Assessing ex vivo dental biofilms and in vivo composite restorations using cross-polarization optical coherence tomography

R. Jones; C. Aparicio; R. Chityala; R. Chen; A. Fok; J. Rudney

doi:10.1117/12.914598

16 February 2012 Assessing ex vivo dental biofilms and in vivo composite restorations using cross-polarization optical coherence tomography

R. Jones, C. Aparicio, R. Chityala, R. Chen, A. Fok, J. Rudney

Author Affiliations +

Proceedings Volume 8208, Lasers in Dentistry XVIII; 82080A (2012) https://doi.org/10.1117/12.914598
Event: SPIE BiOS, 2012, San Francisco, California, United States

Abstract

A cross-polarization 1310-nm optical coherence tomography system (CP-OCT), using a beam splitter based design, was used to assess ex vivo growth of complex multi-species dental biofilms. These biofilm microcosms were derived from plaque samples along the interface of composite or amalgam restoration in children with a history of early childhood caries. This paper presents a method of measuring the mean biofilm height of mature biofilms using CP-OCT. For our in vivo application, the novel swept source based CP-OCT intraoral probe (Santec Co. Komaki, Japan) dimensions and system image acquisition speed (20 image frames/second) allowed imaging pediatric subjects as young as 4 years old. The subsurface enamel under the interface of composite resin restorations of pediatric subjects were imaged using CP-OCT. Cavitated secondary caries is clearly evident from sound resin composite restorations.

Citation Download Citation

R. Jones, C. Aparicio, R. Chityala, R. Chen, A. Fok, and J. Rudney "Assessing ex vivo dental biofilms and in vivo composite restorations using cross-polarization optical coherence tomography", Proc. SPIE 8208, Lasers in Dentistry XVIII, 82080A (16 February 2012); https://doi.org/10.1117/12.914598

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