Prevalence and anatomic associations of middle mesial canals and isthmi in mandibular first molars : A CBCT-based study in a Northern Chinese population
© 2023 Australian Society of Endodontology Inc..
This study investigated the prevalence of the middle mesial canal (MMC) and isthmus in a northern Chinese subpopulation using cone-beam computed tomography (CBCT). CBCT images of 1060 mandibular first molars (MFMs) were analysed. Data analysis was performed using the chi-square test, t-test, and multiple logistic regression analysis (p < 0.05). The prevalence of MMC and isthmus was 15.2% and 40.6%, respectively. The average dentinal thickness in the danger zone was 1.61 ± 0.14 mm. Patients younger than 40 years were two times more likely to have MMC (odds ratio [OR] = 2.204). Additionally, for every 1 mm reduction in the MB-ML orifice distance, the likelihood of detection of MMC in MFM nearly doubled (OR = 1.738). Furthermore, MFMs with MB-ML isthmus were five times more likely to exhibit MMC than those without it (OR = 4.756). The findings revealed that the prevalence of MMC and isthmus in MFMs is high and suggested that anatomical and demographic variables can serve as valuable indicators for clinicians in anticipating their presence.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:50 |
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| Enthalten in: |
Australian endodontic journal : the journal of the Australian Society of Endodontology Inc - 50(2024), 1 vom: 25. Apr., Seite 69-77 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Liu, Jiaojiao [VerfasserIn] |
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| Links: |
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| Themen: |
Cone‐beam computed tomography |
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| Anmerkungen: |
Date Completed 08.04.2024 Date Revised 08.04.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1111/aej.12807 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM363941509 |
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| 100 | 1 | |a Liu, Jiaojiao |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Prevalence and anatomic associations of middle mesial canals and isthmi in mandibular first molars |b A CBCT-based study in a Northern Chinese population |
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| 500 | |a Citation Status MEDLINE | ||
| 520 | |a © 2023 Australian Society of Endodontology Inc. | ||
| 520 | |a This study investigated the prevalence of the middle mesial canal (MMC) and isthmus in a northern Chinese subpopulation using cone-beam computed tomography (CBCT). CBCT images of 1060 mandibular first molars (MFMs) were analysed. Data analysis was performed using the chi-square test, t-test, and multiple logistic regression analysis (p < 0.05). The prevalence of MMC and isthmus was 15.2% and 40.6%, respectively. The average dentinal thickness in the danger zone was 1.61 ± 0.14 mm. Patients younger than 40 years were two times more likely to have MMC (odds ratio [OR] = 2.204). Additionally, for every 1 mm reduction in the MB-ML orifice distance, the likelihood of detection of MMC in MFM nearly doubled (OR = 1.738). Furthermore, MFMs with MB-ML isthmus were five times more likely to exhibit MMC than those without it (OR = 4.756). The findings revealed that the prevalence of MMC and isthmus in MFMs is high and suggested that anatomical and demographic variables can serve as valuable indicators for clinicians in anticipating their presence | ||
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| 650 | 4 | |a root canal system | |
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| 700 | 1 | |a Liu, Ying |e verfasserin |4 aut | |
| 700 | 1 | |a Dong, Nannan |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Xiaodong |e verfasserin |4 aut | |
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