Orthodontic and Periodontal Materials · CDA

Nickel-titanium coil springs are used in orthodontics to:

  1. Increase bracket bond strength
  2. Open or close spaces with light force
  3. Hold retainers firmly in place
  4. Preform the initial archwire
Show answer and explanation

Correct answer: Open or close spaces with light force

NiTi coil springs provide flexible, continuous force, useful in opening or closing spaces. They are versatile components in orthodontic mechanics.

Difficulty: Medium Question 17 of 20

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