Volume 4, Issue 1 (3-2019)
J Res Dent Maxillofac Sci 2019, 4(1): 30-35 |
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Shakeri F, Azizi H, Razian F, Haghanifar S, Hoshyari N. Prevalence of Mid-Mesial Canal and Isthmuses in Mandibular First and Second Molars in an Iranian Population. J Res Dent Maxillofac Sci 2019; 4 (1) :30-35
URL: http://jrdms.dentaliau.ac.ir/article-1-233-en.html
URL: http://jrdms.dentaliau.ac.ir/article-1-233-en.html
1- Post-graduate student, Department of Endodontics, Dental Faculty
2- Dentist
3- Assistant professor, Department of Oral and Maxillofacial Radiology, Dental Faculty
4- Assistant professor, Department of Endodontics, Dental Faculty, Mazandaran University of Medical Sciences, Sari, Iran , narjeshoshyari@rocketmail.com
2- Dentist
3- Assistant professor, Department of Oral and Maxillofacial Radiology, Dental Faculty
4- Assistant professor, Department of Endodontics, Dental Faculty, Mazandaran University of Medical Sciences, Sari, Iran , narjeshoshyari@rocketmail.com
Abstract: (3671 Views)
Background and Aim: It is essential to know the internal root canal anatomy to reach a successful root canal debridement and a subsequent successful root canal obturation. Due to the importance of knowing the complexity of mid-mesial (MM) canals and isthmuses and how to deal with these anatomic variations, in this study, we examined the incidence and prevalence of the MM canal and isthmuses in mandibular first and second molars.
Materials and Methods: In this cross-sectional study, cone-beam computed tomography (CBCT) records of patients presenting for diagnostic purposes to a radiology center in the city of Sari were used. A total of 207 mandibular first molars (81 males and 126 females) and 235 mandibular second molars (94 males and 140 females) were examined. Data were entered into SPSS 16 software. Descriptive data were presented using frequency percentage with the significance level of less than 0.05.
Results: Among the mandibular first molars that were examined in the study population, the prevalence of the MM canal was reported to be 2.5% in males and 4% in females. Similarly, the prevalence of the MM canal in the mandibular second molars was reported to be 2.1% in males and 3.6% in females. Also, the prevalence of isthmuses was 81.2% (males) and 78.9% (females) in the first molars and 78.7% (males) and 70.7% (females) in the second molars.
Conclusion: Based on the results of this study, it is important for dentists to be familiar with the root canal anatomy and to consider the referral of complex cases to endodontists.
Materials and Methods: In this cross-sectional study, cone-beam computed tomography (CBCT) records of patients presenting for diagnostic purposes to a radiology center in the city of Sari were used. A total of 207 mandibular first molars (81 males and 126 females) and 235 mandibular second molars (94 males and 140 females) were examined. Data were entered into SPSS 16 software. Descriptive data were presented using frequency percentage with the significance level of less than 0.05.
Results: Among the mandibular first molars that were examined in the study population, the prevalence of the MM canal was reported to be 2.5% in males and 4% in females. Similarly, the prevalence of the MM canal in the mandibular second molars was reported to be 2.1% in males and 3.6% in females. Also, the prevalence of isthmuses was 81.2% (males) and 78.9% (females) in the first molars and 78.7% (males) and 70.7% (females) in the second molars.
Conclusion: Based on the results of this study, it is important for dentists to be familiar with the root canal anatomy and to consider the referral of complex cases to endodontists.
Type of Study: Original article |
Subject:
Radiology
References
1. Martins JN, Marques D, Silva EJ, Caramês J, Versiani M. Prevalence Studies on Root Canal Anatomy Using Cone-beam Computed Tomographic Imaging: A Systematic Review. Journal of endodontics. 2019 Mar;45(4):372-86. [DOI:10.1016/j.joen.2018.12.016] [PMID]
2. Abou-Rass M, Frank AL, Glick DH. The anticurvature filing method to prepare the curved root canal. J Am Dent Assoc. 1980 Nov;101(5):792-4. [DOI:10.14219/jada.archive.1980.0427] [PMID]
3. Luan X, Ito Y, Diekwisch TG. Evolution and development of Hertwig's epithelial root sheath. Dev Dyn. 2006 May;235(5):1167-80. [DOI:10.1002/dvdy.20674] [PMID] [PMCID]
4. Hamamoto Y, Nakajima T, Ozawa H, Uchida T. Production of amelogenin by enamel epithelium of Hertwig's root sheath. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1996 Jun;81(6):703-9. [DOI:10.1016/S1079-2104(96)80077-1]
5. Bhosale S, Balasubramanian A, Maroli R, Jayasree S. Middle Mesial Canal: A Common Finding-A Report of Three Cases. J Contemp Dent. 2014 Sep;4(3):152. [DOI:10.5005/jp-journals-10031-1086]
