Baby teeth rot can be treated as follows: 1, milk teeth have cavities need to remove decayed tooth tissue, apply calcium hydroxide cushion and then use glass ionomer cementum or silver amalgam for filling. 2, X-ray shows that the pulp is exposed and infected, need to be under local anesthesia with a rubber barricade to grind open the pulp cavity, remove the pulp, use iodine mimic paste to fill the root canals, and then close the cavity to restore the function of mastication. 3, milk teeth When large defects can not form a fixed position, it is necessary to apply the metal pre-formed crown restoration.4, when the tooth is only left with a residual root that can not be retained, you can wear a gap retainer after extraction, waiting for the eruption of permanent teeth.