نتایج جستجو برای: cbct cone

تعداد نتایج: 43079  

2017
Alexander Gröbe Jan Semmusch Maximilian Schöllchen Henning Hanken Michael Hahn Wolfgang Eichhorn Gerhard Schön Ole Jung Jamal M Stein Aline Reitmeier Max Heiland Ralf Smeets Clarissa Precht

PURPOSE The aim of this animal study was the determination of accuracy of bone measurements in CBCT (cone-beam computed tomography) in close proximity to titanium implants. MATERIAL AND METHODS Titanium implants were inserted in eight Göttingen minipigs. 60 implants were evaluated histologically in ground section specimen and radiologically in CBCT in regard to thickness of the buccal bone. W...

Journal: :dental research journal 0
shoaleh shahidi nahal kazerooni zadeh farahnaz sharafeddin shahriar shahab ehsan bahrampour shahram hamedani

background: this study was aimed to compare the diagnostic accuracy and feasibility of cone beam computed tomography (cbct) with phosphor storage plate (psp) in detection of simulated occlusal secondary caries. materials and methods: in this in vitro descriptive-comparative study, a total of 80 slots of class i cavities were prepared on 80 extracted human premolars. then, 40 teeth were randomly...

Journal: :Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons 2009
Olivier J C van Vlijmen Stefaan J Bergé Gwen R J Swennen Ewald M Bronkhorst Christos Katsaros Anne M Kuijpers-Jagtman

PURPOSE We evaluated whether measurements on conventional cephalometric radiographs are comparable to measurements on cone-beam computed tomography (CBCT)-constructed cephalometric radiographs taken from human skulls. MATERIALS AND METHODS The CBCT scans and conventional cephalometric radiographs were made using 40 dry skulls. With I-Cat Vision software (Imaging Sciences International, Inc, H...

2013
Hyeon-Shik Hwang Kyung-Min Lee Gi-Soo Uhm Jin-Hyoung Cho James A. McNamara

OBJECTIVE The purpose of this study was to evaluate the effectiveness of the use of Reference Ear Plug (REP) during cone-beam computed tomography (CBCT) scan for the generation of lateral cephalograms from CBCT scan data. METHODS Two CBCT scans were obtained from 33 adults. One CBCT scan was acquired using conventional methods, and the other scan was acquired with the use of REP. Virtual late...

2010
Chris Beltran Atmaram S. Pai Panandiker Matthew J. Krasin Thomas E. Merchant

The purpose was to quantify the setup margin for pediatric patients with neuro-blastoma using cone beam CT imaging (CBCT) and ultrasound localization. Ten patients, with a median age of 4.3 years (1.8 to 7.9) underwent daily pretreatment localization CBCT and every other day post-treatment CBCT to calculate interfractional and intrafraction movement. Localization was based on CBCT to treatment ...

2013
Prashant P. Jaju Mayuri Jain Ajita Singh Akanksha Gupta Rishi Raj

Cone beam computed tomography (CBCT) is the modern third dimension applied in the field of oral maxillofacial region. With lower radiation dose compared to conventional CT, its applications in dentistry has increased tremendously. Artefacts can seriously degrade the quality of computed tomographic (CBCT) images, sometimes to the point of making them diagnostically unusable. To optimize image qu...

Journal: :Indian journal of dental research : official publication of Indian Society for Dental Research 2015
Anil Munavalli Sharnappa Kambale Siddhesh Bandekar Nishant Ajgaonkar

Nonsurgical endodontic therapy of a right maxillary first molar with three roots and seven root canals. This unusual morphology was diagnosed using a dental operating microscope (DOM) and confirmed with the help of cone-beam computed tomography (CBCT) images. CBCT axial images showed that both the palatal and distobuccal root have a Vertucci type II canal pattern, whereas the mesiobuccal root s...

2015
Seda Aydemir Dilek Helvacioglu-Yigit Alper Sinanoglu Emre Ozel

The purpose of this report is to present a rare case of a maxillary lateral incisor exhibiting two separate root canals confirmed by cone-beam computed tomography (CBCT). A 65-year-old female patient with an esthetic complaint regarding her maxillary left lateral incisor was referred to our clinic. During a radiographical examination, an endodontically treated root canal and an extra root canal...

Journal: :Journal of clinical and diagnostic research : JCDR 2015
Shilpa Warhekar Sandesh Nagarajappa Prahlad L Dasar Ashish M Warhekar Ajay Parihar Tushar Phulambrikar Bhuvnesh Airen Deepika Jain

INTRODUCTION Cone beam computed tomography is a new diagnostic innovation to dental imaging. Despite the use of CBCT in oral and maxillofacial imaging, reports on its use either by individual practitioners or referral patterns to CBCT centers is lacking. Hence, a study was conducted to determine incidental findings on CBCT and reasons for referral by dental practitioners in Indore city. MATER...

2011

Introduction: Cone beam computer tomography (CBCT) suffers inferior image quality due to scatter and other problems. We are developing a novel tetrahedron beam computed tomography (TBCT) imaging system which consists of a linear scan x-ray source and a linear x-ray detector array. TBCT system avoids the inherent problems of CBCT, thereby can significantly improve the quality of online images in...

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