Rear Wall Delivery
Rear wall delivery, or 12 o’clock delivery, places both the Doctor’s and Assistant’s instruments at the rear of the room. Having one utility location simplifies plumbing and may reduce installation costs. For ergonomic consideration, it places the instruments conveniently in front of the assistant to transfer to the Doctor. However, this does require the dentist to more fully utilize the dental assistant and requires a more experienced and adept assistant. Ideal for patient experience as instruments are out of view. Can work well in narrow but longer rooms.
Recommended Room Size: 9’ – 12’ wide by 10’ – 12’ deep.
- Handpieces out of direct view of the patient
- Doesn’t interfere with microscope positioning
- Instrumentation is easily accessible to assistant
- Easy access for patient entry/egress to chair
- No junction box or umbilicals around base of chair
- Can be used in a narrow room
- Requires additional hand-to-hand operational movements to reach instruments. (This can be alleviated if assistant transfers handpieces to dentist.)
- Requires longer handpiece tubing
- Requires longer treatment room
Over-The-Patient/Chair Mounted Delivery
The Over-The-Patient chair mounted unit design has been around for over fifty years and typically this delivery method is promoted by manufacturers as a package with a chair. It is not recommended for current treatment room designs because of the outdated look and negative patient experience it creates. There are several major drawbacks to over-the-patient style. The possibility of decreased patient comfort coupled with raised patient anxiety occurs. Interference with microscope positioning is another potential problem. Additionally, size and weight constraints for the mechanical arms may limit the integration of new technologies.
Recommended Room Size: 8’ – 12’ wide by 9’ – 12’ deep.