The results showed that coffee most consumed was roasted coffee, and the frequency on an average was about three cups per day, for an average period of 35 years. The Decayed/Missing/Filled Surface (DMFS) scores varied from 2.9, in subjects who drank black coffee, to 5.5 in subjects who consumed coffee together with sweeteners and creaming agents. The DMFS score was 3.4 in subjects who consumed coffee together with milk but no sugar. The DMFS score of the control subjects was 4, indicating that coffee if consumed alone had anticaries action, but in the presence of additives the antibacterial and anticaries action was totally minimized.
Maximum antioxidant activity was observed for the medium-roasted coffee; the dark coffee had a lower antioxidant activity...
Furthermore, in the present review coffee was found to be another effective biofilm “killer.” This can be attributed to its enhanced anti-adhesive and anti-biofilm properties
There is a concept known as critical pH, and when pH levels in the mouth become too acid and go below this critical pH, then the tooth enamel starts to demineralize (ie, dissolve away). But when the pH is above the critical pH (more alkaline), then the then the tooth enamel starts to remineralize (ie, the enamel surface rebuilds and thickens itself from the minerals found in the saliva).
Andrew Smart wrote:Find a drill-free dentist which practices minimally invasive dentistry, who adopts a "wait-and-see" approach if minor decay can be resolved with better oral care after instruction.