Orthodontic Assistant Practice Exam

In a malocclusion II division I, what characterizes the anterior teeth?

1. They are crowding

2. They are protruded

3. They are rotated

4. They are spaced

The correct answer is: They are protruded

In a malocclusion II division I, the defining characteristic is that the anterior teeth are protruded. This type of malocclusion is indicated by the positioning of the maxillary central incisors, which are usually positioned forward in relation to the mandibular incisors. This overjet with protruded anterior teeth can make them appear more prominent in the smile line and may also influence the overall facial aesthetics and function. The presence of protruded teeth can lead to various dental complications, such as increased susceptibility to trauma or challenges in achieving optimal oral hygiene. The protrusion is often linked to the underlying skeletal discrepancies where the maxilla may be positioned relatively forward compared to the mandible. Crowding, rotation, or spacing of teeth generally characterize other forms of malocclusion or conditions unrelated to the specific traits found in a Division I case. Thus, the protrusion of anterior teeth serves as a critical component in diagnosing and planning treatment for this specific type of malocclusion.