Laser fluorescence detection of subgingival calculus using the DIAGNOdent Classic versus periodontal probing

Shakibaie, Fardad and Walsh, Laurence J. (2016) Laser fluorescence detection of subgingival calculus using the DIAGNOdent Classic versus periodontal probing. Lasers in Medical Science, 31 8: 1621-1626. doi:10.1007/s10103-016-2027-3


Author Shakibaie, Fardad
Walsh, Laurence J.
Title Laser fluorescence detection of subgingival calculus using the DIAGNOdent Classic versus periodontal probing
Journal name Lasers in Medical Science   Check publisher's open access policy
ISSN 1435-604X
0268-8921
Publication date 2016-11-01
Year available 2016
Sub-type Article (original research)
DOI 10.1007/s10103-016-2027-3
Open Access Status Not yet assessed
Volume 31
Issue 8
Start page 1621
End page 1626
Total pages 6
Place of publication London, United Kingdom
Publisher Springer U K
Language eng
Abstract Deposits of subgingival calculus on the root surfaces of the teeth are difficult to detect with conventional methods such as tactile probing. This study compared the performance of a 655-nm wavelength laser fluorescence (LF) system (DIAGNOdent Classic with a periodontal tip) with conventional periodontal probing under defined conditions in a laboratory simulation, using an experienced examiner. Models with a total of 30 extracted teeth with varying levels of subgingival deposits scattered on their root surfaces were prepared, and silicone impression material applied to replicate periodontal soft tissues. The models were located in a phantom head, and the presence of subgingival calculus recorded at 8 points per tooth (240 sites), then the entire scoring process repeated after 1 and 2 weeks. The optimal LF threshold was determined as a fluorescence score of 7 using Receiver Operating Characteristic curves. When compared the gold standard of direct microscopic examination of roots, LF was more sensitive, specific, and accurate than tactile probing (68.3 vs. 51.7 %; 92.1 vs. 67.8; and 80.2 vs. 59.8 %, respectively), and was also more reproducible (Cohen kappa 0.60 vs. 0.39). These data support the concept of using LF as an adjunct to clinical diagnosis.
Keyword Detection
DIAGNOdent Classic
Laser fluorescence
Periodontal tip
Subgingival calculus
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
School of Dentistry Publications
 
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