نتایج جستجو برای: direct digital radiography rvg

تعداد نتایج: 738005  

Journal: :Radiation protection dosimetry 2005
H P Busch K Faulkner

The advent of digital imaging in radiology, combined with the explosive growth of technology, has dramatically improved imaging techniques. This has led to the expansion of diagnostic capabilities, both in terms of the number of procedures and their scope. Throughout the world, film/screen radiography systems are being rapidly replaced with digital systems. Many progressive medical institutions...

ژورنال: مجله دندانپزشکی 2019

Background and Aims: Accurate diagnosis of vertical root fracture (VRF) is a fundamental importance in endodontics. Because of poor prognosis of VRF, digital radiographs with two horizontal angles have limitations in VRF detection. Also, Gutta-percha can produce artifacts that impair CBCT scan accuracy. The aim of this study was to compare accuracy of CBCT and digital radiography system in vert...

Alieh Sadat Javadzadeh Haghighat, Fatemeh Shahsavari, Milad Malekshoar, Seiedeh Saeideh Mohtavipour, Seiedeh Tahereh Mohtavipour,

Introduction: Various systems for intraoral digital radiography have been available as an alternative to film–based radiography. In consideration of several advantages of digital radiography such as less patient absorbed dose, manipulation of im‌age quality and elimination of processing, it has been extensively used in different fields of denti‌stry in recent years. The purpose of this study wa...

Background and Objectives: Working length determination is one of the most important factors in successful root canal treatment; therefore, this study was carried out to compare conventional (E-speed) and digital (CMOS) radiographies in determining the working length of the root canals of mandibular molar teeth. Materials and Methods: In this ex-vivo study, 25 permanent mandibular double-roo...

Aims Chest radiography is the first choice for the investigation of cardiovascular and respiratory disease. Radiographer technologists are responsible for managing the radiation exposure to patients and providing adequate image quality according to the ALARA concept. The knowledge and experience of radiographers in performing chest radiography helps to improve the diagnosis of diseases. The aim...

A Tabibi F Falahzadeh H Modir Falah M tofangchiha SH Safarzadeh

Background & Aims: Conventional radiography is used for the diagnosis of problems such as dental caries and failure in root canal therapy. The diagnosis accuracy of conventional radiography is acceptable in the evaluation of anatomical and pathological structures. However, it seems that by using digital radiography we can obtain more information in this field. The aim of this study is to compar...

Journal: :The journal of contemporary dental practice 2010
Najmeh Anbiaee Anousheh Rashad Mohassel Mahrokh Imanimoghaddam Seyed Mostafa Moazzami

AIM The purpose of this laboratory research was to compare the accuracy of digital and conventional bitewing radiographs in the diagnosis of recurrent caries under class II amalgam restorations. METHODS AND MATERIALS This study involved 82 posterior intact teeth in which class II amalgam boxes were prepared. Carious lesions were simulated in half of the proximal boxes in the intersection betw...

Journal: :journal of dental materials and techniques 0
hossein hossein hoseini zarch department of oral and maxillofacial radiology, dental material research center, faculty of dentistry, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) adineh adineh javadian langaroodi department of oral and maxillofacial radiology, dental material research center, faculty of dentistry, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) mina mina shafagh motlagh department of pedodontics, faculty of dentistry, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences)

introduction: although proximal dental caries are very common, clinical examinations cannot detect them all. panoramic radiography has been widely used in dentistry for both diagnosis and screening. this study aimed to investigate and compare the efficacy of two digital panoramic radiography techniques in the diagnosis of proximal caries. methods: a total number of 60 patients referred to a den...

Journal: :journal of dentomaxillofacil radiology, pathology and surgery 0
seyedeh tahereh mohtavipour department of maxillofacial radiology, guilan university of medical sciences, rasht, iran shiva sadeghi department sciences research center, faculty of dentistry, guilan university of medical research, rasht, iran. seyedeh saeedeh mohtavipour department of pediatric dentistry, guilan university of medical sciences, rasht, iran. aliehsadat javadzadeh haghighat department of maxillofacial radiology, guilan university of medical sciences, rasht, iran maryam rezvani department of maxillofacial radiology, guilan university of medical sciences, rasht, iran. bahar mamoud khalesi department of maxillofacial radiology, guilan university of medical sciences, rasht, iran.

introdouction: canal length measurement is essential for proper endodontic treatment. any error or miscalculation in working length determination, particularly in curved canals, can result in complications during or after root canal therapy. digital radiography has enabled accurate measurement of curved canal length. in this study, we evaluated the accuracy of calibration of a complementary met...

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