Characteristics of Second Mesiobuccal Canals in Maxillary Molars in Kunming Population with Cone-beam Computed Tomography Technology

Ran-ping XIAO; Ye ZHANG; Hong-mei ZHAO; Yu GUO; Xiao-bing TAN

doi:10.12259/j.issn.2095-610X.S20220111

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Ran-ping XIAO, Ye ZHANG, Hong-mei ZHAO, Yu GUO, Xiao-bing TAN. Characteristics of Second Mesiobuccal Canals in Maxillary Molars in Kunming Population with Cone-beam Computed Tomography Technology[J]. Journal of Kunming Medical University. doi: 10.12259/j.issn.2095-610X.S20220111

Citation:

Ran-ping XIAO, Ye ZHANG, Hong-mei ZHAO, Yu GUO, Xiao-bing TAN. Characteristics of Second Mesiobuccal Canals in Maxillary Molars in Kunming Population with Cone-beam Computed Tomography Technology[J]. Journal of Kunming Medical University. doi: 10.12259/j.issn.2095-610X.S20220111

Citation:

Ran-ping XIAO, Ye ZHANG, Hong-mei ZHAO, Yu GUO, Xiao-bing TAN. Characteristics of Second Mesiobuccal Canals in Maxillary Molars in Kunming Population with Cone-beam Computed Tomography Technology[J]. Journal of Kunming Medical University. doi: 10.12259/j.issn.2095-610X.S20220111

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Characteristics of Second Mesiobuccal Canals in Maxillary Molars in Kunming Population with Cone-beam Computed Tomography Technology

doi: 10.12259/j.issn.2095-610X.S20220111

Center of Stomatology，The 1st People’s Hospital of Yunnan Province，The Affiliated Hospital of Kunming University of Science and Technology，Kunming Yunnan 650032，China

Received Date: 2021-12-08
Available Online: 2021-12-20

Abstract

Abstract

Objective To investigate the characteristics of root canals of maxillary first and second molars in Kunming population, especially the second mesiobuccal （MB2） canals. Methods Cone-beam computed tomographic （CBCT） technology was used to analyze a total of 1279 maxillary first and second molars from 358 patients in our hospital. The root number, root canal classification, presence and location of MB2, distribution of the main root canal orifices were explored. Results The incidence of MB2 in maxillary first molars in Kunming population was 86.51%. The incidence of MB2 in group 18-19 behaved much lower （70.0%, P < 0.05） and there were no significant differences among the other three groups （88.61%, 87.39% and 79.75%, respectively, P > 0.05）. The distribution of MB2 was: type Ⅱ 15.5%, type Ⅲ 6.1%, type Ⅳ 64.6% and type Ⅴ 13.7%. The incidence of MB2 in maxillary second molars was 52.05%. There were no significant differences among all the four age groups （40.00%, 51.08%, 52.44% and 59.38%, respectively, P > 0.05）. The distribution of MB2 were type Ⅱ 17.3%, type Ⅲ 7.3%, type Ⅳ 50.0% and type Ⅴ 25.4%. The distance from MB2 to MB1 was 1.70±0.72 mm and that to vertical line was 0.78±0.49 mm. The ratios of the distance between the first mesiobuccal and palatal canal orifices （MB1-P） to that between the distobuccal and palatal canal orifices （DB-P） were 1.28±0.08 （with MB2 present） and 1.23±0.02 （MB2 absent）. Conclusion MB2 root canal in maxillary molars in Kunming population occur with high incidence and most of them behave as type IV. The ratio of MB1-P to DB-P will help to define the presence of MB2 root canal and improve the success rate of root canal treatment.
- Maxillary first molar,
- Maxillary second molar,
- Second mesiobuccal canal,
- Cone-beam computed tomography

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References(14)

References

[1]	Karabucak B,Bunes A,Chehoud C,et al. Prevalence of apical periodontitis in endodontically treated premolars and molars with untreated canal:a cone-beam computed tomography study[J]. J Endod,2016,42(4):538-541. doi: 10.1016/j.joen.2015.12.026
[2]	Zhang Y,Xu H,Wang D,et al. Assessment of the second mesiobuccal root canal in maxillary first molars:a cone-beam computed tomographic study[J]. J Endod,2017,43(12):1990-1996. doi: 10.1016/j.joen.2017.06.021
[3]	Brent M,Hiebert,et al. Prevalence of second mesiobuccal canals in maxillary first molars detected using cone-beam computed tomography,direct occlusal access,and coronal plane grinding[J]. J Endod,2017,43(10):1711-1715. doi: 10.1016/j.joen.2017.05.011
[4]	Vertucci F J. Root canal morphology and its relationship to endodontic procedures[J]. Endod Top,2005,10(1):3-29. doi: 10.1111/j.1601-1546.2005.00129.x
[5]	Kharouf N,Mancino D. An in vivo study:Location and instrumentation of the second mesiobuccal canal of the maxillary second molar[J]. J Contemp Dent Pract,2019,20(2):131-135. doi: 10.5005/jp-journals-10024-2487
[6]	Neelakantan P,Subbarao C,Subbarao C V. Comparative evaluation of modified canal staining and clearing technique,cone-beam computed tomography,peripheral quantitative computed tomography,spiral computed tomography,and plain and contrast medium-enhanced digital radiography in studying root canal mor-phology[J]. J Endod,2010,36(9):1547-1551. doi: 10.1016/j.joen.2010.05.008
[7]	Tian X M,Yang X W,Qian L,et al. Analysis of the root and canal morphologies in maxillary first and second molars in a Chinese population using cone-beam computed tomography[J]. J Endod,2016,42(5):696-701. doi: 10.1016/j.joen.2016.01.017
[8]	Zhang R,Yang H,Yu X,et al. Use of CBCT to identify the morphology of maxillary permanent molar teeth in a Chinese subpopulation[J]. Int Endod J,2011,44(2):162-169. doi: 10.1111/j.1365-2591.2010.01826.x
[9]	Kewalramani R,Murthy C S,Gupta R,et al. The second mesiobuccal canal in three-rooted maxillary first molar of Karnataka Indian sub-populations:A cone-beam computed tomography study[J]. J Oral Biol Craniofac Res,2019,9(4):347-351. doi: 10.1016/j.jobcr.2019.08.001
[10]	Martins J N R,Alkhawas M A M,Altaki Z,et al. Worldwide analyses of maxillary first molar second mesiobuccal prevalence:A multicenter cone-beam computed tomographic study[J]. J Endod,2018,44(11):1641-1649.e1. doi: 10.1016/j.joen.2018.07.027
[11]	Faraj B M. The frequency of the second mesiobuccal canal in maxillary first molars among a sample of the Kurdistan Region-Iraq population - A retrospective cone-beam computed tomography evaluation[J]. J Dent Sci,2021,16(1):91-95. doi: 10.1016/j.jds.2020.06.021
[12]	Tzeng L T,Chang M C,Chang S H,et al. Analysis of root canal system of maxillary first and second molars and their correlations by cone beam computed tomography[J]. J Formos Med Assoc,2020,119(5):968-973. doi: 10.1016/j.jfma.2019.09.012
[13]	Lee S J,Lee E H,Park S H,et al. A cone-beam computed tomography study of the prevalence and location of the second mesiobuccal root canal in maxillary molars[J]. Restor Dent Endod,2020,45(4):46. doi: 10.5395/rde.2020.45.e46
[14]	Su C C,Huang R Y,Wu Y C,et al. Detection and location of second mesiobuccal canal in permanent maxillary teeth:A cone-beam computed tomography analysis in a Taiwanese population[J]. Arch Oral Biol,2019,98:108-114.

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