Linked Life Data

15607446

Source:http://linkedlifedata.com/resource/pubmed/id/15607446

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2004-12-20
pubmed:abstractText
Low-frequency EPR has the potential advantage of making accurate and sensitive measurements of absorbed radiation dose in teeth in situ. We report here on measurements within the human mouth in volunteers using 1200 MHz EPR, with an irradiated tooth in a special holder. We obtained a signal/noise ratio within 50% of that seen when the same sample was measured extraorally. The intraoral signal/noise can be improved and can be reduced further with optimization of conditions and use of more specifically designed and optimized resonators that fit within the mouth, probing 1-4 teeth, and can make the measurements in molars or incisors. The presence of amalgam fillings did not significantly impact the accuracy of measurements in those teeth or in adjacent teeth. These initial results make us optimistic that intra-oral measurements of the teeth will be feasible for accurate determination of exposures over the whole range in which acute clinical effects are possible.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0969-8043
pubmed:author
pubmed:issnType
Print
pubmed:volume
62
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
187-90
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
In vivo measurements of EPR signals in whole human teeth.
pubmed:affiliation
Department of Radiology, Dartmouth Medical School, 702 Vail, Hanover, NH 03755, USA.
pubmed:publicationType
Journal Article, Clinical Trial, Comparative Study, In Vitro, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't