Accuracy of an electrical impedance device in estimation of remaining dentin thickness vs cone beam computed tomography

Odontology ◽  
2022 ◽  
Author(s):  
Hebatallah Sarhan ◽  
Hamdi Hamama ◽  
Wael Aboelmaaty ◽  
Ahmed Zaeneldin ◽  
Salah Mahmoud
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Electrical Impedance ◽  
Cone Beam ◽  
Dentin Thickness

Dentin Thickness of Pulp Chamber Floor in Primary Molars: Evaluation by Cone-Beam Computed Tomography

2021 ◽  
Vol 21 ◽  
Author(s):  
Mariane Bovino ◽  
Larissa de Souza Santos ◽  
Larissa Lopes Freitas de Albuquerque Cavalcante ◽  
Cacilda Castelo Branco Lima ◽  
Marina de Deus Moura de Lima ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Primary Molars ◽  
Pulp Chamber ◽  
Dentin Thickness ◽  
Chamber Floor

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

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.

scholarly journals Evaluation of remaining dentin thickness following use of three different rotary nickel–titanium retreatment files: A cone-beam computed tomography study

2019 ◽  
Vol 22 (6) ◽  
pp. 588
Author(s):  
NishitaRajeev Kulkarni ◽  
SharadBasavraj Kamat ◽  
SantoshIrappa Hugar ◽  
GirishShankar Nanjannawar ◽  
PranavDevendra Patil
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Nickel Titanium ◽  
Cone Beam ◽  
Dentin Thickness

scholarly journals Comparison of the effects of TripleGates and Gates-Glidden burs on cervical dentin thickness and root canal area by using cone beam computed tomography

2015 ◽  
Vol 23 (2) ◽  
pp. 164-168 ◽  
Author(s):  
Kássio SOUSA ◽  
Carlos Vieira ANDRADE-JUNIOR ◽  
Juliana Melo da SILVA ◽  
Marco Antonio Hungaro DUARTE ◽  
Gustavo DE-DEUS ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Root Canal ◽  
Cone Beam ◽  
Canal Area ◽  
Dentin Thickness

scholarly journals Motion-compensated cone beam computed tomography using a conjugate gradient least-squares algorithm and electrical impedance tomography imaging motion data

2015 ◽  
Vol 373 (2043) ◽  
pp. 20140390 ◽  
Author(s):  
T. Pengpen ◽  
M. Soleimani
Keyword(s):  
Computed Tomography ◽  
Radiation Therapy ◽  
Least Squares ◽  
Temporal Resolution ◽  
Cone Beam Computed Tomography ◽  
Conjugate Gradient ◽  
Electrical Impedance ◽  
Cone Beam ◽  
Impedance Tomography ◽  
Motion Data

Cone beam computed tomography (CBCT) is an imaging modality that has been used in image-guided radiation therapy (IGRT). For applications such as lung radiation therapy, CBCT images are greatly affected by the motion artefacts. This is mainly due to low temporal resolution of CBCT. Recently, a dual modality of electrical impedance tomography (EIT) and CBCT has been proposed, in which the high temporal resolution EIT imaging system provides motion data to a motion-compensated algebraic reconstruction technique (ART)-based CBCT reconstruction software. High computational time associated with ART and indeed other variations of ART make it less practical for real applications. This paper develops a motion-compensated conjugate gradient least-squares (CGLS) algorithm for CBCT. A motion-compensated CGLS offers several advantages over ART-based methods, including possibilities for explicit regularization, rapid convergence and parallel computations. This paper for the first time demonstrates motion-compensated CBCT reconstruction using CGLS and reconstruction results are shown in limited data CBCT considering only a quarter of the full dataset. The proposed algorithm is tested using simulated motion data in generic motion-compensated CBCT as well as measured EIT data in dual EIT–CBCT imaging.

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