scholarly journals Occurrence and Morphology of MB2 Canals in Maxillary First Molars in an Indian Subpopulation: A Cone Beam Computed Tomography Study

2021 ◽  
Author(s):  
Aditya Shetty ◽  
Raksha Bhat ◽  
Bessy Babu ◽  
Mithra N. Hegde ◽  
Chitharanjan Shetty ◽  
...  
Keyword(s):  
Root Canal ◽  
Cone Beam Ct ◽  
Descriptive Analysis ◽  
Conventional Radiography ◽  
Cone Beam ◽  
Inclusion Criteria ◽  
Type Iv ◽  
Maxillary Molars ◽  
Root Canal Anatomy ◽  
Case Basis

Abstract Introduction Molars have been known to display varied morphologies. Maxillary first molar is the tooth with the largest volume and most complex root and root canal anatomy; also, possibly the most treated and least understood posterior tooth. The present study aimed to investigate the occurrence and morphology of MB2 canals in maxillary first molars in an Indian subpopulation (Dakshina kannada) using cone beam CT (CBCT) imaging. Materials and Methods A total of 330 maxillary molars were placed on “U-” shaped modelling wax template, mimicking the natural arch and digitally scanned, of which 196 scans met the inclusion criteria and were analyzed for unusual root canal anatomy by CBCT. To analyze the occurrence and morphology of the canals, the acquired data was examined by two endodontists and discussed till an agreement was reached. Results The results were subjected to descriptive analysis. The majority of patients 103 (52.6%) teeth showed the presence of MB2 canals. As much as 83.5% of teeth depicted Vertucci's type II morphology, and 16.5% teeth presented with Vertucci's type IV morphology. Conclusion CBCT overcomes the limitations of conventional radiography. However, the decision to use CBCT in the management of endodontic problems must be based on a case-by-case basis and only when sufficient diagnostic information is not obtained from diagnostic tests.

scholarly journals Interrelationships in the Variability of Root Canal Anatomy among the Permanent Teeth: A Full-Mouth Approach by Cone-Beam CT

PLoS ONE ◽  
2016 ◽  
Vol 11 (10) ◽  
pp. e0165329 ◽  
Author(s):  
Paul Monsarrat ◽  
Bertrand Arcaute ◽  
Ove A. Peters ◽  
Elisabeth Maury ◽  
Norbert Telmon ◽  
...  
Keyword(s):  
Root Canal ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Permanent Teeth ◽  
Root Canal Anatomy

scholarly journals An investigation into dose optimisation for imaging root canal anatomy using cone beam CT

2020 ◽  
Vol 49 (7) ◽  
pp. 20200072
Author(s):  
Margarete B McGuigan ◽  
Christie Theodorakou ◽  
Henry F Duncan ◽  
Jonathan Davies ◽  
Anita Sengupta ◽  
...  
Keyword(s):  
Image Quality ◽  
Root Canal ◽  
Image Quality Assessment ◽  
Cone Beam Ct ◽  
Threshold Level ◽  
Cone Beam ◽  
Subjective Image Quality ◽  
Dose Area Product ◽  
Junior Staff ◽  
Root Canal Anatomy

Objectives: To identify a dose as low as diagnostically acceptable and a threshold level of image quality for cone beam CT (CBCT) imaging root canals, using maxillary first molar (M1M) second mesiobuccal (MB2) canals of varying complexity for two CBCT scanners. Methods: Dose–area product (DAP) and contrast-to-noise ratio (CNR) were measured for two scanners at a range of exposure parameters. Subjective-image-quality assessment at the same exposures was performed for three M1Ms of varying MB2 complexity, positioned in an anthropomorphic phantom. Nine raters (three endodontists, three dental radiologists and three junior staff) assessed canal visibility, using a 5-point confidence scale rating. Results: Identification of simple-moderate MB2 canal complexity was achieved at a range of protocols, with DAP values of ≥209.3 and ≥203.2 mGy cm² and CNRs of 3 and 7.6 for Promax®3D and Accuitomo-F170® respectively. For complex canal anatomy, target subjective image quality was not achieved, even at the highest DAP values for both scanners. Junior staff classified significantly more images as undiagnostic compared with senior staff (p = 0.043). Conclusions: In this first study to address optimisation of CBCT imaging of root canal anatomy, a similar threshold dose for both scanners was identified for M1Ms with simple-moderate MB2 canal complexity. Increasing dose to enhance visualisation of more complex canal anatomy was ineffective. Selection of standard protocols (while avoiding lower kV/mA protocols) instead of high-resolution scans was a practical means of reducing patient dose. CNR is not a transferable measure of image quality.

