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Orthodontics · single question

A Hawley retainer (removable orthodontic appliance) does all of the following EXCEPT:

  1. Can be removed for cleaning
  2. Allows minor tooth movement with adjustment
  3. Impairs the patient's oral hygiene
  4. Retains tooth positions after orthodontic treatment
Show answer and explanation

Correct answer: C. Impairs the patient's oral hygiene

  • A. Incorrect — this IS a characteristic. Removability is a key advantage.
  • B. Incorrect — this IS possible. The labial bow can be activated to perform minor tooth movement.
  • C. Correct — imparing oral hygiene is NOT a characteristic of a Hawley retainer. It is REMOVABLE — patients remove it to eat and brush. This FACILITATES oral hygiene. (Fixed retainers are the ones that can impair cleaning, not removable Hawley retainers.)
  • D. Incorrect — this IS a function. Retention of corrected positions is its primary purpose.

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