Dental Materials
Exam Answer Key
Course Introduction
Dental Materials is an essential course that explores the properties, composition, and applications of materials used in dentistry. Students learn about various types of dental materials, including metals, ceramics, polymers, and composites, focusing on their biocompatibility, mechanical behavior, and performance in restorative, preventative, and prosthetic dental procedures. The course emphasizes the selection criteria, manipulation techniques, and advancements in dental material science, preparing students to make informed decisions in clinical practice to ensure patient safety, efficacy of dental treatments, and long-term oral health.
Recommended Textbook
Dental Instruments A Pocket Guide 4th Edition by Linda R. Bartolomucci Boyd
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20 Chapters
338 Verified Questions
338 Flashcards
Source URL: https://quizplus.com/study-set/2295 Page 2
Chapter 1: Basic Dental Instruments
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6 Verified Questions
6 Flashcards
Source URL: https://quizplus.com/quiz/45598
Sample Questions
Q1) How is alternating instrument handles beneficial to the dental professional using it?
A)It helps in lightening the grasp of an instrument.
B)It maximizes control of the instrument.
C)It lessens the stress associated with carpal tunnel syndrome.
D)It minimizes fatigue when using the instrument.
Answer: C
Q2) In a mouth mirror, which type of mirror reflects the best image?
A)Flat surface mirror
B)Front surface mirror
C)Concave mirror
D)All of the above
Answer: B
Q3) The purpose of the mouth mirror is
A)to provide indirect vision.
B)to reflect light into the mouth.
C)to retract the lips, cheeks, and tongue.
D)A and C
E)All of the above
Answer: E
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Page 3
Chapter 2: Enamel Cutting Instruments
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19 Verified Questions
19 Flashcards
Source URL: https://quizplus.com/quiz/45599
Sample Questions
Q1) If a 15-8-14 enamel hatchet is utilized in a dental procedure, what is the length of the blade of the instrument?
A)15 mm
B)8 mm
C)14 mm
Answer: B
Q2) Used on restorative tray setups, the main function of a spoon excavator is:
A)To remove carious dentin
B)To remove temporary crowns
C)To remove temporary cement in temporary restoration
D)To remove permanent crown during try-in
Answer: A
Q3) Indicate which enamel cutting instrument is used to remove decay from the cavity preparation.
A)Enamel hatchet
B)Enamel hoe
C)Spoon excavator
D)Wedelstaedt chisel
E)Binangle chisel
Answer: C
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Chapter 3: Local Anesthetic Syringe and Components
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17 Verified Questions
17 Flashcards
Source URL: https://quizplus.com/quiz/45600
Sample Questions
Q1) Which of the following would you find in a local anesthetic syringe tray setup?
A)Anesthetic cartridge
B)Needle stick protector
C)Cotton swabs
D)All of the above
Answer: D
Q2) What is the relationship between the thickness of the anesthetic needle and the gauge number of the needle?
A)The larger the gauge of the needle, the thicker the needle.
B)The larger the gauge of the needle, the shorter the needle.
C)The larger the gauge of the needle, the thinner the needle.
D)The larger the gauge of the needle, the longer the needle.
Answer: C
Q3) The following are all parts of the long needle: cartridge end of needle, needle hub, injection end of needle, protective cap, seal on cap, and needle guard.
A)True
B)False
Answer: True
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5
Chapter 4: Evacuation Devices, Airwater Syringe Tip and Dental Unit
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10 Verified Questions
10 Flashcards
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Sample Questions
Q1) The purpose of the air/water syringe is
A)to rinse the teeth or mouth with water.
B)to rinse the teeth or mouth with spray (air and water together).
C)to dry the teeth or mouth with air.
D)All of the above
E)None of the above
Q2) A rheostat is used for
A)running handpieces on a dental delivery system
B)chair adjustment
C)adjusting the light
D)All of the above
Q3) The evacuator for a surgical tip
A)is usually connected to the low-velocity evacuation system.
B)is usually connected to the high-velocity evacuation system.
