Chapters Restorative And Esthetic Dental Materials.

78 Questions | Total Attempts: 240

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Dental Quizzes & Trivia

The demand for aesthetic in dentistry has created a variety of restorative materials meant for dental restoration. Ceramic restorations for instance are so natural looking and the dentists need to carefully evaluate what they observe in a patients mouth. Take up the quiz on chapters restorative and esthetic dental materials to learn more.


Questions and Answers
  • 1. 
    One of the most common restorative materials in dentistry is composite.
    • A. 

      True

    • B. 

      False

  • 2. 
    Direct restorations include amalgam and gold crowns.
    • A. 

      True

    • B. 

      False

  • 3. 
    Composite resins are stronger than amalgam or gold.
    • A. 

      True

    • B. 

      False

  • 4. 
    Polymerization is the process in which the resin material is changed from a pliable state into a hardened restoration.
    • A. 

      True

    • B. 

      False

  • 5. 
    Macrofilled composites contain the smallest filler particles providing the least strength.
    • A. 

      True

    • B. 

      False

  • 6. 
    One reason temporary restorations are used is to maintain the function and esthetics of a tooth until a permanent restoration can be placed.
    • A. 

      True

    • B. 

      False

  • 7. 
    Common uses of Intermediate Restorative Material include restorative emergencies and restoration of primary teeth.
    • A. 

      True

    • B. 

      False

  • 8. 
    Indirect restorations materials include gold alloys and ceramic materials.
    • A. 

      True

    • B. 

      False

  • 9. 
    Porcelain material is chosen as a restorative material because the shading matches tooth color well.
    • A. 

      True

    • B. 

      False

  • 10. 
    For longer than 150 years, billions of dental amalgam fillings has been used to restore decayed teeth.
    • A. 

      True

    • B. 

      False

  • 11. 
    The types of supplemental materials selected by the dentist will determine how the tooth will be prepared.
    • A. 

      True

    • B. 

      False

  • 12. 
    Calcium hydroxide is NOT a bonding material.
    • A. 

      True

    • B. 

      False

  • 13. 
    The application of a varnish helps to seal the dentinal tubules.
    • A. 

      True

    • B. 

      False

  • 14. 
    Dental bases are used to provide pulpal protection in the following ways: Protective bases, insulating bases, and sedative bases.
    • A. 

      True

    • B. 

      False

  • 15. 
    With the use of bonding materials, it is now possible to bond restorative materials to enamel and dentin.
    • A. 

      True

    • B. 

      False

  • 16. 
    Acid etching is a technique in which acid is placed on either the enamel or gingiva to remove the smear layer in preparation for bonding.
    • A. 

      True

    • B. 

      False

  • 17. 
    An example of enamel bonding is a sealant or orthodontic bracket.
    • A. 

      True

    • B. 

      False

  • 18. 
    The mixing time for dental cements is the same no matter which materials you are using.
    • A. 

      True

    • B. 

      False

  • 19. 
    Glass ionomer cement MUST be mixed on a cool glass slab.
    • A. 

      True

    • B. 

      False

  • 20. 
    A porcelain casting is chosen over other castings because it
    • A. 

      Has higher strength.

    • B. 

      Has the ability to match natural tooth structure.

    • C. 

      Is a good insulator.

    • D. 

      All of the above.

  • 21. 
    ________ occurs when a metal restoration is touched by a fork.
    • A. 

      Microleakage

    • B. 

      Galvanic action

    • C. 

      Sheer stress

    • D. 

      Corrosion

  • 22. 
    A properly triturated amalgam mix should:
    • A. 

      Be a hard mass.

    • B. 

      Contain dry particles.

    • C. 

      Be a soft, pliable mass.

    • D. 

      Separate when packed.

  • 23. 
    • A. 

      More retention is cut into the prep for composite.

    • B. 

      Amalgam requires the use of a bonding system.

    • C. 

      Composites are more compatible with most dental materials used for bases.

    • D. 

      Composites require the use of a bonding system.

  • 24. 
    A liquid with high viscosity _____ flow easily and _____ effective in wetting a surface.
    • A. 

      Does; is

    • B. 

      Does; is not

    • C. 

      Does not; is

    • D. 

      Does not; is not

  • 25. 
    Glass ionomer can be used for class _____ restorations.
    • A. 

      II

    • B. 

      III

    • C. 

      IV

    • D. 

