Violet Mod Final
The dental dam is placed ________ the local anesthetic is administered. A. before B. after C. before or after
after
A(n) _____ is defined as a mixture of two or more metals. A. alloy B. amalgam C. ceramic D. porcelain
alloy
Mixing alloy and mercury together to form a mass is called A. amalgamation or trituration. B. curing. C. condensing. D. percolation.
amalgamation or trituration.
An allergy is an altered state of reactivity in body tissues in response to specific A. anaphylaxis. B. antigens. C. antibodies. D. erythema.
antigens.
When the patient's hands go to his throat when spasms of coughing or choking occur, it indicates A. ventricular fibrillation. B. aspiration of a foreign object. C. postural hypotension. D. syncope
aspiration of a foreign object.
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 A. auto-cured materials. B. light-cured materials. C. dual-cured materials. D. None of the above.
auto-cured materials.
The holes for the maxillary anterior teeth are punched down _______ from the upper edge of the rubber dam material. A. 2 inches B. 1 inch C. 3 inches D. 4 inches
1 inch
The rate of compression for an adult, child, and infant is _____ compressions per minute. A. 80 B. 70 to 90 C. 100 D. 80 to 100
100
When holes are punched in the dental dam, they are spaced _________ mm between the edges of the holes. A. 2.0 to 2.5 B. 3.0 to 3.5 C. 3.5 to 4.0 D. None of the above is correct.
3.0 to 3.5
The cells of the brain are damaged irreversibly after _____ without oxygen. A. 1 hour B. 4 to 6 minutes C. 10 to 20 minutes D. 30 minutes
4 to 6 minutes
When defibrillation is provided within the first 5 minutes of cardiac arrest, there is about a _____ chance that you can save the victim's life. A. 10% B. 25% C. 50% D. 75%
50%
The percentage of cardiac arrest cases caused by ventricular fibrillation is A. 10% to 20%. B. 25% to 50%. C. 50% to 70%. D. 80% to 90%.
80% to 90%.
Before they can be marketed, new dental materials must undergo strict evaluation by the A. FDA. B. ADA. C. MDA. D. ADAA.
ADA.
Which of the following drugs in a basic emergency kit is intended to be used to treat bronchospasm with asthma? A. Ammonia inhalant B. Diphenhydramine (Benadryl) C. Albuterol (Ventolin) D. Nitroglycerin (Nitrostat)
Albuterol (Ventolin)
Single-spill capsules A. contain 600 mg of alloy. B. are used for small restorations. C. should be discarded immediately after use. D All of the above are correct.
All of the above are correct.
Criteria for new restorative materials states that the material must be A. able to protect the tooth and tissues of the oral cavity. B. easily formed and placed restoring comfort, function, and contour. C. not capable of irritating tissues or being poisonous. D. All of the above.
All of the above.
Types of pulpal stimuli can be A. physical. B. mechanical. C. chemical or biologic. D. All of the above.
All of the above.
Which restorative materials are not esthetically pleasing? A. Amalgam B. Composites C. Porcelain D. Both A and B.
Amalgam
The restorative material indicated for use when decay has extended into or close to the pulp is A. liner/varnish. B. base/desensitizer. C. bonding agent. D. Any of the above.
Any of the above.
________ occurs when a metal restoration is touched by a fork. A. Microleakage B. Galvanic action C. Sheer stress D. Corrosion
Galvanic action
Which of the following is an advantage 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.
Glass ionomer releases fluoride after their final setting.
Which of the following types of composite resins is most often used today? A. Microfilled B. Flowable C. Hybrid D. Macrofilled
Hybrid
_____ 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
Polymerization
Which of the following does not describe dry-angle isolation? A. Triangular absorbent pad B. Isolates posterior areas of maxillary/mandibular arches C. Tightly rolled absorbent cotton D. Blocks the flow of saliva and protects tissues in the area
Tightly rolled absorbent cotton
In which method of dental dam placement does one place the clamp and then stretch the dental dam over it? A. One-step method B. Two-step method C. Clamp method D. Frame method
Two-step method
Cardiopulmonary resuscitation (CPR) is also known as A. the Heimlich maneuver. B. basic life support. C. abdominal thrusts. D. vital signs.
basic life support.
