Document Detail

The effects of illumination and focal distance on light-induced fluorescence images in vitro.
MedLine Citation:
PMID:  16352885     Owner:  NLM     Status:  MEDLINE    
When using quantitative light-induced fluorescence a number of factors can influence illumination level. The purpose of this study was to investigate, using a high-resolution camera and fibre-optic light source, the impact of illumination level and focal distance on common quantitative light-induced fluorescence outcomes. Twenty-four extracted teeth were examined using 6 illumination levels and 4 focal distances. Analysis was conducted using multiple linear regression models fitted to log DeltaQ, log DeltaF and log area with clustering of teeth and robust standard errors. Separate models were used for the different light and focal levels. The regression coefficients were significant for both DeltaQ and DeltaF but not area. Despite the significant regressions the actual effect was very small, and unlikely to confound clinical trial or practice results.
I A Pretty; P G Ellwood; R M Davies; H W Worthington; R P Ellwood
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Caries research     Volume:  40     ISSN:  0008-6568     ISO Abbreviation:  Caries Res.     Publication Date:  2006  
Date Detail:
Created Date:  2005-12-14     Completed Date:  2006-01-18     Revised Date:  2014-03-14    
Medline Journal Info:
Nlm Unique ID:  0103374     Medline TA:  Caries Res     Country:  Switzerland    
Other Details:
Languages:  eng     Pagination:  73-6     Citation Subset:  D; IM    
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MeSH Terms
Dental Caries Activity Tests*
Fiber Optic Technology
Linear Models
Luminescent Measurements / methods*
Photography, Dental / instrumentation*
Scattering, Radiation
Grant Support
DHCS/05/05/008//Department of Health

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