Predisposing factors for severe incisor root resorption associated with impacted maxillary canines

Stella Chaushu*, Karolina Kaczor-Urbanowicz, Małgorzata Zadurska, Adrian Becker

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    65 Scopus citations


    Methods Clinical and radiographic data of 55 consecutive patients (77 canines) with SIRR of 96 incisors were compared with data from 57 consecutive control subjects (72 canines). The studied variables were age, sex, position of the impacted canine, size of the dental follicle, and incidence of anomalous lateral incisors.

    Results Lateral incisors were more often affected than central incisors, and bilateral SIRR was common. When each variable was examined separately, SIRR was significantly associated with female sex, severely mesiodistally displaced and vertically positioned canines in the middle third of the adjacent incisor root, dental follicles wider than 2 mm, and normal lateral incisors. The multivariate statistical analysis showed that the risk for SIRR was significantly higher in female subjects (4.2 times) with enlarged dental follicles (8.3 times) and normal lateral incisors (5.8 times).

    Conclusions SIRR should be carefully screened in female patients with enlarged dental follicles and normal lateral incisors. A greater degree of canine displacement might also be associated with SIRR.

    Introduction Severe incisor root resorption (SIRR) associated with impacted maxillary canines is rare but has important implications. Early diagnosis and treatment are imperative. In this investigation, we aimed to identify predisposing factors for impacted canine-linked SIRR.

    Original languageAmerican English
    Pages (from-to)52-60
    Number of pages9
    JournalAmerican Journal of Orthodontics and Dentofacial Orthopedics
    Issue number1
    StatePublished - 1 Jan 2015

    Bibliographical note

    Publisher Copyright:
    © 2015 American Association of Orthodontists.


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