title: Maxillary molar intrusion with micro-implant anchorage (MIA).
abstract: BACKGROUND
  Intrusion of the maxillary molars is difficult to accomplish using traditional methods of anchorage.
  
  
  OBJECTIVE
  To describe methods of maxillary molar intrusion with the aid of micro-implants.
  
  
  METHODS
  Micro-implants provide stable intra-oral anchorage and enable the maxillary molars to be intruded without the usual side effects. Three adult patients are presented showing how micro-implants can be used to intrude the maxillary molars. In the first patient micro-implants were placed in the alveolar process between the second premolar and first molar, in the second patient micro-implants were placed in the palatal alveolar process between the first and second molars, and in the third patient a micro-implant was placed in the palate paramedially. A transpalatal bar was used to prevent bucco- or linguoversion of the molars during intrusion.
  
  
  CONCLUSIONS
  The maxillary molars can be intruded with intra-oral anchorage derived from microscrew implants.
authors.affiliation: Department of Orthodontics, Kyungpook National University, Daegu, Korea. parkhs@knu.ac.kr
authors.forename: Hyo-Sang
authors.initials: HS
authors.lastname: Park
authors.forename: Bong-Kyu
authors.initials: BK
authors.lastname: Jang
authors.forename: Hee-Moon
authors.initials: HM
authors.lastname: Kyung
mesh_terms: D000328:Adult; D000539:Alveolar Process / Q000601:surgery; D001641:Bicuspid / Q000473:pathology; D001863:Bone Screws; D015921:Dental Implants; D005260:Female; D006801:Humans; D008297:Male; D008437:Maxilla / Q000601:surgery; D008963:Molar / Q000473:pathology*; D024343:Open Bite / Q000628:therapy; D052280:Orthodontic Anchorage Procedures / Q000295:instrumentation*; D016382:Orthodontic Appliance Design; D010159:Palate / Q000601:surgery; D014087:Tooth Movement Techniques / Q000295:instrumentation*
chemical_list: D015921:Dental Implants