Factors predisposing to maxillary anchorage loss: a retrospective study of 1403 cases.

ABSTRACT: Anchorage loss is very disturbing for orthodontists and patients during orthodontic treatment, which usually results in bad treatment effects. Despite the same treatment strategy, different patients show different tendencies toward anchorage loss, which influences the treatment results and should preferably be predicted before the treatment is begun. However, relatively little research has been conducted on which patients are more likely to lose anchorage. The mesial tipping of the first molar marks the onset of anchorage loss, and changes in the angulation of the first molar are closely related to anchorage loss. This cross-sectional study aimed to determine how the mesiodistal angulation of the upper first molars changes during general orthodontic treatment and to identify the individual

SUBMITTER: Su H 

PROVIDER: S-EPMC4192127 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature