General Chairside (DA)

Question 1

Retention pins

Answer 1

add strength to a core buildup.
(Retention pins add strength to a core buildup. Gingival retraction temporarily displaces the gingival tissue to facilitate an accurate final impression) retention pins are placed in vital teeth. A Lentulo spiral is an endodontic instrument used to place cement in the pulpal canal.

Question 2

Which agent is prescribed to reduce patient fears and tension?

Answer 2

Antianxiety

Antianxiety agents are prescribed to reduce patient fears and tension.

Question 3

A 10-year-old patient would likely have which mixed dentition?

Answer 3

Permanent mandibular central and lateral incisors, primary second molars, permanent mandibular canines, permanent first molars.( At the age of 10 years, a child has the permanent mandibular central and lateral incisors, primary second molars, permanent mandibular canines, and permanent first molars but would not yet have the permanent premolars or second molars).

Question 4

Mouth mirrors and dental burs are which type of dental supply

Answer 4

Expendable
(Expendable dental supplies, such as mouth mirrors and dental burs, are of relatively low cost, and are used up in a short time. Disposable supplies are used once before being discarded. Nonexpendable supplies are smaller pieces of equipment that are replaced when worn out or broken. Major equipment is costly and large and will depreciate over a longer period of time.)

Question 5

A stabilizing finger rest that reduces the possibility of slipping or traumatizing tissue is a

Answer 5

fulcrum
(A fulcrum is a finger rest used when holding an instrument or a handpiece for a specified time. It provides safe practice for the operator.

Question 6

The average range of the body’s oral resting temperature is

Answer 6

97.6° to 99° F.

( Normal adult body temperature is considered to be 98.6° F but may range between 97.6° and 99° F.

Question 7

Which instrument condenses gutta-percha points in the root canal during endodontic treatment?

Answer 7

Spreader/plugger

( The spreader or plugger is used to compact gutta-percha points as they are placed in the root canal.

Question 8

Aspirin is a(n

Answer 8

mild analgesic

(Aspirin is capable of providing a mild analgesic effect.

Question 9

High-volume evacuation results in each, EXCEPT one. Which is the EXCEPTION?

Answer 9

Increases the patient’s desire to rinse
(High-volume evacuation does not increase the patient’s desire to rinse as it removes fluids rapidly from the patient’s mouth.

Question 10

Which is a thermoplastic material used to stabilize an anterior clamp?

Answer 10

Dental compound

( Dental compound is a rigid thermoplastic impression material that can be used to stabilize an anterior clamp.

Question 11

Which is the correct sequence for placing sealants?

Answer 11

Clean, isolate, etch

(The correct sequence for placing a sealant is to clean, isolate, and then etch the tooth surface.

Question 12

In which procedure is the patient usually placed in an upright position?

Answer 12

Taking diagnostic impressions
(While diagnostic impressions can be taken in a supine position, most operators prefer to take diagnostic impressions in an upright position to avoid any problems with the impression materials going into the throat area

Question 13

Which generally have two roots?

Answer 13

Mandibular first molars
(All mandibular molars have two roots. Maxillary molars have three roots, whereas maxillary second premolars and central incisors usually have one.

Question 14

Which is a narcotic analgesic?

Answer 14

Paracetamol

( Demerol is classified as a narcotic drug, and its extended use should be avoided

Question 15

The impression automix system is used for each, EXCEPT one. Which is the EXCEPTION?

Answer 15

Putty wash
(Putty wash is prepared with a completely different process than the syringe tray technique for which the automix system has been designed.

Question 16

The assistant’s operating zone, with a right-handed operator, is

Answer 16

2 to 4 o’clock.
(For a right-handed operator, the assistant is seated in the 2 to 4 o’clock position. Unlike the doctor’s position, the assistant’s position remains the same regardless of the arch being treated.

Question 17

The prescription for a medication taken 3 times a day uses which notation?

Answer 17

TID

(The Latin ter in die (TID) means “three times a day.

Question 18

Which gypsum product is commonly used to fabricate a diagnostic model?

Answer 18

Plaster

( Plaster is especially cost effective and commonly used to fabricate dental models.

Question 19

Which number is NOT included in the list of emergency telephone numbers posted next to each telephone throughout the office?

Answer 19

Patient emergency numbers
(Patient emergency numbers are not posted in the office. Only those numbers that pertain to the office needs are posted near the telephone.

