Dental Materials Test 3 (Ch.44)

During a dental procedure, a dental assistant uses a high-velocity evacuator to remove the oral fluids so that the dental material does not traumatize oral soft tissues in the mouth. Which material is being applied by the assistant in this procedure?

• Dental liner

• Desensitizer

• Dental Varnish

• Dental etchant

which stimuli can stimulate pulpal nerve endings and produe pain?

• Electrical

• Thermal

• Mechanical

• Chemical

• All of the obove

Example of biological pulpal stimuli?

• Dental misalignment

• Bacterial infection of the pulp

• pulp exposure to acidic substance

• pulp exposure to cold substance

What are the uses of a dental liner? Select all that apply!

• Seals dentinal tubules

• Reduces microleakage

• Prevents tooth sensitivity

• Provides dentin regeneration

• prevents pulp irritation

Dycal Liner is placed on which surface of a tooth during restoration?

• Deepest dentin

• Restoration surface

• Highest dentin

• Middle dentin

The use of which restorative material frequently combines the placement of a desensitizer even in a cavity preparation

• Calcium hydroxide

• Amalgam

• phosphoric acid

• Don´t click here

What is the usual range of time for adequate etching of a tooth surface?

• 15-60 seconds

• 0-5 seconds

• 60 seconds

• 40-110 seconds

In all states it is legal for the expanded- functions dental assistant to apply etchant and place bonding material.

• TRUE

• FALSE

Why should a dentist use a dental dam before initiating the etching process?

• To avoid saliva contamination

• Because it would be dumb not to

• To contract the hypothyroid

• To Photosynthesis

What can be used under allll types of restorative materials?

• Callllcium hydroxide

• Phosphoric acid

• Resin-bonded veneers

• polycarboxylate