Differential reflectometry versus tactile sense detection of subgingival calculus in dentistry

Shakibaie, Fardad and Walsh, Laurence J. (2012) Differential reflectometry versus tactile sense detection of subgingival calculus in dentistry. Journal of Biomedical Optics, 17 10: 106017.1-106017.4. doi:10.1117/1.JBO.17.10.106017

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Author Shakibaie, Fardad
Walsh, Laurence J.
Title Differential reflectometry versus tactile sense detection of subgingival calculus in dentistry
Journal name Journal of Biomedical Optics   Check publisher's open access policy
ISSN 1083-3668
Publication date 2012-10-24
Sub-type Article (original research)
DOI 10.1117/1.JBO.17.10.106017
Open Access Status File (Publisher version)
Volume 17
Issue 10
Start page 106017.1
End page 106017.4
Total pages 4
Place of publication Bellingham, WA, United States
Publisher S P I E - International Society for Optical Engineering
Collection year 2013
Language eng
Abstract Detecting dental calculus is clinically challenging in dentistry. This study used typodonts with extracted premolar and molar teeth and simulated gingival tissue to compare the performance of differential reflectometry and periodontal probing. A total of 30 extracted teeth were set in an anatomical configuration in stone to create three typodonts. Clear polyvinyl siloxane impression material was placed to replicate the periodontal soft tissues. Pocket depths ranged from 10 to 15 mm. The three models were placed in a phantom head, and an experienced dentist assessed the presence of subgingival calculus first using the DetecTar (differential reflectometry) and then a periodontal probe. Scores from these two different methods were compared to the gold standard (direct examination of the root surface using 20× magnification) to determine the accuracy and reproducibility. Differential reflectometry was more accurate than tactile assessment (79% versus 60%), and its reproducibility was also higher (Cohen kappa 0.54 versus 0.39). Both methods performed better on single rooted premolar teeth than on multirooted teeth. These laboratory results indicate that differential reflectometry allows more accurate and reproducible detection of subgingival calculus than conventional probing, and supports its use for supplementing traditional periodontal examination methods in dental practice.
Keyword Detection
Differential reflectometry
Periodontal probe
Subgingival calculus
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online: 24 October 2012.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
School of Dentistry Publications
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Citation counts: TR Web of Science Citation Count  Cited 2 times in Thomson Reuters Web of Science Article | Citations
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Created: Fri, 04 Jan 2013, 14:42:43 EST by Professor Laurence Walsh on behalf of School of Dentistry