GIC AND CAVITY LINER

• GLASS IONOMER & CAVITY LINERS

  
  

  1. The best polish afforded by cervical matrix

  a. carbide finishing burs

  b. polishing strips

  c. rotary finishing diamond unit

  d. finish and polish afforded by cervical matrix

  c. rotary finishing diamond unit
• 2. The following materials can be used to protect setting of glass ionomer cement except:

  a. Varnish

  b. Calcium hydroxide

  c. Light cured resin

  d. Cocoa butter

  a. Varnish
• 3. The following are advantages of glass ionomer cements except:

  a. Translucency of this material is esthetically acceptable

  B. Biocompatible with the pulp

  c. Free carboxyl ions of glass ionomer

  d. Slow setting time

  d. Slow setting time
• 4. Surface of deciduous incisors:

  Type III

  Type II.1-s

  Type II.2

  Type

  Type II.1-s
• 5. The following characteristics describe auto-cure glass ionomer cements except

  a. they have a prolonged setting reaction

  b. they remain subject to water loss and water uptake for at least 24 hours after placement

  c. they require immediate from the environment

  d. most auto cure cements are radiopaque

  c. they require immediate from the environment
• 6. Which of the following is not a component of glass ionomer cement?

  a. tartaric acid

  b. itaconic acid

  c. phosphoric acid

  d. fluoride

  c. phosphoric acid
• 7. Releases fluoride

  a. Reinforced ZOE

  b. Zinc phosphate

  c. Polycarboxylate

  d. Glass ionomer cements

  e. All of the above

  d. Glass ionomer cements
• 8. Minimize ingress of bacteria

  a. varnish

  b. calcium hydroxide

  c. both a and b

  d. neither a and b

  b. calcium hydroxide
• 9. Reduces post operative sensitivity

  a. varnish

  b. calcium hydroxide

  c. both a and b

  d. neither a nor b

  a. varnish
• 10. Used for direct pulp capping

  a. Varnish

  b. Calcium hydroxide

  c.Both A and B

  d. Neither A nor B

  b. Calcium hydroxide
• 11. The following is a contraindication for the use of glass ionomer cement

  a. Replacement of Class II amalgam restoration

  b. Pits and fissures

  c. Filling of proximal lesions of deciduous tooth

  d. Class V erosion

  a. Replacement of Class II amalgam restoration
• 14. After one week of restorative treatment, the patient came back complaining of pain on tooth #36 lasting for 2 hours and that she can't sleep already. What will you do?

  a. open the tooth, expose the pulp and apply analgesics directly to the pulp , then restore

  b. do root canal treatment

  c. repeat the restorative treatment

  d. perform extraction of the tooth

  b. do root canal treatment
• 15. Glass ionomer cements are preventive and conservative restorations because of

  a. fluoride content

  b. resistant to erosion to acid

  c. ability to adhere to tooth structure

  d. a and b

  e. a and c

  e. a and c
• 16. This technique wherein a glass ionomer cement is packed into the bottom of a cavity to replace lost dentin and allowed to set and harden. A composite filling material is then packed on top of the glass ionomer cement

  a. pit and fissure sealant

  b. sandwich or laminate technique

  c. fissure widening and filling

  d. tunnel preparation or internal fossa approach

  b. sandwich or laminate technique
• 17. A resin gum suspended in solution of chloroform

  A. Varnish

  b. Calcium hydroxide

  c. Both a and b

  d. Neither a and b

  A. Varnish
• 18. Porous

  a. varnish

  b. calcium hydroxide

  c. both a and b

  d. neither a nor b

  b. calcium hydroxide
• 19. Ideal mixing time of glass ionomer cement

  a. 40 seconds

  b. 2 minutes

  c. 10 seconds

  d. Minute

  a. 40 seconds
• 20. Case 1: a patient came to your clinic with a very deep carious lesion of tooth # 36 After cavity preparation, a 0.5mm accidental mechanical pulpal exposure was made. How will you manage this tooth? What is the second procedure?

  a. place amalgam

  b. place calcium hydroxide

  c. place composite

  d. place glass ionomer cement

  d. place glass ionomer cement
• Powder: zinc oxide + magnesium oxide + tribismuth oxide + silicone dioxide

  a. reinforced ZOE

  b. zinc phosphate

  c. polycarboxylate

  d. Glass ionomer cements

  e. All of the above

  b. zinc phosphate
• 22. Case 1: a patient came to your clinic with a very deep carious lesion on tooth #36, After cavity preparation, a 0.5mm accidental mechanical pulpal exposure was made. How will you manage this tooth? What is the first procedure that you are going to do?

  a. place calcium hydroxide on the pulp exposure area

  b. place eugenol on the pulp exposure area

  c. place glass ionomer base on the pulp exposure area

  d. place varnish on the pulp exposure area

  a. place calcium hydroxide on the pulp exposure area
• 23. 40-50% polyacrylic acid

  a. reinforced ZOE

  b. zinc phosphate

  c. polycarboxylate

  d. glass ionomer cements

  e. all of the above

  c. polycarboxylate
• 24. Glass ionomer cement material of choice for cavity lining or cavity base is

  a. type II.1

  b. type II. 2

  c. type III

  d. type I

  c. type III
• 25. Smear layer may be remove by applications of

  a. 10-25% of polyacrylic acid for 10-15 seconds

  b. slurry of fine pumice for 10 seconds

  c. light cured resin

  d. none of the above

  a. 10-25% of polyacrylic acid for 10-15 seconds
• 26. Has no compressive strength

  a. varnish

  b. calcium hydroxide

  c. both a and b

  d. neither a nor b


  c. both a and b
• 27. The base with a sedative effect on the pulp

  a. Reinforced ZOE

  b. Zinc phosphate

  c. Polycarboxylate

  d. Glass ionomer cements

  e. All of the above

  a. Reinforced ZOE
• 28. Mechanical insulator

  a. varnish

  b. calcium hydroxide

  c. both a and b

  d. neither a nor b

  d. neither a nor b
• 29. This type of glass ionomer cement is recommended for use when aesthetic considerations are not important but a rapid set and good physical properties are required

  
  

  Type III

  Type II.1

  Type II. 2

  Type I

  Type II. 2
• 30. sterilize residual carious dentin

  a. varnish

  b. calcium hydroxide

  c. both a and b

  d. neither a nor b

  
  

  c. both a and b
• 31. Powder component of glass ionomer cement is

  a. calcium aluminosilicate glass

  b. quartz

  c. zinc phosphate

  d. polyacrylic acid

  a. calcium aluminosilicate glass
• 32. Setting of glass ionomer cement/setting time of glass ionomer cement

  a. 8-10 minutes

  b. 3-5 minutes

  c. 1-2 minutes

  d. 12-15 minutes

  b. 3-5 minutes
• 33. Alkyl salicylate + filler

  a. Varnish

  b. Calcium Hydroxide

  c. Both A and B

  d. Neither A nor B

  b. Calcium Hydroxide