1. bookVolume 22 (2018): Issue 3 (November 2018)
Journal Details
License
Format
Journal
eISSN
2335-0245
First Published
06 Mar 2014
Publication timeframe
3 times per year
Languages
English
access type Open Access

Study of Internal Morphology of Root-Canal Treated Single-Rooted Mandibular Second Molars in a Greek Population

Published Online: 29 Oct 2018
Page range: 146 - 149
Received: 08 Nov 2017
Accepted: 12 Jun 2018
Journal Details
License
Format
Journal
eISSN
2335-0245
First Published
06 Mar 2014
Publication timeframe
3 times per year
Languages
English
Summary

Background/Aim: To determine the prevalence of single-rooted mandibular second molars in a Greek population and examine their internal morphology with the aid of intraoral periapical radiography.

Material and Methods: Clinical records of 531 root-canal treated permanent single-rooted mandibular second molars were collected from the Postgraduate Clinic of the Department of Endodontology, Dental School, Aristotle University of Thessaloniki, Greece and from private dental clinics in the same city. The clinical records, along with the radiographic examination, were evaluated to determine the overall frequency of single-rooted mandibular second molars together with the number of root canals and their course. The root canals were categorized using Vertucci’s classification with the addition of 3 further types where appropriate.

Results: Out of 531 mandibular second molars; 102 (19.2%) presented a single root; 427 (80.4%) presented two roots; 2 (0.4%) presented three roots. In a total of 102 single-rooted mandibular second molars 31 (30.3%) presented with Type I, 18 (17.6%) with Type II, 14 (13.7%) with Type IV, 7 (7%) with 3 additional root canal types and 32 (31.4%) with a C-shaped root canal system.

Conclusions: One out five mandibular second molars was single-rooted in a Greek population. The internal morphology of these teeth can be very complex with regard to the numbers and courses of root canals.

Keywords

1. Vertucci FJ. Root canal morphology and its relationship to endodontic procedures. Endod Topics, 2005;10:3–29.10.1111/j.1601-1546.2005.00129.xSearch in Google Scholar

2. Kim SY, Kim BS, Kim Y. Mandibular second molar root canal morphology and variants in a Korean subpopulation. Int Endod J, 2016;49:136–144.10.1111/iej.12437Search in Google Scholar

3. Celikten B, Tufenkci P, Aksoy U, Kalender A, Kermeoglu F, Dabaj P, Orhan K. Cone beam CT evaluation of mandibular molar root canal morphology in a Turkish Cypriot population. Clin Oral Investig, 2016;20:2221–2226.10.1007/s00784-016-1742-2Search in Google Scholar

4. Neelakantan P, Subbarao C, Subbarao CV, Ravindranath M. Root and canal morphology of mandibular second molars in an Indian population. J Endod, 2010;36:1319–1322.10.1016/j.joen.2010.04.001Search in Google Scholar

5. Demirbuga S, Sekerci AE, Dinçer AN, Cayabatmaz M, Zorba YO. Use of cone-beam computed tomography to evaluate root and canal morphology of mandibular first and second molars in Turkish individuals. Med Oral Patol Oral Cir Bucal, 2013;18:737–744.10.4317/medoral.18473Search in Google Scholar

6. Gulabivala K, Aung TH, Alavi A, Ng YL. Root and canal morphology of Burmese mandibular molars. Int Endod J, 2001;34:359–370.10.1046/j.1365-2591.2001.00399.xSearch in Google Scholar

7. Gulabivala K, Opasanon A, Ng YL, Alavi A. Root and canal morphology of Thai mandibular molars. Int Endod J, 2002;35:478–485.10.1046/j.1365-2591.2002.00452.xSearch in Google Scholar

8. Al-Qudah AA, Awawdeh LA. Root and canal morphology of mandibular first and second molar teeth in a jordanian population. Int Endod J, 2009;42:775–784.10.1111/j.1365-2591.2009.01578.xSearch in Google Scholar

