Multimodal imaging system for dental caries detection

Rongguang Liang, Victor Wong, Michael Marcus, Peter Burns, Paul McLaughlin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Scopus citations


Dental caries is a disease in which minerals of the tooth are dissolved by surrounding bacterial plaques. A caries process present for some time may result in a caries lesion. However, if it is detected early enough, the dentist and dental professionals can implement measures to reverse and control caries. Several optical, nonionized methods have been investigated and used to detect dental caries in early stages. However, there is not a method that can singly detect the caries process with both high sensitivity and high specificity. In this paper, we present a multimodal imaging system that combines visible reflectance, fluorescence, and Optical Coherence Tomography (OCT) imaging. This imaging system is designed to obtain one or more two-dimensional images of the tooth (reflectance and fluorescence images) and a three-dimensional OCT image providing depth and size information of the caries. The combination of two- and three-dimensional images of the tooth has the potential for highly sensitive and specific detection of dental caries.

Original languageEnglish (US)
Title of host publicationLasers in Dentistry XIII
StatePublished - 2007
EventLasers in Dentistry XIII - San Jose, CA, United States
Duration: Jan 21 2007Jan 22 2007

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
ISSN (Print)1605-7422


OtherLasers in Dentistry XIII
Country/TerritoryUnited States
CitySan Jose, CA


  • Dental caries
  • Fluorescence
  • Multimodal imaging
  • Optical coherence tomography
  • Reflectance

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Biomaterials
  • Radiology Nuclear Medicine and imaging


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