Prevalence of Middle Mesial Canal in Mandibular First Permanent Molars in a Persian Population: An In Vivo Cone-Beam Computed Tomography Study

IF 1.7 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical and Experimental Dental Research Pub Date : 2024-08-28 DOI:10.1002/cre2.935

Samaneh Hajizadeh, Morteza Khodabandeh Amiri, Sanaz Mihandoust, Zhaleh Shafiei Sabet, Rasoul Tabari Khomeiran

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Abstract

Objectives

This study aimed to identify the prevalence of the middle mesial canal (MMC) in mandibular first permanent molars in a Persian subpopulation sample using cone-beam computed tomography (CBCT). The secondary aim was to correlate the incidence of MMC with variables such as gender, age, and the presence of an additional distal canal.

Materials and Method

A total of 390 mandibular first molars from 314 CBCT images were retrospectively evaluated. The presence of the MMC was recorded while considering related factors such as additional distal canal and demographic information of the patients (age and gender). Fisher's exact tests and independent-samples t-test were used for the statistical comparisons with a significance level of 0.05.

Results

Among 390 mandibular first molars, 34 teeth contained an MMC (8.7%). The number of teeth with the MMC in women was equal to that of men. There was no significant difference between the two genders in the prevalence of the MMC (p > 0.05). The prevalence of patients' MMC had no significant relationship with their age (p > 0.05). However, there was a significant association between the presence of the MMC and an additional distal canal (p < 0.05).

Conclusion

The incidence of an additional distal canal in teeth with a diagnosed MMC was statistically significant. The prevalence of the MMC in mandibular first molars in the study population was low; however, accurate knowledge of root canal morphology in terms of the presence of an additional root canal in these teeth should be considered.

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波斯人下颌第一恒磨牙中中槽的患病率：活体锥形束计算机断层扫描研究

目的本研究旨在利用锥束计算机断层扫描（CBCT）技术，在波斯亚人群样本中确定下颌第一恒磨牙中中髓管（MMC）的患病率。次要目的是将 MMC 的发生率与性别、年龄和是否存在附加远端管等变量相关联。材料和方法对 314 张 CBCT 图像中的 390 颗下颌第一磨牙进行了回顾性评估。在记录 MMC 存在情况的同时，还考虑了相关因素，如附加远端管和患者的人口统计学信息（年龄和性别）。统计比较采用费雪精确检验和独立样本 t 检验，显著性水平为 0.05。结果在 390 颗下颌第一磨牙中，有 34 颗牙齿（8.7%）含有 MMC。女性与男性含有MMC的牙齿数量相当。两种性别在多发性磨牙的患病率上没有明显差异（p > 0.05）。患者的多发性磨牙与年龄无明显关系（p > 0.05）。然而，MMC 的存在与附加远端管道之间存在明显关联（p < 0.05）。结论在已确诊为多发性磨牙的牙齿中，多发性远端牙管的发生率具有统计学意义。在研究人群中，下颌第一磨牙中 MMC 的发病率较低；但是，应考虑准确了解这些牙齿根管形态中是否存在附加根管。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Clinical and Experimental Dental Research DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

3.30

自引率

5.60%

发文量

165

审稿时长

26 weeks

期刊介绍： Clinical and Experimental Dental Research aims to provide open access peer-reviewed publications of high scientific quality representing original clinical, diagnostic or experimental work within all disciplines and fields of oral medicine and dentistry. The scope of Clinical and Experimental Dental Research comprises original research material on the anatomy, physiology and pathology of oro-facial, oro-pharyngeal and maxillofacial tissues, and functions and dysfunctions within the stomatognathic system, and the epidemiology, aetiology, prevention, diagnosis, prognosis and therapy of diseases and conditions that have an effect on the homeostasis of the mouth, jaws, and closely associated structures, as well as the healing and regeneration and the clinical aspects of replacement of hard and soft tissues with biomaterials, and the rehabilitation of stomatognathic functions. Studies that bring new knowledge on how to advance health on the individual or public health levels, including interactions between oral and general health and ill-health are welcome.

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