Research Papers

Optical approach to the salivary pellicle

[+] Author Affiliations
Jae Ho Baek

Ulsan University Hospital, Department of Orthodontics, 290-3 Jeonha dong, Dong gu, Ulsan, 682-714, Korea and University of California, Irvine, Beckman Laser Institute, 1002 Health Sciences Road East, Irvine, California 92612

Tatiana Krasieva, Shuo Tang, Yehchan Ahn, Chang Soo Kim, Diana Vu, Zhongping Chen, Petra Wilder-Smith

University of California, Irvine, Beckman Laser Institute, 1002 Health Sciences Road East, Irvine, California 92612

J. Biomed. Opt. 14(4), 044001 (July 20, 2009). doi:10.1117/1.3158994
History: Received March 30, 2009; Accepted May 08, 2009; Published July 20, 2009
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The salivary pellicle plays an important role in oral physiology, yet noninvasive in situ characterization and mapping of this layer remains elusive. The goal of this study is to develop an optical approach for the real-time, noninvasive mapping and characterization of salivary pellicles using optical coherence tomography (OCT) and optical coherence microscopy (OCM). The long-term goals are to improve diagnostic capabilities in the oral cavity, gain a better understanding of physiological and pathological processes related to the oral hard tissues, and monitor treatment responses. A salivary pellicle is incubated on small enamel cubes using human whole saliva. OCT and OCM imaging occurs at 0, 10, 30, 60min, and 24h. For some imaging, spherical gold nanoparticles (15nm) are added to determine whether this would increase the optical signal from the pellicle. Multiphoton microscopy (MPM) provides the baseline information. In the saliva-incubated samples, a surface signal from the developing pellicle is visible in OCT images. Pellicle “islands” form, which increase in complexity over time until they merge to form a continuous layer over the enamel surface. Noninvasive, in situ time-based pellicle formation on the enamel surface is visualized and characterized using optical imaging.

Figures in this Article
© 2009 Society of Photo-Optical Instrumentation Engineers

Topics

Pellicles ; Teeth

Citation

Jae Ho Baek ; Tatiana Krasieva ; Shuo Tang ; Yehchan Ahn ; Chang Soo Kim, et al.
"Optical approach to the salivary pellicle", J. Biomed. Opt. 14(4), 044001 (July 20, 2009). ; http://dx.doi.org/10.1117/1.3158994


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