A Cone-beam Computed Tomography Study of the Root Canal Morphology of Mandibular First Premolars and the Location of Root Canal Orifices and Apical Foramina in a Chinese Subpopulation

Yang, Haibing; Tian, Cheng; Li, Guoju; Yang, Lin; Han, Xuan; Wang, Yan

doi:10.1016/j.joen.2012.11.003

Cited by 75 publications

(95 citation statements)

References 23 publications

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“…Sample teeth in this current study, collected from Guizhou province, have 35.96% incidence of two or more canals, which is similar to the study (34.8%) from Chongqing municipality 8 in China. However, compared with the current study, a lower incidence were reported in populations from Shanghai municipality (16.5%) 16 and Shandong province (22.86%) 7 .…”

Section: Discussioncontrasting

confidence: 94%

Root anatomy and canal morphology of mandibular first premolars in a Chinese population

Dou

et al. 2017

Sci Rep

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This study was to investigate root anatomy and root canal morphology of mandibular first premolars in a Chinese population. 178 human permanent mandibular first premolars extracted from a native Chinese population were collected, scanned using micro-computed tomography and reconstructed three-dimensionally. The number of roots and canals, canal configuration and radicular grooves were investigated. The root canal morphology was categorized according to Vertucci’s criteria. The radicular grooves were scored according to the Arizona State University dental anthropology scoring system (ASUDAS), and the correlation between scores for radicular grooves and root canal morphology was analyzed. Almost all the samples were single-rooted (99.4%). 64.04% of teeth possessed type I canal systems, whilst 34.27% had two canals and 1.69% had three canals. According to ASUDAS, the scores of radicualr grooves were 56.74%, 16.85%, 12.36%, 10.11%, 3.37% and 0.56% respectively from grade 0 to grade 5. The roots with radicular grooves (grade 3 or 4) were defined as Tome’s anomalous root and these roots have a high incidence of C-shape configurations (66.67%) and multiple-canal systems (100%). There is complicated variation of the root anatomy and canal morphology of mandibular first premolars in southwestern Chinese population, which needs special attention and careful assessment for endodontic treatment.

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Section: Discussioncontrasting

confidence: 94%

Root anatomy and canal morphology of mandibular first premolars in a Chinese population

Dou

et al. 2017

Sci Rep

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“…2e17 However, when CBCT is used to study the root and canal systems of mandibular first premolars in Chinese and Taiwanese patients, a similar tendency is found with the 1R1C, 2R2C, 1R2C, and 3R3C plus other types being the first, second, third, and fourth common types of the root and canal system in mandibular first premolars, respectively. 16,17 This study found a significant difference in the root and root canal system of mandibular first premolars between male and female Taiwanese patients. Women had a significantly higher incidence of 1R1C mandibular first premolars (71.4%) than men (58.8%, p Z 0.031), but men had a significantly higher incidence of 2R2C mandibular first premolars (27.2%) than women (8.5%, p < 0.001).…”

Section: Discussionmentioning

confidence: 74%

Evaluation of the root and root canal systems of mandibular first premolars in northern Taiwanese patients using cone-beam computed tomography

Huang

Sheu

et al. 2015

Journal of the Formosan Medical Association

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“…Yang et al [24] reported the distance between the apical foramen and the anatomic apex of most mandibular first premolars to be 0–2 mm. However, larger discrepancies of 2–5 mm were also noted.…”

Section: Resultsmentioning

confidence: 99%

Endodontic and Clinical Considerations in the Management of Variable Anatomy in Mandibular Premolars: A Literature Review

Albuquerque¹,

Kottoor

Hammo³

2014

BioMed Research International

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Mandibular premolars are known to have numerous anatomic variations of their roots and root canals, which are a challenge to treat endodontically. The paper reviews literature to detail the various clinically relevant anatomic considerations with detailed techniques and methods to successfully manage these anomalies. An emphasis and detailed description of every step of treatment including preoperative diagnosis, intraoperative identification and management, and surgical endodontic considerations for the successful management of these complex cases have been included.

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A Cone-beam Computed Tomography Study of the Root Canal Morphology of Mandibular First Premolars and the Location of Root Canal Orifices and Apical Foramina in a Chinese Subpopulation

Cited by 75 publications

References 23 publications

Root anatomy and canal morphology of mandibular first premolars in a Chinese population

Root anatomy and canal morphology of mandibular first premolars in a Chinese population

Evaluation of the root and root canal systems of mandibular first premolars in northern Taiwanese patients using cone-beam computed tomography

Endodontic and Clinical Considerations in the Management of Variable Anatomy in Mandibular Premolars: A Literature Review

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