      V

  • 26. 
    Ideally, composite resin shades should be chosen in:
    • A. 

      Daylight.

    • B. 

      Normal ambient light.

    • C. 

      Bright light.

    • D. 

      Operatory light.

  • 27. 
    _____ is the process by which the resin material is changed from a pliable state into a hardened restoration.
    • A. 

      Trituration

    • B. 

      Retention

    • C. 

      Polymerization

    • D. 

      Galvanism

  • 28. 
    _____ is added to dental amalgam alloy powder to suppress oxidation.
    • A. 

      Silver

    • B. 

      Tin

    • C. 

      Copper

    • D. 

      Zinc

  • 29. 
    The addition of _______ alloy to glass ionomers produces a product that can be used for core buildups and the repair of fractured cusps and amalgam fillings as well as abutments for overdentures.
    • A. 

      Copper

    • B. 

      Silver-tin

    • C. 

      Gold

    • D. 

      Zinc

  • 30. 
    The curing process in which it is the most critical that the materials are mixed and placed within the working and setting times is with ________ materials.
    • A. 

      Auto-cured

    • B. 

      Light-cured

    • C. 

      Dual-cured

    • D. 

      None is more critical than another.

  • 31. 
    New dental materials must undergo strict evaluation by _____ before they can be marketed.
    • A. 

      FDA

    • B. 

      ADA

    • C. 

      MDA

    • D. 

      ADAA

  • 32. 
    The dental restorations created in the laboratory by the dental laboratory technician are classified as:
    • A. 

      Direct restorations.

    • B. 

      Indirect restorations.

    • C. 

      Provisional restorations.

    • D. 

      Amalgams

  • 33. 
    The resin matrix component of composite is dimethacrylate, a fluid-like material also referred to as:
    • A. 

      Quartz.

    • B. 

      Silica.

    • C. 

      IRM.

    • D. 

      BIS-GMA.

  • 34. 
    The term ‘restorative’ describes the ability to:     
    • A. 

      Remove disease.

    • B. 

      Restore function.

    • C. 

      Be esthetic.

    • D. 

      Both a and b.

  • 35. 
    The type of ceramic most often used in dentistry for castings is:
    • A. 

      Composite resin.

    • B. 

      Glass ionomer.

    • C. 

      Zinc oxide-eugenol cement.

    • D. 

      Porcelain.

  • 36. 
    Which is not true of nonmercury alloys?
    • A. 

      They are not sensitive to moisture.

    • B. 

      They are placed after a resin liner.

    • C. 

      They require the application of a sealant over the restoration.

    • D. 

      All of these are true.

  • 37. 
    Which of the following are advantages to using glass ionomer as a restorative material?
    • A. 

      Glass ionomer has the ability to bind to teeth mechanically, rather than chemically.

    • B. 

      Glass ionomer releases fluoride after their final setting.

    • C. 

      Loss of gloss indicates a proper mix of glass ionomer material.

    • D. 

      There is no need to avoid contact with water during the mixing procedure for glass ionomer.

  • 38. 
    Which will not influence the curing time of composite restorations?
    • A. 

      Manufacturer’s instructions

    • B. 

      The base used

    • C. 

      Thickness or size of restoration

    • D. 

      The shade of the restoration

  • 39. 
    Varnish should be placed on the ______ of the preparation.
    • A. 

      Walls

    • B. 

      Floor

    • C. 

      Margins

    • D. 

      All of the above

  • 40. 
    Etching for dental bonding is done with:
    • A. 

      Phosphoric acid.

    • B. 

      Ammonia.

    • C. 

      Isopropyl alcohol.

    • D. 

      Hydrogen peroxide.

  • 41. 
    A dental liner is placed:
    • A. 

      Along inside of cavity walls.

    • B. 

      Mesial and distal of the tooth.

    • C. 

      In the deepest area of the tooth preparation.

    • D. 

      Along the interproximal margin.

  • 42. 
    Calcium hydroxide:
    • A. 

      Cannot be placed under direct composite resins because it will inhibit polymerization.

    • B. 

      Stimulates the production of reparative dentin.

    • C. 

      Functions as a thick base to support extensive restorations.

    • D. 

      Consists of a resin in an organic solvent.

  • 43. 
    A desensitizer could be indicated for which of the following procedures?
    • A. 

      Amalgam

    • B. 

      Sealants

    • C. 

      Provisional coverage

    • D. 

      Fluoride

  • 44. 
    Bonding agents or adhesives:
    • A. 

