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Executive | Lab Tech Talk

Hawley Retainer with Ball Clasps

Category:

Appliance Purpose / Function:

The primary function of the Hawley Retainer with ball clasps is to provide retention of the anterior teeth. Retention is provided by a labial 3 x 3 labial bow.

Appliance Components:

  • Acrylic Arch
  • .032 Labial bow with adjustment loops anchored in the acrylic arch
  • Ball clasps between 2nd bicuspids and 1st molars

Suggested Materials:

  • Wire: Chromium Cobalt or Stainless-Steel wire

Options:

  • May be made with facial acrylic

Appliance Fabrication Standards:

  • Labial bow is formed from 3 x 3
  • The adjustment loops begin just distal to the mid point on the facial of the cuspid
  • The loop ends at the interproximal of the cuspid and the 1st bicuspid
  • The wire is in intimate contact with the teeth in the interproximal area as it crosses the occlusion
  • The ball on the ball clasp to close to the gingiva in the interproximal area between the 2nd bicuspids and 1st molars
  • The ball clasp lays in intimate contact in the interproximal area as the wire crosses the occlusion
  • The palatal wires are formed about 1mm off the tissue to provide clearance for acrylic