Identification of various orthodontic materials as foreign bodies via panoramic radiography, cone beam computed tomography, magnetic resonance imaging, and ultrasonography: an in vitro study

2021 ◽  
Author(s):  
Ozlem Isman ◽  
Eren Isman
2016 ◽  
Vol 121 (3) ◽  
pp. 316-321 ◽  
Author(s):  
Mohammed A.Q. Al-Saleh ◽  
Kumaradevan Punithakumar ◽  
Jacob L. Jaremko ◽  
Noura A. Alsufyani ◽  
Pierre Boulanger ◽  
...  

2017 ◽  
Vol 68 (2) ◽  
pp. 194-201 ◽  
Author(s):  
Reza Javadrashid ◽  
Masoud Golamian ◽  
Maryam Shahrzad ◽  
Parisa Hajalioghli ◽  
Zahra Shahmorady ◽  
...  

Purpose The study sought to compare the usefulness of 4 imaging modalities in visualizing various intraorbital foreign bodies (IOFBs) in different sizes. Methods Six different materials including metal, wood, plastic, stone, glass. and graphite were cut in cylindrical shapes in 4 sizes (dimensions: 0.5, 1, 2, and 3 mm) and placed intraorbitally in the extraocular space of fresh sheep's head. Four skilled radiologists rated the visibility of the objects individually using plain radiography, spiral computed tomography (CT), magnetic resonance imaging (MRI), and cone-beam computed tomography (CBCT) in accordance with a previously described grading system. Results Excluding wood, all embedded foreign bodies were best visualized in CT and CBCT images with almost equal accuracies. Wood could only be detected using MRI, and then only when fragments were more than 2 mm in size. There were 3 false-positive MRI reports, suggesting air bubbles as wood IOFBs. Conclusions Because of lower cost and using less radiation in comparison with conventional CT, CBCT can be used as the initial imaging technique in cases with suspected IOFBs. Optimal imaging technique for wood IOFBs is yet to be defined.


2017 ◽  
Vol 5 (3) ◽  
pp. 90 ◽  
Author(s):  
AntonioneSantos Bezerra Pinto ◽  
MatheusSantos Carvalho ◽  
AlanLeandro Carvalho de Farias ◽  
Brunna da Silva Firmino ◽  
LuisPaulo da Silva Dias ◽  
...  

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