What is a common finding during the examination of an avulsed tooth that has been replanted?

A common finding during the examination of an avulsed tooth that has been replanted is external resorption. When a tooth is replanted after being avulsed, there is a risk of external root resorption due to factors such as the periodontal ligament's response to injury and subsequent re-establishment of blood supply. The external surface of the root may begin to resorb as the surrounding tissue reacts to the trauma and the replantation procedure. This process does not indicate failure of the treatment; rather, it is a natural biological response to the injury the tooth has sustained.

In contrast, internal resorption, pulp necrosis, and cementum atrophy are less commonly associated with the immediate findings following replantation. Internal resorption tends to occur more slowly and is usually related to irreversible pulp changes rather than a direct result of the replantation. Pulp necrosis is a potential long-term complication that may arise if the tooth's vitality is compromised, but it is not a finding immediately upon examination of a replanted tooth. Cementum atrophy, similarly, is not typically observed immediately after replantation and can occur due to chronic conditions rather than an acute response to avulsion and replantation.