NDAEB Practice Questions

The ABCD's of basic life support stand for:

- Airway - Breathing - Circulation - Defibrillation

Oral manifestations of HIV/AIDS can include:

- HIV Gingivitis - Kaposi's Sarcoma - Hairy Leukoplakia

Exogenous stains are caused by an environmental source and are classified into subdivisions, including which of the following:

- Intrinsic stains - Extrinsic stains

What are the three types of Pulpal stimuli?

- Physical - Mechanical - Biological

The periodontal ligament is capable of:

- Remodelling - Resorption

Which of the following must be used to protect dental personnel from the occupational risks of nitrous oxide by reducing the N2O released into the treatment room?

- Scavenger System - Patient mask that fits well and doesn't leak

The different levels of consciousness and unconsciousness are referred to as stages of anesthesia; these stages include:

- Stage 1 (anesthesia) - Stage 2 (excitement) - Stage 3 (general anesthesia)

Which bacteria are linked to dental caries?

- Streptococcus Mutans - Lactobacilli

Which of the following are Bacterial diseases?

- Tuberculosis - Legionnaires Disease - Tetnus - Syphilis

Self-Cured sealant materials are supplied as a two-part system that includes:

- a base - a catalyst

Each member of the dental team should be required to have which of the following knowledge and skills before handling an emergency in the dental office?

- ability to obtain & record VS - current credentials for performing the Heimlich maneuver - current credentials to perform basic life support, or CPR

The function of a low strength base is:

- act as a barrier to irritating chemicals - provide a therapeutic benefit to the tooth - replace lost dentin

Amalgam is condensed to:

- aid in removing any excess mercury - compact the material tightly into the preparation

Extrinsic stains can be removed from the teeth by:

- air-powder polishing - rubber cup polishing - bristle brushes

What anatomy should be present in an impression?

- all erupted teeth - retromolar pads - attached gingiva - all frenums

Treatment for Syncope may include:

- ammonia inhalant - placing pt in a sub-supine position - calling 911

Warning signs of oral cancer include:

- any sore in the mouth that doesn't heal - numbness in or around the oral cavity - white or rough-textured lesions on the lips or oral cavity

The calcium hydroxide cavity liner is mixed with a(n):

- ball-shaped applicator - spatula

When taking a wax bite, the patient is instructed to:

- bite into wax - close normally - grind their teeth back & forth

What are brand names of varnishes?

- caulk - coplite - cavaseal - handiliner

What are brand names of liners?

- cavitec - dycal - hydrex - vitrebond - life - pulprotex

Parathesia, the condition in which numbness lasts after the effects of the local anesthetic solutions should have worn off, may be caused by:

- contaminated anesthetic solution - trauma/injury to nerve sheath during injection or surgery - hemorrhage into/around nerve sheath

The vacuum former is used to create a:

- custom tray - mouth guard - night guard vital bleaching tray

Who is responsible for providing care if a medical emergency involving a patient takes place in the dental office?

- dentist - DA - office staff

An embrasure may diverge in which direction(s)?

- facially - occlusally - apically

Dental sealants should be used as part of a preventative program that includes:

- fluorides - dietary considerations - plaque control

In the dental office, sedatives may be used:

- for a very nervous patient - for a procedure that will be long or difficult - for a mentally challenged patient

What happens to the supporting tissue during Luxation?

- fracture of the labial/palatal alveolar bone - partial/total separation of the periodontal ligament

The most common noble metals used for crown and bridge are:

- gold - palladium - platinum

Zinc Oxide Eugenol (ZOE) is widely used as a base because it:

- has soothing effect on tooth - can last up to 6 months when mixed properly - reduces post-op sensitivity

Smokeless tobacco presents a serious health hazard because users may have:

- high rates of periodontal disease & tooth loss - precancerous leukoplakia - 400 - 500 times more cancers of the pharynx, larynx & esophagus

The dentist must consider many sources of information when making a final diagnosis. The sources include:

- historical, clinical & radiographic - laboratory, surgical & therapeutic - microscopic & differential findings

What are the symptoms a patient would display when experiencing hypoglycemia?

