نتایج جستجو برای: cone beam computed tomography cbct

تعداد نتایج: 398840  

Journal: :iranian journal of radiology 0
yaser safi department of oral and maxillofacial radiology, school of dentistry, shahid beheshti university of medical sciences, tehran, iran mahkameh moshfeghi department of oral and maxillofacial radiology, school of dentistry, shahid beheshti university of medical sciences, tehran, iran sepideh rahimian department of oral and maxillofacial radiology, school of dentistry, shahid beheshti university of medical sciences, tehran, iran mahtab kheirkhahi department of oral and maxillofacial radiology, school of dentistry, semnan university of medical sciences, semnan, iran maryam eslami manouchehri department of oral and maxillofacial radiology, school of dentistry, golestan university of medical sciences, gorgan, iran; department of oral and maxillofacial radiology, school of dentistry, golestan university of medical sciences, gorgan, iran

conclusion this study has highlighted the anatomical variations of npc regarding its dimension, location and morphological appearance. cylindrical was the most common shape followed by funnel-shape, hourglass, and spindle, which were the other canal shapes with less frequency, respectively. the results suggest significant relationship between npc, and gender and dental status. the influence of ...

Journal: :journal of dentistry, tehran university of medical sciences 0
hamed ebrahimnejad dds, msc, oral and maxillofacial radiologist, department of oral and maxillofacial radiology, school of dentistry, mashhad university of medical sciences, mashhad, iran. seyed hosein hoseini zarch associate professor, department of oral and maxillofacial radiology, dental materials research center, school of dentistry, mashhad university of medical sciences, mashhad, iran. adineh javadian langaroodi assistant professor, department of oral and maxillofacial radiology, maxillofacial diseases research center, school of dentistry, mashhad university of medical sciences, mashhad, iran.

objectives: new digital two-dimensional imaging systems are considered as an easily accessible modality for sinonasal evaluation. the aim of this study was to assess the diagnostic efficacy of digital waters’ and caldwell’s radiographic views for evaluation of sinonasal area. materials and methods: a total of 273 patients fulfilling the inclusion criteria were enrolled in this descriptive-analy...

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
mahkameh moshfeghi dept. of oral & maxillofacial radiology, dental school, shahid beheshti university of medical sciences, tehran, iran. mohammad amintavakoli dept. of oral & maxillofacial radiology, dental school, shahid beheshti university of medical sciences, tehran, iran dara ghaznavi private practice, te . hran aisan ghaznavi dept. of oral and maxillofacial radiology, school of dentistry, urmia university of medical sciences, urmia, iran

objective: cone beam computed tomography (cbct) is applied for the imaging of the maxillofacial and dental structures, particularly for surgical treatments and dental implants. the aim of this study was to assess the effect of slice thickness on the accuracy of cbct linear measurements. methods: in this diagnostic accuracy study, forty-two titanium pins with the same dimensions were inserted in...

Journal: :journal of dental materials and techniques 0
mahrokh imanimoghaddam oral and maxillofacial disease research center, department of oral and maxillofacial radiology, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) azam sadat madani dental research center, department of prosthodontics, faulty of dentistry, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) mohammad reza talebzadeh private oral and maxillofacial radiologist, hakim hospital of neyshabur, neyshabur, iran ali bagherpour dental research center, department of oral and maxillofacial radiology, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) mona alimohammadi postgraduate student of oral and maxillofacial radiology, mashhad university of medical sciences, mashhad, iranmashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences)

abstract introduction: temporomandibular joint disorders (tmd) are the most common disorders of the jaw, and despite their clinical importance, they are not completely understood. this study was aimed to evaluate the changes of temporomandibular joint (tmj) on cone beam computed tomography (cbct) images in disc displacement vs. osteoarthritis of the tmj. methods: in this study, 45 patients, inc...

Journal: :journal of periodontology and implant dentistry 0
fateme salemi fazele atarbashi moghadam zahra shakibai maryam farhadian

background and aims. because of increasing concerns about surgeries in the anterior maxilla, including implant placement, it is necessary to examine the morphology of the nasopalatine canal and its surrounding bones. this study aimed to analyze the shape and position of the nasopalatine canal and incisive foramen using cone-beam computed tomography (cbct). materials and methods. cbct images of ...

Journal: :Journal of Thoracic Disease 2023

Background: Shape sensing robotic-assisted bronchoscopy (ssRAB) combined with radial endobronchial ultrasound (r-EBUS) and cone beam computed tomography (CBCT) is a newer diagnostic modality for the evaluation of pulmonary lesions. There limited data describing radiation dose CBCT ssRAB. The purpose this study was to describe technical factors associated use ssRAB biopsy

2015
George Puthenpurayil John Tatu Elenjickal Joy Justin Mathew Vinod R. B. Kumar

Cone beam computed tomography (CBCT, also referred to as C-arm computed tomography [CT], cone beam volume CT, or flat panel CT) is a medical imaging technique of X-ray CT where the X-rays are divergent, forming a cone.[1] CBCT systems have been designed for imaging hard tissues of the maxillofacial region. CBCT is capable of providing sub-millimeter resolution in images of high diagnostic quali...

2013
Navid Saberi

CBCT versus conventional CT Cone beam computed tomography (CBCT), which is also referred to as cone beam volumetric imaging (CBVI) and cone beam volumetric tomography (CBVT), is an extraoral radiographic method of producing three-dimensional digital radiographic information (Patel et al, 2009a; Patel, 2009; Miles, 2008; McNamara, Kapila, 2006; Horner, Drage, Brettle, 2008; Patel et al, 2007). I...

Journal: :avicenna journal of dental research 0
mahkameh moshfeghi department of oral and maxillofacial radiology, dental faculty, shahid beheshti university of medical sciences, tehran, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) shadi hamidiaval department of oral and maxillofacial radiology, dental faculty, lorestan university of medical sciences, khorramabad, ir iran; department of oral and maxillofacial radiology, dental faculty, lorestan university of medical sciences, khorramabad, ir iran. tel: +98-2188077784, fax: +98-2122371485سازمان اصلی تایید شده: دانشگاه علوم پزشکی لرستان (lorestan university of medical sciences) mohsen pakghalb faculty of technical and engineering, science and research branch, islamic azad university, tehran, ir iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) alireza akbarzadeh baghban department of basic sciences, school of rehabilitation, shahid beheshti university of medical sciences, tehran, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences)

conclusions the type of materials can influence the obtained gsv. different materials cause various amounts of artifacts due to differences in density and atomic number. results according to the mean gsv of the five different materials, the majority of artifacts produced were as follows: tempbond > zoe > mta > gi (chemfil dentsply) > gi (gc, fuji ιx). materials and methods samples of five cemen...

Journal: :iranian endodontic journal 0
hadi mokhtari mahdi niknami vahid zand

root canal anatomy diversity and aberrations are common especially in permanent dentition. a thorough understanding of the basic root canal anatomy and its diversities are necessary for successful endodontic treatment. mandibular second premolars are usually single-rooted and have one root canal. incidence of three separate root canals in this tooth is quite rare and taurodontism with three sep...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید