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What are the key design components of a Hawley retainer?

The Hawley retainer consists of three primary components:

  • Custom-fitted acrylic base plate made from medical-grade PMMA that conforms to the palatal contours
  • Labial bow wire (typically .032" stainless steel) that spans the anterior teeth with adjustment loops near the canines
  • Retention clasps such as Adams clasps, ball clasps, or C-clasps that secure the appliance to posterior teeth.

This design allows for both stability and adjustability throughout the retention period.