Question 20

A short-acting local anesthetic lasts less than

Answer 20

30 minutes
( A short-acting local anesthetic will last less than 30 minutes

Question 21

An alert of serious illness or allergy should be noted in which manner on the clinical record?

Answer 21

Inside the record in a discreet but obvious manner such as with a small brightly colored label
(To protect a patient’s privacy, information about a serious illness or allergy must be placed inside the record in a discreet but obvious manner such as with a small brightly colored label

Question 22

Which is NOT a measurement used in constructing a complete denture?

Answer 22

Reversion( Reversion is not a term used in dentistry in relation to denture construction

Question 23

The results of most vital bleaching procedures last

Answer 23

3 to 5 years.

(Tooth whitening procedures are not permanent; results usually last for 3 to 5 years

Question 24

A periodontal pocket marker appears similar in design to

Answer 24

cotton pliers.( A periodontal pocket marker is similar to cotton pliers but has beaks at right angles to enable the marking of the gingival tissue.

Question 25

Which endodontic instrument is used to curette the inside of the tooth to the base of the pulp chamber?

Answer 25

Long-shank spoon(The long shank of an endodontic spoon enables the operator to curette the inside of the tooth to the base of the pulp chamber most efficiently

Question 26

In an extraction, the dentist uses which instrument before extraction forceps?

Answer 26

Periosteal elevators(A periosteal elevator is used to detach the gingival tissues before an extraction forceps is placed around the tooth. The surgical curette is used after an extraction to scrape the interior of the socket. The bone file is used after the rongeur, which trims alveolar bone, to smooth the surface of trimmed bone.

Question 27

The dental assistant’s responsibility in an emergency situation is to

Answer 27

provide appropriate support in implementing emergency procedures.(The dental assistant works with the rest of the dental team to recognize the symptoms and signs of a significant medical complaint and to provide appropriate support in implementing emergency procedures.

Question 28

Placing a wooden wedge in the gingival embrasure area for a Class II restoration does NOT

Answer 28

provide a missing proximal wall.( The matrix band, not wooden wedge, is used to provide a missing proximal wall; the wedge then adapts the band to the cervical margin in order to prevent overhangs and maintain proximal contact.

Question 29

When assisting in collection efforts, it is illegal to telephone the debtor after

Answer 29

8 pm.(According to the Fair Debt Collection Practice Act, it is illegal to telephone a patient after 8 pm to collect a debt.

Question 30

Which medical emergency occurs most frequently in the dental setting?

Answer 30

Syncope( Syncope is the most common medical emergency in the dental office; angina, hyperglycemia, and anaphylaxis occur less frequently than syncope.

Question 31

Which would NOT be used for smooth surface carving in an amalgam procedure?

Answer 31

Cleoid discoid carver( The cleoid discoid carver is designed for use on the occlusal surface, not smooth surfaces such as the buccal, lingual, mesial, and distal.

Question 32

The retromolar area is reproduced in the _____ impression.

Answer 32

mandibular(The retromolar area, lingual frenum, tongue space, and mylohyoid ridge are reproduced in the mandibular impression.

Question 33

If a patient displays symptoms of hypoglycemia and is conscious, what is the first thing you should ask the patient?

Answer 33

“When did you last eat, and did you take insulin?(: You must first determine when the hypoglycemic individual last ate and if insulin has been taken, before proceeding with any treatment.

Question 34

Which is an anticoagulant?

Answer 34

Coumadin( Coumadin is an anticoagulant, or blood thinner

Question 35

The tip of the composite curing light should be held at an angle of __ degrees to the tooth

Answer 35

90( The tip of the composite curing light should be held at a 90-degree angle to the tooth. The depth of cure is affected by the angle of the light.

Question 36

Buffer time in the office schedule is reserved for

Answer 36

emergency patients.(Buffer time in the office schedule is reserved for scheduling emergency patients. Other appointments, meetings, and the lunch hour are scheduled independently, leaving the buffer time open for emergencies

Question 37

The surgical removal of diseased gingival tissue is

Answer 37

gingivectomy.(A gingivectomy is the surgical removal of diseased gingival tissues, whereas a gingivoplasty is the surgical reshaping and contouring of these tissues. Osteoectomy and osteoplasty involve bony tissue.

Question 38

Which describes a physical protection associated with saliva?

