A face-bow is a dental instrument used in the field of Prosthodontics. Its purpose is to transfer functional and aesthetic components from patient's mouth to the dental articulator. Specifically, it transfers the relationship of maxillary arch and temporomandibular joint to the casts. It records the upper model's (maxilla) relationship to the External Acoustic Meatus, in the hinge axis. It aids in mounting maxillary cast on the articulator.
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