Whether a child’s multiple teeth must be extracted can be decided on a case-by-case basis. If the multiple teeth are located in the middle of the incisors and squeeze the roots, causing the crown to tilt toward the far middle and forming a large gap, the multiple teeth need to be extracted under local anesthesia to close the middle gap to avoid loosening and loss of the incisors after root resorption. If the multifocal tooth exists in the alveolar bone, which prevents the eruption of permanent teeth or has formed a cyst, it needs to be extracted in time. If the roots of the permanent teeth adjacent to the multiple teeth are excessively curved or the roots are short, the prognosis is poor, the permanent teeth can be extracted and the multiple teeth can be moved into the dental row through orthodontic traction to exercise the chewing function. If the ambiguous multiple teeth are far away from other teeth and do not cause clinical symptoms, they can be left unextracted.