نتایج جستجو برای: direct digital subtraction radiography

تعداد نتایج: 746259  

Journal: :Pediatric dentistry 2000
K K Uprichard B J Potter C M Russell T E Schafer S Adair R N Weller

PURPOSE The aim of this study was to compare the performance of direct digital radiography and traditional dental radiography for the detection of proximal surface dental caries in the mixed dentition. METHODS 15 quadrants of extracted teeth, arranged from the primary canine to permanent first molar, were imaged using direct digital (Schick Technologies, Long Island City, NY, USA) and convent...

Journal: :journal of dental research, dental clinics, dental prospects 0
maryam zangooei booshehry abdolrahim davari fatemeh ezoddini ardakani mohammad reza rashidi nejad

background and aims. the aim of the present study was to compare the effect of application of an image processing mode of a colorizer on the efficacy of the detection of interproximal carious lesions viewed in direct digital radiography. materials and methods. a total of 102 proximal surfaces of extracted human premolars on direct digital images were evaluated by three observers with and withou...

Journal: :anesthesiology and pain medicine 0
sun kyung park department of anesthesiology and pain medicine, jeju national university hospital, school of medicine, jeju national university, jeju, korea yun suk choi department of anesthesiology and pain medicine, jeju national university hospital, school of medicine, jeju national university, jeju, korea; department of anesthesiology and pain medicine, jeju national university hospital, school of medicine, jeju national university, p. o. box: 690-716, jeju, korea. tel: +82-647172026, fax: +82-647172042

conclusions the advantages of dsa in fluoroscopy-guided transforaminal epidural block and nerve block are identification of the degree of appropriate contrast flow (epidural and nerve root sleeve) and the intravascular administration without overlapping radiodense structures. introduction most pain physicians know that fluoroscopy might improve the safety, accuracy, and efficacy of nerve block;...

ژورنال: مجله دندانپزشکی 2011
فتوحی, اکبر, نجات, سحرناز, گودرزی‌پور, داریوش,

Background and Aims: Conventional radiological equipments in our country are going to be converted to digital system using computed radiology (CR) technology. If we know the accuracy of digital panoramic radiography for detection of small defects in tooth, it will be useful in cases with difficulty for taking the intraoral radiographs. The aim of this study was to evaluate sensitivity and speci...

Journal: :مجله تحقیق در علوم دندانپزشکی و فک و دهان 0
dehghani m montazer lotf elahi h moeini m bardal r

abstract background and aim: cone beam computed tomography (cbct) produces high-quality data in periodontal diagnosis and treatment planning. the aim of this study was to compare the accuracy of cbct with intraoral digital and conventional radiography in the measurement of periodontal bone defects.  methods and materials: in this diagnostic research, two hundred and eighteen artificial osseous ...

Journal: :مجله تحقیق در علوم دندانپزشکی و فک و دهان 0
mehralizade s nemati anaraki s sakhdari s miraba s amiri siavashani m bayat s

abstract background and aim: considering the importance of detection of secondary caries, the adverse consequences of false positive and false negative diagnoses and the gap of information in the diagnostic efficacy of digital sensors in detection of secondary caries, this in vitro study sought to compare the diagnostic efficacy of two different resolutions of radiographs obtained by photostimu...

2012
Rahele Kafieh Mahdi Shahamoradi Ehsan Hekmatian Mehrdad Foroohandeh Mostafa Emamidoost

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. Five patients with previous panoramic images were selected to undergo the propos...

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