Prevention of External Apical Root Resorption

The issue of orthodontic-induced external apical root resorption has attracted the interest of clinicians and investigators because of the alarming clinical and legal implications associated with its occurrence in a severe form

Roberto Justus

2015

Scholarcy highlights

  • The issue of orthodontic-induced external apical root resorption has attracted the interest of clinicians and investigators because of the alarming clinical and legal implications associated with its occurrence in a severe form
  • Cross-sectional as well as longitudinal studies show that EARR is a small problem for the average orthodontic patient, with radiographic mean resorption of less than 2.5 mm
  • 1–5 % of orthodontic patients experience a severe form of EARR, defined as exceeding 4 mm or one-third of the original root length
  • Severe root resorption mainly occurs in maxillary incisors
  • Emphasis is given on the root-sparing treatment procedures to minimize the risk for development of the severe form of external apical root resorption

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