نتایج جستجو برای: cone beam computed tomography cbct

تعداد نتایج: 398840  

ژورنال: مجله دندانپزشکی 2009
حسینی پویا, مهدی, دیوبند, محمدرضا, شکری, عباس, پنج‌نوش, مهرداد,

Background and Aim: The objective of this study was to measure and compare the tissue absorbed dose in thyroid gland, salivary glands, eye and skin in maxillofacial imaging with panoramic, conventional linear tomography, cone beam computed tomography (CBCT) and computed tomography (CT).Materials and Methods: Thermoluminescent dosimeters (TLD) were implanted in 14 sites of RANDO phantom to measu...

شریفی, ساناز, ورشوساز, مسعود,

Background: Paranasal sinus disease is one of the most common problems of patients that refer to ENT centers. Adding to clinical examination imaging plays an important role in diagnosis and treatment. Also the imaging of paranasal sinuses is necessary before surgery. Although computed tomography is the modality of choice for these areas, it has some disadvantages which the most important one is...

Journal: :journal of dental research, dental clinics, dental prospects 0
farzad esmaeili masume johari pezhman haddadi mehdi vatankhah

background and aims. at present, cone beam computed tomography (cbct) has become a substitute for computed tomography (ct) in dental procedures. the metallic materials used in dentistry can produce artifacts due to the beam hardening phenomenon. these artifacts decrease the quality of images. in the present study, the number of artifacts as a result of beam hardening in the images of dental imp...

2011
Muhammed Akif SÜMBÜLLÜ

The incidence of condylar fractures is high and the condylar fractures can be seen different types. Cone beam computed tomography (CBCT), conventional radiographic techniques such as orthopantomography (OPG) can be used in diagnosis of the fracture. CBCT is relatively a new imaging modality and uses commonly in dental implantology. In our study, it is aimed to present detailed the imaging of co...

Journal: :iranian endodontic journal 0
hengameh ashraf omid dianat reihaneh hajrezai payam paymanpour sina azadnia

a healthy female was referred to endodontic department. the referral letter from her dentist expressed that an emergency pulpotomy of tooth #27 had been carried out with probable perforation of the chamber floor which was due to the unusual anatomy of the chamber. cone-beam computed tomography (cbct) revealed that the tooth had two mesial and two distal canals. perforation site was repaired and...

Journal: :iranian endodontic journal 0
mohammad salarpour narges farhad mollashahi faculty of dentistry of medical sciences of zahedan university elnaz mousavi elahe salarpour

introduction : to achieve success in treatment, one cannot ignore the knowledge of pulp anatomy. mandibular premolars are considered to be the most difficult teeth for endodontic therapy due to high variability in their canal morphology. it is possible that a relation exists between the crown size and the number of extra canals in these teeth, so this in vitro study aims to investigate the rela...

2008
Ashok Balasundaram André Mol

Ashok Balasundaram: Cone beam Computed Tomography imaging of periodontal bone (Under the direction of Dr. André Mol) Cone beam computed tomography (CBCT) is a low-dose, low-cost three dimensional imaging modality used for several oral and maxillofacial applications. This project evaluated the accuracy of Cone-Beam CT imaging to assess periodontal alveolar bone. In Phase I, ground truth measurem...

Journal: :iranian endodontic journal 0
amir hosein kiarudi mohammad jafar eghbal yaser safi mohammad mehdi aghdasi mahta fazlyab

by producing undistorted three-dimensional images of the area under examination, cone-beam computed tomography (cbct) systems have met many of the limitations of conventional radiography. these systems produce images with small field of view at low radiation doses with adequate spatial resolution that are suitable for many applications in endodontics from diagnosis to treatment and follow-up. t...

Journal: :iranian endodontic journal 0
zahra sadat madani narges simdar ehsan moudi ali bijani

introduction: the aim of the present in vitro study was to evaluate the efficacy of d-race, protaper retreatment kit and hand h-files in removal of obturating materials (om) from the curved root canals using cone-beam computed tomography (cbct). materials and methods: sixty extracted molars were prepared and obturated. the samples were divided into three groups ( n =20). in each group the om wa...

Journal: :iranian endodontic journal 0
hadi mokhtari mahdi niknami aydin sohrabi ehsan habibivand hamid reza mokhtari zonouzi saeed rahimi

introduction: the aim of this in vitro study was to evaluate the transportation of mesiobuccal canals of mandibular first molars prepared with either biorace or mtwo rotary instruments or hand k-flexofile, by means of cone-beam computed tomography (cbct). methods and materials: forty-five mandibular molars were selected and randomly divided into three groups ( n =15). mesiobuccal roots of these...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید