In contrast to single-sided mouth gags, the notorious problems of double-sided mouth gags are the size and difficulty in positioning [ 3]. Louis physician John Ellis Jennings (1863-1935) introduced a new tonsillectome (an instrument for removing tonsils) in 1913; in that article he does not mention the use of any mouth gag.

a The pivotal mounted pads allow adapting to the surface of the teeth or alveolus of the jaw, b The central hole in the pads let the cusp of the teeth to slide in and to be straight held in slight movements of the jaw or the instrument in use.

centimeters; Both bars, and both handles, are marked on the interior with the number: “25”; The lower handle is also marked with the logo, consisting of a circle enclosing the letter “J” superimposed on the letter “S”.

Department of Oral and Maxillofacial Surgery, Tuebingen University Hospital, University of Tuebingen, Osianderstr. The Jennings Dental Retractor (or Mouth Gag), while rarely used in clinical settings nowadays, remains a powerfully evocative and extremely effective medical fetish instrument.

In later times, mouth gags were used in medical situation to open the patients mouth for examination, insertion of instruments, administration of feeding or dental care. The stable and fixed position contributes a straight and undisturbed work flow during the surgical procedure.