Mandibular second molar with 3 mesial canals and a radix paramolaris

Ragavendran, N; Bhat, Ganesh; Hegde, Mithra N

doi:10.4103/0975-7406.137461

Cited by 2 publications

(1 citation statement)

References 8 publications

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“…Mandibular second molar with one canal each in the distal root and radix paramolaris and three canals in the mesial root, i.e., a total of five canals[ 84 ]…”

Section: Discussionmentioning

confidence: 99%

Morphology and prevalence of middle canals in the mandibular molars: A systematic review

Bansal

Hegde

Astekar³

2018

J Oral Maxillofac Pathol

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Objectives:The purpose of this paper is to systematically review the various studies and case reports on the morphology and prevalence of middle canals in the mandibular molars.Methodology:Electronic databases such as MEDLINE, PubMed, EBSCOhost, ScienceDirect and various journals were screened to identify published literature till March 2017 and earlier for articles related to middle canals in the human permanent mandibular molars. Obtained articles were categorized as original researches, case reports and review articles. Well-defined review questions were developed using the patient population, intervention, comparison and outcome framework to summarize the objectives: “Does middle canal vary in morphology and anatomic location? What is the prevalence of middle canals in mandibular molars? Does ethnicity affect the prevalence of middle canals in mandibular molars?” Morphology was studied and prevalence rates were determined from the evaluation of data extracted from the articles.Results:The search strategy resulted in 87 articles, of which 36 were original research papers and 51 were case reports. The prevalence of middle canals in the various populations ranged from 0.26% to 53.8%. Middle canals were reported in Europeans, Asians, Africans and South and North American populations. The prevalence of middle mesial canal and middle distal canal in various races was reported as up to 53.8% and 10%, respectively. The orifice of middle canal exists below a dentinal projection in the groove between the two main canals. They were observed in fin, confluent and independent configuration. Out of these, confluent configuration was more prevalent.Conclusion:Middle canal varies in morphology and anatomic location. Ethnicity affects the prevalence of middle canals in the mandibular molars.

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“…Mandibular second molar with one canal each in the distal root and radix paramolaris and three canals in the mesial root, i.e., a total of five canals[ 84 ]…”

Section: Discussionmentioning

confidence: 99%

Morphology and prevalence of middle canals in the mandibular molars: A systematic review

Bansal

Hegde

Astekar³

2018

J Oral Maxillofac Pathol

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Prevalence of middle mesial root canal in mandibular molars in an Iranian population: A micro-computed tomography study

Farhad,

Hasheminia,

Hekmatian

et al. 2024

Dental Research Journal

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Background: Knowledge about the anatomic variations of the root canal system and their prevalence is necessary for clinicians to ideally clean the root canal system. The anatomic complexity of the root canal system is one of the reasons for its inadequate debridement, resulting in residual microorganisms and root canal treatment failure. The present study aimed to evaluate the prevalence of middle mesial root canals in mandibular molars in an Iranian population. Materials and Methods: The samples in the present descriptive/cross-sectional study consisted of mandibular first and second molars (n = 100, with 50 first and 50 s molars). A convenient sampling method was used to collect samples. The teeth were mounted in gypsum and scanned using a micro-computed tomography unit. The images were reconstructed with software, and the relevant checklist was completed by the observers. The data were analyzed with SPSS v26 using the Chi-squared test at a significance level of P < 0.05. Results: The prevalence of the middle mesial root canal in the present study was 36% for mandibular first molars and 22% for mandibular second molars, with an overall prevalence of 29%. The prevalence of the middle mesial root canal was not significantly different between the first and second mandibular molars (P = 0.12). The mean distance between the mesiobuccal and mesiolingual root canal orifices in the teeth with a middle mesial root canal was significantly higher than in those without the middle mesial root canal (P < 0.001). In addition, there was no significant difference in the prevalence of the middle mesial root canal between the teeth with and without the second distal root canal (P = 0.89). Conclusion: The prevalence of the middle mesial root canal in the studied population was 29%, which is significant clinically. In addition, the mean distance between the mesiobuccal and mesiolingual root canal orifices in teeth with a middle mesial root canal was higher than that in teeth without this root canal.

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Mandibular second molar with 3 mesial canals and a radix paramolaris

Cited by 2 publications

References 8 publications

Morphology and prevalence of middle canals in the mandibular molars: A systematic review

Morphology and prevalence of middle canals in the mandibular molars: A systematic review

Prevalence of middle mesial root canal in mandibular molars in an Iranian population: A micro-computed tomography study

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