TMJ Dysfunction Following Use of SAD

The aim of this study is to assess how the use of a breathing tube (Supraglottic Airway Device) can affect the function of the jaw joint (Temporomandibular joint) movement. This type of breathing tube is used for nearly 60% of general anaesthetics. To facilitate insertion of this breathing tube, assisted mouth opening and forward movement of the jaw are required. These movements occur at the jaw joint (temporomandibular joint). In addition, for the duration of the operation the mouth is kept slightly open by a breathing tube. There are a few case reports in the literature suggesting minor effect on the jaw joint. Therefore, we wish to study this further by evaluating the function of the jaw joint, 4 to 24 hours after the operation.