The optic electronic face bow is a type of kinematic face bow. Face bows are devices that help us transfer information about the position of the upper and lower jaw in relation to the temporomandibular joint, while also registering movements of the masticatory system. A characteristic of these face bows is its way of working based on optical triangulation, which means that it registers jaw positioning and movements through a sensory system consisting of LED lights and cameras. A precise replica of the patient's masticatory system is essential in dental prosthetics for the creation of prosthetic work that will not disturb the patient's static or dynamic occlusion. It is an indispensable part in detecting the pathology of the masticatory system and setting up a proper therapy plan. Kinematic face bows are used to individualize fully adjustable articulators. After the device is mounted onto the patients head, we can begin with documenting the movements. Movements performed by the lower jaw are registered using transmitters and sensors integrated in the upper and lower part of the face bow. This data is then sent and processed in the computer program that later provides a graphic representation of the movement together with a 3D model of the patient's masticatory system. The lower jaw is the only movable part of the skull. A system of masticatory muscles, ligaments and the temporomandibular joint connect the mandible to the rest of the skull and face. Thanks to its unique anatomy, the lower jaw has the ability to move in six degrees of freedom (opening, closing, moving left and right and forward and backward), which means that the recreation of these movements in the articulator is incredibly demanding. Thanks to the technology of kinematic face bows (especially the newer optical electronic ones) and virtual articulators, it is very easy and fast to obtain accurate representations of the patient's real clinical situation and, based on this, create precise prosthetic works or plans for oral rehabilitation.