INBDE Integrated National Board Dental Exam Prep Set 2

Answer: A - Apical displacement into alveolar bone is an intrusion. The periodontal ligament is compressed because of the crushing fracture of the alveolar socket. The tooth, if located intraorally, will be short in appearance. If the tooth is primary, spontaneous re-eruption is preferred. Extract if it is hindering the permanent tooth because there is a risk of ankylosis. Permanent teeth should be stabilized in the anatomically correct position. Pulpal necrosis and root resorption is likely.