Root canal systems of the mandibular and maxillary first permanent molar teeth of South Asian Pakistanis

Wasti, F.; Shearer, Ann; Wilson, N.H.F.

doi:10.1046/j.1365-2591.2001.00377.x

Cited by 96 publications

(94 citation statements)

References 14 publications

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“…Similar to our results, the root canal configuration type of the palatal root has been reported in the literature and with even lower variations from the 1-1-1/1 configuration (31,32) in the distobuccal root. In contrast, Wasti et al (30) reported that 33.3% of the palatal roots of the maxillary first molars had a configuration type 1-2. These discrepancies could also be explained through the different type of ethnical samples origin and sample number.…”

Section: Discussionmentioning

confidence: 91%

“…These results are similar to those obtained by Sert and Bayirli (15), who observed 14 additional root canal configurations. However, Thomas et al (29) and Wasti et al (30) report a higher configuration variety. Similar to our results, the root canal configuration type of the palatal root has been reported in the literature and with even lower variations from the 1-1-1/1 configuration (31,32) in the distobuccal root.…”

Section: Discussionmentioning

confidence: 96%

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Root Canal Morphology and Configuration of 179 Maxillary First Molars by Means of Micro–computed Tomography: An Ex Vivo Study

Briseño-Marroquín

Paqué

Maier

et al. 2015

Journal of Endodontics

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INTRODUCTION The objective of this study was to propose a root canal configuration description method and to investigate the root canal system morphology of the maxillary first molar by means of micro-computed tomographic imaging. METHODS The root canal configuration, foramina, and accessory canal frequency of 179 maxillary first molars were investigated by means of micro-computed tomographic imaging and 3-dimensional software imaging. The root canal configuration and main foramina number are described from coronal to apical with a 4-digit system. RESULTS The most frequent root canal configurations were 1-1-1/1 (45.8%), 2-2-2/2 (25.1%) and 2-2-1/1 (10.1%) in mesiobuccal roots and 1-1-1/1 in distobuccal (97.2%) and palatal (98.9%) roots. The first mesiobuccal (MB1) root canal had 1 accessory canal in 26.3% of the teeth, the distobuccal root canal had 12.3%, and the palatal root canal had 9.5%; in the second mesiobuccal root canal, there was rarely 1 accessory canal. There was 1 accessory canal in 26.3%, 12.3%, and 9.5% in the MB1, distobuccal, and palatal root canals, respectively. The MB1, distobuccal, and palatal root canals had 1 main foramen. The MB2 had 1 main foramen in 39.0% of the teeth and no main foramen in 61.0%. CONCLUSIONS The root canal configuration of maxillary first molars is quite diversified. Contrary to our expectations in this research, the mesiobuccal root has predominantly 1 root canal entrance and only 1 main foramen. Anatomic variations including connecting and accessory canals occur in any third of root.

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Section: Discussionmentioning

confidence: 91%

Section: Discussionmentioning

confidence: 96%

Root Canal Morphology and Configuration of 179 Maxillary First Molars by Means of Micro–computed Tomography: An Ex Vivo Study

Briseño-Marroquín

Paqué

Maier

et al. 2015

Journal of Endodontics

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“…In Barbizam (24) study, two palatal and two mesiobuccal rooted maxillary first molars were reported, while we did not find any additional root in this study. 100% of cases indicated by Pattanshetti (25), Wasti (26) and Alavi (12), had one canal of distobuccal and palatal roots in maxillary first molars. whereas Ng (11) found 96% of distobuccal and 100% of palatal roots with one canal.…”

Section: Discussionmentioning

confidence: 98%

“…Besides, Neelakantan et al (1) reported MB 2 in 44.1%; they used another type of CBCT system (3D Accuitomo, Japan). Rathi et al (38) evaluated the frequency of MB 2 by CT and reported its percentage as 57%, while Wasti et al (26) used tooth clearing technique and found the second mesiobuccal frequency in maxillary first molar as 52%. The obtained results of these two studies were lower than this study.…”

