ArticleBMC oral health2020
Classification and morphology of middle mesial canals of mandibular first molars in a southern Chinese subpopulation: a cone-beam computed tomographic study.
Article in BMC oral health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.
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Who cites it
11 citing papers in PubMed, 1 synthesis or guideline pooled it.
- A systematic review and meta-analysis of the prevalence and global distribution of middle mesial canals in mandibular molars identified by CBCT.Clinical oral investigations · 2024Pooled it
- Association Between Middle Mesial Canals and Additional Distal Root Canal Anatomy in Mandibular First Molars: A Cone-Beam Computed Tomography Study in an Iranian Population.International journal of dentistry · 2026Article
- Prevalence and morphology of middle mesial canals in mandibular first molars and their relationship with anatomical aspects of the mesial root: a CBCT analysis.BMC oral health · 2025Article
- Prevalence and root canal morphology of taurodontism analyzed by cone-beam computed tomography in Northern China.BMC oral health · 2025Article
- Correlation between the Middle Mesial Canal and Furcation Radiolucency in Mandibular Molars.Iranian endodontic journal · 2025Article
- Prevalence of Middle Mesial Canal in Mandibular First Permanent Molars in a Persian Population: An In Vivo Cone-Beam Computed Tomography Study.Clinical and experimental dental research · 2024Article
- CBCT based investigation of frequency of Middle Mesial Canal in Mandibular First Molars of Saudi Sub-population.Pakistan journal of medical sciences · 2024Article
- Article
- Prevalence of middle mesial canal using cone beam computed tomography: A systematic review and meta-analysis.The Saudi dental journal · 2023Review
- Middle mesial canal in mandibular first molar: A narrative review.The Saudi dental journal · 2023Review
- Article
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Abstract
backgroundCone-beam computed tomography (CBCT) was employed to study the morphology and curvature of middle mesial canals (MMCs) of mandibular first molars (MFMs).
methodsCBCT scanning was performed on MFMs of 1100 patients. Patients' images that met the inclusion criteria were divided into group A (< 40 years old) and group B (≥ 40 years old) for further study. The images were used to study the incidence of MMCs at different ages, measure the curvature of MMCs in the mesiodistal and buccolingual directions using the Schneider method, and observe the anatomical morphology of the mesial root canal system. All statistical analyses were performed by using SPSS 21.0 software. Quantitative data were presented as mean ± standard deviation. Student's t-test was used to calculate the statistical significance. P < 0.05 was considered statistically significant.
resultsIn 875 patients, 1750 MFM images met the inclusion criteria. Among these cases, 158 MFMs contained an MMC, yielding an incidence rate of 9.03%. The incidence rate of MMCs was 11.22% in group A and 6.61% in group B, and this difference was statistically significant (P < 0.05). The curvature in the mesiodistal direction was 29.39 ± 8.53° in group A and 26.06 ± 8.50° in group B, and this difference was also significant (P < 0.05). The curved regions in groups A and B were often located in the middle 1/3 of canal. No significant difference in the distance between MMC orifices and mesiobuccal canal orifices or mesiolingual canal orifices was noted (P > 0.05). The most common mesial root canal morphological type was type II (3-2) (53.80%).
conclusionThe incidence of MMCs in MFMs declined as age increased. The canal systems of MMCs were varied and complex, mainly exhibiting an obvious mesiodistal curve. CBCT is an outstanding method to help guide root canal therapy. *Yeqing Yang and Buling Wu have contribute equally to this article.
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