Definition of face bow in US English:

face bow

noun

Dentistry
  • 1(In prosthetic dentistry) any of various devices, typically in the form of an adjustable metal frame extending between the temporomandibular joints, used to record the relationship of the teeth to the movement of the mandible.

  • 2(In orthodontics) any device used to attach appliances in the mouth to an anchorage (such as headgear) outside it.

Origin

Early 20th century; earliest use found in U.S. Patents.