Answer 38

Dilutes and removes acid components from dental plaque( Saliva provides a cleansing effect by physically diluting and removing acid components from dental plaque. Saliva also provides chemical and antibacterial protections by facilitating remineralization, neutralizing acids, and reducing the bacterial count.

Question 39

Which is considered a vital record?

Answer 39

Patient clinical chart( Records are categorized according to their importance in the office. The patient’s clinical chart is considered a vital record; without it, the patient history and treatment would not be available.

Question 40

The final polish of a light-cured composite can be implemented

Answer 40

as soon as the material is polymerized.(Restorative composite material may be finished as soon as the material has polymerized. Special finishing disks and points are available for finishing the restoration immediately, without any deleterious effect on the restoration.

Question 41

Which suture is absorbable?

Answer 41

Plain catgut( Plain catgut is a common absorbable suture material. Silk, nylon, and polyester fiber are nonabsorbable suture materials.

Question 42

How many teeth are in the arch of a deciduous dentition?

Answer 42

10(The deciduous dentition contains 20 teeth, 10 in each arch.

Question 43

C-A-B in basic life support stands for

Answer 43

chest compressions, airway, breathing.(By changing the sequence to C-A-B, chest compressions are initiated sooner and ventilation only minimally delayed until completion of the first cycle of chest compressions.

Question 44

When taking blood pressure, the exhaust valve should be released at a rate of

Answer 44

2 to 3 mm Hg per second.( When taking blood pressure, the exhaust valve must be released slowly, at a rate of 2 to 3 mm Hg per second, to produce an accurate reading.

Question 45

If humidity is high while mixing a final impression material, the setting time may be

Answer 45

decreased.( High humidity will cause the impression material to set more quickly; thus, the setting time is decreased.

Question 46

Which gypsum product is commonly used to make diagnostic models?

Answer 46

Plaster(Plaster is the most porous of the gypsum products and is cost effective for use in the construction of diagnostic models.

Question 47

An orthodontic positioner is designed to

Answer 47

retain the teeth in their desired position.(An orthodontic positioner is a custom appliance that fits over the patient’s dentition after orthodontic treatment to retain the teeth in their desired position and permit the alveolus to rebuild support around the teeth before the patient wears a retainer

Question 48

Adding cold water to an alginate mix will have which effect on the setting time?

Answer 48

Increase( When cooler temperature water is used, it will take the mix longer to set; thus, the setting time is increased

Question 49

The dentist applies direct digital pressure above the root apex in which test?

Answer 49

Palpation(The palpation test is performed by applying pressure to the mucosa above the apex of the root and noting any sensitivity or swelling. The percussion test is performed by tapping on the tooth in question; thermal sensitivity, or the cold test, is performed by isolating the tooth in question and applying a source of cold to determine a response. Electric pulp testers test a tooth’s vitality with a small electric stimulus.

Question 50

Intermittent blinking, mouth movements, blank stare, and unresponsiveness are symptoms of

Answer 50

petit mal seizure.(Common symptoms of a petit mal seizure include intermittent blinking, mouth movements, blank stare, and being unresponsive to surroundings. This condition does not result in loss of consciousness, as does the grand mal seizure.

Question 51

A double-ended knife, with kidney-shaped blades, used in periodontal surgery is a(n

Answer 51

Kirkland knife(The Kirkland knife is a common periodontal surgical instrument with double-ended kidney-shaped blades

Question 52

Which occurs when an alginate impression is stored in water or a very wet paper tow

Answer 52

Imbibition(The condition in which an alginate impression absorbs additional water is imbibition. Syneresis would result in the impression shrinking and becoming distorted. Alginate is a type of hydrocolloid impression material. Polymerization is the curing reaction of elastomeric impression materials.

Question 53

Each is included in the service record when new equipment is purchased, EXCEPT

Answer 53

name of person responsible for preventive maintenance.(The service record does not include the name of the person responsible for preventive maintenance; however, the date of purchase, name of the supplier, warranty expiration date, and model and serial numbers are included

Question 54

When the use of a vasoconstrictor is contraindicated, the retraction cord is impregnated with _______ and the cord may have a _______ agent applied to it to control bleeding.

Answer 54

aluminum chloride; hemostatic: Aluminum chloride is used instead of epinephrine in retraction cord when a health contraindication is evident; it may have a hemostatic agent applied to it to control bleeding at the treatment site.

