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- W2367203476 abstract "Objective To explore the new imaging technique of biological tissue--optical coherence tomography(OCT) for early diagnosis of dental caries. Methods A 2 mm × 3 mm experimental window in adamant slippery surfaces of permanent teeth was prepared, demineralized the enamel surface within the windows area to creat early stage of artificial caries mould, by aciding the window surface 0, 12, 24, 48, 72, 96, 120 hours with an pH 4.5 etching liquid in vitro. Detected the demineralized changes on the experimental window surface by a dental all-fiber-OCT(AF-OCT) system, which were new self developed and compared the test results with clinical digital photomicrography(DPM), scanning electron microscope(SEM) and polarimicroscopy(PMS) on the same experimental window of same teeth sample, checkouted the sensitivity and efficacy of AF-OCT for early quantitative detection of artificial caries in vitro. Results The AF-OCT system accurately detected enamel demineralization as early as in 12 hours aciding stage, the results obtained by SEM was earlier than that by DPM with similar finding; The demineralized depth presented positive correlation to the aciding hours. It was shown that quantitative detection data by OCT had high correlation to those by PMS. Conclusion The self-developed AF-OCT system could accurately detect early artificial dental caries within 12 hours without invasion and can be achieved detection and analysis. The determination data of demineralized depth by AF-OCT have shown a high degree of correlation with those by PMS." @default.
- W2367203476 created "2016-06-24" @default.
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- W2367203476 date "2009-01-01" @default.
- W2367203476 modified "2023-09-25" @default.
- W2367203476 title "Detection of early enamel caries with a new self-developed all-fiber-OCT system" @default.
- W2367203476 hasPublicationYear "2009" @default.
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