Raman microspectroscopy/micro-optical coherence tomography approach for chairside diagnosis of periodontal diseases - A pilot study
Background: Our objective was to develop and test a combined Raman microspectroscopy (RMS) and micro-optical coherence tomography (μOCT) approach for chairside quantification of gingival collagen, DNA, epithelium and connective tissue. We hypothesized that a high-resolution RMS/μOCT can characterize healthy and inflamed periodontal tissues for diagnosis and disease activity monitoring. Methods: A prototype instrument was developed, tested ex-vivo on gingival specimens and optimized for in-vivo intraoral use. The primary outcome measures were the ratios of oral epithelium to connective tissue thickness (OE:CT) and the amount of DNA to collagen type I (DNA/Col), and the thickness of sulcular epithelium ...
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