An imaging-based approach to the evaluation of xerostomia

Authors

  • Steven Duong BS,

    1. Beckman Laser Institute, University of California, Irvine, California 92612
    2. University of California at Irvine, Irvine, California 92612
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  • Joseph Youssef BS,

    1. Beckman Laser Institute, University of California, Irvine, California 92612
    2. University of California at Irvine, Irvine, California 92612
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  • Paloma Pimenta PhD,

    1. Colgate-Palmolive Technology Center, 909 River Rd., Piscataway, New Jersey 08854
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  • Holly Aguigam BS,

    1. Beckman Laser Institute, University of California, Irvine, California 92612
    2. University of California at Irvine, Irvine, California 92612
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  • Jun Zhang PhD,

    1. Beckman Laser Institute, University of California, Irvine, California 92612
    2. University of California at Irvine, Irvine, California 92612
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  • Alden Calantog,

    1. Beckman Laser Institute, University of California, Irvine, California 92612
    2. University of California at Irvine, Irvine, California 92612
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  • Shira Pilch PhD,

    1. Colgate-Palmolive Technology Center, 909 River Rd., Piscataway, New Jersey 08854
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  • James G. Masters PhD,

    1. Colgate-Palmolive Technology Center, 909 River Rd., Piscataway, New Jersey 08854
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  • Petra Wilder-Smith DDS, PhD

    Corresponding author
    1. Beckman Laser Institute, University of California, Irvine, California 92612
    2. University of California at Irvine, Irvine, California 92612
    • Associate Professor and Director of Dentistry, Beckman Laser Institute, University of California at Irvine, 1002 Health Sciences Rd East, Irvine, CA 92612.
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  • Conflict of Interest Disclosures: All authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest and none were reported.

  • Author's contribution: S.D. and J.Y.: imaging, data extraction; P.P.: study design, data interpretation, manuscript preparation; H.A., A.C.: imaging, data extraction, manuscript preparation; J.Z.: imaging, data extraction, and interpretation; S.P. and J.G.M.: study design, data interpretation and analysis, manuscript preparation; P.W.S.: study design and oversight, imaging, clinical examinations, data interpretation, manuscript preparation.

Abstract

Background and Objective

Goal was to evaluate the potential of in vivo optical coherence tomography (OCT) imaging to determine the response of patients with xerostomia to a dry mouth toothpaste versus fluoride toothpaste placebo.

Study Design/Materials and Methods

Ten subjects with xerostomia participated in this double-blind, crossover, placebo-controlled study. After examination and OCT imaging, subjects used the first product for 15 days, followed by a 7-day washout period, and then they used the second product for 15 days. Data were acquired at 5-day intervals, also before and after the washout.

Results

Visual examination and tongue blade adhesion test did not reflect response to the product. Two imaging-based markers were identified: (i) In OCT images, epithelial thickness increased significantly (P < 0.05) after use of the dry mouth toothpaste, but did not change significantly (P > 0.05) after the use of a fluoride toothpaste and (2) Optical backscattering data showed progressive characteristic changes from baseline with use of the active product.

Conclusions

In this pilot study using in vivo OCT imaging, it was possible to detect and measure oral epithelial response to the dry mouth product versus placebo in patients with xerostomia.

Clinical Implications

This approach may permit site-specific assessment of xerostomia, individualized treatment planning and monitoring, and sequential mucosal mapping in patients with dry mouth. Lasers Surg. Med. 44: 482–489, 2012. © Wiley Periodicals, Inc.

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