نتایج جستجو برای: periapical radiography parallel film holder

تعداد نتایج: 344406  

Journal: :journal of medical signals and sensors 0
raheleh kafieh mahdi shahmoradi ehsan hekmatian mehrdad foroohandeh mostafa emamidoost

objectives : to carry out in vivo and in vitro comparative pilot study to evaluate the preciseness of a newly proposed digital dental radiography setup. this setup was based on markers placed on an external frame to eliminate the measurement errors due to incorrect geometry in relative positioning of cone, teeth and the sensor. methods : five patients with previous panoramic images were selecte...

ژورنال: مجله دندانپزشکی 2013
رفوآ, یوشیاهو , ساروی, محمد ابراهیمی , شریفی, رضا , نظری داشلی برون, یونس ,

  Background and Aims: Impacted third molar reduces the bone level in the distal aspect of second molar, and sometimes it can lead to root resorption of the adjacent tooth. The purpose of this study was to determine this resorption using panoramic and periapical radiographs.   Materials and Methods: In this cross-sectional descriptive study 54 patient (28 men, 26 women) above 15 years old with ...

2012
An De Hauwere Hubert Thierens

The impact of digitalization on the average glandular doses in 49 mammographic units participating in the Flemish Breast Cancer Screening Program was studied. Screen-film was changed to direct digital radiography and computed radiography in 24 and 25 departments respectively. Average glandular doses were calculated before and after digitalization for different PMMAphantom thicknesses and for gr...

Journal: :iranian journal of radiology 0
farida abesi dental materials research center, department of oral and maxillofacial radiology, dental faculty, babol university of medical sciences, iran +98- 1112291408-9,, [email protected] alireza mirshekar dental materials research center, department of oral and maxillofacial radiology, dental faculty, babol university of medical sciences, iran +98- 1112291408-9,, [email protected]; dental materials research center, department of oral and maxillofacial radiology, dental faculty, babol university of medical sciences, iran +98- 1112291408-9,, [email protected] ehsan moudi dental materials research center, department of oral and maxillofacial radiology, dental faculty, babol university of medical sciences, iran +98- 1112291408-9,, [email protected] maryam seyedmajidi dental materials research center, department of oral and maxillofacial radiology, dental faculty, babol university of medical sciences, iran +98- 1112291408-9,, [email protected] sina haghanifar dental materials research center, department of oral and maxillofacial radiology, dental faculty, babol university of medical sciences, iran +98- 1112291408-9,, [email protected] nima haghighat student research committee of babol university, dental faculty, babol university of medical sciences, mazandaran

background radiography plays an important role in the detection of interproximal caries. objectives the aim of the present study was to determine diagnostic accuracy of chargecoupled devices (ccd), photo stimulable phosphor (psp) and film radiography in detecting non-cavitated caries. patients and methods seventy-two non-cavitated approximal surfaces of extracted human posterior teeth were radi...

Journal: :Japanese Journal of Radiological Technology 1986

2006
Uwe Ewert

New digital detectors were developed for medical applications, which have the potential to substitute the X-ray film. Digital Detector Arrays (DDA: Flat Panel Detectors, Line Detectors) and Imaging Plates (Computed Radiography, CR) allow a fast acquisition of radiographic images with higher dynamic than film. Especially DDA’s allow a radiographic inspection with considerable higher image qualit...

Journal: :مجله دانشکده دندانپزشکی مشهد 0
مژده مژده مهدیزاده mozhdeh mahdizadeh assistant professor, dept of oral & maxillofacial radiology, school of dentistry, isfahan university of medical sciences, isfahan, iran.استادیار دانشکده دندانپزشکی دانشگاه علوم پزشکی اصفهان ابراهیم ابراهیم علاسوندیان ebrahim alaesvandian dentistدندانپزشکسازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (isfahan university of medical sciences)

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