Chairside Dental Assisting Chapter Exam Questions
Course Introduction
Chairside Dental Assisting introduces students to the essential skills and responsibilities required to assist dentists during clinical procedures. The course covers the principles of infection control, patient preparation, instrument and material management, and maintaining a safe and efficient dental environment. Emphasis is placed on effective communication with patients, proper handling and transfer of dental instruments, assisting with restorative and specialty procedures, and understanding dental charting and documentation. Through a combination of theoretical knowledge and hands-on practice, students develop the competence needed to support the dental team and provide quality patient care in a professional clinical setting.
Recommended Textbook
Dental Instruments 6th Edition by Linda R. Bartolomucci Boyd
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Chapter 1: Basic Dental Instruments
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Q1) Which type of mouth mirror reflects magnifies the image?
A)Double-sided mirror
B)Front surface mirror
C)Concave mirror
D)All of the above
Answer: B
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) What is the purpose of the mouth mirror?
A)Provide indirect vision.
B)Reflect light into the mouth.
C)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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Sample Questions
Q1) Which of the following characteristic describes both the enamel hatchet and enamel hoe?
A)They are both used with a push motion.
B)They are both three-number instruments.
C)They can both only be found as a single-ended instrument.
D)Their cutting blades are almost perpendicular to the instrument handle.
Answer: B
Q2) Which instrument (or instruments) is used to plane and cleave enamel?
A)Angle former
B)Straight chisel
C)Wedelstaedt chisel
D)All of the above.
E)Only B and C are correct. Answer: E
Q3) Which instrument is used to remove unsupported enamel?
A)Enamel Hoe
B)Enamel Hatchet
C)Margin Trimmer
D)Wedelstaedt Chisel
Answer: B
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Chapter 3: Local Anesthetic Syringecomponents and
Nitrous Oxide Sedation
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Sample Questions
Q1) Which needle length is commonly used to administer an injection of anesthetic on the mandibular arch for a block injection?
A)Short needle
B)Long needle
C)3-inch needle
D)4-inch needle
Answer: B
Q2) The length of a short needle used to administer a local anesthetic is inch.
A)1/2 inch
B)5/8 inch
C)1 inch
D)1 1/2 inches
E)1 5/8 inches
Answer: C
Q3) What device is used to monitor how much N O the patient receives?
A)Scavenger system
B)Flowmeter
C)Nose mask
D)N2O gauge
Answer: B
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Chapter 4: Evacuation Devices, Airwater Syringe Tip, and Dental Unit
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Sample Questions
Q1) What is the purpose of the low-volume (velocity) evacuator for the mandibular arch?
A)To remove large amounts of saliva and fluid from the mouth.
B)To remove small amount of saliva and fluid from the mouth.
C)To retract the tongue during a dental procedure.
D)Both B and C are correct.
E)All of the above
Q2) Which statement regarding the evacuator tip for a surgical site or procedure is correct?
A)Inserted into the high-velocity evacuation system.
B)Inserted into the low-velocity evacuation system.
C)Narrows to accommodate the surgical site.
D)Is a saliva ejector.
E)Both A and C are correct.
Q3) Which of the following could be found on the dental assistant delivery system?
A)Computer monitor
B)Air/water syringe
C)Curing light
D)All of the above
E)Only B and C are correct.
Page 6
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Chapter 5: Dental Handpieces
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Sample Questions
Q1) What is the maximum rotation speed of the surgical electrical handpiece unit with implant handpiece?
A)10-50 rotations per minute
B)30,000 rotations per minute
C)40,000 rotations per minute
D)60,000 rotations per minute
E)450,000 rotations per minute
Q2) When is a slow-speed motor with contra-angle handpiece attachment used?
A)Remove decay.
B)Cut a tooth with decay.
C)Remove existing crowns or bridges.
D)Grind veneers down for replacement.
Q3) Which cavity preparation could use air abrasion for the preparation?
A)Class I and V
B)Class I and VI
C)Class II and VI
D)Class II and V
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Chapter 6: Burs and Rotary Attachments for Handpieces
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Sample Questions
Q1) Which of the following is not a function of a finishing bur?
A)Finish composite restoration.
B)Equilibrate or adjust occlusion.
C)Finish restoration by restoring anatomy in tooth.
D)Place retention grooves in walls of cavity preparation.
Q2) If a tray setup requires a No. 168 bur, which type of bur would you select?
A)Round bur
B)Inverted cone
C)Straight fissure-crosscut
D)Tapered fissure-plain cut
E)Tapered fissure-crosscut
Q3) Identify the number of the bur that has tapered sides with horizontal cutting edges.
