1. Cross-Polarization Optical Coherence Tomographic Assessment of In situ Simulated Erosive Tooth Wear

    Cross-Polarization Optical Coherence Tomographic Assessment of In situ Simulated Erosive Tooth Wear

    This clinical study tested cross-polarization optical coherence tomography (CP-OCT) monitoring of erosive tooth wear (ETW). Twenty participants completed a 14-day/arm, 3-arm crossover study simulating different ETW severities. Participants received two enamel specimens (per arm) and were randomized to: severe (s-ETW, lemon juice/pH:2.5/4.25%w/v citric acid), moderate (m-ETW, grapefruit juice/pH:3.5/1.03%w/v citric acid), and non-ETW (water). Enamel thickness was measured with CP-OCT (day(D) 0, 7, 14) and micro-computed tomography (μ-CT; D14). Enamel surface loss was determined with CP-OCT and optical profilometry (OP; D7, D14). CP-OCT showed higher ...

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