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Photoacoustic Ultrasound Could Measure Periodontal Health

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Researchers from University of California, San Diego used photoacoustic (optoacoustic) imaging with a contrast agent to measure pocket depths in swine models. The measurements were compared to those taken with a periodontal probe. Results showed that the photoacoustic imaging approach offered 0.01-mm precision and could cover the entire pocket, compared to the probe-based approach, which was limited in the number of sites it could cover. The gingival thickness could also be precisely measured using data obtained from the ultrasound mode. The values gathered with the ultrasound...Read full article

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