Osteonecrosis of the jaw is when the bones in your jaw become sick and may die off. You know how your teeth are in your mouth and you chew food with them? Well, your teeth are resting on top of your jawbone. Osteonecrosis of the jaw means that the bone that holds your teeth in place is not healthy and can be causing problems.
Sometimes this happens when you take certain medications, like ones used to treat cancer, and sometimes it happens for no reason at all. This problem can make it harder to eat, speak, and sometimes even brush your teeth. It is important to go see a special kind of doctor called a dentist or an oral surgeon if you are having problems with your jaw or teeth. They can help you to figure out what is happening and work with your medical doctor to find the best way to fix it.