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  • Title: Calcium pre-rinse greatly increases overnight salivary fluoride after a 228 ppm fluoride rinse.
    Author: Vogel GL, Chow LC, Carey CM.
    Journal: Caries Res; 2008; 42(5):401-4. PubMed ID: 18781069.
    Abstract:
    BACKGROUND: Large increases in salivary fluoride were reported 1 h after a calcium pre-rinse/NaF rinse. AIMS: This study examined the persistence of these increases. METHODS: 12 subjects rinsed in the evening with water, with a 228 microg/g (ppm) F rinse or with 150 mmol/l calcium lactate followed by a 228 microg/g F rinse. In a second experiment these same patients rinsed with a 912 microg/g F rinse. Saliva samples were obtained the morning after rinsing, centrifuged and the supernatants analyzed. RESULTS: The Ca pre-rinse/228 microg/g F rinse induced an increase in overnight salivary F over the 912 microg/g F rinse (approximately 2.5 times) and a statistically significant increase over the 228 mug/g F rinse (approximately 5.5 times). CONCLUSIONS: The results suggest that a Ca pretreatment may increase the cariostatic effect of topical F agents.
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