Signs and Symptoms
The tooth tests vital and this radiographic view was the foundation for the referral generated from an annual hygiene appointment.
Beyond the obvious distal decay pattern the additional distal root defect was evaluated by acquiring a CBCT scan…
The following CBCT slice demonstrates the “extra canal” nature of the defect perforating the lingual external root face about 4mm. below the osseous crestal height.
The sagittal CBCT slice demonstrates a buccal-lingual extent of the defect.
“Extra canal invasive resorption” described throughout the dentinal literature by a number of different nomenclatures remains a destructive, often asymptomatic process. The defect will need to be treated by debridement, and restored in order to retain a tooth affected by this process, often in conjunction with conventional endodontic therapy.
The above case was recommended for extraction with an implant replacement.
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