An antimicrobial solution should be flushed through the evacuation system hoses A. weekly. B. daily. C. monthly. D. every other day.
daily.
Ideally, composite resin shades should be chosen in A. daylight. B. normal ambient light. C. bright light. D. operatory light.
daylight.
Corrosion of metal restorative materials A. is a reaction that occurs when metal is exposed to products such as temperature, humidity, and saline. B. is easily removed with polishing agents. C. Both A and B. D. does not occur.
Both A and B.
Which of the following is used the most to remove excess fluid throughout a restorative dental procedure? A. Saliva ejector B. High-volume evacuator C. Spittoon D. Both A and B.
Both A and B.
Most dentists prefer a darker color dental dam because it provides A. bright color for good patient acceptance. B. good contrast to tooth structure. C. reduced glare. D. Both B and C
Both B and C
When using an automated external defibrillator (AED), it is important that the operator does not have contact with the patient during A. the application of pads. B. the analyze phase. C. shock. D. Both B and C
Both B and C
Dental dam clamp parts include the bow and the jaws. The bow is the rounded portion of the clamp that extends through the dam and is positioned toward the A. anterior of the mouth. B. distal aspect of the tooth. C. posterior of the mouth. D. Both B and C are correct.
Both B and C are correct.
When the high-speed handpiece is positioned on the occlusal surface of tooth #3, where would the assistant position the HVE? A. Buccal surface of #2 B. Buccal surface of #4 C. Lower left buccal vestibule D. Lingual surface of #3
Buccal surface of #2
Which of the following is not correct regarding administration of cardiopulmonary resuscitation (CPR)? A. CPR is external cardiac compressions to stimulate the heart. B. CPR is rescue breathing to ensure that adequate air is entering the lungs. C. CPR is an emergency support system that should be initiated only after the arrival of a trained emergency medical service rescuer. D. CPR should be initiated immediately.
CPR is an emergency support system that should be initiated only after the arrival of a trained emergency medical service rescuer.
The HVE suction tip should be positioned A. after the dentist positions the handpiece and mouth mirror. B. on the surface of the operative tooth closest to the dentist. C. so that the bevel of the suction tip is perpendicular to the tooth surface. D. so that the edge of the suction tip is even with or slightly beyond the occlusal surface or incisal edge.
D so that the edge of the suction tip is even with or slightly beyond the occlusal surface or incisal edge.
A 1:1 mercury-to-alloy ratio is known as the A. golden proportion. B. Eames technique. C. coupling agent. D. G.V. Black Classification of Cavities.
Eames technique.
The HVE is held using a _________ grasp. A. pen B. palm C. thumb-to-nose D. Either A or C is correct.
Either A or C is correct.
Which is not true of microleakage? A. It is caused by different rates of expansion and contraction of tooth structure and restorative materials. B. It is the minute space between the restoration and the tooth structure. C. It occurs rarely. D. It allows fluid and debris to enter between the restoration and the tooth.
It occurs rarely.
Light-cured composite resin materials are supplied in all of the following ways except which one of the following? A. Light-cured composite resin materials may be supplied in a lightproof syringe. B. Light-cured composite resin materials require mixing. C. Light-cured composite resin materials are supplied in various shades. D. Light-cured composite resin materials contain both the photo initiator and the amine accelerator in one paste.
Light-cured composite resin materials require mixing.
