Browse all practice questions for the HOSA Chairside Assisting / Dental Instruments Practice Test. Search by topic, open any question and review its full explanation, then test yourself in the practice quiz.

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  • Which hand piece operates at 30,000 rpm and is used to polish the tooth?
  • What is the primary function of the base former in dentistry?
  • Which instrument’s primary function is to hold and transfer amalgam material to the dental cavity?
  • What material serves as a temporary filling in dental procedures?
  • Which tool is commonly used to hold, puncture, or move tissue during procedures?
  • What is another name for the contra angle hand piece?
  • What instrument can be used both to adjust and remove high spots from dental appliances?
  • What is the purpose of a round bur in dental procedures?
  • Which instrument is essential for mixing dental materials during procedures?
  • What is the primary use of dental impression trays in clinical practice?
  • What is a common use for finishing strips in dental procedures?
  • Which tool is described as an x-ray film holding device?
  • What is an auxiliary use of an irrigating syringe in a dental setting?
  • What is the main application of an elevator in dental procedures?
  • Which dental instrument is known for its use in laboratory settings to adjust outside appliances?
  • What is the purpose of a rubber dam frame in dental procedures?
  • For taking a mandibular impression, which tray is used?
  • Which instrument is often required to visualize and access the canal system?
  • Which of the following is primarily used to clean and widen the root canal?
  • For what purpose is a ball burnisher primarily used in dentistry?
  • What is the purpose of a slow speed hand piece?
  • Which instrument is utilized to retrieve and deliver materials in and out of the mouth?
  • What is the primary purpose of a plastic instrument in dental procedures?
  • What instrument helps dentists in placing, sculpting, and contouring composites with ease?
  • Which type of filling material is primarily used for its durability and aesthetic qualities in dental restorations?
  • What instrument is utilized to pack and place resin material during dental procedures?
  • What device holds a set of four cavity detecting x-rays and bitewing x-rays?
  • What is the purpose of a dental sealant?
  • Which tool is used to smooth the amalgam during dental procedures?
  • What is the function of an interproximal brush?
  • What is the purpose of acid etch-gel during dental processes?
  • Which instrument is designed to pack and smooth out amalgam and resin materials?
  • What instrument is used to mix amalgam and capsule cement?
  • What distinctive feature does an acorn burnisher have compared to other dental instruments?
  • Which instrument is used to hold the matrix band during dental procedures?
  • What is the primary function of a full mouth x-ray mount?
  • What is used to evaluate the health of gum tissue?
  • What instrument is typically used to remove decay during dental procedures?
  • What instrument is used to elevate soft tissue from the bone during surgical procedures?
  • Which tool is specifically used to remove air bubbles from impression material?
  • Which instrument is specifically designed to extract first and second mandibular molars?
  • What type of bur is specifically used for adjusting outside appliances, partials, and dentures?
  • What size x-ray film is referred to as size 0?
  • Which dental instrument is called a disposable prophy brush?
  • What is the primary function of a disposable prophy angle?
  • What instrument is used to measure endo files?
  • When would a dentist most likely use an acorn burnisher?
  • Which of the following instruments is used to retain a rubber dam in place?
  • What dental procedure commonly requires the use of an acorn burnisher?
  • Which holding device is used to take an anterior x-ray?
  • What type of impression tray is used to take an impression of anterior teeth?
  • What is the function of a mixing pad in dental assisting?
  • What is used to hold the amalgam before it is applied?
  • Which instrument is used to cut tissue and open a flap during surgery?
  • In dental procedures, what instrument is typically used for measuring pocket depths of periodontal tissues?
  • Why is it important to use the appropriate dental instrument for different procedures?
  • Which instrument is commonly used to smooth interproximal surfaces?
  • What is a common way to demonstrate plaque accumulation to patients?
  • What instrument is primarily used to punch holes in a rubber dam?
  • In root canal therapy, what is the main function of a gutta percha spreader?
  • Which instrument is specifically designed for adjusting and finishing hard materials like amalgam?
  • Which instrument is typically used to gently scrape and clean teeth during a dental cleaning?
