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  • Title: Randomised in situ trial on the effect of milk and CPP-ACP on dental erosion.
    Author: Wiegand A, Attin T.
    Journal: J Dent; 2014 Sep; 42(9):1210-5. PubMed ID: 25038509.
    Abstract:
    OBJECTIVES: This randomised in situ study aimed to analyse the effect of milk (with or without 5ppm F) and CPP-ACP pastes (with or without 900ppm F) on dental erosion. METHODS: The study was a seven phase (5 days each) crossover design involving 15 participants wearing intraoral appliances with enamel and dentine specimens. Specimens were extraorally eroded (erosive soft drink, 6×90s/day) and brushed (2×30s/day, 2N) using a non-fluoridated toothpaste (negative control). The test products were milk, milk+5ppm F (twice daily, each 100ml/2min), CPP-ACP paste, CPP-ACP paste+900ppm F (3min/day) or a SnCl2/AmF/NaF mouthrinse (positive control, 30s/day), which were applied immediately after erosion with the appliances in the oral cavity. In an additional group, a fluoridated toothpaste was used without any additional test product. Tissue loss was determined profilometrically after 5 days and statistically analysed by linear mixed models methodologies (p<0.05). RESULTS: Compared with the negative control (non-fluoridated toothpaste only, enamel: 2.2±1.3μm; dentine: 3.8±2.2μm), enamel and dentine loss was significantly reduced by the use of fluoridated toothpaste (enamel: 1.1±1.0μm; dentine: 2.4±1.7μm) and the SnCl2/AmF/NaF mouthrinse (1.5±1.5μm; dentine: 1.8±1.9μm). CONCLUSIONS: Milk and CPP-ACP were not effective in reducing enamel and dentine loss significantly, independently of the presence of fluoride. CLINICAL SIGNIFICANCE: Enamel and dentine erosion were significantly reduced by the use of a fluoridated toothpaste or a SnCl2/AmF/NaF mouthrinse, but not by milk or CPP-ACP under the conditions of the present study. CLINICAL TRIALS REGISTRATION: NCT01566357.
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