American Board of Orthodontics (ABO) 2026 – 400 Free Practice Questions to Pass the Exam

The assertion that orthodontics, headgear, and extractions do not cause obstructive sleep apnea (OSA) is based on the understanding of the etiology and contributing factors of the condition. OSA is primarily linked to anatomical factors that obstruct the upper airway during sleep, such as excess soft tissue, large tonsils, or anatomical variations in craniofacial structure, rather than directly resulting from orthodontic treatment or appliances.

Orthodontic treatments aim to align teeth and improve occlusion, which can lead to better overall oral function and potentially enhanced airway space over time. In fact, well-planned orthodontic treatment may alleviate factors that contribute to OSA by correcting dental and skeletal relationships, making it less likely to worsen or cause OSA.

Headgear, used for correcting molar position or guiding jaw growth, does not interfere with the airway in a way that would cause OSA. Extractions are sometimes necessary in orthodontic treatment to create space for teeth alignment and are not inherently responsible for OSA. In some cases, therapeutic extractions might even improve airway dimensions.

Understanding these principles clarifies that while orthodontic methods directly influence the dental and skeletal framework, they do not inherently cause obstructive sleep apnea, aligning with the conclusion that the answer