I understand we have bad breath when we first wake up, but specifically why do our teeth need a second brushing first thing in the morning?
In: Biology
Look, if you really hate it (like I do) then you don’t “have” to. But, the bacteria in your mouth multiply overnight, and then they can feed on the sugars from your breakfast, release acids, and damage your teeth. Also, if you miss one of your nighttime brushes and you’re only brushing once a day, then they have time to build a biofilm (think bacteria concrete) that your toothbrush can struggle to remove.
The people that say you should do it 30 minutes after breakfast are technically correct, but honestly, if you remember better first thing in the morning, do it then.
You don’t want to be on prescription toothpaste/mouthwash that has to stay on your teeth (ie no eating or drinking or rinsing) for 30 minutes after you brush because you’ve had 25 cavities in 5 years.
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