Question 55

Which advantage is NOT associated with email or text messaging recall systems?

Answer 55

It guarantees an immediate response from the patient.( Immediate patient response is an advantage of a telephone recall system, not an email or text messaging recall system. The advantages of an email or text messaging recall system include the following: an email or text reaches its destination in a matter of seconds after it is sent, even if the destination is across the world.

Question 56

The aspirating syringe is used in the administration of local anesthetic

Answer 56

to avoid injecting into a blood vessel.( The aspirating syringe is used in the administration of local anesthesia to avoid injecting the anesthetic into a blood vessel.

Question 57

Which does NOT facilitate four-handed dentistry?

Answer 57

Use a wide-winged patient chairback.( Wide-winged dental chairs prohibit the operator and assistant from getting close to the patient, thus causing undue back and neck strain.

Question 58

RDAs are the daily essential nutrients needed to prevent deficiency. RDA stands for

Answer 58

recommended dietary allowance.(The Recommended Dietary Allowances (RDAs) focus on the amount of essential nutrients needed on a daily basis to prevent deficiency diseases.

Question 59

Walkout statements

Answer 59

are provided to patients who do not pay in full(: Walkout statements are given to patients who do not pay in full; they provide important information regarding the current account balance. Walkout statements improve cash flow because they speed payments

Question 60

Which is used in a deep cavity preparation to prevent thermal shock?

Answer 60

Dental base(In a deep tooth preparation, dental base cement provides insulation to protect the tooth from temperature and other environmental factors. Varnish is a type of sealer, used to close dentinal tubules and reduce microleakage. Desensitizer primarily seals dentin tubules and is ideal for all direct and indirect restorations.

Question 61

The angle of the bevel of the HVE tip should always be

Answer 61

( parallel to the buccal or lingual surfaces.(The beveled tip of the HVE should always be placed parallel to the buccal or lingual surface of the tooth, so the assistant can remove fluids from the mouth more efficiently

Question 62

Which instrument is used to remove debris or granulation tissue from a surgical site?

Answer 62

Surgical curette( The surgical curette is designed with spoon-like working ends that enable it to easily remove debris and granulation tissue from the surgical site

Question 63

Performing an expanded function that is not allowed under the Dental Practice Act is.

Answer 63

punishable as a criminal act.( Performing procedures that are not legal is practicing dentistry without a license, which is a criminal act

Question 64

An antibiotic

Answer 64

kills or inhibits the growth of microorganisms(The primary function of an antibiotic is to kill or inhibit the growth of microorganisms.

Question 65

According to Black’s classification, decay diagnosed on the incisal edge of anterior teeth and the cusp tips of posterior teeth is Class

Answer 65

VI.(Class VI decay is caused by abrasion and defects, and it is diagnosed on the incisal edge of anterior teeth and the cusp tips of posterior teeth.

Question 66

A porcelain-fused-to-metal crown is being seated. The assistant will mix the cement to a _____________ or ____________ consistency.

Answer 66

cementation; primary(When seating a porcelain-fused-to-metal crown, the cement must be mixed to a thin consistency, referred to as a cementation consistency. This consistency is also referred to as the primary consistency rather than secondary, which is a thicker, firmer material.

Question 67

The process by which the living jawbone naturally grows around an implant is

Answer 67

osseointegration.( Living healthy bone attaches to a dental implant through osseointegration.

Question 68

Which ingredient in local anesthetic solution prolongs the effect of the anesthetic?

Answer 68

Vasoconstrictor(The vasoconstrictor has the ability to prolong the effect of the anesthetic by decreasing the blood flow in the immediate area of the injection.

Question 69

A right-handed dentist is doing a preparation on 30MO. The dental assistant places the HVE tip on the

Answer 69

lingual of #30.( The HVE tip is placed on the surface of the tooth nearest the assistant; thus, the tip would be placed on the lingual of #30.

Question 70

Which member of the dental team is legally required to report suspected child abuse?

Answer 70

Dentist(The dentist is the only member of the dental team legally required to report suspected child abuse, although all members of the team have a moral responsibility to report suspected abuse to the dentist.

Question 71

Which color is the nitrous oxide tank?

Answer 71

Blue(The nitrous oxide tank is blue, the oxygen is green, and the fire extinguisher is red.

