Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/3892
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Type: Journal article
Title: Diagnostic comparison of three groups of examiners using visual and laser fluorescence methods to detect occlusal caries in vitro
Author: Fung, L.
Smales, R.
Ngo, H.
Mount, G.
Citation: Australian Dental Journal, 2004; 49(2):67-71
Publisher: Australian Dental Assn Inc
Issue Date: 2004
ISSN: 0045-0421
1834-7819
Statement of
Responsibility: 
L Fung, R Smale, H Ngo and G Mount
Abstract: Background: To evaluate the accuracy of the DIAGNOdent laser device (DD) for detecting occlusal fissure caries when used by three groups of examiners. Methods: Three final-year dental students (S), three General Dental Practitioners (G), and three Academic Clinicians (A) individually examined the non-cavitated occlusal surfaces of 25 extracted permanent molars using visual inspection (VI) then DD assessments. The presence of caries was confirmed following tooth sectioning. A cut-off limit of 30 was used for the DD to avoid over-treatment in a low caries-risk situation. Results: For VI, individual examiner sensitivity (caries correctly diagnosed) ranged from 53 to 86 per cent, and specificity (sound teeth correctly diagnosed) ranged from 76 to 95 per cent, with low Kappa agreements. Group S achieved the highest sensitivity (80 per cent) and Groups G and A achieved the highest specificities (88 per cent). For DD, individual examiner sensitivity ranged from 19 to 77 per cent, and specificity from 71 to 97 per cent, with generally moderate Kappa agreements. Group A achieved the highest (67 per cent) and Group G the lowest (44 per cent) sensitivities, and Group G achieved the highest specificity (94 per cent). Conclusions: There were similar widely varying results for the two diagnostic methods and for the three groups of examiners. However, the relatively high sensitivities found with VI and specificities found with DD should avoid over-treatment in low caries-risk populations.
Keywords: DIAGNOdent; laser fluorescence; occlusal caries
Description: The document attached has been archived with permission from the Australian Dental Association. An external link to the publisher’s copy is included.
RMID: 0020040594
DOI: 10.1111/j.1834-7819.2004.tb00052.x
Published version: http://www.ada.org.au/App_CmsLib/Media/Lib/0610/M28485_v1_632972953081066250.pdf
Appears in Collections:Dentistry publications

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