DENTAL ASSISTING EXAM PREP (MOCK EXAM) (SMARTER DA)

Which of the following visual characteristics can be observed in patients who have habitual bruxism?

cracked teeth

true or false. A stroke is related to the lack of oxygen in parts of the heart.

false

According to G.V. Black's caries classification, a Class VI lesion can be found on:

the cusp tip of a molar

Which of the following is NOT true about dental sealants?

they are only indicated for occlusal surfaces

A patient presenting with decay between the maxillary central incisors is considered to have:

class III carious lesions

Which term describes the maxillary incisors overlapping the mandibular incisors in a centric occlusion?

overbite

In which of the following situations should utility gloves be worn?

instrument sterilization

Which of the following statements on dental records is CORRECT?

entries are legal documents

The etched enamel will become:

frosty

The polishing cup should be placed initially on the:

tooth

The lingual tooth structures of a patient who suffers from bulimia can be affected by:

erosion

What does amalgamation refer to?

the mixing of the alloy and mercury

Which of the following is NOT a function of a post-surgical periodontal dressing?

to minimize pain

In order of most sensitive to least sensitive, which one is correct?

bone marrow

skin

blood

muscle

How can calculus be removed from a denture surface?

soak in household detergent

The dental assistant uses a disclosing solution prior to reviewing personal oral hygiene instructions

to help identify areas of plaques

Sharps injuries can be prevented with which type of gloves?

utility

How often should the patient's health history be updated?

at each office visit

According to dental caries charting and the classification of cavities, a Class VI lesion can be found on:

the cusp tip of a molar

Why are periotomes used?

to sever the periodontal ligament

When assisting with an amalgam procedure, which of the following steps comes first?

place the amalgam capsule into the amalgamator

What does amalgamation refer to?

the mixing of the alloy and mercury

During instrument transfer, how should the dental assistant hold the instruments?

near the working end

true or false In emergency situations, the carotid artery is the best artery for assessing the pulse.

true

According to the CDC (Center for Disease Control) guidelines, instruments that contact but do not penetrate soft tissue or bone are classified as:

semi-critical instruments

When curing a composite, the dental assistant should wear:

goggles from the manufacturer

When evacuating during a restorative procedure, where should the evacuator tip be placed?

one tooth distal to the tooth being worked on

The following are adverse effects of polishing EXCEPT:

generates heat which could possibly damage the tooth

What is the most likely reason for a permanent tooth to have a "chalky" appearance located in the enamel?

the tooth has incipient areas

When using the International (FDI) System for identifying a specific tooth, the _____________ number is written first.

quadrant

Patients who wear porcelain crowns should avoid:

Acidulated fluoride

Glutaraldehyde is a _____-level disinfectant.

high

The accumulated MPD (Maximum Permissible Dose) of a 30-year-old dental assistant is:

60 rem

Xerostomia may be produced by any of the following EXCEPT:

-use of vitamin supplements

-sjogren syndrome

-anti-hypertensive medication

-radiation therapy

use of vitamin supplements

Putting the patient into the Trendelenburg position is advised for which of the following medical emergencies?

syncope

In the Trendelenburg position following a medical emergency, the body is positioned with:

the body in the supine position with the feet elevated slightly

true or false. Extracted teeth should be placed in a leak-proof container labeled with a biohazard symbol.

true

Which of the following is TRUE regarding copper in amalgams?

1. decreases setting expansion

2. increases setting expansion

3. minimizes corrosion

4. option 2 and 3

5. option 1 and 3

option 2-3

What type of wax is used around the periphery of an impression to form the base or the wall for the gypsum product that will be used to pour up the impression?

boxing wax

ndications for sealant placement include:

consumption of hight cariogenic food

In endodontic therapy, which material fills the pulp space?

gutta-percha

A well-triturated amalgam will appear:

shiny

The following materials can all be used as final impression materials EXCEPT:

-condensation silicone

-polyether

-polysulfide

-polystyrene

polystyrene

The maxillary left molar is lingual to the mandibular left molar, and the maxillary right molar is buccal to the mandibular right molar. What type of occlusion is this?

crossbite on the left side only

Which material in burcan change the color of composite?

stainless steel

Which of the following is a contraindication for sealant placement?

-occlusal caries

-inter-proximal caries

-deep grooves

-deep pits

inter proximal caries

Intermittent strokes are used to avoid:

overheating

The basic rule to follow in the dental office with the goal of protecting the health care professional against many contaminants is called:

universal precautions

Among the following options, pain related to angina will not affect the:

-arm

-mandible

-shoulder

-hips

hips

The swelling on the mouth indicates a:

ranula

What is the initial step in the maintenance of the high-speed hand piece after patient care?

with the unit water on, allow for the hand piece to run

According to the Universal tooth numbering system, which of the following teeth is considered succedaneous?

#13 the left permanent second premolar

Which material reduces sensitivity of a tooth?

zinc oxide-eugenol

Which material appears the MOST radiopaque?

