First premolar variations in number of roots, root canals and tooth length

Nikolić, Marija; Mitić, Aleksandar; Gasic, Jovanka; Popović, Jelena; Barac, Radomir; Dačić, Stefan; Simonović, Ana

doi:10.5937/gads1449037n

Cited by 3 publications

(11 citation statements)

References 7 publications

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“…Differences in the number of roots and canals are seen in different geographical regions. Previous studies in Serbian population [4,22] reported a similar incidence of one root in maxillary first premolars as our study (43% and 46.3%, respectively) by using clearing and staining techniques. A study conducted in Spanish population showed similar results, where one root was present in 46% [26].…”

Section: Maxillary Premolarssupporting

confidence: 87%

“…In previous studies, a variety of methods were used for evaluating the internal morphology of teeth in laboratory and clinical settings [4,9,11,13,15,[18][19][20][21][22][23][24]. Laboratory methods are highly accurate, whereas the clearing and staining technique is considered the gold standard in assessing root canal morphology, but their implementation requires tooth extraction [4]. In the last decade, the CBCT was often used to study anatomical and morphological characteristics of root canals in clinical settings [3,7,8,10,12,14,25,26].…”

Section: Discussionmentioning

confidence: 99%

“…Previous studies have shown that premolar teeth can vary considerably in the number of roots and root canals. The frequency of three root canals in the maxillary premolar teeth varies from 0% [3] to 10% [4]. Variations in the root number and root canal morphology of premolar teeth are seen among subjects of different race, geo-graphical origin, and gender.…”

Section: Introductionmentioning

confidence: 99%

“…Configurations with multiple root canals in maxillary first premolars vary from 37% to 86% [3,10]. A single root canal in mandibular first premolars in different populations is seen from 66% to 94% [3,4,[7][8][9][10][11][12][13][14][15]. The study of Trope et al demonstrated that premolar teeth with multiple root canals are more frequently observed in black people [16].…”

Section: Introductionmentioning

confidence: 99%

“…There are various methods used for studying internal root morphology. The most common methods include clearing and staining techniques [4,9,11,15,[18][19][20][21][22], cross-sections [23], radiographic techniques and others [13,24]. These methods require the use of extracted teeth, and some methods require complete destruction of the observed samples.…”

Section: Introductionmentioning

confidence: 99%

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Cone-beam computed tomography study of root number and root canal configuration of premolars in Serbian population

et al. 2018

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Introduction. The aim of this study was to establish the number of roots and present the root canal configuration in the maxillary and mandibular premolar teeth, and evaluate the relations among these characteristics with gender and teeth position in the Serbian population using cone-beam computed tomography. Material and Methods. Cone-beam computed tomography images of 570 teeth of 150 patients were evaluated. Teeth were classified into the following groups: maxillary first premolars, maxillary second premolars, mandibular first premolars and mandibular second premolars, and the number of roots and root canals per tooth, whereas root canal configurations were examined along with the tooth position and patients' gender. The root canal configuration was classified using Vertucci's classification. Statistical significance was obtained using Chi square test. Results. In maxillary first premolars, two roots (53.5%) and two root canals (84.5%) were the most prevalent, as well as type IV configuration (58.9%). In maxillary second premolars, most teeth had one root (88.1%) and one root canal (59.6%). In regard to gender, complex configurations with multiple canals were more prevalent in males. Higher incidence of type IV configuration in maxillary first premolars was present on the right side of the jaw (70.2%). Most mandibular first premolars had one root (98.5%). In mandibular second premolar, all teeth had one root and most had type I configuration (96.2%). Males showed higher incidence of two canals in mandibular first premolars. Conclusion. Cone-beam computed tomography is a useful tool for obtaining valuable information on root canal morphology of premolar teeth. Patient's gender should be considered when performing the preoperative assessment of endodontic treatment.

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Section: Maxillary Premolarssupporting

confidence: 87%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Cone-beam computed tomography study of root number and root canal configuration of premolars in Serbian population

et al. 2018

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Evaluation of the root canal morphology variations of maxillary premolars using cone-beam computed tomography

Stankovic,

Popovic,

Dakovic-Bjelakovic

et al. 2023

SERBIAN DENT J

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Introduction. Maxillary premolars often undergo endodontic treatment, which requires detailed knowledge of their canal morphology. The aim of this study was to determine the most common number of roots of maxillary premolars by analyzing CBCT images, as well as to determine the most common root canal configuration in maxillary premolars in the population of Southeast Serbia using the new system for classifying root canal morphology by Ahmed et al. Material and methods. 55 CBCT images of male and 63 CBCT images of female patients were analyzed, which included 223 maxillary first premolars and 207 maxillary second premolars. The analysis was performed in the program Galileos. The number of roots of these teeth was determined and the canal morphology was classified in relation to the gender and side of maxilla. Results. The maxillary first premolars most often had two roots and configuration type 2TNB1P1, while the most maxillary second premolars had one root and configuration type 1TNB1. No significant difference was observed in the number of roots and type of configuration between male and female, as well as between left and right sides. Conclusion. The classification of the tooth canal system according to Ahmed et al. emphasizes the advantage of simultaneous classification of the number of roots and the number of canals. Although most premolars do not pose a problem for treatment, there have been registered canal configurations of maxillary premolars that can be a challenge for endodontic treatment. A detailed analysis of the canal configuration can be performed using CBCT.

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Cone-beam computed tomography study of tooth root and canal morphology of permanent molars in a Serbian population

Popović

Živanović

Vučićević

et al. 2020

VSP

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Background/Aim. For successful endodontic therapy, it is necessary to know root morphology. Therefore, the aim of our study was to analyze root canal morphology and root canal length of permanent molars in a Serbian population, using cone-beam computed tomography (CBCT). Methods. The study included a total of 305 maxillary molars, and 280 mandibular molars receiving cone-beam computed tomography examination and determined root numbers, canal morphology according to Vertucci classification, and canal lengths. Results were correlated with sex and tooth location in the jaw. Results. The mesiobuccal roots of first maxillary molars showed Vertucci type I in 45.7%, followed by type II in 29% of cases. For the second molar, Vertucci type I was found in 60.5% of cases in mesiobuccal canals. Palatal and distobuccal canals mostly presented Vertucci type I configuration. The mesial roots of mandibular molars had the highest frequency of two canals with Vertucci type IV as the most frequent for the first molar, and Vertucci type II for the second molar. Distal roots most commonly had one canal in both molars. Palatal canal length was the highest in maxillary first molars, with the mean value of 20.62 mm, while in second molars, the highest length value was for the mesiobuccal canal (20.09 mm). In both mandibular molars the mesial root canal was the longest one. Differences were found according to sex and tooth location in the jaw. Conclusion. Mesiobuccal roots of maxillary first molars had two canals; it was more frequently compared to second molars. Mesial roots of mandibular molars showed same frequency of two canals, and diversity in Vertucci types. Male patients tended to have higher complexity of root canal morphology compared to that of females. CBCT can improve understanding of the root canal morphology.

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First premolar variations in number of roots, root canals and tooth length

Cited by 3 publications

References 7 publications

Cone-beam computed tomography study of root number and root canal configuration of premolars in Serbian population

Cone-beam computed tomography study of root number and root canal configuration of premolars in Serbian population

Evaluation of the root canal morphology variations of maxillary premolars using cone-beam computed tomography

Cone-beam computed tomography study of tooth root and canal morphology of permanent molars in a Serbian population

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