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Executive | Lab Tech Talk

Lower Hawley Retainer with Rests

Category:

Appliance Purpose / Function:

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

Appliance Components

  • Acrylic Arch
  • Labial bow with adjustment loops anchored in the acrylic arch
  • Occlusal Rests

Suggested Materials

  • Wire: Chromium Cobalt wire or Stainless-Steel

Options:

  • May be fabricated 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 lingual wire is formed about 1mm o the tissue of the tissue to provide clearance for acrylic
  • The wire is formed about 1mm o the tissue on the lingual to provide clearance for acrylic
  • The occlusal rests lie in the buccal groove of the lower 1st permanent molars