look this is something where you'll really need to get a consultation.  I mean there's really no way of guessing without clinical and X-ray examination. all I can tell you is there is a conservative way to handle it if at all u have not damaged the teeth too much which is called dental bonding or composite bonding.  if not you need Rct and crown.  I suggest if you want to be sure get an independent second opnion. either ways don't worry.  this is all very routine stuff.  in fact I also have a broken front tooth which had to be repaired when I was much younger.  hope this helps. 

If it has already been 6 months and you have pain, you probably need a root canal if possible...you need to get a fresh xray done to make sure there is no unfavourable fracture of the tooth...A fresh xray will confirm whether you need the rct or not.