A)157
B)168
C)330
D)699
E)701
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8
Chapter 7: Dental Dam Instruments
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Sample Questions
Q1) A _____ is used as a guide for marking and punching holes in the correct positions on a dental dam.
A)stamp
B)punch
C)clamp
D)template
Q2) Why must dental floss be attached to each dental clamp used during a dental procedure?
A)To prevent the dental clamp from dislodging.
B)To prevent the patient from swallowing the dental clamp.
C)To prevent the patient from feeling any pain from the dental clamp.
D)All of the above
Q3) 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
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9
Chapter 8: Amalgam Restorative Instruments
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Sample Questions
Q1) Which of the following instruments could be used to contour the interproximal walls of an amalgam restoration?
A)Tanner
B)Gold knife
C)Discoid/cleoid
Q2) Which type of matrix band is designed for larger posterior teeth?
A)Molar band
B)Anterior band
C)Universal band
D)Premolar band
Q3) Metal matrix bands are used for what type of cavity restoration?
A)Class I
B)Class II
C)Class III
D)Class IV
E)Class V
Q4) An amalgam well is used to mix alloy and mercury in a capsule.
A)True
B)False
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Chapter 9: Composite Restorative Instruments
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Sample Questions
Q1) Finishing strips should be disposed of in a regulated waste receptacle.
A)True
B)False
Q2) Which items are added to a restorative tray for a composite resin procedure?
A)Mylar matrix
B)Resin curing light
C)Gold carving knife
D)Applicator and tips
E)All of the above
Q3) The composite well is used for what type of material (or materials)?
A)Primer
B)Etchant
C)Bonding material
D)All of the above
Q4) What is the purpose of the curing light protective shield?
A)To protect the assistant's eyes
B)To protect the operator's eyes
C)To protect the patient's eyes
D)Only A and B are correct.
E)All of the above
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Chapter 10: Crown and Bridge Restorative Instruments
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Sample Questions
Q1) 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
Q2) It takes two appointments to prepare, fabricate, and deliver a CAD/CAM permanent crown.
A)True
B)False
Q3) Which of the following instruments would be found on a tray setup for seating and cementing a crown?
A)Flexible cement mixing spatula
B)Woodson instrument
C)Trial crown remover
D)Wooden bite stick
E)All of the above
Q4) What is the main function of the trial crown remover?
A)Remove temporary crowns.
B)Place permanent crowns on the prepared tooth.
C)Remove permanent crowns during the try-in phase.
D)A and C are correct.
E)All of the above
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Chapter 11: Endodontic Instruments
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Sample Questions
Q1) Which endodontic instrument is used to locate openings of small canal orifices for an endodontic procedure?
A)Broach
B)K-type file
C)Apex locator
D)Endodontic explorer
Q2) Which of the following endodontic instruments is used to cut the dentinal walls of a tooth canal?
A)Broach
B)Reamer
C)K-type file
D)Endodontic spoon
Q3) Which instrument is used to remove the pulp tissue from a canal?
A)Broach
B)Reamer
C)K-type file
D)Hedstrom file
Q4) Sterile absorbent paper points should be disposed of in the garbage.
A)True
B)False
Page 13
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Chapter 12: Hygiene Instruments
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Sample Questions
Q1) 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
Q2) How would an instrument sharpening stone be cared for?
A)Sterilize after each patient use.
B)Place on a scaling/root planning tray set-up.
C)Lubricate with oil or water per manufacturer's directions prior to use.
D)All of the above are correct.
Q3) Which of the following ultrasonic scaler tips features water delivered directly from the base of the tip?
A)Supragingival
B)Subgingival
C)Furcation
D)Universal
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14
Chapter 13: Preventive and Sealant Instruments and Bleaching Trays
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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) What does the Spectra Caries Detection Aid System use to detect caries?
A)Fluorescence
B)Visible light
C)Doppler
D)Laser
Q3) To precisely cut material, especially for bleaching trays, the instrument of choice is
A)short blade scissors.
B)long blade scissors.
C)model trimmer.
D)alcohol torch.
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Chapter 14: Orthodontic Instruments
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Sample Questions
Q1) Which instrument is used to remove orthodontic bands from the teeth?
A)Ligature director
B)Three-prong pliers
C)Weingart utility pliers
D)Posterior band remover
Q2) Which instrument is designed for tying in the arch wire?
A)Orthodontic hemostat (Mathieu pliers)
B)Ligature-tying (Coon) pliers
C)Weingart utility pliers
D)Ligature director
E)Both A and B are correct.
Q3) A three-prong pliers are used to bend heavy wire.