Question 72

After a surgical procedure, the patient is NOT instructed to

Answer 72

rinse vigorously after 6 hours(Rinsing vigorously after a surgical procedure will facilitate bleeding and may cause a clot to come lose. Pressure should be used for at least 30 minutes, and strenuous work and physical activity should be restricted for a day

Question 73

A mesioocclusobuccal restoration is abbreviated in the progress notes or chart as

Answer 73

MOB(Each surface is given an initial, and in the naming of this restoration, the surfaces are in the sequence of mesial, occlusal, and buccal—thus, MOB

Question 74

Unconsciousness, increased body temperature, rapid heartbeat, and increased blood pressure are symptoms of

Answer 74

a grand mal seizure.(: Common symptoms of a grand mal seizure include unconsciousness, increased body temperature, rapid heartbeat, and increased blood pressure. These symptoms may be preceded by an aura or by localized spasm or twitching of muscles

Question 75

A three-unit bridge that replaces one missing tooth consists of

Answer 75

two abutments and a pontic(A three-unit bridge that replaces one missing tooth is made of two abutments and one pontic. The pontic is an artificial tooth that replaces the missing tooth. The two abutments serve as support for the pontic

Question 76

The dentist retires to another state and closes the practice. The entire staff is released from employment and the records remain in the office, but the patients are not notified of the dentist’s retirement. Failure to notify the patients of the changes in the practice is

Answer 76

abandonment.(The dentist has an obligation to inform the patients of any change in the practice ownership. If the dentist fails to notify the patients of the changes in the practice, the dentist is guilty of abandoning the patients

Question 77

Which wax is used to extend the borders of an impression tray?

Answer 77

Utility( Utility wax is a soft wax, available in strips, sticks, and rope; it is used to extend the borders of an impression tray. Inlay wax is hard, brittle, and used to create a pattern of an indirect restoration on a model. Sticky wax is very brittle and used in the fabrication of castings. Baseplate wax is hard, brittle, and used to fabricate dentures

Question 78

Which instrument is used to measure the depth of the gingival sulcus?

Answer 78

Periodontal probe (A periodontal probe is an instrument with marked calibrations on the working tip that allows for measuring the depth of the gingival sulcus

Question 79

The likelihood of acute fluoride toxicity from controlled community water is

Answer 79

nonexistent.(There is no danger of acute fluoride toxicity from ingesting controlled community water

Question 80

Which artery is the most common site for taking a dental patient’s pulse

Answer 80

Radial(The radial artery is the most common site for taking a dental patient’s pulse, as it is readily accessible and accurate. The carotid or brachial arteries are an alternative if the pulse cannot be obtained at the radial site.

Question 81

Which instrument is used to trim soft tissue during an oral surgery?

Answer 81

Surgical scissors(Surgical scissors are used to trim soft tissue. Suture scissors are designed to only cut suture material. A surgical curette is used after extractions to scrape the interior of the socket to remove abscesses or diseased tissue. A scalpel is used to make a precise incision into soft tissue

Question 82

How long can an IRM restoration last?

Answer 82

Several months (An IRM restoration can last for several months, owing to its reinforced zinc oxide–eugenol composition, which gives it strength.

Question 83

The most frequently used substance in a medical emergency is

Answer 83

oxygen.( Glucose, epinephrine, and ammonia inhalants are included in an emergency kit, but oxygen is the most frequently used drug in a medical emergency.

Question 84

In which notation are the permanent teeth numbered from 1 to 32?

Answer 84

Universal(The Universal numbering system begins with the maxillary right third molar as tooth No. 1 and ends with the mandibular right third molar as tooth No. 32, whereas the other systems use either brackets or other numeric patterns to denote tooth numbering

Question 85

Which is NOT considered a food group according to MyPlate?

Answer 85

Oils(Oils are NOT a food group, but they provide essential nutrients. Therefore, oils are included in USDA food patterns but not in MyPlate.

Question 86

A vital bleaching tray is constructed with

Answer 86

lighter-gauge plastic.( Lighter-gauge plastic is used to fabricate a vital bleaching tray, without a spacer or handle. Rigid, heavy-gauge plastic, a spacer, and a handle are needed to construct an impression tray. A mouth guard is constructed with flexible, heavy-gauge plastic.

Question 87

A fixed bridge can be completed in how many appointments?

Answer 87

2: (A fixed bridge can be completed in two appointments: preparation and “try-in”/cementation

Question 88

Cross-contamination between components of a two-paste composite system will

Answer 88

: cause the material to harden.( Placing the contents of one composite component into the other will trigger a chemical reaction causing the material to harden.