A patient receiving dental treatment starts complaining of a severe pain in the chest. The medical history indicates the patient has angina. Which medication is the patient is likely to have? A. Insulin B. Dilantin C. Nitroglycerin D. Bronchodilator inhaler
Nitroglycerin
Which of the following is recommended following the occurrence of an emergency in the dental office? A. Don't do anything as it may alarm subsequent patients. B. Record full documentation of the details of the emergency. C. File a "Police Report" with the local law enforcement agency. D. Call the local newspapers to publicize the occurrence.
Record full documentation of the details of the emergency.
Stretching a rubber band is an example of which of the following type of stress? A. Compressive B. Tensile C. Shear D. All of the above.
Tensile
Which of the following statements is true of the composition of tooth-whitening materials? A. Most tooth-whitening products are made from a bleach (sodium hypochlorite)-based ingredient. B. The tooth-whitening solution comes in a single concentration of 37%. C. When the product contacts the teeth, it allows oxygen to enter the enamel and dentin, which whitens the colored substances. D. The structure of the tooth is altered by whitening materials.
When the product contacts the teeth, it allows oxygen to enter the enamel and dentin, which whitens the colored substances.
Which of the following would be the material of choice as an insulating base as well as a sedative base? A. Zinc phosphate B. Zinc oxide-eugenol C. Polycarboxylate D. All of the above.
Zinc oxide-eugenol
The instrument used to smooth the amalgam surface is A. a condenser. B. a burnisher. C. a carver. D. articulating paper.
a burnisher.
CPR differs slightly in adults versus children and infants because A. a child has a smaller body size. B. a child needs a smaller amount of oxygen. C. an Automated External Defibrillator (AED) cannot be used for a child. D. a precordial thump should be used with an adult, but not a child.
a child has a smaller body size.
Any unexplained chest pain should be treated as A. epigastric distress. B. syncope. C. angina. D. a potential acute myocardial infarction.
a potential acute myocardial infarction.
For adhesion to take place, _____ film thickness is desired. A. a thick B. a thin C. a medium D. any
a thin
The smear layer is composed of A. particularly dense enamel at the dentino-enamel junction. B. a very thin layer of debris remaining on the dentin after cavity preparation. C. an oxygen-inhibited layer on the surface of cut dentin. D. a very porous layer of cut ends of dentinal tubules.
a very thin layer of debris remaining on the dentin after cavity preparation.
Because a medical emergency can happen at any time, it is important for the dental assistant to A. check the patient's pulse every 15 minutes. B. be alert and continuously observe the patient to watch for problems. C. check the patient's blood pressure throughout the procedure. D. do both A and C.
be alert and continuously observe the patient to watch for problems.
A definitive sign or symptom of hyperglycemia is A. thirst. B. breath that smells sweet. C. confusion. D. falling asleep.
breath that smells sweet.
To block the flow of saliva and to protect the tissues, a dry-angle isolator is placed on the A. floor of the mouth under the tongue. B. hard palate. C. buccal mucosa over the Stensen's duct. D. tongue.
buccal mucosa over the Stensen's duct.
The 2010 CPR sequence of steps C-A-B stands for A. care, access, and breath. B. circulation, airway, and breathing. C. chest compressions, airway, and breathing. D. chest compressions, access, and breathing.
chest compressions, airway, and breathing.
Before beginning dental treatment, an important way to prevent a dental emergency is to be certain the patient has: A. taken his or her medications. B. eaten. C. completed or updated his or her medical history. D. signed a consent form.
completed or updated his or her medical history.
One difference in the cavity preparation of amalgam versus composite is that 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.
composites require the use of a bonding system.
The three most common methods used to isolate a specific area of the mouth include A. mouth prop, index and middle fingers, and gauze square. B. cotton rolls, dry angles, and the dental dam. C. cotton roll, dental dam, and index and middle fingers. D. mouth prop, gauze squares, and cotton rolls.
cotton rolls, dry angles, and the dental dam.
Materials that are versatile in their uses, such as for specialized dental bases, include A. dental cements. B. dental varnishes. C. dental liners. D. calcium hydroxide.
dental cements.
