The purpose of a face bow is to register the relationship of the patient's maxillary arch in three planes of space and transfer this information into an articulator that can be adjusted to simulate the patient's jaw movements (Figure 1 and Figure 2).

What is the point of a Facebow?

A facebow is an instrument that records the relationship of the maxilla to the hinge axis of rotation of the mandible. It allows a maxillary cast to be placed in an equivalent relationship on the articulator (Fig. 9-3).

Is a Facebow necessary?

Practical implications: Patients expect their physicians and dentists to perform only treatment procedures that are essential. The findings of this study show that the face bow transfer treatment procedure is not absolutely necessary to mount dental models on an articulator.