- hunger - sweating - mood change

Disclosing solution can be used for:

- identifying areas of plaque - evaluating the effectiveness of the polishing

A veneer is a thin layer of tooth-coloured material that is placed on the facial surface of a prepared tooth and is used for:

- improving appearance of teeth that are abraded, eroded or discoloured - closing a diastema - improving alignment of teeth

The Class V restoration is classified as a smooth surface filling and can be found on the...

- incisors - canines - premolars

What are the conditions that would indicate the need for restorative dentistry?

- initial or recurring decay - replacement or failed restorations - abrasion or wearing away of tooth structure

The process of removing unhealthy tooth structure while leaving a limited amount of healthy structure for the tooth to maintain a restoration is known as cavity preparation. This process involves which of the following steps?

- initial preparation - outline, resistance, retention, convenience form - final preparation

Dentin:

- is capable of regeneration - is an excellent thermal conductor - forms the bulk of the tooth

What are the components of Amalgam?

- liquid mercury - metal alloy (50% mercury, 22-32% silver, 14% tin & 8% copper)

Sealants may vary in:

- method of polymerization - colour - whether they contain fillers

What instruments make up a basic tray set up?

- mirror - explorer - cotton pliers

What instruments are part of a simple surgery tray set up?

- mirror - explorer - cotton pliers - syringe - cheek/tongue retractor - tooth elevator - surgical suction - forceps - surgical curette - surgical suction

Before trimming study models, the casts should be:

- moist - room temperature

Anaphylaxis can be life threatening and the signs and symptoms include:

- nausea/vomiting - loss of consciousness - shortness of breath

Fordyce's spots or granules are:

- normal variations that sometimes appear on the buccal mucosa - small yellowish elevations

A benign tumor is:

- not life threatening - a neoplasm

Sealants shouldn't be used in which of the following situations:

- obvious dental decay or proximal surface decay - primary teeth that will be lost soon - poor patient cooperation in the dental chair or lack of pits & fissures

Topical anesthesia is available in the form of:

- ointments & liquids - sprays - patches

When IRM is supplied as a powder and liquid, it is mixed:

- on a treated paper pad - using a thick stiff flexible spatula

The list of emergency phone numbers posted next to each phone throughout the office should include:

- police/firefighters - ems - nearest hospital, physicians, oral surgeons

Gloves must be worn when handling:

- preliminary impressions - final impressions - laboratory cases

What are the purposes of a temporary crown coverage while the permanent crown is being made?

- preserve space - provide contact - provide biting surface - prevent sensitivity

What are the indications for the use of a topical anesthetic?

- prior to injections - prior to rubber dam clamp placement - prior to suture removal - prior to per dressing placement - for ulcers - to prevent gagging - prior to deep cleaning

When using the model trimmer, always wear:

- protective eyewear - gloves

What are three unique qualities of Calcium Hydroxide?

- protects pulp from chemical irritation - stimulates production of secondary dentin - compatible with all types of materials

The functions of low strength bases are to:

- provide mechanical support for a restoration - act as a barrier to irritating chemicals - provide a therapeutic benefit to the tooth

What would you need to educate the client about regarding topical anesthetic?

- purpose - benefits - rate of onset - duration - taste & numbness

The DA's responsibility in an emergency situation is:

- recognize signs & symptoms of a significant medical complaint - to provide appropriate support in implementing emergency procedures

The dental assistant's responsibility in an emergency situation is to:

- recognize the symptoms and signs of a significant medical complaint - provide appropriate support in implementing emergency procedures

The AED is used to:

- reestablish proper heart rhythm by defibrillation - shock the heart - monitor the pt's heart rhythm

What makes Glass Ionomer cements so popular?

- release fluoride - biocompatible - can be used as a base, liner or luting cement

Documentation records of pain & anxiety analgesia may include:

- review of patients health hx - time anesthesia began & ended - adverse events or pt complaints

What method(s) can be used to reduce biofilm?

- self-contained water reservoirs - chemical treatment regimens - microfilms - daily draining & drying of lines

Symptoms of an acute myocardial infarction include:

- short of breath - nausea/vomiting - mildi-severe chest pain

Tooth morphology is the study of:

- size of the teeth - shape of the teeth - form & structure of the teeth

Ectoderm differentiates into:

- skin - lining of the oral cavity

Which of the following are functions of the tongue?