Section: Discussionmentioning

confidence: 99%

Cone Beam Computed Tomography Study of Root and Canal Morphology of Maxillary first Molar in an Iranian Population

Faramarzi¹,

Vossoghi²,

Shokri³

et al. 2015

Avicenna J Dent Res

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Background:The success of endodontic treatment depends on detection of all root canals so that they could be cleaned, shaped and obturated appropriately. To achieve this, it is essential to know root canals complexities such as the number of canals and types of each root canal, which are genetically determined. Besides, the highest failure rates occur in maxillary first molars. Objectives: Therefore, the aim of this study was to investigate the root and canal morphology of maxillary first molars in an Iranian population using cone-beam computed tomography (CBCT). Materials and Methods: In this study, images of 156 extracted maxillary first molars placed in the waxed blocks were produced using CBCT. Two professional investigators checked images by NNT software in New Tom 3G system. Axial view and cross section of 1 mm thickness were used. The number of roots, canals, each roots canal, MB 1 -MB 2 orifice distances and canal types of the Vertucci classification were recorded. Finally, data was analyzed using SPSS16 software. Results: We found 100% of cases with three separated roots, from which 69.23% had four canals including MB 2 and 30.77% with three canals. 71.3% of mesiobuccal roots were two canals of type two Vertucci and 28.7% type 4 with the mean distance value of 2.55 ± 0.57 mm between MB 1 and MB 2 orifice. Conclusions: Most extracted maxillary first molars were three rooted and four canals. CBCT has relatively high reproducibility and accuracy of distinguishing MB 2 canal.

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“…A study by Pomeranz and Fishelberg (3) revealed a large discrepancy between clinical and laboratory results with regard to the incidence of MB2s. Although in vitro studies have also demonstrated that the incidence of MB2s is high, there is no consensus on the number of MB2s that are amenable to endodontic treatment (12,16) . To categorize the root canal system in each root, Weine described four different configurations: type I (a single canal from the pulp chamber to the apex), type II (2 separate canals that leave the chamber but merge short of the apex to form a single canal), type III (2 separate canals that leave the chamber and exit the root in separate foramina), and type IV (1 canal that leaves the chamber but divides short of the apex into 2 separate and distinct canals with separate foramina).…”

Section: Introductionmentioning

confidence: 99%

Detection of Second Canals in Mesial Root of Maxillary First Molars Using Different Evaluation Methods (In Vitro Study)

Mohammed¹,

Mohsen²,

Naser³

2016

Iraqi dent. j.

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Aim: The purpose of this study was to determine the number of canals treated in the mesio-buccal roots of the maxillary first molars in Iraqi population. Materials and Methods:The examiners verified the number of canals in the teeth using different methods including: magnifying lens, bubble test and radio graphical method. Results: In total, 200 maxillary first molars of which 148 teeth (74%) met the criterion of having two canals detected and treated in the mesio-buccal root of the maxillary first molars. Discussion and conclusion: The fact that almost more than half the mesio-buccal roots of the maxillary first molars bear two canals is enough reason to assume always that two canals exist until careful examination proves otherwise. According to this study there was no difference in the prevalence of 2 nd MB canal in maxillary 1 st molar between males and females.

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Root canal systems of the mandibular and maxillary first permanent molar teeth of South Asian Pakistanis

Cited by 96 publications

References 14 publications

Root Canal Morphology and Configuration of 179 Maxillary First Molars by Means of Micro–computed Tomography: An Ex Vivo Study

Root Canal Morphology and Configuration of 179 Maxillary First Molars by Means of Micro–computed Tomography: An Ex Vivo Study

Cone Beam Computed Tomography Study of Root and Canal Morphology of Maxillary first Molar in an Iranian Population

Detection of Second Canals in Mesial Root of Maxillary First Molars Using Different Evaluation Methods (In Vitro Study)

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