Young mother’s teeth are heavily crowded, the front teeth bite too deep, not only affect the facial aesthetics, more detrimental to dental cleaning and health! Difficulty: “distant water” to quench the “near thirst” Jiangsu Provincial Stomatological Hospital, Department of Orthodontics Peng Hui crowding in the front teeth section, the lower jaw removed two first molars (made porcelain crowns, the roots are not good), the advantage of doing so is to retain the healthy teeth, the disadvantage is to move the front teeth one by one to The disadvantage was that the front teeth were moved backwards and aligned one by one, which took a long time (34 months). At the end of the orthodontic treatment, the teeth were aligned and the smile was brighter!