My dd (5) has just had a check up with a new dentist. She has a very large gap between her two front teeth, and he has said that in fact it is caused by her frenulum extending beyond where it normally stops ( it continues right between the teeth). He's suggesting she will need oral surgery in the future to correct (probably followed by orthodontic work). It sounds like pretty minor surgery, but was wondering if anyone had any experience as I'd never heard of it before.