NHS Education for Scotland National PEF Priorities

But if gum is chewed for 10-20 minutes, some experts hold that it will then act to decrease tooth decay. One study showed that after chewing gum for 10 minutes each waking hour for two weeks, participants in the study increased their salivary flow, the pH of their saliva, and its buffering capacity, all of which would tend to neutralize some of the acid produced by mouth—the cause of tooth ... ................
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