An example of enamel bonding is the placement of a A. dental sealant. B. dental varnish. C. calcium hydroxide. D. dental base.
dental sealant.
Dental restorative materials that are applied, while pliable, to a tooth or teeth and can be adapted, carved, and finished are classified as A. indirect restorations. B. direct restorations. C. crowns and bridges. D. implants.
direct restorations.
Most emergencies in the dental office occur A. when the patient arrives or immediately thereafter. B. when the patient completes the health history form. C. during or immediately after administration of local anesthesia. D. after the procedure is completed and the patient is dismissed.
during or immediately after administration of local anesthesia.
All of the following are advantages of amalgam over composite as a restorative material except A. cost. B. moisture control. C. esthetics. D. strength.
esthetics
The two main categories of seizures are A. localized and disseminated. B. widespread and focal. C. generalized and partial. D. partial and complete.
generalized and partial.
A porcelain casting is chosen over metal castings because of each of the following except that it A. can improve the esthetic appearance of anterior teeth. B. has the ability to match the color of natural tooth structure. C. is a good insulator. D. has a high thermal coefficient of expansion.
has a high thermal coefficient of expansion.
A ______________ is used to remove solid debris from the oral cavity during a dental procedure. A. high-volume evacuator (HVE) B. saliva ejector C. cuspidor D. surgical suction
high-volume evacuator (HVE)
Abnormally deep and fast breathing is termed A. hyperglycemia. B. hypoactive. C. hypoglycemic. D. hyperventilation.
hyperventilation.
A patient blood pressure reading of 80/46 mm Hg indicates A. hypertension. B. hypoglycemia. C. hypotension. D. hyperventilation.
hypotension
A dental liner is placed A. along the 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.
in the deepest area of the tooth preparation.
An emergency telephone number list should A. be posted in a single, central area. B. list only 9-1-1. C. include emergency medical services (EMS) personnel, local police, and firefighters. D. be memorized.
include emergency medical services (EMS) personnel, local police, and firefighters.
The part of the dental dam clamp that encircles the tooth and must be firmly seated to stabilize the clamp is the A. jaws. B. bow. C. wings. D. forceps holes.
jaws.
The ________ is punched as the largest size hole (#5) to accommodate the dental dam clamp that fits on the ________ tooth. A. anchor hole; keyhole B. keypunch hole; anchor C. septum hole; restorative D. anterior hole; most anterior
keypunch hole; anchor
The piece of dental floss or dental tape that should always be attached to the bow of the dental dam clamp prior to clamp placement is called a(n) A. tie. B. stabilizing cord. C. ligature. D. anchor.
ligature.
To adjust the occlusion on a recently place amalgam, the patient should be instructed to bite ______ on the articulating paper. A. firmly B. and rotate repeatedly C. lightly D. and open and close again
lightly
All of the following are advantages of using cotton rolls for isolation except A. ease of application. B. limited retraction. C. no additional equipment needed. D. flexible for easy adaptability to areas of the mouth.
limited retraction.
Frequent removal of debris as it accumulates during a procedure is called A. limited-area rinse. B. removal of plaque. C. temporary lavage. D. breath freshener.
limited-area rinse.
All of the following are specific guidelines for positioning the HVE except A. position the bevel to be parallel to the tooth surface. B. place the HVE after the dentist positions the handpiece and mirror. C. position the HVE tip on the surface of the operative tooth closest to the dental assistant. D. keep the HVE tip edge even with or slightly beyond the occlusal or incisal surface.
place the HVE after the dentist positions the handpiece and mirror.
The universal signal for choking is A. coughing. B. laughing. C. turning blue. D. placing the hands to the throat.
placing the hands to the throat.
A noble metal used for cast restorations in dentistry is A. silver. B. iron. C. platinum. D. zinc.
platinum.
During a medical emergency, the dentist and staff are responsible for providing emergency care until A. the emergency situation is resolved and the patient recovers. B. more qualified personnel arrive. C. someone calls 9-1-1 and emergency care is dispatched. D. a physician is contacted by telephone.
more qualified personnel arrive.
