نتایج جستجو برای: conventional radiography

تعداد نتایج: 276463  

Journal: :Journal of the College of Physicians and Surgeons--Pakistan : JCPSP 2008
Waseem Akhtar Mubashir Aslam Arif Ali Kashif Mirza Nadeem Ahmad

OBJECTIVE To determine the film-retake rates and causes in digital radiography comparison to conventional X-rays method. STUDY DESIGN Comparative study. PLACE AND DURATION OF STUDY Radiology Department, Aga Khan University Hospital, Karachi, from January 2004 to December 2006. PATIENTS AND METHODS X-rays of different body parts, conducted during the year 2004, with conventional radiograph...

Journal: :iranian journal of radiation research 0
m. hajizadeh saffar medical physic research centre, bu-ali research institute, mashhad medical school, mashhad, iran s. nekoee medical physic research centre, bu-ali research institute, mashhad medical school, mashhad, iran e. hajizadeh saffar medical physic research centre, bu-ali research institute, mashhad medical school, mashhad, iran

background: a study has been conducted to assess two useful radiation protection indices, the annual per-capita effective dose equivalent (aed) and the genetically significant dose (gsd), from conventional diagnostic radiography in 10 counties with more than 1,886,000 inhabitants in khorasan province in iran. materials and methods: the health centre authorities of khorasan province were asked t...

Journal: :journal of dentomaxillofacil radiology, pathology and surgery 0
elnaz mousavi department of endodontics, school of dentistry, guilan university of medical sciences, rasht, iran maryam mohajer saem guilan university of medical sciences-international branch, research committee member zahra atrkar roshan department of biostatics, guilan university of medical sciences, rasht, iran zahra pourhabibi school of dentistry, guilan university of medical sciences, rasht, iran

introduction: the exact measurement of the root canal length is of great importance in root canal therapy. although, determination of the root canal length through radiography is the most common method, recently electronic apex locators are being used to determine working length and decrease the number of radiographs. the purpose of this study was to compare the accuracy of an electronic apex l...

ژورنال: مجله دندانپزشکی 2005
, سلطانی محمدآبادی, مهدی , عزالدینی اردکانی, فاطمه , گودرزی‌پور, داریوش ,

Background and Aim: Proper shaping and cleaning of the root canal system is one of the most important aspects of endodontic treatment. To estimate the canal length before instrumentation in endodontic treatment, traditionally, conventional radiographic techniques and recently Direct Digital Radiography (DDR) are applied. The application of computer technology to radiography has allowed less exp...

Elnaz Mousavi, Maryam Mohajer Saem, Zahra Atrkar Roshan, Zahra Pourhabibi,

Introduction: The exact measurement of the root canal length is of great importance in root canal therapy. Although, determination of the root canal length through radiography is the most common method, recently electronic apex locators are being used to determine working length and decrease the number of radiographs. The purpose of this study was to compare the accuracy of an electronic apex l...

Journal: :Annals of the Academy of Medicine, Singapore 1998
N Polunin T A Lim K P Tan

The availability of computed radiography has opened the possibility of using reduced dosage for radiographs in clinical settings and reducing the retake rate. A prospective controlled study was carried out over a period of four months comparing conventional X-rays and computed radiography. The aim was to assess if computed radiography at 50% normal dosage would result in films of adequate quali...

2011
Julio Cezar de Melo Castilho Roberto Hiroshi Matsui Miriam Yumi Matsui Mônica Fernandes Gomes

Objective – Technological improvement is usually followed by comparisons between conventional and new. Those who work with radiographic assessment, such as cephalometric analysis for orthodontic diagnosis, have been living a new challenging and learning phase since the introduction of digital images. It is possible to obtain reproducible and clear images with digital radiography, but radiograph...

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: :Journal of oral science 2010
Masoud Varshosaz Mohammad A Tavakoli Maryam Mostafavi Alireza A Baghban

To assess the diagnostic accuracy of cone beam computed tomography (CBCT) in comparison with conventional radiography for vertical root fractures, 50 of 100 teeth were subjected to vertical root fracture (VRF) and then placed in dry mandibles. 3D scans were obtained for all teeth, and conventional radiographs were used as control images. All the images were assessed by 6 observers, who determin...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید