FREE AND STUDY GAMES ABOUT CHAPTER 46 QUIZ EXAM

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FREE AND STUDY GAMES ABOUT CHAPTER 46 QUIZ EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -45 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Which material is the most durable for occlusal bite registrations?

Answer:

Zinc oxide-eugenol (ZOE) Question 2: Which instructions would be given to a patient obtaining a bite registration?

Answer:

Close normally and gently.Question 3: Which impression material is used when an extremely accurate final impression is essential?

Answer:

Elastomeric

Question 4: Where should alginate and elastomer impressions be disinfected?

Answer:

Before leaving the treatment area

Question 5: The shelf life of alginate material is approximately __ months.

Answer:

12

Question 6: How is an alginate impression disinfected?

Answer:

Spray the alginate with an intermediate-level disinfectant.Question 7: Which of the following classifications of impression materials can also be referred to as (bite) registration?

Answer:

Occlusal

Question 8: What are preliminary impressions used to make?

Answer:

Diagnostic models Provisional coverage Orthodontic appliances All of the above Question 9: Which portion of the maxillary impression tray should be seated in the mouth first?

Answer:

Posterior

Question 10: How are elastomeric impression materials mixed?

Answer:

With a paper pad and spatula With an Automix system Question 11: What term is used when an alginate impression takes up water either from soaking or wrapping in a wet paper towel?

Answer:

Imbibition

Question 12: How should alginate material be loaded into a maxillary impression tray?

Answer:

Heavier in the anterior and labial areas Question 13: Which of the four types of elastomeric materials has the best dimensional stability?

Answer:

Polysiloxane Question 14: Which of the following is utilized to extend the length or depth of the borders of an alginate impression tray?

Answer:

Utility wax Question 15: Which of the following is not correct regarding reversible hydrocolloids?

Answer:

The material is 85% agar and 15% water.Question 16: Which of the following is an acceptable method for altering the setting time of alginate irreversible hydrocolloid impression material?

Answer:

Change the water temperature.

Question 17: How will a water temperature of 80° F (26.6°

• affect an alginate mix?

Answer:

It will make the mix set faster.

Question 18: Why would a dentist request preliminary impressions?

Answer:

To fabricate custom trays Question 19: An impression is a positive reproduction of teeth and surrounding oral tissues.The model created from the impression is a negative reproduction of the structures.

Answer:

Neither statement is correct

Question 20: Which material should be used if a more durable impression material is needed for bite registration?

Answer:

Zinc oxide-eugenol (ZOE) Question 21: Which type of impression is taken to produce a reproduction of the occlusal relationship of the maxilla and mandible teeth when in centric occlusion?

Answer:

Bite registration Question 22: Which type of reversible hydrocolloid material is the most viscous?

Answer:

Tray Question 23: Elastomeric materials use an Automix system. The extruder gun insert is a dual cartridge with a tube of catalyst and a tube of base.

Answer:

Both statements are correct.Question 24: What is the working time of normal-set alginate impression material?

Answer:

• minutes

Question 25: Which type of elastomeric material has the highest viscosity?

Answer:

Putty Question 26: Which listed criteria would not be acceptable on an alginate impression?

Answer:

Void of frena and tuberosities Question 27: Impression trays are rigid for all of the following reasons except to

Answer:

warp the completed impression