A)True
B)False
Q4) Which material is commonly used to separate teeth prior to bonding a tooth for orthodontic bands.
A)Nylon separators
B)Elastic separators
C)Vinyl separators
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Chapter 15: Universal Surgical Instruments
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Sample Questions
Q1) Suture scissors may be straight or angled.
A)True
B)False
Q2) Which instrument is used to grasps tissue or bone fragments?
A)Hemostat
B)Suture scissors
C)Periosteal elevator
D)Suture needle holder
Q3) Mouth props come in a one size fits all size.
A)True
B)False
Q4) A periosteal elevator is placed on oral surgery and periodontal surgical tray setups to reflect periodontal tissues.
A)True
B)False
Q5) A mouth gag locks the patient's mouth open during a dental procedure.
A)True
B)False
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Chapter 16: Periodontal Instruments and Periodontal Surgical Instruments
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Sample Questions
Q1) The mesial/distal and buccal/lingual hoes are designed to function in posterior locations only.
A)True
B)False
Q2) What is the best periodontal instrument to use to remove subgingival and supragingival calculus?
A)Buccal/lingual hoe.
B)Mesial/distal hoe.
C)Back action hoe.
D)All of the above
E)Both A and B.
Q3) The dentist asks for a Nabors probe. What is this instrument used for measuring?
A)The depth of a periodontal pocket.
B)The depth of furcation areas.
C)The level of attachment loss.
D)All of the above are correct.
Q4) A periodontal probe has either a flat or a rounded tip.
A)True
B)False
18
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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 lift and remove root fragments?
A)Luxating elevator
B)Root-tip elevator
C)Periotome
Q2) Which instrument is used to trim and remove excess alveolar bone after extraction?
A)Rongeur.
B)Bone file.
C)T-bar elevator.
D)Surgical chisel.
Q3) A rongeur is commonly used to trim and remove excess alveolar bone after extraction of teeth.
A)True
B)False
Q4) Root-tip elevators remove small root tips in difficult areas.
A)True
B)False
Q5) A periotome is used when dental implant placement is indicated.
A)True
B)False
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Chapter 18: Sterilization Equipment
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Sample Questions
Q1) One method to determine sterilization efficacy is to place a biological monitor testing device in the sterilizer for one sterilization cycle and then submit it to a sterilization monitoring service that mails the results back to the dental practice.
A)True
B)False
Q2) Sterilization pouches have a range of sizes to accommodate all sizes of instruments and cassettes.
A)True
B)False
Q3) If the indicator tape changes color, sterility is assured.
A)True
B)False
Q4) Protective masks should be changed after every patient.
A)True
B)False
Q5) When indicator tape is placed on the outside of a cassette, the strips will NOT change color after the sterilization process.
A)True
B)False
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Chapter 19: Dental Materials Equipment
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Sample Questions
Q1) In the reversible hydrocolloid unit, what should the temperature for the storage bath be?
A)110° F (44° C)
B)150° F (65.5° C)
C)212° F (100° C)
Q2) Why do impression trays have perforations?
A)Provides for easier clean-up after pouring.
B)Provide adequate air circulation for proper setting times.
C)Allow material to push through the holes, creating a mechanical lock that keeps the material in place.
D)All of the above are correct
Q3) When would one use a triple tray for impressions?
A)To take a maxillary impression along with the occlusal bite.
B)To take a mandibular impression along with the occlusal bite.
C)To take a maxillary impression along with a mandibular impression.
D)To take a maxillary impression, mandibular impression, and an occlusal bite.
E)None of the above.
Q4) Bite registration trays come in a selection of right, left, and anterior.
A)True
B)False
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Chapter 20: Dental Imaging and Diagnostic Equipment
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Sample Questions
Q1) Which XCP holder holds film when taking projections for endodontic procedures?
A)Red
B)Blue
C)Green
D)Yellow
Q2) 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
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 type of radiography system utilizes phosphor storage plates?
A)Cone beam 3-D imaging system
B)Digital panoramic imaging unit
C)SCANX digital imaging system
D)Digital intraoral X-ray unit
Page 22
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Chapter 21: Vital Signs and Beyond
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Sample Questions
Q1) What is the instrument used to hear the pulse, heartbeat, and systolic and diastolic pressure?
A)Sphygmomanometer
B)Pulse oximeter.
C)Stethoscope.
D)EKG.
Q2) An aneroid dial system is part of which monitoring equipment?
A)Sphygmomanometer
B)Stethoscope
C)EKG
Q3) Blood pressure readings should be
A)taken prior to dental procedures being performed.
B)at the completion of dental treatment.
C)recorded in the patient's chart.
D)Both A and C are correct.
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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