[Clinical application of micro-implant anchorage for treatment of scissors bite on one-side posterior teeth].
OBJECTIVE
To evaluate the efficiency of micro-implant anchorage (MIA) for posterior teeth intruded and the result of the treatment of scissors bite on one-side posterior teeth.


METHODS
The study included 3 females and 1 male. All the overextruding upper posterior teeth were intruded by the MIA. The micro-implant screws were inserted into the buccal and lingual alveolar hone of the maxillary posterior teeth or the buccal alveolar hone of mandibular posterior teeth. About 0.833 N force was used to intrude the overgrowthing upper posterior teeth, and about 0.559 N force was used to draw buecally the low posterior teeth tilting lingually.


RESULTS
The overextruding upper posterior teeth were intruded 2.0 mm on average, the low posterior teeth tilting lingually were upreared buccally. All the MIA screws kept stable during the treatment, but there was a slight inflammation around the implant screws.


CONCLUSIONS
MIA could be used as an efficient method to correct scissors bite on one-side posterior teeth with intruding overgrowth upper posterior teeth, or uprearing buccally the tilting low posterior teeth.
Wang
Zeng-quan
ZQ
Dept. of Orthodontics, The Affiliated Stomatological Hospital, Foshan College of Science and Technology, Foshan 528000, China.
Zhou
Hui-xia
HX
Chen
Gui-ling
GL
Ai
Yi-long
YL
Huang
Chun-huo
CH
Lu
Yu
Y
Tang
Kai-hong
KH
Du
Li-juan
LJ
Zeng
Hua-bin
HB
Huang
Xiao-qing
XQ
D001863:Bone Screws; D003766:Dental Occlusion; D005260:Female; D006801:Humans; D008297:Male; D008963:Molar; D024343:Open Bite; D052280:Orthodontic Anchorage Procedures; D014087:Tooth Movement Techniques