title: [Clinical stability of immediate load of domestic micro-titanium screws for anchorage in orthodontics].
abstract: OBJECTIVE
  To investigate the immediate load stability of domestic micro-titanium screws for anchorage in orthodontics.
  
  
  METHODS
  Adult orthodontic patients needing the greatest anchorage were included in the study. Domestic micro-titanium screws were used to be orthodontic anchorage, immediate implantation and loading were conducted.
  
  
  RESULTS
  A total of 52 implants of domestic micro-titanium anchorage in 20 patients were used. Forty-seven implants were successful in 20 patients,5 failed. The total loading time was 3-8 months.
  
  
  CONCLUSIONS
  Domestic micro-titanium implant screws for anchorage can meet the needs of clinical orthodontics. However, immediate loading results in 10.4% failure rate, especially for the implant with a diameter of 1.2mmx7mm. Supported by Science and Technology Development Foundation of Fengxian District, Shanghai Municipality (Grant No. 090602).
authors.affiliation: Department of Dentistry, Fengcheng Hospital in Fengxian District, Shanghai, China. zhengweihua0422@sina.com
authors.forename: Qing-zhong
authors.initials: QZ
authors.lastname: Zheng
authors.forename: Xing-qian
authors.initials: XQ
authors.lastname: Xie
authors.forename: Xue-mei
authors.initials: XM
authors.lastname: Xie
authors.forename: Jian
authors.initials: J
authors.lastname: Wang
authors.forename: Xiao-jia
authors.initials: XJ
authors.lastname: Yu
mesh_terms: D000328:Adult; D001863:Bone Screws; D006801:Humans; D016382:Orthodontic Appliance Design; D009970:Orthodontics; D014025:Titanium
chemical_list: D014025:Titanium