Preclinical Operative Dentistry
Exam Practice Tests
Course Introduction
Preclinical Operative Dentistry introduces students to the foundational principles, techniques, and materials used in the restoration of teeth affected by caries, trauma, or developmental defects. Through a combination of lectures and hands-on laboratory sessions, students develop essential skills in tooth preparation, cavity design, and placement of restorations using amalgam, composite resin, and other dental materials. Emphasis is placed on understanding tooth morphology, maintaining tooth function and aesthetics, infection control, and the ethical responsibilities of dental practice. This course serves as a critical step in preparing students for clinical practice by fostering competence, precision, and confidence in operative procedures.
Recommended Textbook
Dental Instruments 6th Edition by Linda R. Bartolomucci Boyd
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21 Chapters
398 Verified Questions
398 Flashcards
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Chapter 1: Basic Dental Instruments
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9 Verified Questions
9 Flashcards
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Sample Questions
Q1) Which statement is correct about cotton forceps?
A)Comes in one size
B)Has plain or serrated tips
C)Has pointed or rounded tips
D)B and C only
E)All of the above
Answer: D
Q2) Which instrument would NOT be found on a basic tray set-up?
A)Mouth mirror
B)Sickle scaler
C)Explorer
D)All of the above are found on the basic tray.
Answer: B
Q3) The main function of this instrument is to grasp and/or transfer material into and out of the oral cavity.
A)Curette
B)Mouth mirror
C)Periodontal probe
D)Cotton forceps (pliers)
Answer: D
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Chapter 2: Enamel Cutting Instruments
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21 Flashcards
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Sample Questions
Q1) Which instrument is used to remove unsupported enamel?
A)Enamel Hoe
B)Enamel Hatchet
C)Margin Trimmer
D)Wedelstaedt Chisel
Answer: B
Q2) The instrument used to remove carious dentin in a cavity preparation is a(n)
A)hoe.
B)hatchet.
C)angle former.
D)spoon excavator.
E)mesial or distal gingival margin trimmer.
Answer: D
Q3) Which enamel cutting instrument is used in a pull motion?
A)Enamel hoe
B)Straight chisel
C)Enamel hatchet
D)Binangle chisel
E)Wedelstaedt chisel
Answer: A
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Chapter 3: Local Anesthetic Syringecomponents and Nitrous
Oxide Sedation
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23 Verified Questions
23 Flashcards
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Sample Questions
Q1) Which color tank is used for nitrous oxide?
A)Red
B)Blue
C)Green
D)White
Answer: C
Q2) What is the purpose of a scavenger system on a nitrous oxide/oxygen sedation unit?
A)Evacuate the excess gas that the patient does not breathe.
B)Monitor the patient's carbon dioxide levels.
C)To monitor the patient's oxygen levels.
D)Remove waste from the oral cavity.
Answer: A
Q3) Name the part of the anesthetic syringe that is inserted into the plunger.
A)Aluminum cap
B)Protective cap
C)Needle hub
D)Harpoon
Answer: D
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Sample Questions
Q1) A(n) _____ evacuates large amounts of fluid and debris from the oral cavity.
A)angled stainless steel evacuator tip
B)low-velocity (volume) evacuation (LVE)
C)high-velocity (volume) evacuation (HVE)
D)high-velocity (volume) surgical evacuation tip
Q2) What is the function of the Isolite?
A)Retract the tongue.
B)Provide light to the working area of the mouth.
C)Evacuate saliva and water from the patient's mouth.
D)All of the above
Q3) What is a rheostat?
A)Adjusts the position of the dental chair.
B)Runs handpieces when depressed.
C)Turns the unit light off and on.
D)None of the above
Q4) When should a treatment tablet be added to the unit water bottle?
A)When water looks contaminated
B)Every time the bottle is filled
C)When the bottle is half full
D)Between each patient
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Chapter 5: Dental Handpieces
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15 Flashcards
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Sample Questions
Q1) Which type of handpiece used with a highly concentrated light source?
