It is more common in clinical practice and may have retained teeth and gaps in the oral cavity, which may affect the morphology of the dental arch, occlusal function and aesthetics. The reasons for the emergence of ambulant teeth are not very clear, but may be due to trauma to the milk teeth, multiple teeth, dental tumors, tooth-containing cysts, premature loss of milk teeth and gum overgrowth, etc. There are some oral syndromes such as craniosynostosis syndrome, which may have multiple ambulant teeth due to genetic variation, and we have also seen unexplained ambulant permanent teeth in clinical practice. The first step in the treatment of buried teeth is to make a clear diagnosis by taking various x-rays to understand the morphological position of the buried teeth and to correctly locate the position of the buried teeth and the direction of the crown and roots. Nowadays, many hospitals have introduced cone-beam CT, which is very accurate in determining the morphology and size of the buried tooth as well as the relationship between the position of the buried tooth and the adjacent teeth. In addition, routine orthodontic examinations should be performed to analyze the patient’s facial shape, skeletal relationship and occlusion comprehensively, and to formulate a comprehensive treatment plan in conjunction with the patient’s wishes, because the human being is a whole person, and the patient’s aesthetics, health and function must be considered comprehensively before the ambulant teeth are considered as an integral part of the entire orthodontic plan, and for patients who need to be extracted for orthodontic treatment, priority can be given to extracting the ambulant teeth. For patients who need extraction, priority can be given to extracting the buried teeth. For buried teeth with angular crown roots or roots that are too short, extraction should also be considered, and for teeth that are suitable for eruptive traction, the appropriate surgical plan and orthodontic traction should be decided. The time for traction is not very definite. A single buried tooth can usually be tracted into the dentition in one or two years if there is no accident, while a buried tooth with more than two teeth will take longer. The younger the patient, the faster the response to traction, especially in patients with craniosynostosis syndrome, where more than ten ambulant teeth are usually present, the faster the response to traction. Of course, the success rate of traction for ambulant teeth is 75-85%, with the possibility of traction failure. Buried teeth need to be treated by a combination of orthodontic traction and surgical assistance through the cooperation of orthodontics and oral surgery. The latter is a commonly used surgical method because it is very similar to the normal eruption of teeth and conforms to the growth and attachment environment of periodontal tissues, and has the advantages of better gingival shape and attachment of periodontal tissues such as alveolar bone after treatment is completed, and the patient feels comfortable and less infected. In summary, through a clear diagnosis, combined with a reasonable orthodontic treatment plan, the correct surgical approach and the appropriate traction force and support, can effectively tract the ambulant teeth and achieve good aesthetic and functional results.