Assessment of the Prevalence and Configuration of Middle Distal Canals in the Mandibular Molars in a Saudi Subpopulation Using Cone-Beam Computed Tomography

ABSTRACT Objective: The aim of this retrospective study was to determine the root and canal morphology of the mandibular first and second permanent molars in a Turkish population using cone-beam computed tomography (CBCT). Materials and Methods: CBCT images of mandibular first (n = 966) and second molar (n = 1165) teeth from 850 Turkish patients were evaluated. The root canal configurations were classified according to the method of Vertucci. The data were analyzed by Pearson's Chi-square test. Results: The majority of mandibular molars were two rooted with three canals; however, three roots were identified in 0.05% of the first molars and 0.01% of the second molars, and 100% of the additional root canals were of type I configuration. Mesial roots had more complex canal systems with more than one canal, whereas most distal roots had a type I configuration. Conclusions: Within the limitations of this study, it can be concluded that CBCT scanning provides supplemental information about the root canal configurations of mandibular molars in a Turkish population. This study may help clinicians in the root canal treatment of mandibular molars.

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A comparative study of cone-beam computed tomography and digital periapical radiography in detecting mandibular molars root perforations

Imaging Science in Dentistry ◽

10.5624/isd.2014.44.2.115 ◽

2014 ◽

Vol 44 (2) ◽

pp. 115 ◽

Cited By ~ 8

Author(s):

Sina Haghanifar ◽

Ehsan Moudi ◽

Abbas Mesgarani ◽

Ali Bijani ◽

Naghi Abbaszadeh

Keyword(s):

Computed Tomography ◽

Comparative Study ◽

Cone Beam Computed Tomography ◽

Cone Beam ◽

Mandibular Molars ◽

Periapical Radiography

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Validation of cone beam computed tomography as a clinical imaging method for dentin thickness measurement in the danger zone of mandibular molars

Revista da Faculdade de Odontologia - UPF ◽

10.5335/rfo.v23i1.8497 ◽

2018 ◽

Vol 23 (1) ◽

Author(s):

Fernanda Gomez Corrêa ◽

Claudia Bohrer Flores ◽

Flávia Kolling Marquezan ◽

Gabriela Salatino Liedke ◽

Gustavo Nogara Dotto ◽

...

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Thickness Measurement ◽

Cone Beam ◽

Imaging Method ◽

Danger Zone ◽

Mean Values ◽

Mandibular Molars ◽

Before And After ◽

Dentin Thickness

Objective: to verify the accuracy of cone beam computedtomography (CBCT) for measuring dentin thicknessin the danger zone of mandibular molars in order to validatethis method to be used as a clinical auxiliary. Materialsand method: dentin thickness of the distal wall ofmesial canals was measured at 2 mm of furcation areain ten mandibular molars before and after preparation ofcervical and middle thirds. CBCT (0.25 mm voxel size)and stereomicroscopy images were acquired twice foreach sample. CBCT axial images and stereomicroscopeimages were evaluated by a calibrated examiner. Statisticalanalysis was performed using Mann-Whitney testin order to investigate whether CBCT images providedtrusted values. Results: mean values of initial (1.23 versus1.24 mm) and final measurements (0.88 versus 0.87mm) obtained with, respectively, CBCT and stereomicroscopemethods did not show statistical differences(P > 0.5). Conclusion: CBCT images provide high accuracyfor measuring dentin thickness in the danger zoneof mandibular molars.Keywords: Cone beam computed tomography. Endodontics.Root canal preparation.

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Assessment of shaping ability of rotary and reciprocating file systems using cone-beam computed tomography in mandibular molars: An in vitro study

Endodontology ◽

10.4103/endo.endo_74_18 ◽

2019 ◽

Vol 31 (1) ◽

pp. 89

Author(s):

Anju Abraham ◽

Anika Mittal ◽

Sarita Singh ◽

Aditi Dhaundiyal ◽

Bidya Yendrembam ◽

...

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

File Systems ◽

In Vitro Study ◽

Vitro Study ◽

Cone Beam ◽

Mandibular Molars ◽

Shaping Ability

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Analysis of the internal anatomy of mandibular molars using different cone-beam computed tomography protocols

RSBO ◽

10.21726/rsbo.v17i1.275 ◽

2020 ◽

Vol 17 (1) ◽

pp. 12-20

Author(s):

Flares Baratto-Filho ◽

Nathaly Dias Morais ◽

Kauhanna Vianna de Oliveira ◽

Flávia Sens Fagundes Tomazinho ◽

Carla Castiglia Gonzaga ◽

...

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Root Canal ◽

Anatomical Variations ◽

Cone Beam ◽

Type I ◽

Root Canals ◽

Mandibular Molars ◽

Type V ◽

Level Of Agreement

The aim of this study was to analyze the root canal anatomy variations of permanent mandibular molars using three different cone-beam computed tomography (CBCT) protocols. Material and methods: Thirty-five freshly extracted first and second mandibular molars were collected and subjected to three CBCT protocols: i-CAT Classic (ICC); i-CAT Next Generation (ICN), and PreXion 3D (PXD). Images were evaluated by two previously calibrated and experienced endodontists. The morphological root canal configurations were classified according to Vertucci. Data were analyzed for frequency, and the binomial and Kappa tests were then performed (α = 0.05). Results: ICC and ICN were able to diagnose a higher percentage of anatomical variations in the mesial roots. In this same root, Vertucci’s type V was the most prevalent, and in distal was the type I. In comparisons of CBCT techniques for agreement, significant differences in the mesial root canals were found in the following: ICC versus (vs) ICN; ICC vs PXD; and ICN vs PXD (p <0.001). However, there were no statistical differences in the distal root canals (p >0.05). The level of agreement in mesial roots was poor or absent, while in distal was moderate.

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