Question 89

.

When is the needle guard removed?

Answer 89

After the syringe has been placed in the operator’s hand(: For safety, the needle guard should be removed after the syringe has been placed in the operator’s hand.

Question 90

Removing bacteria, necrotic tissue, and organic debris from a root canal is called

Answer 90

debriding the canal(To debride is to remove foreign material and dead or damaged tissue from a wound; debriding the root canal removes bacteria, necrotic tissue, and organic debris

Question 91

A patient’s medical history indicates that the patient has a prosthetic heart valve. Because of a higher incidence for bacterial colonization, what medication will commonly be prescribed for this patient?

Answer 91

Antibiotic(An antibiotic is usually prescribed for a patient with a prosthetic heart valve to prevent bacterial endocarditis

Question 92

A tray is set up from

Answer 92

left to right.( A tray is set up from left to right based on how instruments are transferred and used throughout a dental procedure.

Question 93

When the operator is working on the labial surface of tooth #9, the HVE tip is held

Answer 93

on the lingual surface of the tooth being prepared.( Placing the HVE tip on the lingual surface of this tooth permits the assistant to efficiently remove fluids without interfering with the operator’s handpiece.

Question 94

Which handpiece operates forward and backward and supports a variety of attachments?

Answer 94

: Low-speed( The low-speed handpiece can operate both forward and backward and is able to hold a variety of angles and contra-angles for slow cutting, polishing, and abrading.

Question 95

Which is commonly used for irrigation during endodontic debridement?

Answer 95

Sodium hypochlorite(Sodium hypochlorite, commonly referred to as bleach, is the common solution used for irrigating a canal during endodontic debridement. Sterile water and salt solutions are not used.

Question 96

Which instrument is strictly used to scale surfaces in the anterior region of the mouth?

Answer 96

: Straight sickle scaler(Because of its design, the straight sickle scaler can be used only in the anterior region of the mouth. To scale the posterior teeth with a sickle scaler, the modified version would need to be used.

Question 97

Selecting the shade of an anterior esthetic restoration is NOT advised

Answer 97

immediately after cavity preparation.( Shade selection should be completed before cavity preparation as the tooth may dry out and not appear as natural in color as it did before the preparation and cavity medication. Natural lighting and patient involvement are highly advised when selecting the shade of an esthetic restoration.

Question 98

Which prevent cholesterol from oxidizing and damaging arteries?

Answer 98

Antioxidants (In addition to lowering the dietary intake of cholesterol, increasing the intake of antioxidants may be beneficial as they prevent cholesterol from oxidizing and damaging the arteries. Antioxidant vitamins are A and E and beta-carotene. Many fruits and vegetables also contain naturally occurring antioxidants.

Question 99

Which statement is FALSE regarding acid etching of enamel for a composite restoration?

Answer 99

The acid-etching agent is flooded onto the surface and rubbed vigorously.(According to the manufacturer’s directions, the acid-etching agent is not rubbed vigorously on the surface.

Question 100

A prescription that states 1 tab QID prn pain indicates the patient should take one tablet

Answer 100

4 times a day as needed for pain.( The Latin quater in die (QID) means “four times a day,” and prn stands for pro re nata, meaning “as circumstances may require or as necessary.” Thus, the patient is directed to take one tablet 4 times a day as needed for pain.

Question 101

Which term is used for the blood pressure cuff and dial equipment?

Answer 101

Sphygmomanometer(The sphygmomanometer is the blood pressure cuff and dial

Question 102

Necrotic tissue is removed from the lining of the periodontal pocket in which procedure?

Answer 102

Gingival curettage( Gingival curettage is the procedure that involves scraping or cleaning the gingival lining of the pocket with a sharp curette to remove necrotic tissue from the pocket wall

Question 103

Which statement is true when using a Tofflemire matrix band and retainer?

Answer 103

The matrix retainer is placed on the buccal; the wedge is placed from the lingual at the involved proximal surface( For ease of use, the operator places the matrix retainer on the buccal surface of the prepared tooth, and the wedge is placed from the lingual at the proximal surface involved

Question 104

A hemisection is the surgical removal of

Answer 104

the root and crown by cutting through each lengthwise.( A hemisection is a procedure in which the root and crown are cut lengthwise and removed. Removal of the apical portion of the root is an apicoectomy. The removal of diseased tissue through scraping is apical curettage. The removal of one or more roots, without removing the crown, is a root amputation.

