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Ectopic Eruption of the Maxillary First Permanent Molar: Rate and Predictive Factors of Self-correction and Survey of Specialists Attitudes Regarding Intervention

Purpose: To retrospectively assess the incidence and predictive factors for self-correction of ectopic eruption of maxillary permanent first molars (EE) and the prevailing attitudes amongst surveyed specialists regarding intervention in cases of EE.
Methods: Charts of patients diagnosed with EE were assessed for predictive clinical and radiographic factors. An online survey was sent to pediatric dentists and orthodontists.
Results: The rate of self-correction was 71%. One third of self-corrections occurred after age 9. Increased amount of impaction (r(43)=0.59, p<.001) and degree of resorption (r(57)=0.41, p=.001) were positively correlated with irreversibility. Orthodontists estimated the spontaneous self-correction rate to be lower (t(1178)=19.2, p<.001) than pediatric dentists.
Conclusions: One third of self-corrections occurred after 9 years of age and delaying treatment of EE may be a viable option when uncertain of the outcome. Reliable predictive factors of irreversibility of EE were identified. Differences exist between pediatric dentists and orthodontists regarding management of EE.

Identiferoai:union.ndltd.org:TORONTO/oai:tspace.library.utoronto.ca:1807/42806
Date21 November 2013
CreatorsDabbagh, Basma
ContributorsAndrews, Paul
Source SetsUniversity of Toronto
Languageen_ca
Detected LanguageEnglish
TypeThesis

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