Without an x-ray there's little we can tell you. It would be best to find a dentist and have your tooth properly examined. If the hole is as you describe it's only a matter of time before you begin to have pain and/or swelling and unfortunately the longer you delay it's likely that your o...
The answer to your question is determined by HOW DID THEY BREAK?
If your lower teeth are not in an ideal position, they may BE THE CAUSE OF THE BROKEN EDGES. Since you are in braces now, this may very well be the case, as the lower teeth were "jumbled" or crooked, causing pressure on these...
No Need for shame--these are cavities from the heavy sugar exposure--like many kids and some adults do--most likely it will be a simple repair--a good cosmetic dentist can make your teeth look perfect again--typically this is not a big expense like crowns or root canals or implants --$2-300 each...