Orthodontics: Appliances and Assisting · CDA

Which appliance is used to maintain tooth position once orthodontic treatment is complete?

  1. Forsus spring
  2. Fixed lingual retainer or removable retainer
  3. Headgear
  4. Palatal expander
Show answer and explanation

Correct answer: Fixed lingual retainer or removable retainer

Retainers — whether bonded (fixed) on the tongue-side of anterior teeth or removable — prevent relapse by stabilizing teeth after movement.

Difficulty: Medium Question 3 of 19

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