My baby girl is 2.2 years. when she had upper 2 and lower 2 teeth, since that time her teeth has started chipping off and breaking. Now her 4 upper teeth are half broken, chipping off n it has started in her 4 molars too. the lower 4 teeth are ok. We consulted many dentists all give different reasons. she has started feeling pain n discomfort since last few days and not letting us touch her teeth fir brushing or anything. A doctor said entire root canal with filling and capping under general anaesthesia. i am scared, that is unsafe and she is just 2 years. even this is ?!!!