DANB General Chairside Practice Test

How should a properly positioned dental assistant be seated relative to the dentist?

1. A) At chin level

2. B) 6-8 inches above the dentist

3. C) 4-6 inches above the dentist

4. D) Level with the dentist's knees

The correct answer is: C) 4-6 inches above the dentist

A properly positioned dental assistant should be seated 4-6 inches above the dentist. This positioning allows the assistant to have a clear and unobstructed view of the treatment area while being at an appropriate height to provide necessary instruments and support to the dentist efficiently. Being elevated enables the assistant to easily reach over the patient to hand tools or materials without straining, which contributes to a smoother workflow during procedures. Sitting at this height also helps with ergonomics, reducing the risk of physical strain or injury for both the dental assistant and the dentist. It promotes an effective range of motion, allowing the assistant to pivot and adjust as needed while maintaining comfort and efficiency. In contrast, being at chin level would likely hinder the assistant's ability to effectively assist, as it may disrupt sight lines and limit movement. Being 6-8 inches above the dentist could lead to the assistant being too elevated, making it difficult to engage properly without leaning over improperly or creating awkward angles. Finally, sitting level with the dentist's knees places the assistant too low to function effectively in most situations, as it would restrict the ability to reach necessary tools and maintain a proper overview of the procedure.