what astronauts do to keep their mouth healthy is to brush their teeth obviously (and what do suits have to do with your mouth) NOTHING!
by keeping your eyes closed and to keep your mouth open lol
it is not a law It is always best to brush your teeth twice a day, to keep your mouth healthy.
When we sneeze , the particles can come out and spread in the air . This can be carried to a healthy person's nose . This can make a healthy person infected .That's why we should cover our mouth and nose while sneezing .
destrosy normal alkalinity level in mouth neede to keep teeth healthy/bacteria
it is in mouth that the food we eat is broken in to small pieces which makes it easier to be digested (large molecules of food converted to small once)
maintanence of good oral hygene, healthy food habit and visiting dentist once in 6 month will help
you can keep your stomach healthy by eating healthy foods
If she's eating regularly, chewing food without trouble and not loosing weight, and her gums and teeth appear healthy, then her mouth will be healthy.
By reading Twilight!!! and exercising. and eating healthy. everything you do to keep your body healthy, will keep the system healthy.
Spit keeps u healthy by it being wet n it keeps your mouth wet so it wont get dry or dehydrated. Also so u can swallow your food down easly.
you keep it healthy by pooping on your self