A)Laser handpiece
B)Air abrasion handpiece
C)Fiberoptic high-speed handpiece
D)Slow-speed motor with contra angle
Q2) When using the surgical electrical handpiece unit, a lower speed may be used for which procedure?
A)Implants
B)Crown preparation
C)Surgical extraction
D)All of the above
Q3) Which dental device uses a high-pressure jet of air, water and polishing agent to clean and debride tooth surfaces?
A)RDH prophy handpiece
B)High-speed handpiece
C)Air abrasion
D)Air polisher
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Chapter 6: Burs and Rotary Attachments for Handpieces
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Sample Questions
Q1) Name the type of bur used to help place anatomy in a composite restoration and to equilibrate or adjust occlusion.
A)Round bur
B)Diamond bur
C)Finishing bur
D)A and B are both used.
Q2) The dental procedure requires a No. 37 bur for the tray setup. Which bur would you select?
A)Round bur
B)Inverted cone
C)Pear-shaped bur
D)Straight fissure-plain cut
E)Tapered fissure-crosscut
Q3) Which polishing rubber point is the most abrasive?
A)Brown points
B)Green points
C)White points
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Chapter 7: Dental Dam Instruments
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20 Flashcards
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Sample Questions
Q1) Which instrument is used to place the dental dam clamp on the tooth and also to remove it from the tooth?
A)Forceps
B)Punch
C)Stamp
D)Frame
Q2) Which size hole is designated for a premolar tooth?
A)4
B)3
C)2
D)1
Q3) A size 4 hole is punched for which teeth?
A)Premolars
B)Maxillary central and laterals
C)Maxillary canine
D)Molars
Q4) A plastic dental dam frame may be left on during radiographic exposures.
A)True
B)False
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Chapter 8: Amalgam Restorative Instruments
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27 Verified Questions
27 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 fall by itself from the amalgam carrier.
C)Amalgam will stick in the carrier.
D)None of the above
Q2) Which of the following instruments is used to smooth the amalgam after an amalgam restoration has been condensed?
A)Woodson
B)Tanner carver
C)Acorn burnisher
D)Half-Hollenback carver
E)All of the above
Q3) What is the function of the inner knob of a Tofflemire band retainer?
A)It adjusts size or loop of matrix band to fit around tooth.
B)It slides up and down on spindle to secure band in place.
C)It tightens or loosens matrix band in the retainer.
D)It holds the matrix band in the retainer.
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Chapter 9: Composite Restorative Instruments
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Sample Questions
Q1) The composite well is used for what type of material (or materials)?
A)Primer
B)Etchant
C)Bonding material
D)All of the above
Q2) Which of the following tasks would NOT require of microbrush?
A)Place bonding material in cavity preparation.
B)Place acid etch in cavity preparation.
C)Place primer in cavity preparation.
D)Place liner in cavity preparation.
Q3) Why is there no adhesive material in the center of a finishing strip?
A)Avoid removal of tooth structure.
B)Avoid cutting the interdental papilla.
C)Avoid removal of too much composite.
D)All of the above
Q4) Why would a composite material well have a protective cover?
A)Keep out contaminants.
B)Avoid different materials from intermixing.
C)Prevent the ambient light from setting the material.
D)All of the above
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Chapter 10: Crown and Bridge Restorative Instruments
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17 Flashcards
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Sample Questions
Q1) Which instrument establishes centric relationship of the maxillary teeth to the mandibular teeth?
A)Cad/CAM machine
B)Wooden bite stick
C)Facebow
D)Articular
Q2) A shade guide for crown and bridge procedure is found on which tray setup?
A)Crown and bridge preparation tray setup
B)Crown and bridge cementation tray setup
Q3) Crown and bridge scissors are used for all of the following purposes EXCEPT
A)trimming the gingival edge of a permanent crown.
B)cutting gingival retraction cord.
C)trimming a matrix band.
D)cutting dental dam.
Q4) All of the following are uses for contouring pliers EXCEPT
A)to contour the marginal edge of a temporary crown.
B)to remove a provisional crown.
C)to crimp and contour the marginal edge of a stainless steel crown.