scholarly journals Endodontic Management of a Maxillary First Molar with Two Palatal Canals and a Single Buccal Canal: A Case Report

2012 ◽  
Vol 2012 ◽  
pp. 1-4 ◽  
Author(s):  
Leila Atash biz Yeganeh ◽  
Mamak Adel ◽  
Reza Vahedi ◽  
Maryam Tofangchiha
Keyword(s):  
Computed Tomography ◽  
Treatment Outcome ◽  
Case Report ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Root Canals ◽  
Type Iv ◽  
Maxillary Molars ◽  
Root Canal Morphology ◽  
Canal Morphology

Thorough knowledge of root canal morphology is essential for the endodontic therapy. There are rare variations in canal number and configuration in maxillary molars, which could affect treatment outcome. This paper presents the endodontic management of a maxillary first molar with two palatal canals in one root (Vertucci type IV) and a single buccal canal. In this paper cone-beam computed tomography was made to asses this morphology. This paper is intended to reinforce clinician’s awareness of the rare morphology of root canals.

scholarly journals Use of Cone Beam Computed Tomography to Identify the Morphology of Maxillary and Mandibular Premolars in Chennai Population

2019 ◽  
Vol 22 (1) ◽  
pp. Process
Author(s):  
Rajamohan Rajakeerthi ◽  
Malli Suresh Babu Nivedhitha
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Root Canal ◽  
Treatment Success ◽  
Cone Beam ◽  
Type I ◽  
Root Canals ◽  
Computed Tomographic ◽  
Root Canal Anatomy ◽  
Computed Tomography Scanning

Objective: The complex root canal anatomy is inherently colonised by microbial flora. Endodontic treatment success is always related to adequate disinfection of the root canal space, which ultimately affects the treatment outcome. A thorough understanding of the external and internal root canal anatomy by using adequately imaging modalities is essential before planning any treatment. The aim of this study was to investigate the number and morphology of the root canals of maxillary and mandibular premolars in Chennai population. Material and Methods: Full-size cone-beam computed tomographic images were randomly collected from 100 patients, resulting in a total of 200 first and 200 second maxillary premolars as well as 200 first and 200 second mandibular premolars. All the eight premolars were analysed in single patients, who underwent cone-beam computed tomography scanning during pre-operative assessment (before implant surgery, orthodontic treatment, diagnosis of dental-alveolar trauma or difficult root canal treatment). Total number of roots and root canals, frequency and correlations between men and women were recorded and statistically analysed by using chi-square tests. The root canal configurations were rated according to the Vertucci’s classification. Results: In the maxillary first premolar group (n = 200), 36.3% had 1 root, 56.7% had 2 roots and 7.0% had 3 roots, with most exhibiting a type IV canal configuration. In the maxillary second premolar group (n = 200), 60% had 1 root, 29.8% had 2 roots and 10.2% had 3 roots, with the majority of single-rooted second premolars exhibiting a type I canal configuration. In the mandibular first premolar group (n = 200), 80.5% had 1 root, 9.8% had 2 roots and 5% had 3 roots. In the mandibular second premolar group (n=200), 90.1% had 1 root, 6.4% had 2 roots and 3.5 % had 3 roots, with most exhibiting a type I canal configuration. No statistical correlation was found between number of roots, gender and tooth position. Conclusion: This cone-beam computed tomographic study confirmed previous anatomical and morphological investigations. Therefore, the possibility of additional root canals should be considered when treating premolars. Keywords: Cone-beam computed tomography; Mandibular; Maxillary; Premolar; Root canal; Morphology.

