نتایج جستجو برای: digital dental radiography

تعداد نتایج: 481226  

2014
Vahid Rakhshan

Digital radiographs need additional metadata in order to be accurate when being converted to analog media. Resolution is a major reason of failures in proper printing or digitizing the images. This letter shortly explains the overlooked pitfalls of digital radiography and photography in dental practice, and briefly instructs the reader how to avoid or rectify common problems associated with res...

2012
Eun-Kyung Kim Won-Jeong Han Jin-Woo Choi Yun-Hoa Jung Suk-Ja Yoon Jae-Seo Lee

PURPOSE The objectives of this study were to survey the radiographic exposure parameters, to measure the patient doses for intraoral dental radiography nationwide, and thus to establish the diagnostic reference levels (DRLs) in intraoral dental X-ray examination in Korea. MATERIALS AND METHODS One hundred two intraoral dental radiographic machines from all regions of South Korea were selected...

Journal: :Journal of dental education 2010
Laurence A Wynn David W Krause Allan Kucine Piya Trehan Arthur D Goren Dan C Colosi

In this article, we report on the evolution of a series of dental outreach missions sponsored by Stony Brook University to remote areas of Madagascar over a nine-year period. The project evolved from one dental resident performing only dental extractions in 1999 to a team comprised of two dentists, six third-year dental students, and two dental assistants performing dental restorations, extract...

Journal: :مجله تحقیق در علوم دندانپزشکی و فک و دهان 0
hafezi l mohebbi m

abstract background and aim: considering the widespread development of implants in dental treatment plans, linear measurements on panoramic radiography are of especial importance. in the present study we investigated the effect of head misalignment up to 15° around vertical and horizontal axes on the magnification rate of digital panoramic radiography in each part of upper and lower jaws. mater...

A. Eskandarlou, A.R. Mehdizadeh, K. Ghazi-Khanlou Sani,

Background: In recent decades many guidelines has been conducted by radiation protection organizations about radiation protection in dentistry. This study aimed to evaluate the observance of these guidelines in educational clinics of all dental schools in Iran. Material and Methods: In this cross-sectional study a self-administered questionnaire, based on National Radiation Protection ...

Journal: :iranian journal of radiation research 0
a. eskandarlou school of dentistry, department of radiology, hamadan university of medical sciences, hamadan, iran k. ghazi-khanlou sani school of para-medicine, department of radiology, hamadan university of medical sciences, hamadan, iran a.r. mehdizadeh school of medicine, department of medical physics, shiraz university of medical sciences, shiraz, iran

background: in recent decades many guidelines has been conducted by radiation protection organizations about radiation protection in dentistry. this study aimed to evaluate the observance of these guidelines in educational clinics of all dental schools in iran. material and methods: in this cross-sectional study a self-administered questionnaire, based on national radiation protection board (nr...

Journal: :The Bulletin of Tokyo Dental College 2006
Mamoru Wakoh Keiichi Nishikawa Takamichi Otonari Mika Yamamoto Takuya Harada Tsukasa Sano Yasutomo Yajima Toshiki Ooguro

The purpose of this study was to investigate digital subtraction technique in digital dental imaging for implant performance, used to quantitatively evaluate bone change around dental implants. For longitudinal assessment of peri-implant bone change, we applied subtraction technique to digital peri-apical radiographs using a digital dental imaging system in two cases at the upper canine and pre...

2009
Ozlem Gormez Hasan Huseyin Yilmaz

Image post-processing of dental digital radiographs, a function which used commonly in dental practice is presented in this article. Digital radiography has been available in dentistry for more than 25 years and its use by dental practitioners is steadily increasing. Digital acquisition of radiographs enables computer-based image post-processing to enhance image quality and increase the accurac...

Journal: :Pediatric dentistry 2003
Michael J Chong W Kim Seow David M Purdie Esther Cheng Vincent Wan

PURPOSE This laboratory study compared visual-tactile examination with conventional radiographs, digital radiographs, and laser fluorescence in the detection of occlusal occult caries on extracted premolar teeth. METHODS Extracted premolars without obvious caries or restorations were collected from school dental clinics. Occlusal surfaces of 320 extracted premolars were examined visually with...

Journal: :Dento maxillo facial radiology 2010
J K M Aps

The aim of this study was to assess general dental practitioners' knowledge of dental radiography and radiation protection in order to alert the Belgian authorities and dental professional societies. Prior to attending a postgraduate course on intraoral radiology, general dental practitioners in Flanders, Belgium, were asked to fill in a questionnaire regarding the radiological equipment and th...

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