  • In which situation would a topical anesthetic be most appropriately used?
  • What device helps to isolate and protect the oral cavity by placing a barrier?
  • Which instrument is used to take an impression of the patient's bite?
  • Which instrument is used in conjunction with a mallet to assist in bone removal?
  • Which apparatus is used to sterilize dental instruments?
  • Which instrument is primarily used to hold fluoride during treatment?
  • What is a sharps container used for in a dental office?
  • What type of filling material is often referred to as tooth colored?
  • For what purpose is a rubber dam clamp used?
  • What is the primary function of an anesthetic syringe?
  • Which tool is essential in closing surgical flaps during dental operations?
  • What role does a shade guide serve in a dental practice?
  • What is the purpose of sutures in dental procedures?
  • What is the primary use of a denture case?
  • What is the purpose of a flexible mixing bowl in dental procedures?
  • Which instrument is utilized to pack the gutta percha in a root canal?
  • What is a study model used for in dental practice?
  • What is the function of disclosing tablets in dental hygiene?
  • What tool is utilized to keep dental instruments organized?
  • What is the main use of a spoon excavator in dental practice?
  • In what scenario would a dental assistant use the acorn burnisher?
  • Which device is utilized to stabilize x-ray films during imaging?
  • What type of instrument is a hemostat?
  • What tool is primarily used to clean out the socket after tooth extraction?
  • What is the function of a needle guard in dentistry?
  • What is used to mark the root canal during procedures?
  • Which instrument is designed to cut both tissue and sutures?
  • Which impression tray would be used to take an impression of a quadrant?
  • Which tool is specifically used for cleaning under dental bridges and braces?
  • What size x-ray film is typically used for adults?
  • What does a dappen dish hold during dental procedures?
  • Which device is used to hold the x-ray film for a bitewing x-ray?
  • What is the purpose of the Hollenbeck instrument in dental practice?
  • What is the main benefit of using a bridge threader in dentistry?
  • How does the Hollenbeck instrument aid in the dental restoration process?
  • What is the primary function of a hemostat in dental procedures?
  • Which instrument is used with gutta percha to seal the root canal?
  • Which x-ray accessory helps with taking proper images of a dentist's work area?
  • What is the main advantage of using a double-ended dental instrument like the Hollenbeck?
  • What color is the x-ray holding device specifically designed for taking x-rays of posterior teeth?
  • Which device is used specifically to hold the film in place for bitewing x-rays?
  • What tool is used to loosen and tighten burs in high-speed handpieces?
  • Which instrument is primarily used for trimming bone?
  • What is typically the material composition of a dental instrument such as the Hollenbeck?
  • Which instrument would be best for removing root tips after an extraction?
  • What is the primary function of an acorn burnisher in dental procedures?
  • What instrument is specifically designed for cleaning interproximally (between the teeth)?
  • Which instrument is used to mix and dispense impression material?
  • Which term refers to the material used to seal the cleaned root canal?
  • What type of bur is employed to remove bone from around the tooth?
  • Which tool is utilized to design a treatment plan?
  • What instrument would a dentist use to effectively perform an incision in soft tissue?
  • Which instrument is employed to locate the canals?
  • Which item can be employed to dispense wax or impression material?
  • Which tool is used primarily for bone shaping and contouring?
  • Which instrument is used to smooth and polish dental restorations?
  • What is a mandrel disc specifically used for in dentistry?
  • What is a plaster spatula primarily used for?
  • What type of dental instrument is a Woodson?
  • What is the purpose of a model trimmer in dental work?
  • Which dental tray is primarily used to take a maxillary impression?
  • Which dental instrument is mainly used for removing or smoothing tooth structure?
  • Which device is used to cure or harden resin and some sealants?
  • What is the function of anterior forceps in dentistry?
  • What is the function of a flexible spatula in dentistry?
  • Which device is used to mount and hold a full set of x-rays?
  • Which dental instrument operates at 400,000 rpm to cut and prepare the tooth?
  • What instrument is designed specifically for mixing cements, bases, and liners?
