Published December 1, 2015 | Version v1
Journal article Open

Endodontic Management of Mandibular Second Molars with 'C' Shaped Root Canal Configuration – Reports of Three Cases

  • 1. Department of Conservative Dentistry, Sri Aurobindo College of Dentistry, Devi Ahilya University, Indore (India)
  • 2. Department of Endodontics, Sri Aurobindo College of Dentistry, Devi Ahilya University, Indore (India)

Description

Recognition of unusual variations in the canal configuration is critical because it has been established that the root with a single tapering canal and an apical foramen is an exception rather than the rule. The C- shaped configuration, which is an important anatomic variation, is characterized by a C-shaped groove that connects one or more root canals. This groove can occur anywhere along the root canal system, making it difficult to diagnose and treat. Furthermore, C-shaped canals are challenging if not possible to predict radio graphically. The aim of presented three case reports is to describe different types of C-shaped canals in mandibular second molars and their endodontic management. In the first case report of tooth #47, preoperative radiograph showed fusion of roots, and the root canal outline were not clear. Therefore CBCT was advised to the patient confirming the C shaped root canal configuration, which persisted along the entire length and width of the C-shaped root canal and exits at single apical foramen. In the second case report of tooth #47, the anatomy of the floor of the pulp chamber suggested an incomplete “C” with the fusion of the mesiolingual and distal root canals and a separate orifice for mesiobuccal root canal giving the appearance of semicolon (;) The third case report of tooth #47 radiographically, the tooth had unusual root morphology with a single conical root. Clinically, the pulp chamber floor had a C-shaped continuous trough.

Files

51-59.pdf

Files (318.1 kB)

Name Size Download all
md5:c7838ccb8a012b4e8a68c28af0120889
318.1 kB Preview Download

Additional details

References

  • 1. Abou-Rass M, Frank L, Glick DH. The anticurvature method to prepare the curved root canal. J Am Dent Assoc1980; 101:792-4.
  • 2. Cooke HG, Cox FL. C-shaped canal configurations in mandibular molars. J Am Dent Assoc 1979; 99:836-9.
  • 3. Weine FS, Pasiewicz RA, Rice RT. Canal configuration of the mandibular second molar using a clinically oriented in vitro method. J Endod 1988;14: 207-13.
  • 4. Barril I, Cochet JY, Ricci C. Le traitement des canaux presentant une configuration dite en'C'. Revue Francaise D'endodontie.1989; 8:47-58.
  • 5. Dankner E, Friedman S, Stabholz. Bilateral C-shaped configuration in maxillary first molars. J Endod 1990; 16: 601-03.
  • 6. Fan B, Cheung GSP, Fan M, Gutmann JL, Bian Z. Cshaped canal system in mandibular second molars: Part I - Anatomical features. J Endod 2004; 30: 899-903.
  • 7. Lambrianidis T, LyroudiaY K, Pandelidou, Nicholas. Periapical evaluation of radiographs in the recognition of mandibular C-shaped second molars. Int Endod J 2001;34:458-62
  • 8. Melton DC, Krell KV, Fuller MW. Anatomical and histological features of C-shaped canals in mandibular second molars. J Endod 1991;17:384-8.
  • 9. Barnett F. Mandibular molar with C-shaped canal. Endod. Dent Traumatol 1986; 2:79-81
  • 10. Cohen S, Burns R. Pathways of the Pulp, 7th EDN. St. Louis, USA: CVMosby, 1994:184-9.
  • 11. Pear Tree J, Gomes MM, Primiano C P, Brave CSD. Uncommon endodôntica anatomy: the canal in form of "C". RBO 2000; 57:43-45.
  • 12. Yang ZP, Yang SF, Lin YC, Shay JC, Chi CY. C-shaped root canals in mandibular second molars in Chinese population. Endod Dent Traumatol 1988; 4:160-3.
  • 13. Rice RT, Gilbert BO. An unusual canal configuration in mandibular first molar. J Endod 1987;13:513-5
  • 14. Fan B, Cheung GSP, Fan M, Gutmann J.L, Fan W. Cshaped canal second system in mandibular molars: Part II - Radiographic features. J Endod 2004;30: 904-08.
  • 15. Jerome CE. C-shaped root canal systems: Diagnosis, treatment, and restoration. Gen Dent 1994; 7
  • 16. Manning S. Root canal anatomy of mandibular second molars. Part II C-shaped canals. Int Endod J 1990; 23:40-45.
  • 17. Walid N. The use of two pluggers for obturation of an uncommon C shaped canal. J Endod 2000; 26: 422-24 Blackwell Science, Ltd
  • 18. Evaluation of periapical radiographs in the recognition of C-shaped mandibular second molars T. Lambrianidis1, K. Lyroudia , O. Pandelidou & A. Nicolaou International Endodontic Journal, 2001;34: 458-462.
  • 19. Matherne RP, Angelopoulos C, Kulild JC, Tira D. Use of cone-beam computed tomography to identify root canal systems in vitro. J Endod 2008;34:87-9
  • 20. Parkinson CR, Sasov A. High-resolution nondestructive 3D interrogation of dentin using X-ray nanotomography. Dent Mater 2008;24:773-7.
  • 21. Seo D, Yi Y, Roh B. The effect of preparation designs on the marginal and internal gaps in Cerec3 partial ceramic crowns. J Dent 2009;37:374-82.
  • 22. Somma F, Leoni D, Plotino G, Grande NM, Plasschaert A. Root canal morphology of the mesiobuccal root of maxillary first molars: A microcomputed tomographic analysis. Int Endod J 2009;42:165-74
  • 23. Gu Y, Lee JK, Spångberg LS, Lee Y, Park CM, Seo DG, et al. Minimum intensity projection for in-depth morphology study of mesiobuccal root.Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2011;112:671-7
  • 24. Lofthag-Hansen S, Huumonen S, Gröndahl K, Gröndahl HG. Limited cone-beam CT and intraoral radiography for the diagnosis of periapical pathology. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2007;103:114-9.
  • 25. Cotton TP, Geisler TM, Holden DT, Schwartz SA, Schindler WG. Endodontic applications of cone-beam volumetric tomography. J Endod 2007;33:1121-32.
  • 26. Patel S, Dawood A, Ford TP, Whaites E. The potential applications of cone beam computed tomography in the management of endodontic problems. Int Endod J 2007;40:818-30.
  • 27. Kothari HJ, Kumar R. Endodontic management of a mandibular second premolar with perforating internal resorption by using MTA and cone beam computed tomography as a diagnostic aid. J Conserv Dent 2013;16:380-4.
  • 28. Chhabra N, Singbal KP, Chhabra TM. Type I canal configuration in a single rooted maxillary first molar diagnosed with an aid of cone beam computed tomographic technique: A rare case report. J Conserv Dent 2013;16:385-7.