Good clean breath!: Brushing before you eat in the morning provides a benefit of avoiding brushing acid from foods and drink around your teeth. This is important to prevent decalcification. The natural tendency to sleep with your mouth open causes residual plaque and bacteria to harden between your teeth leading to what is referred to as "morning mouth". Brushing before improves the taste and "feel" of your teeth.
Answered 5/25/2017
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