A kinematic face bow is used for what purpose?

A kinematic face bow is primarily used for locating the hinge movement axis of the mandible in relation to the maxilla. This tool is designed to help clinicians accurately record the relationship between the upper and lower jaws, specifically at the points where the jaws rotate during movement, known as the hinge axis.

Understanding the hinge axis is crucial for dental professionals when constructing dental appliances and ensuring that they function harmoniously with the patient’s natural jaw movements. By accurately capturing this data, the kinematic face bow allows for better alignment and adjustment of dental prosthetics or orthodontic devices, influencing treatment outcomes positively.

While it may also play a role in aspects such as measuring the dental arches, determining occlusal relationships, or assessing the vertical dimension, its primary function remains focused on the hinge axis, thereby informing further procedures and ensuring precision in treatment planning.