The most frequently used drug in a medical emergency is A. glucose. B. epinephrine. C. oxygen. D. ammonia inhalant.
oxygen
The purpose of inverting the dental dam into the gingival sulcus is to A. stabilize the dam. B. gain better visibility. C. prevent saliva leakage. D. provide patient protection.
prevent saliva leakage.
Erythema is another term for A. Pain B. Redness C. Swelling D. Infection
redness
The HVE has three main purposes: (1) retract tongue and cheek; (2) keep mouth free of saliva, blood, debris, and water; and (3) A. reduce the bacterial aerosol spray caused by the high-speed handpiece. B. keep the patient's mouth fresh. C. keep oral tissues from dehydrating. D. None of the above.
reduce the bacterial aerosol spray caused by the high-speed handpiece.
All of the following are indications for using the saliva ejector except A. control saliva and moisture accumulation. B. cementation of crown. C. removal of solid debris. D. fluoride treatments.
removal of solid debris.
All of the following are true statements about in-office tooth whitening except it A. can usually be done in one treatment. B. requires a light-accelerated bleach. C. requires multiple treatments. D. involves isolation of soft tissue.
requires multiple treatments.
The dental assistant grasps the evacuator in the ________ hand(s) when assisting a right-handed dentist. A. right B. left C. right or left
right
Dental varnish is used in the cavity preparation to A. seal dentinal tubules and reduce leakage around a restoration. B. insulate the pulp from thermal changes. C. stimulate growth of reparative dentin. D. obtund pain.
seal dentinal tubules and reduce leakage around a restoration.
A temporary restorative material should be selected to restore a tooth that has A. sensitivity. B. a missing cusp. C. been prepared for a cast restoration. D. been prepared for a porcelain veneer.
sensitivity.
The dental dam material between the holes of the punched dam is called the A. ligature. B. bow. C. jaws. D. septum.
septum.
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
silver-tin
Etchant removes the _____ layer in preparation for bonding. A. varnish B. cavity liner C. smear D. sclerosing
smear
Calcium hydroxide liner is a frequently used liner because it A. stimulates production of reparative 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.
stimulates production of reparative dentin.
All the following are specific techniques recommended for the performance of chest compressions except A. pushing hard and fast. B. allowing complete chest recoil after each compression. C. stopping for 30 seconds after each compression. D. avoiding excessive ventilation.
stopping for 30 seconds after each compression.
The ADA and the National Institute of Health-Nations Administration _____ the use of amalgam as a posterior restorative material. A. discourages B. supports C. forbids D. has no opinion on
supports
A(n) _____ is what a patient tells you regarding how he or she feels or what he or she is experiencing; a(n) _____ is what you observe in a patient. A. symptom; sign B. sign; symptom C. observation; notation D. notation; observation
symptom; sign
Desensitizers used to help prevent hypersensitivity should be used A. in large amounts. B. in contact with soft tissue. C. to seal all affected dentinal tubules. D. All of the above are correct.
to seal all affected dentinal tubules.
During a dental procedure, the saliva ejector should be placed _______ the tongue on the __________ where the dentist is working. A. over; same side B. over; opposite side from C. under; same side D. under; opposite side from
under; opposite side from
The plastic, U-shaped frame is placed _______ the dam; the metal Young frame and the Ostby frame are placed ________ the dam. A. under; outside B. under; under C. outside; under D. outside; outside
under; outside
CPR is not performed until the patient is determined to be A. unconscious. B. unresponsive. C. choking. D. conscious.
unresponsive.
To ensure an accurate ratio of alloy and mercury, the best protocol to follow is to A. use premeasured capsules. B. measure the powder and liquid accurately. C. use reusable capsules with a pestle. D. use a mercury dropper and pellet and hand mix in a mortar.
use premeasured capsules.
