The best replacement for headgear is herbst.

The best alternatives to headgear are rated as following:
★★★★★  herbst
★★★  rubber bands
★★  herbst appliance
★  headgear
★  functional appliance
★  forsus
  bionator
  head gear

Your alternative for headgear is not listed? Suggest!
Speaking about headgear, one probably shouldn't forget about braces.

Other search terms related to headgear and their ratings are:
★★★★★ braces
★★★ face shield
★ circlets and masks
★ mask
face mask
twin block
You have in mind a companion for headgear and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of headgear in all years. Click on graph for more.
headgear
herbst
rubber bands