Impacted teeth

Last revised by Henry Knipe on 4 May 2022

Impacted teeth are common with the third molars most common. Other impacted teeth (e.g. maxillary canines, maxillary second molar, mandibular second premolar, and mandibular second molar) are less common 1,2

Radiographics features


Cone beam CT (CBCT) allows for 1,3:

  • impacted tooth localization
  • impacted tooth anatomy, e.g. root dilaceration
  • proximity to other teeth
  • proximity to other structures, e.g. inferior alveolar canal, incisive canal
  • assess for both extrinsic and intrinsic root resorption
  • surgical planning

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Cases and figures

  • Case 1: impacted left third mandibular molar
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  • Case 2: impacted canine treated with gold chain
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  • Case 3: impacted permanent canine
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