Occlusal refers to which surface?

• A. Anterior teeth
• B. Molars
• C. Posterior teeth
• D. All teeth

Answer: (C)

Occlusal surfaces are the chewing surfaces that come into contact with the opposing arch when you bite. These surfaces are found on the back teeth—the premolars and molars—because their ridged, flat tops are built for grinding and crushing food. The front teeth (incisors and canines) have incisal or biting edges, not occlusal surfaces, so the term specifically points to the posterior teeth. Since occlusion involves the contact of teeth during biting, it isn’t referring to all teeth, but rather to those back-teeth designed for grinding. That's why the correct choice points to the posterior teeth.