGoogle Scholar
  • 20 al Shalabi RM, Omer OE, Glennon J, Jennings M, Claffey NM. Root canal anatomy of maxillary first and second permanent molars. Int Endod J 2000; 33 (05) 405-414
    CrossrefPubMedGoogle Scholar
  • 21 Sempira HN, Hartwell GR. Frequency of second mesiobuccal canals in maxillary molars as determined by use of an operating microscope: a clinical study. J Endod 2000; 26 (11) 673-674
    CrossrefPubMedGoogle Scholar
  • 22 Kalender A, Celikten B, Tufenkci P. et al. Cone beam computed tomography evaluation of maxillary molar root canal morphology in a Turkish Cypriot population. Biotechnol Biotechnol Equip 2016; 30 (01) 145-150
    CrossrefGoogle Scholar
  • 23 Rwenyonyi CM, Kutesa AM, Muwazi LM, Buwembo W. Root and canal morphology of maxillary first and second permanent molar teeth in a Ugandan population. Int Endod J 2007; 40 (09) 679-683
    CrossrefPubMedGoogle Scholar
  • 24 Faramarzi F, Vossoghi M, Sokri A, Shams B, Khoshbin E. Cone Beam Computed Tomography study of root and canal morphology of maxillary first molar in an Iranian population. Avicenna J Dent Res 2015; 7 (01) e24038
    CrossrefGoogle Scholar
  • 25 Peters OA, Laib A, Göhring TN, Barbakow F. Changes in root canal geometry after preparation assessed by high-resolution computed tomography. J Endod 2001; 27 (01) 1-6
    CrossrefPubMedGoogle Scholar
  • 26 Kulild JC, Peters DD. Incidence and configuration of canal systems in the mesiobuccal root of maxillary first and second molars. J Endod 1990; 16 (07) 311-317
    CrossrefPubMedGoogle Scholar
  • 27 Gilles J, Reader A. An SEM investigation of the mesiolingual canal in human maxillary first and second molars. Oral Surg Oral Med Oral Pathol 1990; 70 (05) 638-643
    CrossrefPubMedGoogle Scholar
  • 28 Neaverth EJ, Kotler LM, Kaltenbach RF. Clinical investigation. Clinical investigation (in vivo) of endodontically treated maxillary first molars. J Endod 1987; 13 (10) 506-512
    CrossrefPubMedGoogle Scholar
  • 29 Shetty H, Sontakke S, Karjodkar F, Gupta P, Mandwe A, Banga KS. A Cone Beam Computed Tomography (CBCT) evaluation of MB2 canals in endodontically treated permanent maxillary molars. A retrospective study in Indian population. J Clin Exp Dent 2017; 9 (01) e51-e55
    PubMedGoogle Scholar
  • 30 Li G. Patient radiation dose and protection from cone-beam computed tomography. Imaging Sci Dent 2013; 43 (02) 63-69
    CrossrefPubMedGoogle Scholar