The basic dental unit designs available today include all of the following EXCEPT:
The style of unit that requires the dental operator to retrieve and replace the handpieces which, in turn, forces the shift of vision from the treatment site, twists the upper body to turn to grasp the wanted instrument, and then refocus the eyes back on the operative field is:
When using any unit, the handpieces and instruments should be positioned within a __________ inch radius of the assistant’s hand.
The style of delivery unit in which the assistant can only use the HVE and the air/water syringe that are attached to the mobile cabinet with the transfer of handpieces or change of burs made impossible is:
The transthorax style of delivery is designed for the most effective practice of four‑handed dentistry because _______________.
In selecting a dental patient chair, it should have all of the following characteristics EXCEPT:
The questions to include when evaluating dental stools are all of the following EXCEPT:
When inappropriate equipment is purchased, it is not likely to result in undue stress when used over a period of time.
Questions to ask when considering a dental unit delivery system include all of the following EXCEPT:
Cuspidors interfere with the application of true four‑handed dentistry and the location of the dental assistant’s stool.
When a mobile cabinet is used with the rear delivery unit concept, it may interfere with access to the sink or to the HVE and air/water syringe. For the assistant, this can provide undue stress and strain and increase access for improved productivity.
Ideal four‑handed dentistry requires that appropriate techniques be followed for seating the patient and operating team, instrument transfer, oral evacuation, and infection control.
Which instrument should be placed on a dental unit closest to the assistant?
Which dental light position eliminates the least amount of adjustments?
A dental operating light should provide all of the following EXCEPT: