Section III: Ergonomics For Electrology

Surgical magnification 

Decreases neck, back, and shoulder problems

Chair position in which the seat pan is adjacent to the midpoint of the head to the fibula with arms resting by your side is ideal

True or False

True

Higher magnification is better than lower magnification 

False

Higher magnification reduces the depth of field and has a smaller field of view

True

Working distance is the distance between the clinician's eye and the working site. True or false

True

Where should the clinician's legs be located during treatment to relieve the clinicians from having to twist their torso? 

Directly under the patient's chair

Which positions factors with increased risk of musculoskeletal symptoms (MSSs) for dentists? Select all that apply. 

Tipped shoulders & Torso twist