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

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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Evaluation of Distolingual Canal/Roots in Mandibular Molars and Mesiobuccal Canals in Maxillary Molars by CBCT

The Open Dentistry Journal ◽

10.2174/1874210601711010360 ◽

2017 ◽

Vol 11 (1) ◽

pp. 360-366 ◽

Cited By ~ 5

Author(s):

Filiz Namdar Pekiner ◽

M. Oğuz Borahan ◽

Asım Dumlu

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Root Canal ◽

Root Canal Treatment ◽

Cone Beam ◽

Patient Age ◽

Root Canals ◽

Mandibular Molars ◽

Maxillary Molars ◽

Distolingual Canal

Background/Purpose: The objectives of this study were to identify the bilateral distolingual (DL) canals / roots of the mandibular first molars and second mesiobuccal (MB2) canals of the maxillary first molars in the same Turkish individuals using cone-beam computed tomography (CBCT). Materials and Methods: A total of 150 CBCT images including all mandibular and maxillary first molars were retrospectively investigated in a Turkish subpopulation. The patient age, sex and presence of roots and root canals were assessed. The frequency, of bilateral DL canals, DL roots, and MB2 canals were reviewed. Data were analyzed using Fisher’sexact test and Chi-square test. Results: The prevalences of right DL canals, DL roots and MB2 canals were 31.3, 14.0 and 34.7%, respectively. The prevalences of left DL canals, DL roots and MB2 canals were 31.3, 4 and 27.3%, respectively. There was no statistically difference in the frequency of right and left DL canals, DL roots of mandibular first molars and MB2 canals of maxillary first molars according to gender. Conclusion: CBCT is a competent tool for the detection of additional distolingual canals/roots and second mesio buccal canals, and it is a valuable aid for dentists providing root canal treatment.

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Retreatment of a Maxillary Lateral Incisor With Two Separate Root Canals Confirmed With Cone Beam Computed Tomography

Journal of Clinical Medicine Research ◽

10.14740/jocmr2154w ◽

2015 ◽

Vol 7 (7) ◽

pp. 560-563

Author(s):

Seda Aydemir ◽

Dilek Helvacioglu-Yigit ◽

Alper Sinanoglu ◽

Emre Ozel

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Lateral Incisor ◽

Cone Beam ◽

Root Canals ◽

Maxillary Lateral Incisor

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Maxillary first molar with 7 root canals diagnosed using cone-beam computed tomography

Restorative Dentistry & Endodontics ◽

10.5395/rde.2017.42.1.60 ◽

2017 ◽

Vol 42 (1) ◽

pp. 60 ◽

Cited By ~ 2

Author(s):

Evaldo Rodrigues ◽

Antônio Henrique Braitt ◽

Bruno Ferraz Galvão ◽

Emmanuel João Nogueira Leal da Silva

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Cone Beam ◽

Root Canals

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The ability of cone-beam computed tomography to detect simulated buccal and lingual recesses in root canals

International Endodontic Journal ◽

10.1111/j.1365-2591.2012.02025.x ◽

2012 ◽

Vol 45 (8) ◽

pp. 724-729 ◽

Cited By ~ 10

Author(s):

Y.-H. Liang ◽

M. Yuan ◽

G. Li ◽

H. Shemesh ◽

P. R. Wesselink ◽

...

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Cone Beam ◽

Root Canals

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

Case Reports in Dentistry ◽

10.1155/2012/389387 ◽

2012 ◽

Vol 2012 ◽

pp. 1-4 ◽

Cited By ~ 2

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.

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

Brazilian Dental Science ◽

10.14295/bds.2019.v22i1.1673 ◽

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.

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Comparative Analysis of Capabilities of Different Types of Cone-Beam Tomography in an Experimental Study of Root Canals of Teeth Filled with High-Density Materials (part 2)

Radiology - Practice ◽

10.52560/2713-0118-2021-2-51-61 ◽

2021 ◽

pp. 51-61

Author(s):

A. Yu. Vasil'ev ◽

V. V. Petrovskaya ◽

E. A. Nichipor ◽

V. G. Alpatova ◽

N. N. Potrakhov ◽

...

Keyword(s):

Computed Tomography ◽

Experimental Study ◽

Cone Beam Computed Tomography ◽

Comparative Assessment ◽

High Density ◽

Cone Beam ◽

Root Canals ◽

Different Types ◽

Before And After ◽

Cone Beam Tomography

During the course of this experimental study tomograms of extracted teeth were analyzed before and after filling the root canals with an endodontic material and fragments of broken metal instruments for root canal treatment. During the first stage of the experiment, untreated extracted teeth were scanned using conebeam computed tomography and microfocus cone-beam computed tomography. A comparative assessment of capabilities of the two methods of cone-beam computed tomography based on examination of untreated root canals was carried out. The second part of the study is dedicated to visualization of root canals that contain foreign high-density materials.

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Comparative evaluation of shaping ability of trunatomy and protaper gold files in curved canals using cone?beam computed tomography: An invitro study

IP Indian Journal of Conservative and Endodontics ◽

10.18231/j.ijce.2021.023 ◽

2021 ◽

Vol 6 (2) ◽

pp. 101-105

Author(s):

Kadam Krutika Kiran ◽

Vagarali Hemant ◽

Pujar Madhu A ◽

Tamase Aishwarya S ◽

Sahana Umesh

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Root Canal ◽

Cone Beam ◽

Human Teeth ◽

Root Canals ◽

Before And After ◽

Canal Transportation ◽

Group 2 ◽

Shaping Ability

This study aimed to compare the canal transportation and canal centering ability in the preparation of curved root canals after instrumentation with TruNatomy (TN) (TN; Dentsply Sirona, Maillefer, Ballaigues, Switzerland) and ProTaper Gold (PG) (PG; Dentsply, Tulsa Dental Specialties, Tulsa, OK, USA) files using cone‑beam computed tomography (CBCT). 30 Single rooted extracted human teeth with root curvature ranging from 20-30° according to Schneider’s method were selected. Teeth with any visible cracks or fractures, calcifications, previous root canal treatments were excluded. The teeth were randomly assigned into two groups i.e. Group 1-TN and Group 2-PG (n = 15 each). The teeth were instrumented according to manufacturer’s guidelines for both the groups. Canals were scanned using a CBCT scanner before and after preparation to evaluate the transportation and centering ratio at 3 mm, 5 mm, and 7 mm from the apex. The data analysis was done using SPSS software and the test used was independent sample t test for comparison between the 2 groups.Data obtained suggested that TN group presented lesser canal transportation at the middle third of the root. The PG group showed better centering abitily at apical third of the root canal when both the groups were compared. TN resulted in less transportation than PG at the middle third, and PG showed better centering ability at the apical third. Overall, both systems safely prepared root canals, causing minimal errors.

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