It is necessary to prevent tooth decay so that you can keep healthy teeth without getting toothaches, root canals, and/or dentures.
Cold environments such as the Arctic or deep ocean waters can slow down the decay process by reducing microbial activity. Dry environments like deserts or certain caves can also inhibit decay by limiting moisture, which is necessary for decomposition. Additionally, certain chemical preservatives such as formaldehyde can be used to prevent decay in laboratory settings.
Those elements undergo the 'decay' process which have unstable nuclei so decay is necessary to gain the stability. such elements form the smaller stable nuclei as Lead nucleus.
Brush your teeth!
Flouride
which element present in our toothpaste protects out tooth from the tooth decay?
NO
Nope, in fact it helps to cause tooth decay, because of all the sugar in it.
acids cause tooth decay u can prevent from drinking acidy drinks
Fluoride helps prevent tooth decay
To fully explain radioactive decay you need quantum mechanics.
Flouride.
By strengthining your tooth enamal