What angle should be maintained for a working stroke with a sickle scaler?

The patient presents with posterior composites on two maxillary molars. Jim wants to chart a posterior composite on teeth numbers 3 and 14.  He should do which of the following?  Check all that apply.

When sharpening the anterior sickle, the terminal shank should be placed perpendicular with the floor, or at 12:00.

The Shepard’s hook explorer is designed:

Which of the following strokes is appropriate to use with the probe?

Which best describes the dental occlusion in this photo?

Repeated withdrawal and reinsertion of the probe can contribute to unnecessary trauma.  Staying in the pocket allows for accurate assessment by covering all the surfaces.

With the modified pen grasp, during an exploratory stroke the finger that is most sensitive to the vibrations emitted from the working end of an instrument is the:

True or False:Percutaneous injuries are among the most efficient modes of HBV transmission.

Where should a student go for blood testing after an exposure incident?