California Registered Dental Assistant (RDA) Written Practice Exam

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What type of orthodontics involves using a fixed or removable appliance applied to a crossbite?

  1. Preventive

  2. Interceptive

  3. Corrective

  4. Cosmetic

The correct answer is: Interceptive

Orthodontics is a type of dental treatment that focuses on correcting irregularities in the alignment of teeth and jaws. One common orthodontic issue is a crossbite, where a tooth or group of teeth are positioned behind or in front of their opposing teeth. There are various types of orthodontics, some of which are listed as choices in the question. Option A, preventive orthodontics, focuses on early intervention and preventing the development of orthodontic problems. While this may help address a crossbite, it is not a specific type of treatment for this issue. Option C, corrective orthodontics, refers to the treatment of existing orthodontic problems. This is a broad term and can encompass a variety of treatments, but it is not specific to the use of fixed or removable appliances on a crossbite. Option D, cosmetic orthodontics, involves orthodont

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