CASE STUDY #3:  You are a new dental hygiene student who is…

CASE STUDY #3:  You are a new dental hygiene student who is concerned with maintaining proper ergonomics and grasp to avoid to avoid repetitive stress injuries that can result in a musculoskeletal disorder.  You have been practicing your grasp and positioning, as well as your patient positioning to achieve neutral positioning.  Use this information to answer the following questions. QUESTION: Which finger is placed on the tooth structure for stability when using an instrument?