Brushing soon after eating could be acceptable
from Dentistry Today
Brushing one's teeth right after a meal may not cause any problems, according to the Japan Society of Pediatric Dentistry. In recent years, most people in the dental profession recommended waiting 30 to 60 minutes after eating to brush. This way, the acidic nature of many foods can subside before spreading the acidity around and harming one's enamel and dentin.
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