Background:

preventing the premature loss of permanent teeth is the fundamental objective of the dental surgeon. External reabsorption can be a cause of tooth loss.

Objective:

to present the surgical management of a case of external root reabsorption of a central and left lateral incisor, caused by a retained upper canine.

Case report:

16-year-old female patient who comes to the office because she feels mobility of her incisors; the intra-oral clinical examination showed the absence in the mouth of the upper left canine and Miller's degree 1 mobility of the central and lateral incisors is observed on the same side. The radiographic and tomographic evaluation is done, and the presence of root reabsorption of the incisors is evidenced. Surgical removal of the canine accompanied by bone regeneration is proposed, to prevent external reabsorption from progressing. It is evaluated radiographically at 6 months after surgery, showing that there is no progression of reabsorption and there is a good stability of the compromised incisors.

Conclusions:

with the removal of the impacted canine and bone regeneration, the patient was able to prevent the external reabsorption from progressing and recover the stability of his incisors.

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