Question 105

The second, soft tapping, sound the heart produces is the

Answer 105

diastolic reading(The diastolic reading is the second, soft tapping, sound the heart produces.

Question 106

The first step in preventing a medical emergency is to be certain the patient has

Answer 106

completed and updated his or her medical history.(To prevent a medical emergency in the dental setting, it is necessary to obtain a complete medical history on each patient at regular intervals. Without an accurate and updated health history, the dental professional is unaware of potential health risks.

Question 107

The patient is instructed to breathe into a paper bag or cupped hands to manage

Answer 107

hyperventilation.( Management of hyperventilation includes instructing the patient to breathe into a paper bag or cupped hands to increase the carbon dioxide supply and restore the proper oxygen and carbon dioxide levels in the blood.A hyperventilating patient is often anxious or apprehensive and may display rapid, shallow breathing, lightheadedness, rapid heartbeat, and a panic-stricken appearance.

Question 108

Which best describes the purpose and consistency of a dental cement used for the final seating of a porcelain-fused-to-metal crown?

Answer 108

Cementation and primary consistency(The final seating of a porcelain-fused-to-metal crown requires a cement of luting or primary consistency, which strings about 1 inch. The purpose of seating the crown is for final cementation.

Question 109

Surgical retraction is a procedure referred to as

Answer 109

electrosurgery.( Electrosurgery, using a special electric tip, is a common method of performing gingival retraction. This technique quickly cuts away the excess tissue and controls the bleeding.

Question 110

Which procedure removes defects and restores the normal contour of bone?

Answer 110

Osseous surgery(Osseous surgery is performed to remove bony defects and restore normal contours to the bone. Gingivectomy, gingivoplasty, and frenectomy are soft tissue surgeries.

Question 111

Which procedure is NOT performed to remove bony defects or restore normal bony contour?

Answer 111

Gingivoplasty:Osseous surgery, osteoplasty, and osteoectomy are bone procedures to either remove defects or restore the normal contour to the bone. A gingivoplasty is the reshaping and recontouring of gingival tissues.

Question 112

A patient presents with a fractured amalgam restoration, but time in the schedule does not permit placement of a permanent restoration. Which cement mixture will be required?

Answer 112

Temporary cement to a secondary consistency: Because a permanent restoration will be placed at a later date, a temporary restoration will be placed at this appointment. The patient will be biting on this restoration during normal mastication, and thus the temporary cement must be a firm heavy material as in a secondary consistency.

Question 113

The dental team is completing an amalgam procedure on 4MOD. Which statement is true?

Answer 113

Two wedges and anatomical carvers would be used: Two proximal walls are involved; thus, two wedges will be needed to secure the matrix band. Anatomical carvers will be used because the occlusal surface is involved.

Question 114

Which tooth has two roots and five cusps, three on the buccal and two on the lingual?

Answer 114

Mandibular first molar;( The mandibular first molar has two roots and five cusps—three buccal and two lingual

Question 115

The water-to-powder ratio of an adult mandibular impression is

Answer 115

2:2(The water-to-powder ratio used for an adult mandibular impression is generally two measures of water and two scoops of powder.

Question 116

The only nutrients that can build and repair body tissues are

Answer 116

: proteins.

(Proteins are the only nutrients that can build and repair body tissues.

Question 117

A genetic abnormality in which there are defects in the enamel formation is

Answer 117

amelogenesis imperfecta.(Amelogenesis imperfecta is a genetic abnormality characterized by defects in the enamel. Amelogenesis refers to the formation of enamel, and imperfecta, an abnormality.

Question 118

Which is NOT a component of the clinical record?

Answer 118

Recall card(The recall card is a separate record or database from the clinical chart. It is based on this record or database that patients are notified of their next recall visit

Question 119

A normal adult respiration rate is

Answer 119

10 to 20 breaths/minute( Normal adult respiration is 10 to 20 breaths/minute; more than 20 breaths per minute exceeds the normal rate.

Question 120

.

When taking impressions, the next step after seating the patient and placing the patient napkin is to

Answer 120

explain the procedure to the patient( Prior to taking impressions, the patient must be informed of the procedure and the process must be explained so that there is complete cooperation.