Patient: My son just turned five years old and found a new tooth growing inside one of the upper incisors, this new tooth is ninety degrees twisted (the first tooth replaced) the milk teeth have not fallen out, today I asked the doctor to pull out the milk teeth, please ask Dr. Yang whether this tooth can be corrected, how to correct? When is the best time to correct it?
Yang Jie, Pediatric Dentistry, Peking University Stomatology Hospital: First of all, it is necessary to determine if the twisted tooth is a normal permanent tooth, just twisted; there is also a possibility that it is a multiple tooth, because under normal circumstances, the maxillary front teeth will not erupt yet at the age of 5. This requires an x-ray to determine what the case is. If the former is the case, early orthodontic treatment is needed. If it is the latter, multiple teeth need to be extracted early. Yang Jie, Department of Pediatric Dentistry, Peking University Stomatology Hospital