which is hanging from the gum of the child is a milk
tooth whose time has come to be exfoliated or in simple terms it should have had shed at age of 6 years or 6. 5 yrs. All you need to do is visit
,so the dentist can take out this over retained tooth. There is nothing to worry as it is completely painless procedure and a new permanent tooth will erupt in a short time after this tooth is taken out.