title: [Clinical evaluation of implant anchorage for molar intrusion: report of the short-term results].
abstract: 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).
authors.affiliation: 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.
authors.forename: Li-xia
authors.initials: LX
authors.lastname: Mao
authors.forename: Yong
authors.initials: Y
authors.lastname: Wu
authors.forename: Bing
authors.initials: B
authors.lastname: Fang
authors.forename: Zhi-yong
authors.initials: ZY
authors.lastname: Zhang
authors.forename: Wei
authors.initials: W
authors.lastname: Huang
authors.forename: Xin-tian
authors.initials: XT
authors.lastname: Lou
authors.forename: Yi-miao
authors.initials: YM
authors.lastname: Feng
authors.forename: Yun-hui
authors.initials: YH
authors.lastname: Xia
mesh_terms: 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