Which curve is described as a cross-arch curvature of the occlusal plane with more lingual inclination distally?

Which curve is described as a cross-arch curvature of the occlusal plane with more lingual inclination distally?

• A. Curve of Spee
• B. Lingualized Occlusion
• C. Camper's Line
• D. Curve of Wilson

Answer: (D)

The Curve of Wilson describes the cross-arch, transverse curvature of the occlusal plane. As you move toward the posterior of the arch, the teeth incline more toward the tongue, giving greater lingual inclination distally. This transverse orientation across the arches is what defines this curve. In contrast, the Curve of Spee is the sagittal, anteroposterior curve of the occlusal surfaces, Camper's line is a facial reference line used for orientation, and lingualized occlusion refers to a specific occlusal scheme rather than a curvature of the occlusal plane.

The Curve of Wilson describes the cross-arch, transverse curvature of the occlusal plane. As you move toward the posterior of the arch, the teeth incline more toward the tongue, giving greater lingual inclination distally. This transverse orientation across the arches is what defines this curve. In contrast, the Curve of Spee is the sagittal, anteroposterior curve of the occlusal surfaces, Camper's line is a facial reference line used for orientation, and lingualized occlusion refers to a specific occlusal scheme rather than a curvature of the occlusal plane.