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Author Spotlight: Insights into an Efficient Murine Maxillary Orthodontic Model Protocol
Published on: October 27, 2023
External invasive resorption: Case report of a rapidly progressive process in an impacted maxillary canine during
Avi Shemesh1, Galit Birnboim-Blau2, Ronen Zoizner2
1Department of Endodontics, Israel Defense Forces (IDF) Medical Corps, Ramat Gan, Israel.
Abstract:
External invasive resorption (EIR) is a type of external resorption that can involve the coronal, middle and apical parts of the root in its advanced stages and results in progressive loss of tooth structure. Common potential predisposing factors for EIR are orthodontic treatment and trauma. The EIR progression rate has not been described previously. This case report describes rapidly progressive EIR in an impacted maxillary canine after surgical exposure and application of directional orthodontic traction over 8 months. The article discusses the etiologies of EIR, the possible reasons for EIR and its rapid progression in the presented case and proposes a new theory of the connection between EIR and tooth impaction.
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