Design and fabrication of automatic orthognathic surgery articulator

Rafighi M., Güllü A.

1. Uluslararası Mühendislik Bilimleri ve Multidisipliner Yaklaşımlar Kongresi, Ankara, Turkey, 23 - 24 February 2021, pp.1

  • Publication Type: Conference Paper / Summary Text
  • City: Ankara
  • Country: Turkey
  • Page Numbers: pp.1


Articulator is a mechanical device that is commonly used in dentistry to determine the position of the lower (mandibular) and upper (maxillary) jaws. Besides, it is also used to correct the shape and relationship disorders of the jaws in orthognathic surgery. The position of the lower or upper jaws is changed relative to the skull base in this surgery. Therefore, in patients who are going under orthognathic surgery, the dimension of the lower and upper jaw is measured before the surgery and the jaw models are determined with the closing wax, then these models are fixed to the articulator by using the cast. Next, the jaws that are fixed to the articulator are released by cutting the cast, planned adjustments being applied, and then the jaws are fixed back to the articulator. Since these processes are performed manually and also by observation, some errors can be occurred during transferring of the position of the jaws. In this study, a computer-aided automatic articulator was designed and manufactured. Thanks to this device, there is no need to cut and reattach the cast in the automatic articulator. Besides, the duration of pre-surgery processes is significantly decreased and the operation precision is increased. Since this device is multi-axis, the surgeon can bring the maxillary and mandibular to the desired reasonable position in orthognathic surgery. Finally, the movements of the jaw models can be recorded to use in the next possible operations.