The crescent or U-shaped arrangement of teeth in the jaw. Humans have two arches: the Maxillary Arch (upper jaw, fixed to the skull) and the Mandibular Arch (lower jaw, movable).

Why It Matters

The alignment of the two arches determines the bite (occlusion). Loss of an entire arch of teeth leads to facial collapse and inability to eat.

Clinical Details

• Shape: varies from U-shaped (ideal) to V-shaped (constricted, often requiring expansion).

FAQ

What is a dental arch?

The curving row of teeth in the upper or lower jaw.

What is a full arch dental implant?

A treatment (like All-on-4) where an entire row of missing teeth is replaced by a fixed bridge supported by 4 to 6 implants.