The physiology and pathology of the stomatognathic system in general and occlusion more specifically define the guidelines for articulating maxillary and mandibular arches in order to fabricate prostheses which fit the occlusion and function of the patient. Important concern of both the dentist and the technician is to ensure the articulation of casts (analog or digital) on articulators set as accurately as possible to match the position of the maxilla and the motion of the mandible of the actual patient. 

During this presentation we will discuss the importance of detailed and accurate registrations (both static and dynamic) in order to accurately position casts on the articulator on which our prosthesis will be fabricated. Moreover, we will demonstrate step by step the treatment protocols, techniques and instrumentations (during the analog and the digital workflow) in order to achieve accurate simulation of the actual function of the patient on the working environment of the dental laboratory. Finally, we will present instruments like the analog or digital face bows, face scans and jaw motion tracking devices that are contemporary means that make easier and more accurate than ever before our diagnosis, treatment plan and communication with the dental lab. Modern applications of the three-dimensional (3D) imaging and the dynamic four-dimensional (4D) recording and analysis of our patients and their actual movements (chewing, speaking, swallowing) allow us to create the most advanced and accurate articulator up to now, the Human Articulator.