Duke is the ultimate orthodontic unit; fully ambidextrous, it gives the possibility of working both from the front right and front left side of the patient, has an extra instrument table and ensures maximum hygiene and easy cleaning. Duke is combined with the Moon armchair, with backrest at 90° in the resting position. It was specifically designed for orthodontic applications, but can also be used for other types of treatments, as a confirmation of the specialisation and versatility of OMS units.