C)narrows to accommodate the surgical site.
D)is a saliva ejector.
E)B and C
Q4) An _____________ chair features an adjustable seat level and front support bar.
A)Operator
B)Assistant
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Chapter 5: Dental Handpieces
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15 Verified Questions
15 Flashcards
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Sample Questions
Q1) What is the maximum rotation speed of the slow-speed handpiece?
A)20,000 rotations per minute
B)30,000 rotations per minute
C)75,000 rotations per minute
D)100,00 rotations per minute
Q2) The laser handpiece typically is used
A)for a class II cavity preparation.
B)for a class IV cavity preparation.
C)to cut soft tissue.
D)to control bleeding.
E)C and D
Q3) What is the advantage of a fiberoptic high-speed handpiece compared to a regular high-speed handpiece?
A)It is used with a bur to cut a tooth with decay or other dental anomalies.
B)It is used for adjusting crowns and bridges for final fit.
C)When used with a bur, it generates an extreme amount of heat.
D)It is used to provide light intraorally during use of handpiece.
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Chapter 6: Burs and Rotary Attachments for Handpieces
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32 Verified Questions
32 Flashcards
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Sample Questions
Q1) Which of the following is used to polish restorations, amalgam, composite, and gold?
A)No. 557
B)Football diamond bur
C)Green points
D)Brown points
E)C and D
Q2) Which of the following are parts of the bur?
A)Head
B)Neck
C)Shank
D)All of the above
Q3) Name the type of bur used to help place anatomy in a composite restoration and to equilibrate or adjust occlusion.
A)Finishing bur
B)Superfine diamond bur
C)Round bur
D)Diamond bur
E)A and B
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8
Chapter 7: Dental Dam Instruments
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20 Verified Questions
20 Flashcards
Source URL: https://quizplus.com/quiz/45604
Sample Questions
Q1) Why must dental floss be attached to each dental clamp when being used during a dental procedure?
A)To prevent the patient from swallowing the dental clamp.
B)To prevent the dental clamp from dislodging.
C)To prevent the patient from feeling any pain from the dental clamp.
D)All of the above.
Q2) A _____ is used as a guide for marking and punching holes in the correct positions on a dental dam.
A)dental dam stamp
B)dental dam punch
C)dental dam clamp
D)dental dam template
E)None of the above
Q3) How much space between dental dam holes is maintained to ensure proper placement of the dental dam?
A)4.5 mm
B)3.5 mm
C)2.5 mm
D)1.5 mm
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Chapter 8: Amalgam Restorative Instruments
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28 Verified Questions
28 Flashcards
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Sample Questions
Q1) What will happen if amalgam is not released immediately from an amalgam carrier after the tubes are filled?
A)Amalgam will corrode the interior walls of the amalgam carrier.
B)Amalgam will stick in the carrier.
C)Amalgam will fall by itself from the amalgam carrier.
D)None of the above.
Q2) Name the type of instrument used to smooth the amalgam after an amalgam restoration has been condensed.
A)Tanner carver
B)Half-Hollenback carver
C)Woodson
D)Acorn burnisher
E)All of the above
Q3) Which of the following is only found as a single-ended burnisher?
A)Football burnisher
B)Ball burnisher
C)Acorn burnisher
D)T-Ball burnisher
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Chapter 9: Composite Restorative Instruments
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17 Verified Questions
17 Flashcards
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Sample Questions
Q1) The composite well is used for what type of material (or materials)?
A)Etchant
B)Primer
C)Bonding material
D)All of the above
Q2) ________________is one of the protective shields used for light curing.
A)Orange goggles or shield
B)Clear goggles or shield
Q3) The curing light should be tested periodically for accuracy.
A)True
B)False
Q4) Name the instrument used to carve the interproximal surfaces of a composite restoration.
A)Gold carving knife
B)Half-Hollenback carver
C)Tanner carver
D)Finishing strips
E)All of the above
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11
Chapter 10: Crown and Bridge Restorative Instruments
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15 Verified Questions
15 Flashcards
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Sample Questions
Q1) What type of instrument (or instruments) would be found on a tray setup for crown and bridge cementation?
