HOSA Dental Terminology Practice

What is another name for Class III malocclusion?

1. Overbite

2. Underbite

3. Crossbite

4. Retruded occlusion

The correct answer is: Underbite

Class III malocclusion is clinically recognized as an underbite. This condition occurs when the lower teeth protrude further than the upper teeth when the jaws are closed. This positioning can affect both the alignment of the teeth and the overall bite profile, potentially leading to functional and aesthetic concerns. Understanding this terminology is crucial for dental professionals because it directly relates to how malocclusions are diagnosed and treated. While terms like overbite, crossbite, and retruded occlusion describe different dental relationships, they do not characterize Class III malocclusion. An overbite typically refers to an excessive overlap of the upper front teeth over the lower front teeth, while a crossbite involves misalignment where some upper teeth bite inside lower teeth, and retruded occlusion refers to a position where the jaw is positioned backward relative to the normal occlusion. Each of these terms denotes unique clinical situations and helps in identifying the specific issues affecting a patient's dental health.