Half of the incisors are bad need to be tested for pulp vitality and X-rayed. If the incisor does not have pulp penetration, chemicals can be applied to the surface of the tooth tissue to soften the dentin and then slowly remove the decayed material, fill the tooth with composite resin and restore the anatomical shape of the crown, taking care to avoid gnawing on foreign objects and eating highly viscous food with the incisor. If the pulp angle is exposed in the x-ray, the pulp can be removed by grinding open the pulp cavity under local anesthesia, root canal preparation, filling and cementing the pile core to prevent fracture of the incisor, and making porcelain or all-ceramic crown restoration after tooth preparation. If chronic inflammation occurs in the pulp of the incisor resulting in root canal resorption, it is best to perform retrograde root canal filling, close the apical hole, and finally perform full crown restoration.