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

Options:

• Laser welded (removes the solder)

• 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

All information is from www.leolabusa.com