Maxillary molar intrusion with micro-implant anchorage (MIA).
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.
Park
Hyo-Sang
HS
Department of Orthodontics, Kyungpook National University, Daegu, Korea. parkhs@knu.ac.kr
Jang
Bong-Kyu
BK
Kyung
Hee-Moon
HM
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*
D015921:Dental Implants