نتایج جستجو برای: dental x

تعداد نتایج: 771194  

2016
Ute Ludwig Anne-Katrin Eisenbeiss Christian Scheifele Katja Nelson Michael Bock Jürgen Hennig Dominik von Elverfeldt Olga Herdt Tabea Flügge Jan-Bernd Hövener

Currently, the gold standard for dental imaging is projection radiography or cone-beam computed tomography (CBCT). These methods are fast and cost-efficient, but exhibit poor soft tissue contrast and expose the patient to ionizing radiation (X-rays). The need for an alternative imaging modality e.g. for soft tissue management has stimulated a rising interest in dental magnetic resonance imaging...

2017
Y. Choi E. Jeong H. Oh K. Kim Y. Jung J. Jeong Y. Cho K. Lee

The purpose of this study was to evaluate the feasibility of dental panoramic radiography for dental arch evaluation in small animals. The dental arches of four Beagles, one Shih Tzu dog, and three Korean shorthaired cats were radiographed using human panoramic X-rays. All animals were under general anaesthesia during the examination. The animals’ heads were placed horizontal to the panoramic d...

2012
Elizabeth B. Claus Melissa L. Bondy Joellen M. Schildkraut

BACKGROUND: Ionizing radiation is a consistently identified and potentially modifiable risk factor for meningioma, which is the most frequently reported primary brain tumor in the United States. The objective of this study was to examine the association between dental x-rays—the most common artificial source of ionizing radiation—and the risk of intracranial meningioma. METHODS: This population...

Journal: :Cancer 2012
Timothy J Jorgensen

BACKGROUND Ionizing radiation is a consistently identified and potentially modifiable risk factor for meningioma, which is the most frequently reported primary brain tumor in the United States. The objective of this study was to examine the association between dental x-rays-the most common artificial source of ionizing radiation-and the risk of intracranial meningioma. METHODS This population...

Journal: :Journal of Korean Acedemy of Dental Technology 2013

2009
D. Idiyatullin C. Corum S. Moeller H. S. Prasad M. Garwood D. R. Nixdorf

D. Idiyatullin, C. Corum, S. Moeller, H. S. Prasad, M. Garwood, and D. R. Nixdorf CMRR, University of Minnesota, Minneapolis, MN, United States, Division of Oral Pathology in the Department of Diagnostic & Biological Sciences, University of Minnesota, Minneapolis, MN, United States, Division of TMD & Orofacial Pain and Department of Neurology, University of Minnesota, Minneapolis, MN, United St...

Journal: :Annals of agricultural and environmental medicine : AAEM 2008
Jolanta Szymańska Jacek Dutkiewicz

Bacteriological air sampling was conducted at 25 dental units during restorative treatment sessions before and after disinfection of dental unit waterlines (DUWL) with hydrogen peroxide. Air samples for determining the concentration and species composition of aerobic and facultatively anaerobic bacteria were collected with the portable Reuter Centrifugal Sampler (RCS Plus) in the dental operati...

Journal: :Public health 2007
M Petju A Suteerayongprasert R Thongpud K Hassiri

OBJECTIVES To determine the usefulness of dental records for victim identification following the Indian Ocean tsunami disaster in Thailand, and to evaluate the dental identification system in Thailand, the homeland of a large number of the victims. STUDY DESIGN A descriptive study conducted at the Thai Tsunami Repatriation Centre in Phangnga Province one year after the tsunami hit Thailand on...

2007
Thomas Lehmann Walter Schmitt Harald Horn Walter Hillen

In dental implantology more than one hundred enossal implant systems are in use. Once embedded, the dental X{ray examination is the most important tool for determing implants' producer, name, and type. In this paper, we present a system for automatical detection and identiication of dental xtures in intraoral X rays (IDEFIX) combining common direct digital image acquisition techniques with spec...

Journal: :Journal of biomedical optics 2005
L S A de Melo R E de Araujo A Z Freitas D Zezell N D Vieira J Girkin A Hall M T Carvalho A S L Gomes

Evaluation of molar dental restorations on enamel is performed using optical coherence tomography (OCT) with 10 microm resolution. Images of approximately 50 microm failure gaps in the restorations are demonstrated and the OCT images are compared with x-ray and optical microscopy pictures. The results demonstrate the potential of the technique for clinical evaluation of dental restorations.

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