Utility or heavy duty poly nitrile gloves are used for which of the following procedures?

Which type of Hepatitis is present only when the person has hepatitis B also? 

Which of the following is a concern for clients who have limited English profieciency?

Subgingival biofilm includes more predominantly gram-negative anaerobic and motile organisms of periodontal disease.

After all external material has been removed from tooth surfaces, the acquired pellicle forms _________.

Which of the following is a disadvantage of a chemical vapor sterilizer?

When should he face mask be changed? 

Which of the following is not a characteristic of a gown or uniform worn in the dental office? 

Pre-procedural rinsing and other oral hygiene measures help to prevent the spread of communicable diseases.  Pre-procedural rinsing and other oral hygiene measures decrease the number of microorganisms in the oral cavity.

Which of the following is the BEST recommendation for preparation of disinfectants?