Yes. Just as all other health related issues are genetic - bad heart, varicose veins, poor eye-sight, body structure - so are your teeth dependant on your genes. Of course, as with most things, you have ultimate control over how bad, or good, things will go... like, if you're family is cavity prone regular check-ups, and brushing and flossing after every meal (flossing is most important for all mouths), as well as keeping gums can help you fight off the ravages of the "bad genes". It's all random, too. While my brother, who would never brush and floss, never had a cavity growing up, I was plagued... despite my impeccable dental hygiene! He got our mother's good side, while I got my father's bad side... though, I got more of our mother's mouth and tooth structure, and he got our father's less "toothy" structure.
Yes if their teeth are really bad.
All sugar is bad for your teeth.
Teeth go bad of sugar
THE BEST THING TO DO TO PREVENT BAD TEETH IS BRUSH YOUR TEETH.
no burping isn't bad for teeth it may be an acid/gas but it isn't a bad type which would damage your teeth
Irish people don't particularly have bad teeth.
yes you have to have braces on if your teeth are bad or less your teeth will move alone and your mouth will be weird
pop is bad for your teeth because of the suger by this it means the suger truns your teeth yellow
Very.
no fresh orange juice is not bad for your teeth
I do believe that soda is bad for your teeth if it is all you drink, It will rot your teeth and i know it is bad for your body, so is say yes it is bad for ya
A baby (they have not yet grown teeth) or an old person that has lost their teeth.