D)to crimp the marginal edge of a provisional restoration.
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Chapter 11: Endodontic Instruments
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28 Verified Questions
28 Flashcards
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Sample Questions
Q1) What is used to condense the gutta-percha laterally in canal?
A)Gutta-percha warming unit
B)Endodontic spreader
C)Endodontic plugger
D)Lentulo spiral
Q2) Which type of endodontic instrument is used to curet the inside of the tooth to the base of the pulp chamber?
A)Endodontic file
B)Endodontic reamer
C)Endodontic explorer
D)Endodontic long-shank spoon
Q3) A Peso file is used to remove debris from the root canal.
A)True
B)False
Q4) Sterile absorbent paper points should be disposed of in the garbage.
A)True
B)False
Q5) As files and reamers increase in size, how is that increase identified?
A)The identification number goes up.
B)The identification number goes down.
Page 13
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Chapter 12: Hygiene Instruments
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15 Flashcards
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Sample Questions
Q1) Name the type of scaler used to remove deposits and stain from implant areas.
A)Universal curette
B)Implant scaler
C)Chisel scaler
D)Sickle scaler
Q2) Which sharpening stone is used to sharpen scalers and curettes?
A)India stone
B)Arkansas stone
C)Ceramic stone
D)All of the above are correct.
E)Only B and C are correct.
Q3) Identify the type of curette used to scale supragingival and subgingival surfaces. This instrument has two parallel cutting edges and a rounded toe, and the blade is angled 90 degrees to the lower shank.
A)Universal curette
B)Area-specific curette-posterior
C)Area-specific curette-anterior
D)Mini extended area-specific curette
E)Extended area-specific curette-After Five design
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Page 14
Chapter 13: Preventive and Sealant Instruments and Bleaching Trays
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7 Flashcards
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Sample Questions
Q1) The Vacuum Former is used for which procedures listed below?
A)To make bleaching trays.
B)To make orthodontic positioners.
C)To make night and mouth guards.
D)To make custom temporary crowns.
E)All of the above
Q2) Which item best absorbs saliva from the parotid gland?
A)Cotton roll holder
B)Cotton rolls
C)Dri-Aid
D)None of the above
Q3) For what purpose would a Diagnodent unit be used?
A)Measure the length of the canal in the root of the tooth.
B)Detect calculus subgingivally.
C)Detect the pit and fissures of the tooth structure.
D)Detect caries within the tooth structure.
Q4) What does a Diagnodent use to detect caries?
A)Fluorescence
B)Visible light
C)Laser
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Chapter 14: Orthodontic Instruments
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21 Verified Questions
21 Flashcards
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Sample Questions
Q1) Which instrument is used to remove brackets from the teeth?
A)Bracket remover
B)Adhesive remover
C)How (or Howe) pliers
D)Posterior band remover
Q2) Which instrument would be included on a tray setup for an orthodontic tying-in arch wire?
A)Elastic separating pliers
B)Orthodontic hemostat
C)Spring coil separators
D)Three-prong pliers
E)Ligature director
Q3) A Kobayashi tie features a preformed hook.
A)True
B)False
Q4) Which type of instrument is designed to bend and form loops in the arch wire?
A)Tweed loop-forming pliers (Jarabak pliers)
B)Arch-bending pliers
C)Three-prong pliers
D)Bird beak pliers
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Chapter 15: Universal Surgical Instruments
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21 Flashcards
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Sample Questions
Q1) Suture scissors may be straight or angled.
A)True
B)False
Q2) A periosteal elevator is used to retract the tongue or cheek during surgery.
A)True
B)False
Q3) Which type of suture material is made from a gut product?
A)Resorbable
B)Nonresorbable
Q4) A Catroviejo is a type of surgical plier.
A)True
B)False
Q5) Mouth props come in a one size fits all size.
A)True
B)False
Q6) A mouth gag is available in one size only.
A)True
B)False
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Chapter 16: Periodontal Instruments and Periodontal Surgical Instruments
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Sample Questions
Q1) Which angle is associated with an interdental file?
