نتایج جستجو برای: conventional radiographs

تعداد نتایج: 274047  

A. Ghaznavi, S. Valizadeh, Z. Hosseini, Z. Jaberi Ansari,

Objective: When none of digital systems and scanners is accessible and it is essential to have digitized images of conventional radiographs, digital cameras can be used. The Aim of this study was to investigate whether digital images obtained by different resolutions of a digital camera are matched to the original radiographs in evaluation of caries. Methods: In this diagnostic accuracy in v...

Journal: :International journal of oral and maxillofacial surgery 2009
O J C van Vlijmen S J Bergé E M Bronkhorst G R J Swennen C Katsaros A M Kuijpers-Jagtman

This study evaluated whether measurements on conventional frontal radiographs are comparable with measurements on cone beam computed tomography (CBCT)-constructed frontal cephalometric radiographs taken from dry human skulls. CBCT scans and conventional frontal cephalometric radiographs were made of 40 dry skulls. With I-Cat Vision((R)) software, a cephalometric radiograph was constructed from ...

2017
Kholod Almanei Rakan Alsulaimani Sarah Alfadda Sarah Albabtain Reem Alsulaimani

Aim To compare digital images of conventional radiographs with the original radiographs for perceived clarity of periapical lesions and the quality of root canal treatment. Materials and Methods One hundred and four intraoral periapical radiographs of patients with endodontically treated teeth were randomly selected. The radiographs were digitized using an MD300 USB X-ray Reader. The digital ...

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
z. jaberi ansari dept. of restorative dentistry, school of dentistry, shahid beheshti university of medical sciences, tehran, iran. s. valizadeh dept. of oral & maxillofacial radiology, school of dentistry, shahid beheshti university of medical sciences, tehran, iran. z. hosseini dept. of orthodontics, school of dentistry, shahid beheshti university of medical sciences, tehran, iran. a. ghaznavi dept. of oral & maxillofacial radiology, school of dentistry, urmia university of medical sciences, urmia, iran.

objective: when none of digital systems and scanners is accessible and it is essential to have digitized images of conventional radiographs, digital cameras can be used. the aim of this study was to investigate whether digital images obtained by different resolutions of a digital camera are matched to the original radiographs in evaluation of caries. methods: in this diagnostic accuracy in vitr...

ژورنال: مجله دندانپزشکی 2003
باشی زاده فخار, حوریه, پنج نوش, مهرداد ,

Statement of Problem: Computer Sciences, in radiology, like other fields, is of high importance. It should also be noted that the accuracy of the technique and work conditions affects the radiographs information considerably. There for, in order to get more accurate diagnostic information, it seems necessary to investigate different digitized radiographic techniques and to compare them with the...

Journal: :International endodontic journal 2009
S Patel A Dawood E Whaites T Pitt Ford

Conventional radiographs used for the management of endodontic problems yield limited information because of the two-dimensional nature of images produced, geometric distortion and anatomical noise. These factors often act in combination. This review paper assesses the limitations of periapical radiographs and seeks to clarify three-dimensional imaging techniques that have been suggested as adj...

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