Distal movement of maxillary molars using orthodontic anchor screw

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  • KOMAGATA, KANAKO
    Department of Orthodontics, Division of Oral Structure, Function and Development, Asahi University School of Dentistry
  • TOME, WAKAKO
    Department of Orthodontics, Division of Oral Structure, Function and Development, Asahi University School of Dentistry
  • KITAI, NORIYUKI
    Department of Orthodontics, Division of Oral Structure, Function and Development, Asahi University School of Dentistry

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Other Title
  • 歯科矯正用アンカースクリューを用いて上顎大臼歯遠心移動を行った一治験例

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Abstract

In this case, a 20-year-9-month-old woman visited our hospital with chief complaints of the upper high canines and backward displacement of the lower right lateral incisor. The patient was diagnosed with skeletal Class I, Angle Class II, and average angle case with infralabioversion of the maxillary bilateral canines, mild crowding of the mandibular dentition, Class II canine and molar relationship, shallow vertical relationship, and rightward deviation of the mandibular midline. Orthodontic treatment without tooth extraction was performed using a pre-adjusted edgewise appliance with orthodontic anchor screws placed in the sidewall of palate. The upper molars were distalized and intruded and interproximal enamel reduction of the lower anterior teeth were performed. As a result, a Class I canine and molar relationship with ideal overjet and overbite, tight interdigitation, and satisfactory facial profile were achieved after treatment. Two years and eight months after the start of retention, both dentition and occlusion are stable.

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