-amalgam

-cement

-porcelain

-liner

amalgam

Which of the following is true regarding the structure the arrow is pointing at?

-bony growth

-mandibular tori

-benign condition

-all the above

all the above

During the etching process for dental sealant application, the patient touched the surface with his tongue. Which of the following steps should be taken next?

- proceed with sealant application

-re-etch the entire surface for a longer period of time

-re-etch the surface for a shorter amount of time

-rinse the mouth with water and dry the tooth to apply sealant

re- etch the surface for a shorter amount of time

The assistant inadvertently pokes a hole in her glove. The assistant should:

change the gloves immediately after washing hands

When viewing a Tofflemire matrix retainer, which knob on the retainer is responsible for initially securing the band?

the outer knob

Which of the following types of decay is commonly found in the elderly population due to the recession of gum tissue and bone loss?

root decay

Blood pressure of 140-159/90-99 mmHg is categorized as:

hypertension stage 2

If a patient has a three-unit bridge, what type of device can help clean this prosthetic?

waxed floss with floss threader

A periodontal dressing is used for all the following purposes EXCEPT:

-to preserve blood clot

-to prevent debris accumulation

-to increase patient comfort

-to accelerate wound healing

to accelerate wound healing

Amalgam waste should be disposed of in a:

container that follows the sate protocol

Coronal polishing is indicated when:

• Removal of light plaque.

• Placement of sealants.

• Placement of dental dam.

• Placement of orthodontic bands.

• Placement of crowns and bridges.

• Removal of temporary cement residues.

• Surface cleaning before the selection of a tooth shade guide.

If packages in the sterilizer are too close together, the primary concern is that it may:

prevent some instrument surfaces from being reached by the sterilizing agent

tue or false. Aspirin alone has one of the greatest impacts on the reduction of MI mortality.

true

Which of the following statements best describes how the dental assistant should use a surgical suction tip during a procedure?

the surgical suction tip should be introduced into patients oral cavity only at the end of the procedure to prevent the suction from allowing the dentist to view the surgical side during the procedure

A facebow:

determines the positional relationship of the maxillary arch to the tempromandibular joints

Before autoclaving the instruments, the clinician should first:

remove debris from the instrument using an automated process

Which of the following is the only proven method for monitoring the sterilization process?

biological monitoring

Dental radiographs should be prescribed:

depending on the patient's condition

What is the purpose of the rongeur?

to trim the alveolus

Enamel sealants are indicated for:

deep occlusal pits

1 rem is equal is how many Sievert?

0.01 sievert

What type of gypsum is used to produce study models?

lab plaster

What position should hinged instruments be placed in, during autoclaving?

the opened position

What type of pressure should be used for polishing?

• Use intermittent strokes.

• Use light wiping strokes.

• Use overlapping strokes.

• Use water.

• Rest for 1-2 seconds between strokes.

Sealants most commonly prevent:

class I caries

true or false statements. Extracted teeth are considered medical wastes which should be placed in a leak-proof container labeled with a biohazard symbol. Extracted teeth may be returned to the patient.

both statements are true

Which of the following tests is MOST widely used in conjunction with electric pulp testing to provide a definitive result for pulp vitality?

cold test

Which of the following instruments will be used to pack in the amalgam material after it is placed within a preparation?

condenser

true or false. Bradypnea is a slow respiratory rate.

true, Bradypnea is a slow respiratory rate, below the normal rate. On the other hand, tachypnea is a rapid respiratory rate, above the normal rate.

geographic tongue

Which of the following methods of sterilization generates the least heat?

cold sterilization

which of the following results can create a positive spore test in a properly- functioning sterilizer?

-overloading

-failure of adequate package separation

-excessive packaging material

-all the above

all of the above

Which of the following actions is suggested for a patient with recurring asthma?

keep the inhaler within reach during the dental procedure

Which of the following is NOT considered to be a PPE equipment?

-protective clothing

surgical mask

-heavy duty utility gloves

-all of the above are PPEs

all of the above are PPEs

Which method of sterilization is LEAST recommended if the clinician needs to keep the sharpness of instruments?

steam autoclave

The clinician should stay at a ____ degree angle away from the source of radiation.

90-135

Enamel sealants are indicated for:

deep occlusal pits

the type of replica in dentistry that models multiple teeth and soft tissues is

model

Coronal polishing is not used for the removal of

calculus

The initial stage of demineralization has a higher concentration of:

streptococcus mutans

Which material appears the most radiopaque?

amalgam

What type of gypsum is used to produce study models?

lab plaster

Which material in burcan change the color of composite?

stainless steel

When evacuating during a restorative procedure, where should the bevel of the evacuation tip be placed?

parallel to the buccal or lingual surfaces of the teeth

Which of the following periodontal surgical procedures describes "lifting" of the gums?

flap surgery

What type of data will be found in a patient's clinical chart?

procedures performed

In order of least sensitive to most sensitive, which one is correct?

muscle, blood, oral mucosa, bone marrow