      Can be light-cured.

    • B. 

      Must be used after etching.

    • C. 

      Are available as self-cured.

    • D. 

      All of the above.

  • 45. 
    Insulating base material should cover the entire _______ to a thickness of _____ mm.
    • A. 

      Cavity preparation; 1-2

    • B. 

      Pulpal floor; 1-2

    • C. 

      Cavity preparation; 2-3

    • D. 

      Pulpal floor; 3-4

  • 46. 
    Calcium hydroxide liner is a frequently used liner because it:
    • A. 

      Stimulates production of secondary dentin.

    • B. 

      Can be used with only composite resin material.

    • C. 

      Acts as a base as well as a liner.

    • D. 

      Does not require the use of a filling material.

  • 47. 
    Dental bonding is also referred to as a:
    • A. 

      Dental adhesion.

    • B. 

      Dental liner.

    • C. 

      Desensitizer.

    • D. 

      None of the above.

  • 48. 
    Etchant removes the _____ layer in preparation for bonding.
    • A. 

      Varnish

    • B. 

      Cavity liner

    • C. 

      Smear

    • D. 

      Sclerosing

  • 49. 
    If a varnish is used, it is always used before other materials.
    • A. 

      True

    • B. 

      False

  • 50. 
    • A. 

      Polycarboxylate cement

    • B. 

      ZOE

    • C. 

      Zinc phosphate cement

    • D. 

      Desensitizing materials

  • 51. 
    You are asked to select a base for a deep cavity preparation because of extensive decay. Which would you select?
    • A. 

      Zinc oxide eugenol

    • B. 

      Zinc phosphate

    • C. 

      Polycarboxylate

    • D. 

      Any of the bases

  • 52. 
    If decay has extended into or close to the pulp, which material(s) may be indicated?
    • A. 

      Liner/varnish

    • B. 

      Base/desensitizer

    • C. 

      Bonding agent

    • D. 

      Any or all of the products

  • 53. 
    Types of pulpal stimuli may be:
    • A. 

      Physical.

    • B. 

      Mechanical

    • C. 

      Chemical or biologic.

    • D. 

      All of the above

  • 54. 
    Which of the following is an example of biological pulpal stimuli?
    • A. 

      Changes from hot and cold coming into contact with the tooth

    • B. 

      Traumatic occlusion, which occurs when a persons bite does not occlude properly

    • C. 

      Acidic materials reaching pulpal tissues

    • D. 

      Bacteria from saliva coming into contact with pulpal tissues

  • 55. 
    Protective bases are placed when it is necessary to protect the pulp before the restoration is placed, because without this protection there may be:
    • A. 

      A premature contact on the restorative material.

    • B. 

      Occlusal trauma.

    • C. 

      Postoperative sensitivity and damage to the pulp.

    • D. 

      Premature loss of the restorative material.

  • 56. 
    Varnish should be placed:
    • A. 

      In one thick layer.

    • B. 

      In two light coats.

    • C. 

      Before a sedative base.

    • D. 

      None of the above.

  • 57. 
    • A. 

      The tooth must be free of debris.

    • B. 

      The tooth must be thoroughly dried.

    • C. 

      The etchant gel is placed only where needed.

    • D. 

      It is cured for 15 to 30 seconds.

  • 58. 
    Zinc phosphate cement should be mixed:
    • A. 

      On a cool glass slab.

    • B. 

      On a warm glass slab.

    • C. 

      On a paper pad.

    • D. 

      Quickly.

  • 59. 
    Which of the following will NOT help to dissipate heat when mixing zinc phosphate cement?     
    • A. 

      Mixing on a cool glass slab

    • B. 

      Adding small increments

    • C. 

      Spatulate over a large area of the slab

    • D. 

      Mixing quickly

  • 60. 
    • A. 

      Dispensing powder first and then liquid

    • B. 

      Dispensing the liquid first and then powder

    • C. 

      Dispense liquid when it is time to mix the cement

    • D. 

      Keeping the lid on the liquid

  • 61. 
    Which cement inhibits recurrent decay?     
    • A. 

      Zinc phosphate

    • B. 

      Glass ionomer

    • C. 

      Zinc oxide-eugenol

    • D. 

      Composite resin

  • 62. 
    Which is NOT true of the preparing the tooth for a composite resin cementation?     
    • A. 

      Etch enamel and dentin for 15 seconds.

