Assessment of the number of root canals in the maxillary and mandibular molars: A radiographic study using cone beam computed tomography

Kashyap, Roopashri Rajesh; Beedubail, Siri Parvathi; Kini, Raghavendra; Rao, Prasanna Kumar

doi:10.4103/jcd.jcd_73_17

Cited by 18 publications

(11 citation statements)

References 6 publications

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“…The prevalence obtained by Kewalramani R (2019) 9 was 61.9% which was similar to our study. In contrast, Neelakantan P et al 10 and Karunakar et al 11 have reported low prevalence of MB2 in maxillary first molars in Indian population to be 44.1% and 47.1%, respectively and Kashyap RR et al 12 found MB2 canal in 76.5% of maxillary first molars which is higher than our results. Age Group II showed high prevalence of MB2 canal than group I followed by age group III.…”

Section: Discussioncontrasting

confidence: 90%

Prevalence of mesiobuccal 2 canal in first maxillary molar: A retrospective radiographic study

Chalkoo¹,

Sheikh²,

Begum³

2021

IJMI

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Finding two mesiobuccal root canals named MB1and MB2 in maxillary first molar is not uncommon. Mesio-buccal-2 (MB2) canal orifice located palatally to the mesio buccall orifice and buccally as well as mesially to palatal orifices. A complete understanding of MB2 root canal morphology can contribute to the successful outcome of root canal treatment. This study conducted on CBCT scans with age ranged from 15 to 60 years which was further divide into group I (15-30 years), group II (30-45 years) and group III (45-60 years). Unilateral as well as bilateral prevalence of MB2 canal in maxillary first molar in both the genders and prevalence of MB2 canal in maxillary first molar in accordance with age were determined. Results showed overall prevalence of MB2 canal in maxillary first molar was 60.7%. In age wise distribution, group II showed greater prevalence than group I and group III showed least prevalence than others. The results were statistically significant between age groups. There was no statistical significance obtained between gender and quadrant wise. Conventional diagnostic aids such as radiographs play an important role in assessment of complex root canal morphologies. These modalities, however, do not provide detailed information of the complexity as a result of their inherent limitations. Shifting from 2D radiographic techniques to 3D radiographic techniques provides better visualization and location of these small and difficult structures.

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Section: Discussioncontrasting

confidence: 90%

Prevalence of mesiobuccal 2 canal in first maxillary molar: A retrospective radiographic study

Chalkoo¹,

Sheikh²,

Begum³

2021

IJMI

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“…This was consistent with other CBCT studies done on Indian population. 19,20 MB2 canal tends to appear bilaterally, which is similar to that reported by Kashyap RR, 21 in Indian population. This emphasizes that when MB2 exists on one side, the clinician must consider searching for MB2 on the contralateral side.…”

Section: Discussionsupporting

confidence: 87%

The second mesiobuccal canal in three-rooted maxillary first molar of Karnataka Indian sub-populations: A cone-beam computed tomography study

Kewalramani¹,

Murthy

Gupta

2019

Journal of Oral Biology and Craniofacial Research

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Introduction: Elusive second mesiobuccal canal (MB2) in maxillary first molar are often missed during endodontic therapy and are a major cause of treatment failures. Its prevalence is known to vary among different populations and there is limited information on its prevalence in Indian population. Aim: This study investigated the prevalence and location of second mesiobuccal (MB2) canal in mesiobuccal root of maxillary first molar using cone beam computed tomography (CBCT) images in an Indian population. Materials and methods: CBCT images of 598 three rooted maxillary first molars were studied. In each CBCT image, the floor of pulp chamber was located and advanced by 2 mm to standardize the observation for MB2 canal. Its location was determined in relation to mesiobuccal (MB1) and palatal (P) canal. Statistical analysis: The data was analysed using descriptive statistics. The presence of MB2 canal was correlated with age, gender and tooth position using Chi square test. Results: The prevalence of MB2 canal in three rooted maxillary first molar was 61.9%. It was seen that the prevalence of MB2 was highest in 20-40years age group (67.4%) followed by > 40 years (57.5%) and lowest in < 20 years (50.6%) and the difference was statistically significant (p = 0.005). It is located mesiopalatally; 2.5 mm ± 0.6 mm palatally and 1.0 ± 0.4mmmesially to the MB1 canal or present directly on the line joining the MB1 and palatal canal. Conclusion: There is a high probability of finding MB2 canal in Indian patients. The access cavity must be modified from a triangular shape to rhomboid shape. Troughingmesiopaltally (about 2.5 mm palatally and 1 mm mesially) from MB1 to a depth of about 2 mm from the floor of pulp chamber may be necessary for locating MB2 canal.

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“…[ 22 ] (86%) and Kashyap et al . [ 23 ] (76.5%) reported similar results in a retrospective study done using CBCT in an Indian population. However, Kewalramani et al .…”

Section: Discussionsupporting

confidence: 53%

Root canal isthmi and interorifice distance in human permanent teeth of an Indian subpopulation using cone.beam computed tomography: A retrospective cross-sectional study

et al. 2020

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Objective: The aim of the study was to evaluate the prevalence of root canal isthmus (RCI) and measure the interorifice distance (IOD) between the root canals. Additionally to correlate IOD with the RCI in human permanent teeth using conebeam computed tomography (CBCT) in an Indian sub-population (Chennai). Materials and Methods: A total of 5881 teeth from 280 CBCT full mouth scans were analyzed. The presence or absence of complete and incomplete RCI of each tooth was identified using the map-reading strategy. IOD was calculated by measuring the distance between the center of each root canal orifice to that of the center of the adjacent orifice at the level of the cementoenamel junction using the axial and sagittal sections. Chi-square analysis and correlation statistics using Spearman's rank-order test was done ( P < 0.05). Results: High prevalence of RCI was found in maxillary first premolars, mesial root of mandibular molars, and mesiobuccal root of maxillary first molars, while its prevalence was low in maxillary canines and mandibular premolars and absent in maxillary incisors. RCI was predominantly seen in the cervical and middle third of the root canal in all the teeth evaluated. A weak negative correlation was established between the IOD and RCI for maxillary premolars, whereas a weak positive correlation was seen in maxillary first molars and mandibular second molars. Conclusion: The prevalence of RCI was high in the posterior teeth in comparison to the anterior teeth in the present study. There was no strong correlation between IOD and RCI in all the teeth evaluated.

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Assessment of the number of root canals in the maxillary and mandibular molars: A radiographic study using cone beam computed tomography

Cited by 18 publications

References 6 publications

Prevalence of mesiobuccal 2 canal in first maxillary molar: A retrospective radiographic study

Prevalence of mesiobuccal 2 canal in first maxillary molar: A retrospective radiographic study

The second mesiobuccal canal in three-rooted maxillary first molar of Karnataka Indian sub-populations: A cone-beam computed tomography study

Root canal isthmi and interorifice distance in human permanent teeth of an Indian subpopulation using cone.beam computed tomography: A retrospective cross-sectional study

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