Orthodontics: Appliances and Assisting · CDA

Which appliance is primarily used to hold space in the dental arch for permanent teeth after premature loss of a deciduous tooth?

  1. Twin-block appliance
  2. Fixed lingual retainer
  3. Space maintainer (e.g., lingual arch)
  4. Headgear
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Correct answer: Space maintainer (e.g., lingual arch)

Space maintainers, such as a lower lingual arch, preserve the arch length after early loss of baby teeth, preventing shifting of adjacent teeth and allowing proper eruption of permanent teeth.

Difficulty: Medium Question 7 of 19

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