    • B. 

      Rinse completely.

    • C. 

      Blot the tooth with a cotton pellet.

    • D. 

      Dry the tooth completely.

  • 63. 
    The cement that gives off an exothermic reaction and must be spatulated over a wide area of a cool, dry, thick glass slab is:     
    • A. 

      Zinc oxide-eugenol (ZOE).

    • B. 

      Polycarboxylate.

    • C. 

      Zinc phosphate

    • D. 

      Composite resin.

  • 64. 
    The dental assistant may have the responsibility of placing the mixed cement into the casting. The cement should be loaded:     
    • A. 

      Into the casting until it is overflowing.

    • B. 

      So that a thin lining covers all internal walls of the casting.

    • C. 

      To the top margin of the crown so that it is full.

    • D. 

      Only on the very bottom of the crown.

  • 65. 
    Which of the following cement types is(are) the most versatile and the least irritating to the pulp?     
    • A. 

      ZOE cement

    • B. 

      Glass ionomer cement

    • C. 

      Composite resin cement

    • D. 

      Both a and b

  • 66. 
    Which of the following is the most important rule to follow when preparing dental cements?     
    • A. 

      Working as quickly as possible

    • B. 

      Following the manufacturer's instructions

    • C. 

      Making the mix as thick as possible

    • D. 

      Doing all of the above

  • 67. 
    A _____ is classified as a type I dental cement and acts as an adhesive to hold together the indirect restoration and the tooth structure.     
    • A. 

      Temporary cement

    • B. 

      Luting cement

    • C. 

      Provisional cement

    • D. 

      Liner

  • 68. 
    If excess cement is not removed from in and around the gingival margin and sulcus of the tooth, the cement can:     
    • A. 

      Dissolve out from under the crown, which then may be lost or swallowed.

    • B. 

      Irritate the area and cause inflammation and discomfort.

    • C. 

      Demineralize the enamel.

    • D. 

      Create an occlusal prematurity.

  • 69. 
    When dispensing most cement, generally the powder should be _______ before dispensing.     
    • A. 

      Packed

    • B. 

      Fluffed

    • C. 

      Measured

    • D. 

      Both b and c

  • 70. 
    A cement frequently used for cementing provisional coverage is:     
    • A. 

      Type I .

    • B. 

      Type II ZOE.

    • C. 

      Composite resin.

    • D. 

      Glass ionomer.

  • 71. 
    Permanent cements are used for luting all except:     
    • A. 

      Laminate veneers.

    • B. 

      Orthodontic fixed appliances.

    • C. 

      Provisionals.

    • D. 

      Cast restorations.

  • 72. 
    Polycarboxylate cement:     
    • A. 

      Forms a mechanical bond to tooth structure.

    • B. 

      Is generally used as a temporary sedative cement.

    • C. 

      Is less irritating to the pulp than zinc phosphate cement.

    • D. 

      Must be mixed on a glass slab.

  • 73. 
    Which is the correct cementing consistency for zinc phosphate cement?
    • A. 

      The cement should be soupy.

    • B. 

      The cement should string up and break about 1 inch from the slab.

    • C. 

      The mix should be slightly tacky.

    • D. 

      The mix should form in a ball.

  • 74. 
    To increase the working time of glass ionomer it can be mixed:     
    • A. 

      Quickly.

    • B. 

      Slowly.

    • C. 

      On a glass slab.

    • D. 

      None of the above.

  • 75. 
    When removing cement from a casting, never:     
    • A. 

      Use a explorer.

    • B. 

      Use a firm fulcrum.

    • C. 

      Move instruments in a horizontal direction.

    • D. 

      Pull excess cement down away from the casting.

  • 76. 
    Which is NOT true of the preparing the tooth for a composite resin cementation?     
    • A. 

      Etch enamel and dentin for 15 seconds.

    • B. 

      Rinse completely.

    • C. 

      Blot the tooth with a cotton pellet.

    • D. 

      Dry the tooth completely.

  • 77. 
    Which of the following is the most important rule to follow when preparing dental cements?     
    • A. 

      Working as quickly as possible

    • B. 

      Following the manufacturer's instructions

    • C. 

      Making the mix as thick as possible

    • D. 

      Doing all of the above

  • 78. 
    Which type(s) of cements can be light-cured?     
    • A. 

      Composite resin

    • B. 

      Glass ionomer

    • C. 

      ZOE

    • D. 

      Both a or b