American Board of Orthodontics (ABO) Practice Exam

Cornstarch powder is known to facilitate the dispersion of latex allergens through the air due to its fine particles that can easily become airborne. When cornstarch is used as a powder in conjunction with latex gloves, it can become aerosolized, allowing latex proteins to be released into the environment. This is a significant concern in healthcare settings where latex gloves are commonly used, as inhalation of these allergens can lead to allergic reactions in sensitive individuals.

In contrast, while powdered latex itself can contain allergens, it's typically not used to facilitate dispersion actively; rather, it might simply contribute to the overall presence of allergens. Alcohol can disinfect surfaces and materials but does not play a role in dispersing latex allergen particles. Chalk does not have the characteristics that promote the airborne movement of allergens. The unique properties of cornstarch make it particularly effective in this regard, highlighting its impact on allergen exposure in various environments.