Program including abstracts as pdf available here

P 61
Title
COMPARISON OF D AND F SPEED FILMS IN THE DETECTION OF PROXIMAL CARIES
Authors
A. JAVADzADEH 1 , S.T. MOHTAVIPOuR 2 , F. SHAAHSAVARI 3 , M. DAVOuDI 4
Affiliations
1 Guilan dentistry faculty, Rasht, IRAN
Body
objective: The use of fast films in one of the major factors contributing to dose reduction.
However, the diagnostic ability of fast film must be determined before current use of the films.
The purpose of this study was to compare the performance of D and F speed films in the diagnosis
of proximal caries.
Methods: Eighty proximal surfaces in forty extracted unrestored premolars were radiographed
under standardized conditions using D- and F-speed flowdental intraoral films.True caries
diagnosis was based on histological assessment of the surfaces after sectioning the teeth.
Two observer read the radiographs using a four-point scale to record their diagnosis. Observer
responses were evaluated using ROC analysis and areas under the ROC Curves(Az) was assessed
by pairwise comparison of ROC Curve.
Results: D speed films had a mean Az of 0.934 and F speed 0.920. These differences were not
statistically significant (P=0.548)Difference between observers were also not statistically significant.Conclusion
: The performance of the new F-Speed films was not statistically different
from D Speed for caries detection.This films shows the ability of reducing patient dose while
maintaining diagnostic quality.
Keywords
dental caries,diagnosis,x-ray film
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