Not at all.
D.MATE series is located above the chest of the patient lying on the chair during treatment, so it is designed to be slim so as not to infringe on the space of the staff.
When using D.MATE series and sometimes bleeding (extraction, implant surgery, etc.) requires the assistance of the staff, the staff only needs to help briefly with HVE (metal suction).

If you look at the 46th video (video lecture on how to use) and 4th video (used for microscope treatment) among the dental lab YouTube videos,
You can see the staff assisting you comfortably while sitting or standing with D.MATE series.