Assessment of furcal perforations in the vicinity of different root canal sealers using a cone beam computed tomography system with and without the application of artifact reduction mode: an ex vivo investigation on extracted human teeth

2016 ◽  
Vol 121 (6) ◽  
pp. 657-665 ◽  
Author(s):  
Kıvanç Kamburoğlu ◽  
Funda Yılmaz ◽  
Elif Naz Yeta ◽  
Doĝukan Özen
2021 ◽  
Vol 6 (2) ◽  
pp. 101-105
Author(s):  
Kadam Krutika Kiran ◽  
Vagarali Hemant ◽  
Pujar Madhu A ◽  
Tamase Aishwarya S ◽  
Sahana Umesh

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.


2017 ◽  
Vol 43 (6) ◽  
pp. 1014-1017 ◽  
Author(s):  
Thiago Oliveira Sousa ◽  
Bassam Hassan ◽  
Hesam Mirmohammadi ◽  
Hagay Shemesh ◽  
Francisco Haiter-Neto

2018 ◽  
Vol 22 (1) ◽  
pp. 38-42
Author(s):  
Maria Elpida Kalaitzoglou ◽  
Eleni Kantilieraki ◽  
Charalampos Beltes ◽  
Christos Angelopoulos ◽  
Panagiotis Beltes

SummaryBackground/Aim: To analyze the internal morphology of mandibular incisors with two root canals using cone-beam computed tomography (CBCT). Material and Methods: 289 (143 central and 146 lateral) extracted intact mandibular incisors were radiographed for detection of a second root canal. The teeth presenting a second root canal were imaged with CBCT and evaluated regarding: root canal type, the distance of the cementoenamel junction (CEJ) to the bifurcation of the canals and the distance of the canal fusion to the apical foramen (in teeth in which canals rejoined). Results: Out of 143 central and 146 lateral mandibular incisors, 41 (28.7%) and 44 (30.1%) teeth respectively showed a second root canal. Types II, III, V and an additional type to Vertucci’s classification were identified. Type III was the most prevalent and presented in 30 (73.2%) central and 34 (77.3%) lateral mandibular incisors with two root canals. The mean values of the distance of the CEJ to the canal bifurcation were 4.2 mm and 4.0 mm for central and lateral mandibular incisors respectively. The mean values of the distance of the canal fusion to the apical foramen 5.5 mm and 5.1 mm for central and lateral mandibular incisors respectively. Conclusions: Mandibular incisors with two root canals mainly present with Vertucci’s Type 3 canal configuration. The canal bifurcation was identified mostly at the coronal and middle thirds of the root, while the canal fusion occurred in the middle third of the root.


2014 ◽  
Vol 2014 ◽  
pp. 1-7
Author(s):  
Raed Hakam Mukhaimer

Aim. The purpose of this study was to investigate the number of canals and variations in root canal configuration in the mandibular permanent first molar teeth of a Palestinian population using cone-beam computed tomography (CBCT). Methods. A sample of 320 extracted double-rooted mandibular permanent first molars from Palestinian population was collected for this study and scanned with CBCT scanner. The following observations were made: number of root canals per root and canal configuration in each root based on Vertucci’s classification. Results. Of the 320 mandibular first molars analyzed, 174 (54.4%) had three canals, 132 teeth (41.3%) had four canals, and only four teeth had two canals. The most common canal configuration in the mesial roots was Vertucci type IV (53.8%) followed by type II (38.8%). In the distal roots, the most prevalent canal configuration was Vertucci type I (57.5%) followed by type II ( 22.5%) and type III (10.6%). Conclusion. Our results showed that the number of canals and canal configuration in Palestinian population were consistent with previously reported data. The present study also indicates that CBCT is helpful as a diagnostic tool for the investigation of root canal morphology.


2013 ◽  
Vol 47 (1) ◽  
pp. 26-31 ◽  
Author(s):  
M. Brito-Júnior ◽  
L. A. N. Santos ◽  
A. L. Faria-e-Silva ◽  
R. D. Pereira ◽  
M. D. Sousa-Neto

Odontology ◽  
2021 ◽  
Author(s):  
Hazuki Miyashita ◽  
Rieko Asaumi ◽  
Ayaka Sakamoto ◽  
Taisuke Kawai ◽  
Masaru Igarashi

2015 ◽  
Vol 41 (10) ◽  
pp. 1678-1681 ◽  
Author(s):  
Hesam Mirmohammadi ◽  
Lamees Mahdi ◽  
Poerya Partovi ◽  
Abbasali Khademi ◽  
Hagay Shemesh ◽  
...  

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Eshaghali Saberi ◽  
Narges Farhad-Mollashahi ◽  
Shima Bijari ◽  
Mohammad Daryaeian

Introduction. This study is aimed at evaluating root canal transportation in the mesiobuccal canal of mandibular first molars prepared with One Shape, Reciproc, and M-One nickel titanium (NiTi) single-file rotary systems using cone beam computed tomography (CBCT). Materials and Methods. In this ex vivo study, CBCT scans of 45 extracted human mandibular first molars with 20–40° curvature were obtained. The teeth were randomly divided into three groups (n=15) for preparation of the mesiobuccal canal with One Shape, Reciproc, and M-One rotary systems according to the manufacturers’ instructions. CBCT scans were obtained again after canal preparation. Changes caused by preparation in the coronal, middle, and apical thirds were determined on CBCT scans and analyzed using the Kruskal–Wallis test at P≤0.05 level of significance. Results. No significant difference was noted in the amount of canal transportation among the three groups (P>0.05). M-One caused greater transportation in the apical third compared with Reciproc and One Shape, and One Shape caused greater transportation in the coronal third compared with other groups, although its magnitude was less than 0.3 mm. Conclusion. Reciproc, One Shape, and M-One are not significantly different in terms of canal transportation.


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