9. Ahmed HA, Abu-Bakr NH, Yahia NA, Ibrahim YE. Root and canal morphology of permanent mandibular molars in a Sudanese population. Int Endod J, 2007;40:766–771.10.1111/j.1365-2591.2007.01283.xSearch in Google Scholar

10. Peiris R, Takahashi M, Sasaki K, Kanazawa E. Root and canal morphology of permanent mandibular molars in a Sri Lankan population. Odontology, 2007;95:16–23.10.1007/s10266-007-0074-8Search in Google Scholar

11. Rahimi S, Shahi S, Lotfi M, Zand V, Abdolrahimi M, Es’haghi R. Root canal configuration and the prevalence of C-shaped canals in mandibular second molars in an Iranian population. J Oral Sci, 2008;50:9–13.10.2334/josnusd.50.9Search in Google Scholar

12. Zhang R, Wang H, Tian YY, Yu X, Hu T, Dummer PMH. Use of cone-beam computed tomography to evaluate root and canal morphology of mandibular molars in Chinese individuals. Int Endod J, 2011;44:990–999.10.1111/j.1365-2591.2011.01904.xSearch in Google Scholar

13. Silva EJNL, Nejaim Y, Silva AV, Haiter-Neto F, Cohenca N. Evaluation of root canal configuration of mandibular molars in a Brazilian population by using cone-beam computed tomography: An in vivo study. J Endod, 2013;39:849–852.10.1016/j.joen.2013.04.030Search in Google Scholar

14. Nur BG, Ok E, Altunsoy M, Aglarci OS, Colak M, Gungor E. Evaluation of the root and canal morphology of mandibular permanent molars in a south-eastern Turkish population using cone-beam computed tomography. Eur J Dent, 2014;8:154–159.10.4103/1305-7456.130584Search in Google Scholar

15. Torres A, Jacobs R, Lambrechts P, Brizuela C, Cabrera C, Concha G et al. Characterization of mandibular molar root and canal morphology using cone beam computed tomography and its variability in Belgian and Chilean population samples. Imaging Sci Dent, 2015;45:95–101.10.5624/isd.2015.45.2.95Search in Google Scholar

16. Akhlaghi NM, Abbas FM, Mohammadi M, Shamlo MRK, Radmehr O, Kaviani R et al. Radicular anatomy of permanent mandibular second molars in an Iranian population: A preliminary study. Dent Res J (Isfahan), 2016;13:362–366.10.4103/1735-3327.187883Search in Google Scholar

17. Vertucci FJ. Root canal anatomy of the human permanent teeth. Oral Surg Oral Med Oral Pathol, 1984;58:589–599.10.1016/0030-4220(84)90085-9Search in Google Scholar

18. Fan W, Fan B, Gutmann JL, Fan M. Identification of a C-shaped canal system in mandibular second molars-Part III: Anatomic features revealed by digital subtraction radiography. J Endod, 2008;34:1187–1190.10.1016/j.joen.2008.06.013Search in Google Scholar

19. Fan B, Cheung GSP, Fan M, Gutmann JL, Fan W. C-shaped canal system in mandibular second molars: Part II-Radiographic features. J Endod, 2004;30:904–908.10.1097/01.don.0000136206.73115.93Search in Google Scholar

20. Kato A, Ziegler A, Higuchi N, Nakata K, Nakamura H, Ohno N. Aetiology, incidence and morphology of the C-shaped root canal system and its impact on clinical endodontics. Int Endod J, 2014;47:1012–1033.10.1111/iej.12256Search in Google Scholar

21. Von Zuben M, Martins JNR, Berti L, Cassim I, Flynn D, Gonzalez JA et al. Worldwide prevalence of mandibular second molar C-shaped morphologies evaluated by cone-beam computed tomography. J Endod, 2017;43:1442–1447.10.1016/j.joen.2017.04.016Search in Google Scholar

22. Lambrianidis T, Lyroudia K, Pandelidou O, Nicolaou A. Evaluation of periapical radiographs in the recongnition of C-shaped mandibular second molars. Int Endod J, 2001;34:458–462.10.1046/j.1365-2591.2001.00417.xSearch in Google Scholar

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