- speech - cleansing of the oral cavity - taste - swallowing

Restorative burs are made from what material?

- steel - stainless steel - tungsten carbide - diamond grit

Dental cements are widely used as luting agents. To meet this what properties are required?

- sufficient strength - biologically compatible

What are 3 factors necessary to the formation of dental Caries?

- susceptible tooth - diet rich in fermentable carbohydrates - specific bacteria

What are the 3 factors necessary for the formation of dental caries?

- susceptible tooth - diet rich in fermentable carbohydrates - specific bacteria

Composite material is comprised of:

- synthetic resins - filler particles

Why may orofacial piercings be dangerous?

- teeth could be cracked & nerve damage could occur - infection & uncontrollable bleeding could occur - the tongue could swell & close off the airway

Zinc oxide-eugenol cement can be used as a:

- temporary cement - sedative base

The colour-coding system for anesthetic cartridges allows the practitioner to select the correct anesthetic solution by distinguishing:

- the correct ratio of solution - the correct brand of solutions

Sealants have been proved an effective way to prevent the development of dental caries and are indicated:

- through the caries-active period (ages 6-15) - for teeth with deep pits & fissures - for some adults

The parts of the anesthetic syringe include:

- thumb ring, finger grip, and finger bar - barrel and threaded tip - harpoon and piston rod

Coronal Polishing is a technique used:

- to remove plaque and stains from coronal surfaces of the teeth - before placement of dental sealants and orthodontic bands - before placement of the dental dam and before acid etching

When assessing a medical emergency, the DA should remember that the physical changes observed can include:

- unconsciousness - convulsions - respiratory distress

The most important measures in preventing an airway obstruction during dental treatment include:

- use of HVE - use of dental dam - placement of a throat pack (gauze placed at the base of throat during surgery)

To be certain the anesthetic solution is not injected into a blood vessel, the dentist:

- uses an aspirating syringe - always aspirates before depositing any solution

The class II restoration requires a matrix band to act as an artificial wall that must make proper contact with the adjacent tooth; this is accomplished by...

- using a wedge - contouring the centre of the matrix band in the proximal contact area - the dentists design of the inter proximal cavity preparation

A dental assistant is expected to produce accurate diagnostic casts. This is achieved by paying strict attention to three essential factors which are:

- water to powder ratio - mixing time - water temp

When are retention pins used as a part of the direct restorative process?

- when decay has extended beyond the normal size and shape of the cavity preparation - when a stronger system for retaining and supporting the restoration is needed - when one or more cusps of the tooth is missing

What percent of sodium fluoride is contained in a non-prescription fluoride rinse?

0.05%

The safe amount of fluoride typically added to city water is:

0.5 PPM

Type ____ zinc phosphate cement is designed for the accurate seating of precision castings.

1

The lengths of the needles used in dentistry are:

1 and 15/8 inches

What is the appropriate curing time for light cured dental sealants?

10 seconds

At approximately what age is the last primary tooth shed?

12

How many molars are in the permanent dentition?

12

How far below the gingival margin should a matrix band be seated?

1mm below gingival wall, if not.. use extension band

Normal-set alginate has a working time of:

2 minutes

How many teeth are in the primary dentition?

20

In the Universal Numbering System, the mandibular left second premolar is number:

20

The CDC recommends purging the lines for ______ between patients?

20-30 seconds

The cells of the brain are irreversibly damaged after _____ without oxygen.

4-6 minutes

When defibrillation is provided within the first 4 minutes of cardiac arrest, there is about a _____ chance that you can save the victims life..

50 %

A short-acting local anesthetic agent can last from:

60 - 180 minutes

In the Universal Numbering System, the maxillary right later incisor is number:

7

What is a radiolucent restoration?

Acrylic

The type of immunity that occurs when one contracts a disease & produces memory cells is:

Active Natural

A smooth impression tray is prepared with a(n) __________ before placing the final impression material within the tray.

Adhesive

Which impression material should be selected to take an impression on a patient for a diagnostic model?

Alginate

Which of the following materials would not be used to take a final impression for the creation of a prosthetic device?

Alginate Hydrocolloid

The _____ is the extension of bone that supports the teeth in their functional positions.

Alveolar Process

The _______ are the enamel-producing cells.

