American Board of Orthodontics (ABO) Practice Exam

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Question: 1 / 50

Is it true that a thin alveolus of the mandibular incisors is uncommon in patients with low SN-MP?

True

In orthodontics, the relationship between the skeletal morphology and the alveolar bone structure is critical for understanding dental positioning and potential treatment outcomes. When considering the alveolus of the mandibular incisors, a thin alveolus is generally associated with vertical growth patterns. Patients with a low SN-MP angle, which indicates a more horizontal facial growth pattern, typically have thicker alveolar bone around the mandibular incisors. This is due to the fact that a low SN-MP is often correlated with less vertical growth and reduced anterior facial height, leading to denser alveolar bone. Hence, it is uncommon to find a thin alveolus in such patients. Understanding bone morphology is vital for treatment planning in orthodontics, as thin alveolar bone can complicate tooth movement and increase the risk of complications. Recognizing that a low SN-MP is associated with a thicker alveolar bone structure reinforces the importance of skeletal parameters in the evaluation of orthodontic cases.

False

Only in some patients

Depends on other factors

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