[Clinical evaluation of implant anchorage for molar intrusion: report of the short-term results].
OBJECTIVE
The purpose of this study is to evaluate the efficiency and security of self-drilling mini-screw implant anchorage for molar intrusion, to achieve the right position of the mini-screw implant.


METHODS
Ten patients with overerupted maxillary molars were selected, aging from 25 to 53 years old, the average age was 33 years old. There were 2 men and 8 women. All the overerupted molars were intruded in gingival direction with mini-screw implants anchorage.


RESULTS
The mean intrusive movement of the overerupted maxillary molars was 3 mm, the mean treatment time were 3.5 months.All of the missing teeth were treated by prosthetic treatment. No obvious root resorption, pulp necrosis and tooth loosen were found.


CONCLUSIONS
Significant true intrusion of maxillary molars could be obtained by mini-screw implant as bony anchorage.Supported by Shanghai Leading Academic Discipline Project (Grant No.Y0203) and Research Fund of Science and Technology Committee of Shanghai Municipality (Grant No.05B224).
Mao
Li-xia
LX
Department of Oral and Maxillofacial Surgery, College of Stomatology, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Research Institute of Stomatology, China.
Wu
Yong
Y
Fang
Bing
B
Zhang
Zhi-yong
ZY
Huang
Wei
W
Lou
Xin-tian
XT
Feng
Yi-miao
YM
Xia
Yun-hui
YH
D000328:Adult; D001863:Bone Screws; D005260:Female; D006801:Humans; D008297:Male; D008437:Maxilla; D008875:Middle Aged; D008963:Molar; D052280:Orthodontic Anchorage Procedures; D012391:Root Resorption; D014087:Tooth Movement Techniques