Evaluating a novel fissure caries model using swept source optical coherence tomography

Xiaozhou Liu, Robert S. Jones

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The objective of this study was to determine the efficacy of Swept Source Optical Coherence Tomography (SS-OCT) imaging in assessing a novel fissure caries model. Samples were imaged by both near infrared based SS-OCT and high resolution x-ray tomography imaging to non-destructively quantify artificial lesions. The mean relative reflectivities of the demineralized fissures were at least 6 times higher than the corresponding sound fissures (p<0.02). Importantly, this study demonstrated that SS-OCT reflectivity images can be used to predict the depth of fissure demineralization. Despite correctly evaluating the depth, this work showed that the lesion width calculated from SS-OCT reflectivity images did not accurately predict the demineralized width. The relative reflectivity could not accurately determine the mineral density of the demineralized lesions. SS-OCT detected subsurface fissure demineralization and could be used to determine if the decay process was advancing toward the enamel-dentin junction.

Original languageEnglish (US)
Pages (from-to)906-912
Number of pages7
JournalDental Materials Journal
Volume32
Issue number6
DOIs
StatePublished - Dec 4 2013

Keywords

  • Dental caries
  • Imaging systems
  • Medical optics instrumentation
  • Optical coherence tomography

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