HOSA Dental Terminology Practice 2025 - Free Dental Terminology Practice Questions and Study Guide

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Question: 1 / 1775

What is a philtrum?

A fold of tissue behind the molars.

A small depression at the midline of the upper lip.

A philtrum is defined as a small depression or groove located at the midline of the upper lip, which is an important anatomical feature in human facial structure. This characteristic anatomy is part of the normal facial features that develop as a person grows. The significance of the philtrum lies in its role in the facial aesthetics and identity of individuals, as well as its relevance in diagnosing certain congenital conditions, such as fetal alcohol syndrome, where the appearance of the philtrum may be notably altered.

The other options refer to different anatomical structures or conditions: folds of tissue behind the molars would be related to oral tissues, enamel defects pertain to dental health, and elements of the jawbone structure are associated with the skeletal framework of the mouth and face. Each of these plays a distinct role in oral health, but they do not accurately describe what a philtrum is.

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An enamel defect in the teeth.

A part of the jawbone structure.

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