Night-time and Bad Breath

At night, generally, we have our mouths clamped shut. This reduces saliva flow up to 10 times than during the day. Since saliva carries factors which balances the pH in your mouth, a significant lack of this will allow more bacteria to grow and also create a more acidic environment than during the day. 

Now you know why you have bad breath in the morning.

Brushing and flossing thoroughly at night before going to bed significantly helps reduce bacterial growth over night which can improve bad breath and help prevent dental diseases. And don't forget to brush your tongue in the morning! 
 

Author
Dr. Hyun S. Bang, D.D.S. Doctor of Dental Surgery Loma Linda University 2008

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