A)Crown-removing forceps
B)Spoon excavator
C)Curette
D)Woodson
E)All of the above
Q2) Which of the following materials is used to seat a permanent crown?
A)Wooden wedge
B)Wax bite
C)Wooden bite stick
D)Bite block
Q3) The main purpose of crown and bridge scissors is to crimp and contour the marginal edge of a temporary crown.
A)True
B)False
Q4) Gingival retraction cord instrument is mainly used on crown and bridge tray setup.
A)True
B)False
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Chapter 11: Endodontic Instruments
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27 Verified Questions
27 Flashcards
Source URL: https://quizplus.com/quiz/45608
Sample Questions
Q1) The stoppers placed on the files or reamers assists in determining
A)the length of the canal(s).
B)the width of the canal(s).
Q2) Which color represents a size 50 Endodontic K-file?
A)Purple
B)Green
C)Yellow
D)Blue
Q3) Sterile absorbent paper points should be disposed of in the garbage.
A)True
B)False
Q4) Name the instrument used to remove the pulp tissue from a canal.
A)Broach
B)K-type file
C)Hedstrom file
D)Reamer
Q5) The endodontic millimeter ruler assists in measuring
A)the length of the canal(s).
B)the width of the canal(s).
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Chapter 12: Hygiene Instruments
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15 Verified Questions
15 Flashcards
Source URL: https://quizplus.com/quiz/45609
Sample Questions
Q1) Identify the type of curette used to scale supragingival and subgingival surfaces; the instrument has two cutting edges and a rounded toe, and the blade is angled 90 degrees to the lower shank.
A)Area-specific curette-posterior
B)Area-specific curette-anterior
C)Mini extended area-specific curette
D)Extended area-specific curette-After Five design
E)Universal curette
Q2) Identify a type of curette used to remove deposits from subgingival surfaces; this type has a blade angled at 70 degrees to the lower shank and is designed to adapt to specific teeth, such as centrals, laterals, and cuspids.
A)Area-specific curette-posterior
B)Area-specific curette-anterior
C)Mini extended area-specific curette
D)Extended area-specific curette-After Five design
E)Universal curette
Q3) _________________ is commonly used to sharpen scalers and curettes.
A)Battery-operated sharpening device
B)Sharpening stones
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Page 14
Chapter 13: Preventive and Sealant Instruments and Bleaching Trays
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6 Verified Questions
6 Flashcards
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Sample Questions
Q1) Fluoride treatments are given
A)to help make the structure of the teeth smooth and shiny.
B)once a month.
C)to help prevent decay by mineralizing the teeth.
D)None of the above
Q2) Fluoride treatments usually are given to children
A)once a month.
B)once every 2 months.
C)once every 4 months.
D)once every 6 months.
E)once every 2 years.
Q3) _________________ is one of the new devices that can be used to detect caries in the structure of the tooth prior to placing sealants.
A)Diagnodent
B)Intraoral camera
C)Neither a nor b is correct
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15
Chapter 14: Orthodontic Instruments
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21 Verified Questions
21 Flashcards
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Sample Questions
Q1) Arch-bending pliers are one of the orthodontic instruments that can hold, place, and tie the ligatures to arch wire.
A)True
B)False
Q2) A Kobayashi tie features a preformed hook.
A)True
B)False
Q3) What instrument is part of the orthodontic setup for removing excess bonding material?
A)Shure scaler
B)Universal scaler
C)Universal curettes
Q4) A ________________ separator is used to separate teeth prior to banding.
A)steel spring
B)elastic
C)brass wire
D)All of the above
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Chapter 15: Universal Surgical Instruments
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14 Verified Questions
14 Flashcards
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Sample Questions
Q1) Name the instrument that grasps tissue or bone fragments.
