A Right-Handed Clinician Is Working on the Buccal Aspect of Tooth

question 4

Multiple Choice

A right-handed clinician is working on the buccal aspect of tooth #2. (For a left-handed clinician, this area would be equivalent to the buccal aspect of tooth #15.) The clinician is using a Gracey 13/14 curet and retracting the client's cheek with a mouth mirror. The clinician's neck is bent excessively as she works. What correction should the clinician make for more ergonomic positioning?

• A)Ask the client to turn her head slightly away from the clinician
• B)Turn the mirror head so that the reflecting surface can be used to view the distal surface
• C)Ask the client to turn toward the clinician and lower her chin down toward her chest (chin-down position)
• D)Raise the client's chair up to bring the working area level with the clinician's eye level

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Definitions:

C≡C Stretch

A vibrational motion observed in IR spectroscopy, characteristic of the carbon-carbon triple bond stretching.

C≡N Stretch

A spectroscopic term referring to the absorption frequency characteristic of the triple bond between carbon and nitrogen atoms in nitriles, observable in infrared or Raman spectra.

IR Band

A specific frequency range within an infrared spectroscopy spectrum that corresponds to the vibration of molecular bonds, used for chemical identification.

IR Absorption

The process where a molecule absorbs infrared radiation, raising its energy level in relation to its vibrational modes.