Alveolar Arch 〈TOP〉

Alveolar arch forms are generally classified into three primary shapes based on their curvature and width-to-length ratio:

A rounded, circular shape throughout. This form provides the least resistance to rotational forces and is often associated with the smallest denture-bearing surface. 2. Clinical Significance alveolar arch

Narrow anterior that widens toward the posterior. It provides moderate resistance to movement. Alveolar arch forms are generally classified into three

Right and left sides run almost parallel with a broad anterior. This form offers the largest denture-bearing area and best resistance to rotational movement. alveolar arch

The shape and size of the arch directly impact complete denture retention . Square arches are typically preferred as they provide greater surface contact for adhesive and cohesive forces.