A Case Of Asymmetrical Extraction Wiht Mandibular Molars Mesialization

A case extraction #15#25#35#37#46,use straight wire technique with TADs, #38 mesialization. A 14 year old girl scheduled for orthodontic treatment was assessed by a pediatric stomatologist to be unable to retain 37. In orthodontic treatment, asymmetric extraction #15#25#35#37#46, straight wire appliance technology combined with TADs, closed the tooth extraction space, mesial movement 38, realized the reverse rotation of the mandibular, and improved the effect of bite relationship and profile. In orthodontic patients, how to choose the time that the mesial movement of the mandibular third molar replaces the second molar. 1. After the mandibular second molar is extracted, the mesial movement of the third molar replaces the second molar, and the best time is in the third molar Stage 7 calcification of the tooth embryo. 2. Necessary conditions of mandibular inversion i) mesial movement of molar teeth; ii) Effective depressions of maxillary and mandibular anterior teeth.