Had a bike accident where my face took the impact = messed up my front upper 2 teeth. Have had multiple root canal treatments but they didn't work so I had 2 veneers (accident also pushed teeth back). 1 veneer recently fell out, glued back on and still kept falling out so had a new one made and this one is now already loose after 2 days. Why will veneers not work on this tooth and what should I do?? This is very expensive and need it sorted within a month because I'm studying abroad in OZ soon.