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RT120 Hawley Retainer with Soldered “C” Clasps

Appliance Purpose / Function:
The primary function of the Hawley Retainer with soldered “C” clasps is to provide retention of the anterior teeth. Retention is provided by a labial 3 x 3 labial bow and is generally encased in acrylic which is formed to hold the teeth in their corrected positions.

Appliance Components:

  • Acrylic Arch
  • .030 Labial bow with adjustment loops anchored in the acrylic arch
  • Soldered circumferential clasps on first bicuspids
  • 2 x 2 area of the labial bow is covered in acrylic that is formed to the facial surfaces of the teeth

Suggested Materials:

  • Wire: Chromium Cobalt wire


  • Laser welded (removes the solder)
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 first bicuspid
  • The wire is in intimate contact with the teeth in the interproximal area as it crosses the occlusion
  • The lingual wire is formed about 1mm off the tissue of the tissue to provide clearance for acrylic
  • The “C” clasp is formed to sit below the height of contour on the first bicuspid
  • The “C” clasp is maintains intimate contact with the tooth on the buccal surface of the first bicuspid
  • The wire is formed about 1mm off the tissue on the lingual to provide clearance for acrylic


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