Ameloblasts

A hereditary abnormality in which there are defects in the enamel formation is:

Amelogenesis Imperfecta

Antibiotic premedication is the standard of care for the patient with:

An artificial heart valve

What medical emergency would require the use of epinephrine?

Anaphylaxis

Nitroglycerin would be administered to the patient who is experiencing:

Angina Pectoris

What is the positive electrode inside the x-ray tube?

Anode

A dental laboratory device that replicates the movement of the TMJ is a(n):

Articulator

If more water is added during the mixing of gypsum, the study model will:

Become weaker

Another term for premolars is:

Bicuspids

The centric relationship of the upper and lower arches is obtained in the ________ registration.

Bite & Occlusal

Which wax is used to form an imprint of the teeth?

Bite registration

Which of the following is not an example of an intrinsic stain?

Black line stain

Which of the following types of lesions extends above the mucosal surface?

Blister

In the ______ method, the impression is surrounded with wax before pouring.

Box pour

Which of the following waxes is used to help contain the stone and form a base when pouring an impression?

Boxing wax

What artery is the blood pressure cuff placed on?

Brachial

An oral habit consisting of involuntary gnashing, grinding & clenching of the teeth is:

Bruxism

The term ______ means toward the cheek:

Buccal

The height of contour is the:

Bulge or widest point on a specific surface of the crown

Which of the following generally responds well to bleaching procedures?

Caffeine Stain

________ may be used under all types of restorative materials.

Calcium Hydroxide

What condition is caused by yeast-like fungal infection?

Candidiasis

The bony ridge over the facial portion of the canine is the:

Canine Eminence

According to recent studies, periodontal disease is associated with an increased risk of developing which of the following conditions:

Cardiovascular disease

How are food that contain sugars or other carbohydrates that can be metabolized by bacteria in plaque categorized?

Cariogenic

What is the negative electrode inside the x-ray tube?

Cathode

The term to describe the condition when there is maximal stable contact between the occluding surfaces of the maxillary and mandibular teeth is:

Centric Occlusion

Jacquelyn, the dental patient, appears to have lost control of the muscles on one side of her face following dental treatment. She also has a headache, difficulty swallowing, and impaired speech. Which of the following is the most likely cause of the symptoms Jacquelyn is experiencing?

Cerebral Vascular accident

The ______ is the constricted area where the anatomic crown and the tooth of the tooth meet.

Cervix

The lobe on the lingual surface of a permanent incisor is called a(n)

Cingulum

The _____ fibre groups forms a band around the neck of the tooth

Circular

A matrix must be used to create a temporary wall for which of the following classifications of tooth restoration?

Class II, III, and V

The first step in placing dental sealants is to _______ the surface

Clean

The matrix is used for anterior CR or GI restorations...

Clear Plastic

In regard to dental insurance what does the term "Carrier" refer to?

Client's insurance company

If a dental patient is allergic to penicillin, according the ADA, the pharmaceutical drug of choice for antibiotic premedication is:

Clindamycin

That portion of the tooth that is visible in the mouth is known as the _____ crown of the tooth:

Clinical

In the ______ bite registration technique, the patient is instructed to close their teeth together before the impression material is placed.

Closed

If a dental assistant ignored her employer's instructions and worked outside her scope of practice, which of the following would she be violating?

Code of Ethics

The corners of the lips are called the:

Commissures

The usual material of choice for class III and Class IV restorations is ...

Composite Resin

Crushing pressure that pushes a material together is applied by:

Compressive Stress

Polysiloxane is a type of _________ silicone impression material.

Condensation

The ________ is the region of the mesial or distal surfaces of a tooth that touches the adjacent tooth in the same arch.

Contact point

Which instrument is used to remove sub gingival calculus?

Curette

The curvature formed by the maxillary and mandibular arches in occlusion is known as the:

Curve of Spee

When mixing zinc phosphate cement, a cool, dry slab will _______ the setting time.

Decrease

What is the term for the dissolution of calcium & phosphate from the tooth?

Demineralization

What supply would require a MSDS?

Dental Cement

Class II occlusion is also known as:

Distoclusion

What step should the dental assistant take before applying topical fluoride?