  • What is the primary use of a shade guide in dentistry?
  • Which tool would you use to remove soft decay from a tooth?
  • Which dental instrument is used for mixing materials, such as impression material?
  • Which device is most effective at evacuating large volumes of debris and fluids from the oral cavity?
  • What instrument is primarily used to reflect, retract, and provide indirect vision during dental procedures?
  • During endodontic procedures, what does the endo stop help with?
  • What type of materials is the Woodson instrument used for, specifically?
  • For what purpose are bitewing tabs primarily used?
  • Which instrument is specifically used to dispense capsule cement?
  • What is the purpose of a surgical currett (spoon excavator)?
  • Which instrument is used to pack amalgam during dental procedures?
  • What device is used to deliver nitrous oxide and oxygen during dental procedures?
  • Which of the following best describes the function of dental hand instruments like the Hollenbeck and Woodson?
  • Which tool is specifically used to hold the articulating paper?
  • What is used to melt gutta percha and place it as a temporary filling?
  • Which of the following is used to protect, dry, and keep the patient calm during dental procedures?
  • Which dental instrument is necessary for isolating a tooth during a procedure?
  • Which tool is designed to smooth between the tooth and aproximal surfaces?
  • What is the function of a burs/bur block in dentistry?
  • What device is used to hold the film stable during x-ray procedures?
  • What is the main function of ronheurs?
  • What instrument is used to apply primer and sealants?
  • Which tool is primarily used to clean hard-to-reach areas and the grooves of the teeth?
  • Which tool is used for putting a base onto study models?
  • What instrument is utilized to separate posterior teeth during dental procedures?
  • Which instrument is specifically designed to remove gum flaps?
  • Which dental instrument is essential for providing visibility and managing fluids during oral surgical procedures?
  • Fluoride is used in dentistry to:
  • Which of the following instruments is used for precise placement of sealants?
  • What is the purpose of an anesthetic in dental procedures?
  • What is the function of vibrators in dental procedures?
  • What is the main use of a scaler in dental procedures?
  • What is the primary use of a fluoride tray?
  • Which instrument is used to trim the impression?
  • What is the purpose of prophy paste in dental care?
  • Which instrument is used to loosen a tooth before extraction?
  • Which instrument is typically used to cut and prepare the tooth?
  • Which device provides high power suction during dental work?
  • In dental assisting, what material is commonly mixed in a flexible mixing bowl?
  • Which instrument is used specifically to adjust high spots on dental restorations?
  • What does a cotton roll holder do in a dental setting?
  • What is the purpose of the x-ray developer/processor?
  • Which bur is utilized for finishing and adjusting resin fillings?
  • Which instrument is primarily used to check the occlusion and bite in dental procedures?
  • What type of anesthetic is typically a gas used to help relax patients during dental procedures?
  • Which anesthetic is typically applied before a needle injection to numb tissue?
  • Which instrument is specifically designed for placing, carving, and contouring amalgam?
  • Which of the following items is most important for the disposal of sharp instruments?
  • What is the purpose of celluliod matrix strips in dental procedures?
  • What is the purpose of using fluoride in dental treatments?
  • Which tool is utilized with bleach to clean out the root canal?
  • What is the usage of a pigstail explorer in dental assisting?
  • What is the purpose of a surgical aspirating tip?
  • What instrument is described as shaping to dry, isolate, and protect the oral cavity?
  • What tool is used to rinse and dry the mouth during dental procedures?
  • What is the primary use for rubber dam forceps?
  • What instrument is used to hold and dispense the amalgam?
  • Which item is specifically used to hold liquids such as prime and bond in dental work?
  • Which instrument is used to inject anesthetic during dental procedures?
  • Which tool is utilized to view developed dental x-rays?
  • What instrument is used to file the bone during dental procedures?
  • Which instrument is used to remove tartar around the gum area?
  • Which function is NOT typically associated with the use of the Woodson instrument?
  • What is the silver filling material commonly used in dentistry called?
  • Which tool is employed with a mallet to remove bone?
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