RT135 Lower Hawley Retainer with no Clasps
Appliance Purpose / Function:
The primary function of the Hawley Retainer with no 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
- 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)
- Solder: Silver Solder (Cadmium Free)
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 acrylic is trimmed to conform closely to the teeth including theinterproximal areas.
All information is from www.leolabusa.com