>>12531581Pretty much the only blood producing marrow is in your sternum and ribs, all the other hollow bones just contain fat when you are an adult.
>>12531283Dentistry isnt expensive, unless you live in America, where dentists need to pay an "insurance consultat" just to fight with insurance companies over payment, have very expensive insurance against legal jeopardy due to fucked up legal system etc.
An American dentist has fees that are at least 3 times what I charge, and I live in a high-income Euro country.
>>12527752You most likely grind your teeth if you have fillings break that often. Fillings do not come loose from chewing gum unless they were already broken. Thankfully American dentists are among the best in the world when it comes to treating grinding and other parafunctions, find a dentist who has done the Koi, Dawson or Pankey courses and he can fix you up.