Chlorhexidine gluconate rinse is effective in the reduction of caries-causing bacteria along with the pathogens associated with periodontal disease.  Chlorhexidine gluconate is a broad-spectrum antibacterial agent. 

When the sharpening stone is correctly applied to a sickle  or curet  just before activation, which of the following describes the angle formed by the stone to the face of the blade?  

The cutting edge of scaling instruments dull with use.  Dull cutting edges are less effective in removing deposits than sharp cutting edges. 

Assessing the client’s culture specific information is a necessary component of the dental hygiene process of care.  Clients from other cultures embrace Western culture and its healthcare system.  

All the following are correct techniques for use of an ultrasonic scaler EXCEPT:

When sharpening the lateral sides of a sickle scaler using an instrument stable technique: 

The probing depth of the facial aspect of a maxillary first molar is 2 mm.  The tooth has 3 mm of tissue recession on the facial. What is the clinical attachment level of the facial of this tooth?

Measures focused on the prevention of root caries for the elderly include: 

Martha is unable to remove calculus deposits from the maxillary right posterior sextant.  The medium-size deposits are located 3mm beneath the gingival margin and Martha is using her universal curet.  She is beginning to wonder if the cutting edges on the universal curet are dull.  How can she evaluate the sharpness of the instrument? 

All of the following are true of sharpened instruments, EXCEPT one.  Which is the EXCEPTION?