Clinical Update quiz
The Clinical Update online is a free member service providing up to 11 FREE CPD hours per year.
Each month, the Clinical Update is published online. There are 11 Clinical Updates per year (February - December). This service is available to ADAVB and ADATas members only. Members can log in to view and answer the Clinical Update questions. If you answer at least eight out of 10 questions correctly, you will receive one hour of scientific CPD.
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February 2026 Clinical Update
Longitudinal study of root resorption on incisors caused by impacted maxillary canines—a clinical and cone beam CT assessment.
Dahlén A, Persson C, Lofthag Hansen S, Naoumova J. European Journal of Orthodontics, 2024, 46, cjae052. https://doi.org/10.1093/ejo/cjae052
Reviewed and edited by Professor Harcourt and Dr Condon. Compiled by Dr Sarah Chin.
This article was originally published in The Journal of Prosthetic Dentistry and has been edited for brevity and clarity.
Introduction
The maxillary canine is the most frequently displaced tooth after the third molar with prevalence ranging from 1.1 - 3.3%. Impacted maxillary canines (IMC) can result in root resorption of adjacent incisors. The incidence varies from 25-67% for lateral incisors and 5-31% for central incisors. Teeth with severe lesions and pulpal involvement are often asymptomatic. Radiographic examination is required to confirm ectopic eruption. Three dimensional imaging using cone beam computed tomography (CBCT) is superior to conventional radiographs to identify and assess the extent of the resorption and may help with treatment planning..
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