Review Article
Apical External Root Resorption and Repair in Orthodontic Tooth Movement: Biological Events
Table 1
Risk factors-associated with orthodontic treatment-induced apical external root resorption [
1–
11].
| (1) Genetic factors | | (2) Systemic factors | | (3) Personal susceptibility | | (4) Root morphology | | (5) Alveolar bone morphology | | (6) The magnitude, type (continuous or intermittent), direction and duration of the applied orthodontic force | | (7) Type of treatment mechanics (rectangular or round arch wires, springs, elastics, etc) | | (8) Nature of tooth movement (intrusion, extrusion, tipping or bodily movement) | | (9) Distance of tooth movement | | (10) Overall duration of orthodontic treatment | |
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