A)Curved
B)Straight
C)Mesial/distal
D)Buccal/lingual
E)All of the above.
Q2) Which instrument is used for interdental cutting of gingiva and removal of tissue?
A)Periodontal kidney-shaped knife
B)Interdental spear-point knife
C)Interdental file
D)Curette
Q3) To create a bevel incision for a gingivectomy, the best instrument of choice is
A)periodontal knife--spear point.
B)periodontal knife--kidney shaped.
Q4) Which surgical instrument is used to remove tissue?
A)Interdental file.
B)Interdental knife.
C)Periodontal scaler.
D)Periodontal knife.
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Chapter 17: Oral Surgery Extraction Instruments
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Sample Questions
Q1) Which type of surgical instrument is used to remove small root tips in difficult-to-reach areas?
A)Root tip picks
B)Root elevator
C)Root-tip elevator
D)Luxating elevator
Q2) Which instrument is used to lift and remove small root tips in difficult-to-reach areas of the tooth socket?
A)Rongeur
B)Root-tip pick
C)T-bar elevator
D)Luxating elevator
Q3) Which type of surgical forceps is designed to extract maxillary centrals, laterals, cuspids, premolars, and roots?
A)No. 10S
B)No. 16
C)No. 17
D)Cryer No. 150
E)Cryer No. 151
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Chapter 18: Sterilization Equipment
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Sample Questions
Q1) If the indicator tape changes color, sterility is assured.
A)True
B)False
Q2) When would one use a sterilization pouch?
A)To sterilize loose instruments.
B)To hold the biological monitor strip.
C)To hold sterilized items until they are needed.
D)All of the above
E)A and C are both correct.
Q3) Gowns worn during patient care must have which of the following properties?
A)Cloth material made of polyester and cotton in accordance with state and/or federal regulations.
B)Moisture resistant (against contamination by liquids)
C)Cuffed long sleeves
D)Closure at neckline
E)All of the above
Q4) Nitrile utility gloves protect hands during processing of the dental instruments for sterilization and disinfection.
A)True
B)False
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Chapter 19: Dental Materials Equipment
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Sample Questions
Q1) Which lab instrument is beneficial in separating an impression from the poured and set model?
A)Lab knife
B)Lab spatula
C)Model trimmer
D)Flexible metal spatula
Q2) Flexible rubber bowls are used to mix which material(s)?
A)Powder and liquid, such as irreversible hydrocolloid (alginate)
B)Plaster or stone for pouring up models
C)Reversible hydrocolloid
D)Polyvinylsiloxane
E)A and B are both correct.
Q3) An alginator is used in many dental procedures involving taking an alginate impression.
A)True
B)False
Q4) The flexible alginate spatula does not require sterilization following use.
A)True
B)False
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Chapter 20: Dental Imaging and Diagnostic Equipment
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Sample Questions
Q1) What is the common size of the dental film used for children younger than 3 years of age?
A)Size 0
B)Size 1
C)Size 2
D)Size 3
Q2) Which type of exposure is a panoramic?
A)Intraorally.
B)Extraorally.
Q3) Holders for digital X-ray sensors feature slots on the ring that are color-coded to the type of X-ray taken.
A)True
B)False
Q4) Which XCP holder holds film when taking projections for endodontic procedures?
A)Red
B)Blue
C)Green
D)Yellow
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Page 22
Chapter 21: Vital Signs and Beyond
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Sample Questions
Q1) The machine that monitors the patient's heartbeat during dental surgical procedures, IV sedation, and general anesthesia is a(n)
A)electrocardiogram.
B)pulse oximeter.
C)capnograph.
D)blood pressure monitor.
Q2) Blood pressure cuffs are available in
A)small.
B)medium.
C)large.
D)All of the above are correct
Q3) An aneroid dial system is part of which monitoring equipment?
A)Sphygmomanometer
B)Stethoscope
C)EKG
Q4) What is the correct placement of the sphygmomanometer?
A)At the elbow.
B)Just below the elbow.
C)Just above the elbow.
D)2 inches above the bend of the elbow.
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