Replacement resorption is a direct result of trauma and has been described in detail by Andreasen.
A high incidence of replacement resorption follows replantation and luxation, particularly if there was delay in replacing the tooth or there was an accompanying fracture of the alveolus. The condition has also been referred to as ankylosis, because there is gradual resorption of the root, accompanied by the simultaneous replacement by bony trabeculae. Radiographically, the periodontal ligament space will be absent, the bone merging imperceptibly with the dentine. Once started, this condition is usually irreversible, leading ultimately to the replacement of the entire root. Calcium hydroxide treatment is unlikely to help in the treatment of this type of resorption.
A high incidence of replacement resorption follows replantation and luxation, particularly if there was delay in replacing the tooth or there was an accompanying fracture of the alveolus. The condition has also been referred to as ankylosis, because there is gradual resorption of the root, accompanied by the simultaneous replacement by bony trabeculae. Radiographically, the periodontal ligament space will be absent, the bone merging imperceptibly with the dentine. Once started, this condition is usually irreversible, leading ultimately to the replacement of the entire root. Calcium hydroxide treatment is unlikely to help in the treatment of this type of resorption.