How is the Curve of Spee typically characterized in a patient with Class II malocclusion?

In Class II malocclusion (retrognathic mandible/prognathic maxilla), the Curve of Spee is typically steep or exaggerated. The Curve of Spee is an anteroposterior curve of the occlusal plane, passing through the cusp tips of the mandibular teeth from canine to last molar. In Class II malocclusion, the mandibular teeth are positioned more posteriorly relative to the maxillary teeth, and the posterior teeth tend to over-erupt relative to the anterior teeth (or anterior teeth may be protrusive), resulting in a deeper (steeper) curve. Leveling the Curve of Spee is an important orthodontic treatment objective and requires space (arch length) for correction.