Research Papers: Imaging

Differential reflectometry versus tactile sense detection of subgingival calculus in dentistry

[+] Author Affiliations
Fardad Shakibaie, Laurence J. Walsh

University of Queensland, School of Dentistry, 200 Turbot Street, Brisbane QLD 4000, Australia

J. Biomed. Opt. 17(10), 106017 (Oct 24, 2012). doi:10.1117/1.JBO.17.10.106017
History: Received May 22, 2012; Revised September 6, 2012; Accepted September 21, 2012
Text Size: A A A

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.

© 2012 Society of Photo-Optical Instrumentation Engineers

Citation

Fardad Shakibaie and Laurence J. Walsh
"Differential reflectometry versus tactile sense detection of subgingival calculus in dentistry", J. Biomed. Opt. 17(10), 106017 (Oct 24, 2012). ; http://dx.doi.org/10.1117/1.JBO.17.10.106017


Figures

Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

PubMed Articles
Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.