A)Hemostat
B)Suture scissors
C)Suture needle holder
D)All of the above
Q2) Select the instrument that holds and retracts the tongue or cheek during surgery.
A)Mouth prop
B)Mouth gag
C)Hemostat
D)Tongue and cheek retractor
E)All of the above
Q3) A mouth gag locks the patient's mouth open during a dental procedure.
A)True
B)False
Q4) A periosteal elevator is used on oral surgery and periodontal surgical tray setups.
A)True
B)False
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17
Chapter 16: Periodontal Instruments and Periodontal Surgical Instruments
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12 Verified Questions
12 Flashcards
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Sample Questions
Q1) Which instrument is used to measure periodontal pocket depth in millimeter increments?
A)Furcation probe
B)Periodontal probe
C)Curette
D)Millimeter ruler
E)All of the above
Q2) Select the instruments that would be included on the periodontal surgical tray setup.
A)Tissue forceps
B)High-volume surgical aspirating tip
C)Periosteal elevator
D)Disposable irrigating syringe for sterile saline solution
E)All of the above
Q3) A back-action hoe removes bone adjacent to teeth without causing trauma.
A)True
B)False
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18
Chapter 17: Oral Surgery Extraction Instruments
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19 Verified Questions
19 Flashcards
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Sample Questions
Q1) This type of instrument is usually included in an extraction tray setup; it loosens the tooth from the periodontal ligaments before extraction and separates and lifts the tooth from the socket.
A)Surgical curette
B)Luxating elevator
C)Straight elevator
D)Root-tip picks
E)Hemostat
Q2) An instrument used during oral surgery to remove or smooth rough edges of alveolar bone is a
A)rongeur.
B)bone file.
C)bone chisel.
D)hemostat.
Q3) Which of the following instruments is (are) used to extract mandibular anterior teeth?
A)Mandibular anterior forceps
B)Mandibular bicuspid forceps
C)Elevator
D)Mandibular root forceps
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Chapter 18: Sterilization Equipment
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18 Verified Questions
18 Flashcards
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Sample Questions
Q1) Name the device that indicates that instruments have been exposed to a certain temperature by means of color-changing strips and that needs to be included in each sterilization of wrapped instrument(s).
A)Process indicator tape
B)Biological monitors
Q2) Name the type of unit that sterilizes instruments with steam under pressure (i.e., 15 psi) at 250° F for 20 minutes.
A)Unsaturated chemical vapor
B)Autoclave sterilizer (saturated steam)
C)Flash sterilizer
D)All of the above
Q3) Which of the following is NOT a characteristic of overgloves?
A)To wear over examination gloves when leaving the patient
B)To wear as a protective barrier over examination gloves so as not to cross-contaminate
C)To wear during patient care
D)All of the above
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Chapter 19: Dental Materials Equipment
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7 Verified Questions
7 Flashcards
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Sample Questions
Q1) In the reversible hydrocolloid unit, the temperature for the tempering bath should be
A)110° F (44° C).
B)150° F (65.5° C).
C)212° F (100° C).
Q2) Alginator is used for many dental procedures involving taking an alginate impression.
A)True
B)False
Q3) ______________ is the flexible dental instrument to manipulate materials.
A)Flexible alginate spatula
B)Flexible rubber bowl
C)None of the above
Q4) The Automixer is used for which type of material?
A)Polyvinylsiloxane
B)Alginate (irreversible hydrocolloid)
C)Reversible hydrocolloid
D)None of the above
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21
Chapter 20: Dental Radiography Equipment
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20 Verified Questions
20 Flashcards
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Sample Questions
Q1) __________ is the common size of the film for children under the age of 3.
A)Size 0
B)Size 1
C)Size 2
D)Size 3
Q2) Which size film is usually used for an occlusal projection of the anterior teeth on a child?
A)1
B)2
C)3
D)4
Q3) A panoramic x-ray is an
A)intraoral x-ray.
B)extraoral x-ray.
Q4) What does PID stand for?
A)Position indicating device
B)Positioning indicator device
C)None of the above
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