RT245 Lower Hawley Retainer with Occlusal Rests

Appliance Purpose / Function:
The primary function of the Lower Hawley Retainer with occusal rests 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
• Occusal Rests

Suggested Materials:

• Wire: Chromium Cobalt wire

Options:

• 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 wire is formed about 1mm off the tissue on the lingual to provide
  clearance for acrylic
• The occlusal rests lie in the buccal groove of the lower first permanant
  molars

All information is from www.leolabusa.com