salt hurts my teeth???

Question

if i eat pretzels the big peices of salt hurt my teeth its comparable to the shocking pain of chewing tinfoil. I know i dont have any cavities or anything like that, dose this hppen to anyone else or is there a reason why this happens???

Answer 1

I haven't heard of someone being sensitive to salt before. Usually it is sugar. But hey why not. Salt or sugar molecules outside a tooth would cause water molecules inside a tooth to move out towards the salt or sugar. If you need to know more about why this happens look up Hypertonic\Hypotonic\Isotonic solutions. Water does not move through the crown of a tooth which is made up of enamel. But the root of the tooth is a material called Cementum, and cementum like dentin contains a lot of water within tubules that run through these mineralized tissues. A tooth that has had a little gum resorption will start to expose the Cementum layer to the mouth environment. It is the movement of water inside the tubules that causes the sensation of pain, since the tubules run all the way from the outside of the tooth to the nerve deep inside the tooth.
This can also happen to a tooth that has a cavity and maybe not any loss of gum, since the cavity exposes the tubules inside the tooth. But surprisingly, most people don't feel the cavity, mostly because the decay gunks up the tubules.
If the sensitivity is truly not from cavities but from loss of gum tissue, the using a desensitizing toothpaste like Sensodyne should help.

Answer 2

1

Answer 3

No. Some people have even been known to brush their teeth with salt.

Answer 4

Sesitive teeth is a very common problem. Use toothpaste for sensitive teeth. It makes your teeth stronger and more tolerant of foods.

Answer 5

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Answer 6

my teeth r like that 2 except if i have anything hot or cold i will get a sting or shock thru my teeth its normal...

Answer 7

you probably just have sensitive teeth....just be careful and u should be fine