Tooth Resorption

Many lesions are found on imaging before symptoms appear. Sensitivity or pain can develop when a defect reaches the pulp, and internal resorption may create a pink appearance in the crown.

Trauma, inflammation, and pressure from an impacted tooth can be associated with resorption. An impacted maxillary canine can be related to resorption of an adjacent lateral incisor root.

A defect may begin within the canal or on the outer root surface and enlarge into dentine. Its effect depends on its location and whether the pulp, root wall, or periodontal attachment becomes involved.

An impacted or displaced maxillary canine can place an adjacent lateral incisor at risk. Previous dental trauma and inflammatory changes are also relevant associations.

Imaging locates the defect and shows its relationship to the canal, root surface, and neighbouring teeth. Three-dimensional CBCT can reveal resorption associated with an impacted canine more clearly than a flat image.

Treatment targets the resorptive defect and the tissue involved. Internal lesions may need root canal treatment and repair when the tooth remains manageable; extensive loss may make removal necessary.

The workload depends on the resorption’s location, size, and effect on the tooth. Imaging is important because the defect must be mapped before a treatment route is selected.

Progressive resorption can weaken the root and reduce remaining tooth structure. A lesion beside an impacted canine can damage the neighbouring incisor root.

After dental trauma, prompt management and follow-up help detect later resorptive change. Imaging an impacted canine and nearby roots can identify a relationship that needs monitoring.