scholarly journals Retrospective study of root canal configurations of maxillary third molars in Central India population using cone beam computed tomography Part- I

2016 ◽  
Vol 10 (01) ◽  
pp. 097-102 ◽  
Author(s):  
Manjusha Rawtiya ◽  
Pavithra Somasundaram ◽  
Shefali Wadhwani ◽  
Swapna Munuga ◽  
Manish Agarwal ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Central India ◽  
Cone Beam ◽  
Type I ◽  
Third Molars ◽  
Type Iv ◽  
Maxillary Molars ◽  
High Prevalence ◽  
Cbct Analysis

ABSTRACT Objective: The aim of this study was to investigate the root and canal morphology of maxillary third molars in Central India population using cone-beam computed tomography (CBCT) analysis. Materials and Methods: CBCT images of 116 maxillary third molars were observed, and data regarding the number of roots, the number of canals, and Vertucci's Classification in each root was statistically evaluated. Results: Majority of Maxillary third molars had three roots (55.2%) and three canals (37.9%). Most MB root (43.8%), DB root (87.5%), and palatal root (100%) of maxillary third molars had Vertucci Type I. Mesiobuccal root of three-rooted maxillary third molars had Vertucci Type I (43.8%) and Type IV (40.6%) configuration. Overall prevalence of C-shaped canals in maxillary third molars was 3.4%. Conclusion: There was a high prevalence of three-rooted maxillary molars with three canals.

Evaluation of Root Canal Configuration of Maxillary Molars in a Brazilian Population Using Cone-beam Computed Tomographic Imaging: An In Vivo Study

2014 ◽  
Vol 40 (2) ◽  
pp. 173-176 ◽  
Author(s):  
Emmanuel João Nogueira Leal Silva ◽  
Yuri Nejaim ◽  
Amaro I.V. Silva ◽  
Francisco Haiter-Neto ◽  
Alexandre A. Zaia ◽  
...  
Keyword(s):  
Root Canal ◽  
Tomographic Imaging ◽  
Brazilian Population ◽  
In Vivo Study ◽  
Cone Beam ◽  
Computed Tomographic ◽  
Maxillary Molars ◽  
Computed Tomographic Imaging

scholarly journals Prevalence of Root Canal Configuration of Mandibular Second Molar Using Cone-Beam Computed Tomography in a Sample of Iraqi Patients

2021 ◽  
Vol 11 (1) ◽  
pp. 22-26
Author(s):  
Hiwa S. Khidir ◽  
Saud J. Dizayee ◽  
Sangar H. Ali
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Root Canal ◽  
Root Resorption ◽  
Cone Beam ◽  
Inclusion Criteria ◽  
Posterior Teeth ◽  
Second Molar ◽  
Significant Difference ◽  
Mandibular Second Molar

Introduction: The purpose of this study was to find out the prevalence of C-shaped canals configurations in mandibular 2nd molar and to investigate the gender prevalence. Materials and Methods: A sample of 1200 patients’ cone beam computed tomography (CBCT) scans were screened and evaluated by a maxillofacial radiologist assessed the axial, sagittal, and coronal sections. Inclusion criteria applied to 801 patients (452 females and 349 male) aged 14–75 years were included in this study with total of 1567 mandibular 2nd molar was evaluated. Inclusion criteria: Available CBCT images of mandibular posterior teeth with at least one mandibular 2nd molar in the scan, absence of root canal treatment, absence of coronal or post coronal restorations, absence of root resorption or periapical lesions, and high-quality images. Canal configuration was classified by criteria’s which described by Fan et al. (2004): (i) Fused roots, (ii) a longitudinal groove on the buccal or lingual surface of the root, and (iii) at least one cross-section of the canal belongs to the C1, C2, or C3 configuration. Results: Considering 801 patients, 97 (12.1%) patients females 57 (7.1%) and 40 (5%) males had a C-shaped canal with no statistical difference between females and males (P > 0.05). Conclusion: The occurrence of C- shaped canal mandibular 2nd molar is approximately 12.1% and no significant difference was found by gender.

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