6. Vertucci FJ, Williams RG. Root canal anatomy of the mandibular first molar. J N J Dent Assoc. 1974 Spring;45(3):27-8.
7. Holtzmann L. Root canal treatment of a mandibular first molar with three mesial root canals. Int Endod J. 1997 Nov;30(6):422-3. [DOI:10.1111/j.1365-2591.1997.tb00735.x] [PMID]
8. Gu L, Wei X, Ling J, Huang X. A microcomputed tomographic study of canal isthmuses in the mesial root of mandibular first molars in a Chinese population. J Endod. 2009 Mar;35(3):353-6. [DOI:10.1016/j.joen.2008.11.029] [PMID]
9. Srinivasan VM, Chintalapani G, Duckworth EA, Kan P. Advanced cone-beam CT venous angiographic imaging. Journal of neurosurgery. 2018 Jul;129(1):114-20. [DOI:10.3171/2017.2.JNS162997] [PMID]
10. Lin Z, Hu Q, Wang T, Ge J, Liu S, Zhu M, Wen S. Use of CBCT to investigate the root canal morphology of mandibular incisors. Surg Radiol Anat. 2014 Nov;36(9):877-82. [DOI:10.1007/s00276-014-1267-9] [PMID]
11. Tahmasbi M, Jalali P, Nair MK, Barghan S, Nair UP. Prevalence of Middle Mesial Canals and Isthmi in the Mesial Root of Mandibular Molars: An In Vivo Cone-beam Computed Tomographic Study. J Endod. 2017 Jul;43(7):1080-3. [DOI:10.1016/j.joen.2017.02.008] [PMID]
12. Versiani MA, Ordinola-Zapata R, Keleş A, Alcin H, Bramante CM, Pécora JD, Sousa-Neto MD. Middle mesial canals in mandibular first molars: A micro-CT study in different populations. Arch Oral Biol. 2016 Jan;61:130-7. [DOI:10.1016/j.archoralbio.2015.10.020] [PMID]
13. Chavda SM, Garg SA. Advanced methods for identification of middle mesial canal in mandibular molars: an in vitro study. Endodontology. 2016;28(2):92-96. [DOI:10.4103/0970-7212.195425]
14. Azim AA, Deutsch AS, Solomon CS. Prevalence of middle mesial canals in mandibular molars after guided troughing under high magnification: an in vivo investigation. J Endod. 2015 Feb;41(2):164-8. [DOI:10.1016/j.joen.2014.09.013] [PMID]
15. Nosrat A, Deschenes RJ, Tordik PA, Hicks ML, Fouad AF. Middle mesial canals in mandibular molars: incidence and related factors. J Endod. 2015 Jan;41(1):28-32. [DOI:10.1016/j.joen.2014.08.004] [PMID]
16. Pomeranz HH, Eidelman DL, Goldberg MG. Treatment considerations of the middle mesial canal of mandibular first and second molars. J Endod. 1981 Dec;7(12):565-8. [DOI:10.1016/S0099-2399(81)80216-6]
17. Gupta S, Sinha DJ, Gowhar O, Tyagi SP, Singh NN, Gupta S. Root and canal morphology of maxillary first premolar teeth in north Indian population using clearing technique: An in vitro study. J Conserv Dent. 2015 May-Jun;18(3):232-6. [DOI:10.4103/0972-0707.157260] [PMID] [PMCID]
18. KUTTLER Y. Microscopic investigation of root apexes. J Am Dent Assoc. 1955 May;50(5):544-52. [DOI:10.14219/jada.archive.1955.0099] [PMID]
19. Schäfer E, Diez C, Hoppe W, Tepel J. Roentgenographic investigation of frequency and degree of canal curvatures in human permanent teeth. J Endod. 2002 Mar;28(3):211-6. [DOI:10.1097/00004770-200203000-00017] [PMID]
20. de Pablo OV, Estevez R, Péix Sánchez M, Heilborn C, Cohenca N. Root anatomy and canal configuration of the permanent mandibular first molar: a systematic review. J Endod. 2010 Dec;36(12):1919-31. [DOI:10.1016/j.joen.2010.08.055] [PMID]
21. von Arx T. Frequency and type of canal isthmuses in first molars detected by endoscopic inspection during periradicular surgery. Int Endod J. 2005 Mar;38(3):160-8. [DOI:10.1111/j.1365-2591.2004.00915.x] [PMID]
22. Sert S, Bayirli GS. Evaluation of the root canal configurations of the mandibular and maxillary permanent teeth by gender in the Turkish population. J Endod. 2004 Jun;30(6):391-8. [DOI:10.1097/00004770-200406000-00004] [PMID]
23. Kontakiotis EG, Tzanetakis GN. Four canals in the mesial root of a mandibular first molar. A case report under the operating microscope. Aust Endod J. 2007 Aug;33(2):84-8. [DOI:10.1111/j.1747-4477.2007.00068.x] [PMID]
24. Fabra-Campos H. Three canals in the mesial root of mandibular first permanent molars: a clinical study. Int Endod J. 1989 Jan;22(1):39-43. [DOI:10.1111/j.1365-2591.1989.tb00503.x] [PMID]
25. Teixeira FB, Sano CL, Gomes BP, Zaia AA, Ferraz CC, Souza-Filho FJ. A preliminary in vitro study of the incidence and position of the root canal isthmus in maxillary and mandibular first molars. Int Endod J. 2003 Apr;36(4):276-80. [DOI:10.1046/j.1365-2591.2003.00638.x] [PMID]
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