Dry teeth thoroughly

The earliest signs of tooth development appear:

During the 1st Trimester

The hardest calcified substance in the body is:

Enamel

Healthy gingiva attaches to the teeth on the enamel surface just above the cervical line of the tooth. This is known as the _____ attachment

Epithelial

Process by which the teeth move into the oral cavity:

Eruption

The process through which the tooth comes into the oral cavity and tries to maintain occlusions is known as:

Eruption

The gold alloy used for cast-removable partial dentures is:

Extra hard, type 4

What terms are used to classify stain by location?

Extrinsic & Intrinsic

To avoid air bubbles in a final impression, the light body material is:

Extruded, keeping the tip in the material

A porcelain fused to a metal crown would be designed so the porcelain would always be on which surface?

Facial

A DA can start, monitor and remove IV sedation for a dental patient..

False

A general tip for sealant materials is to store them in a refrigerator:

False

A medical emergency in the dental office must be documented with all of the pertinent details (including extensive notes about what happened, tx provided, and pt's condition when they left the office), and a report must be filed with the local EMS..

False

Anesthetic solutions are extremely effective for patients with a tooth or soft tissue infection..

False

Antidepressants are often used in dentistry to alleviate or reduce anxiety and pain

False

Canal walls are widened 1mm during an RCT procedure

False

Coronal polishing is the complete removal of calculus, debris, stains and plaque from the teeth

False

In general, third molars are larger in size than any other molar.

False

It is safe to use dental unit water to irrigate a surgical site.

False

Luxe means to place back in the socket.

False

Patients with a hx of heart conditions such as angina, recent heart attack, recent coronary artery bypass surgery, severe hypertension, and untreated or uncontrolled CHF should always use a local anesthetic with a vasoconstrictor

False

The ultrasonic scaler is needed for a coronal polish...

False

True or False: Aesthetic dentistry is primarily devoted to improving the appearance of teeth; specific conditions that indicate a need for aesthetic treatment include the replacement of a partial denture.

False

When mixing a gypsum product, the warmer the water the _______ the set.

Faster

The numbering system in which the first digit indicates the quadrant and the second number indicates the tooth is the _______ system.

Federation Dentaire International Numbering System (FDI)

In relation to ergonomics in a dental business office, there are how many classifications of motion?

Five

What is not an irrigating solution used in RCT?

Formaldehyde

_________ extends from the base of the sulcus to the mucogingival junction.

Free Gingivae

A ______ is a narrow fold of mucous membrane passing from a more fixed to a movable part.

Frenum

When two metals touch in the mouth, a small shock is created. This is known as:

Galvanic action

What is the condition in which a pattern on the tongue changes?

Geographic Tongue

The interdental gingiva is also known as:

Gingival Papilla

A healthy _____, which is the space between the free gingiva and the tooth, rarely exceeds 2-3 mm in depth.

Gingival Sulcus

Inflammation of the supporting tissues of the teeth that begins with _______ can progress into the connective tissue and alveolar bone that supports the teeth and become ______.

Gingivitis; Periodontitis

Exothermic means to _________ heat.

Give off

Ketac Cement is a:

Glass Ionomer

__________ cement bonds directly with enamel, dentin, and metallic materials.

Glass Ionomer

What luting cement is the most biologically compatible?

Glass Ionomers

_______ is the general term used to describe inflammation & changes to the tongue.

Glossitis

When ready for use, properly mixed polycarboxylate cement should appear:

Glossy

Prior to exposing a dental radiograph, placement of the lead apron over the client protects which one of the following tissues?

Gonadal

What is the permanent thermoplastic material used to obturate the pulpal canal during RCT?

Gutta Percha

What is used to fill the canals in a RCT procedure?

Gutta Percha

What category of dental product is plaster of paris?

Gypsum

Plaster of Paris and dental stone are examples of:

Gypsum products

Which systemic risk factors could contribute to periodontal disease?

HIV/AIDS, diabetes & heart disease

What instrument would you transfer to the dentist to carve anatomy back into the interproximal portion of an amalgam restoration?

Hollenback

Impression materials that dislike moisture are said to be:

Hydrophobic

Which of the following is precipitated by stress and anxiety; may manifest in rapid, shallow breathing, lightheadedness, a rapid heartbeat, and a panic-stricken appearance; and is treated by having the patient breathe into a paper bag or cupped hands?

