Root and canal configurations of maxillary premolars in a South African subpopulation using cone beam computed tomography and two classification systems

Buchanan, Glynn Dale; Gamieldien, Mohamed Yasin; Tredoux, Sheree; Vally, Zunaid Ismail

doi:10.2334/josnusd.19-0160

Cited by 41 publications

(77 citation statements)

References 30 publications

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“…Its use has been proposed not only for investigational purposes but also for teaching and clinical practice (Ahmed & Dummer, 2018).In other tooth types, for example, mandibular molars, 32 different configurations were observed (Abarca et al, 2020); the reason why the number of configurations found was similar to what was observed by Vertucci (Vertucci) could be because maxillary premolars, especially second premolars, are the teeth that best adapt to this classification system (Vertucci). In a recently conducted study in a South-African subpopulation (Buchanan et al, 2020) 13 different configurations were observed for maxillary premolars, and in an Egyptian subpopulation, 11 different canal configurations were observed (Saber et al). The configurations outside of the Vertucci classification corresponded to 1.1 % of the cases for both studies (Saber et al; Buchanan et al).…”

Section: Discussionmentioning

confidence: 99%

Root Anatomy and Canal Configuration of Maxillary Premolars: A Cone-beam Computed Tomography Study

et al. 2021

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Section: Discussionmentioning

confidence: 99%

Root Anatomy and Canal Configuration of Maxillary Premolars: A Cone-beam Computed Tomography Study

et al. 2021

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“…Root anatomy was found to be associated with racial, genetic, and external factors [3]. Geographic area may also have a role in dental anatomic variation [5].…”

Section: Introductionmentioning

confidence: 99%

“…Several systems have been used to classify root canal anatomy and root canal morphology of the human dentition. The original Vertucci classification system is one of the most well-known and widely used classifications [6] but is limited when describing teeth with more than two canals per root [5]. In 2004, Sert and Bayirli added 15 configurations to Vertucci's original classification system, to describe increasingly complex root canal anatomy [7].…”

Section: Introductionmentioning

confidence: 99%

Root and canal configurations of mandibular first molars in a South African subpopulation

2021

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This study investigated root number and canal configurations, including morphological variations, of mandibular first molars in a subpopulation of South Africans. Methods: Two calibrated examiners retrospectively evaluated 371 mandibular first molars by using high-resolution cone-beam CT images and the Vertucci classification system with the additions of Sert and Bayirli. Internal and external configurations were recorded, and correlations of sex and age with root number and canal configuration were determined with the chi-square and Fisher exact tests (P < 0.05). Results: Among mandibular first molars, 0.3% were single-rooted, 98.7% were two-rooted, and 1% were three-rooted. The most frequent configuration was Vertucci Type IV in mesial roots and Vertucci Type I in distal roots. Middle mesial canals were found in 20% and middle-distal canals in 7% of samples. The prevalence of third canals increased in mesial and distal roots as age increased (P > 0.05). Canal configuration and sex were not correlated (P > 0.05). Conclusion:Mandibular first molars exhibited diverse anatomic characteristics in this subpopulation. Clinicians should be aware of the possibility of additional canals in mandibular first molars, as treatment outcomes may be worse if canals are left untreated.

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“…In this study, an overwhelming majority of maxillary second premolars were observed with one root (94.2%).This incidence seemingly kind of shifted with race since some previous researches have reported a considerably lower rate, such as in Jordanian population (55.3%) [ 29 ], South African subpopulation (78.2%) [ 30 ], Spanish population (82.9%) [ 7 ], Saudi population (85.2%) [ 12 ], Iranian population (91%) [ 31 ] and Turkish Cypriot population (91.9%) [ 32 ]. It’s worth noticing that researches done before by Hu (95.2%) [ 17 ] and Li (96.2%) [ 16 ] in Chinese subpopulation also got the similar result.…”

Section: Discussionmentioning

confidence: 53%

CBCT evaluation of root canal morphology and anatomical relationship of root of maxillary second premolar to maxillary sinus in a western Chinese population

Yan

Hua

et al. 2021

BMC Oral Health

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Background To evaluate the root anatomy, root canal morphology and the anatomical relationship between the roots and maxillary sinus of maxillary second premolars by CBCT in a western Chinese population. Methods A total of 1118 CBCT scans of the maxillary second premolars were collected from West China Hospital of Stomatology, Sichuan University. Information below were measured on axial, coronal and sagittal sections, recorded and evaluated properly: the number of roots and canals, the morphology of canal system classified by Vertucci standard, the inter-orifice distance of canal orifices, the curvature of each canal and the distance from root tip to maxillary sinus floor. Results Among the 1118 teeth, 94.2% (1053) are single-rooted and 55.1% (616) have one canal. Type I (55.1%) is the commonest root canal morphology followed by Type II (31.9%). The mean inter-orifice distance (IOD) for multi-canal teeth ranging from 2.72 ± 0.32 to 3.41 ± 0.11 mm. Of 1622 canals, 38.8% (630) curvature are mesiodistal and 30.9% (501) are straight canals. The distance from root tip to maxillary sinus floor increased with age and the mean distance of single-rooted ones is 2.47 ± 3.45 mm. Conclusions All kinds of canal morphology category can be detected in maxillary second premolars. The IOD might be a predictable factor for root canal morphology. Roots of maxillary second premolars are related to maxillary sinus which should be treated carefully.

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Root and canal configurations of maxillary premolars in a South African subpopulation using cone beam computed tomography and two classification systems

Cited by 41 publications

References 30 publications

Root Anatomy and Canal Configuration of Maxillary Premolars: A Cone-beam Computed Tomography Study

Root Anatomy and Canal Configuration of Maxillary Premolars: A Cone-beam Computed Tomography Study

Root and canal configurations of mandibular first molars in a South African subpopulation

CBCT evaluation of root canal morphology and anatomical relationship of root of maxillary second premolar to maxillary sinus in a western Chinese population

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