Hyperventilation

_______, which is precipitated by stress & anxiety, may manifest in rapid & shallow breathing, lightheadedness, rapid heartbeat and a panic-stricken appearance and is treated by having the pt breathe into a paper bag or cupped hands?

Hyperventilation

A patient in the third trimester of pregnancy might experience _______ while lying in a supine position in the dental chair?

Hypotension

Which material would be set out in preparation for placement of a temporary restoration?

IRM

A condition called ______ will result if an alginate impression absorbs additional water by being stored in water or in a very wet paper towel:

Imbibition

Any tooth that remains unerupted in the jaws beyond the time at which it should normally erupt is referred to as:

Impacted

Which type of consent is given when a patient enters a dentist's office?

Implied Consent

A negative reproduction of the patients dental arch is referred to as a(n):

Impression

How would a dental assistant store scrap amalgam?

In a tightly closed container

The _____ is a pear-shaped structure formed by dense connective tissue & located directly posterior to the maxillary central incisors.

Incisive Papilla

The single rooted teeth located at the front of the mouth are the:

Incisors

How do diet sodas relate to dental caries?

Increased acid in the mouth

Before surgery, a patient is explained the procedure and then signs an authorization for treatment. What is the process called?

Informed consent

Nitrous Oxide/Oxygen analgesia use in dentistry dates back to 1844 and is also known as:

Inhalation sedation

When mixing the dental cements, the powder to liquid ratio depends on the:

Intended use of the material

A(n) ________ restoration is expected to last about 6 months

Intermediate

The area between adjacent tooth surfaces is called the:

Interproximal Space

The primary purpose of _______, the fibre group of the periodontal ligament, is to aid in resisting tipping & twisting of the tooth.

Interradicular

A gypsum product that is able to withstand extreme heat is:

Investment material

Alginate impression material is a(n) _______ hydrocolloid

Irreversible

What impression material would be used to take the preliminary impression?

Irreversible Hydrocolloid

What type of impression materials are alginate materials?

Irreversible Hydrocolloid

Copal Varnish ______ acceptable for placement under an amalgam restoration.

Is

If using a self-cure composite resin system, what will occur if the containers are cross-contaminated?

It will cause the material to harden

What does kVp stand for?

Kilo Voltage Peak

Which bones make up part of the orbit at the inner angle of the eye?

Lacrimal

The compact bone that lines the tooth socket is known as the:

Lamina Dura

Which type of rotary cutting instrument shank has a small groove at the end that locks into the contra angle attachment?

Latch

What is used in the low speed handpiece to place sealer and cements into the canals during RCT?

Lentulo Spiral

A _______ is used in a low-speed handpiece to place sealer and cements into tooth canals during root canal therapy (RCT)

Lentulo Spirals

A general term that literally means "white patch" is:

Leukoplakia

The process by which the resin material is changed from a pliable state to a hardened restoration is known as:

Light Curing

The most frequently used form of pain control used in dentistry is:

Local Anesthesia

When working with light-cured composites, the darker the shade of the material the ________ the curing time.

Longer

Who was the first woman to graduate from a recognized dental college?

Lucy B. Hobbs-Taylor

A(n) ________ agent holds two things together

Luting

The term ______ means to move the tooth back and forth within the socket:

Luxation

In areas where strength is the primary concern, a ________ composite would be selected.

Macrofilled

A condition characterized by abnormally large jaws is:

Macrognathia

Which teeth are extracted using the cowhorn forceps?

Mand. first and second Molars

The dental arch that is capable of movement through the action of the TMJ is the:

Mandible

The cusp of Carabelli is found on which teeth?

Maxillary 1st Molars

In relation to dental radiography, which one of the following terms refers to anatomical landmark used to identify the maxillary cuspid periapical film?

Maxillary Sinus

The conventional or traditional composites, which contain the largest filler particles and provide the greatest strength are known as:

Microfilled Composites

What fluoride binding agent should be given if a child is experiencing acute fluoride toxicity?

Milk

Which term defines the line in the oral tissue where the alveolar membranes meet with the attached gingiva?

Mucogingival Junction

Which is the chronic demyelinating disease of the CNS characterized by progressive disability?

Multiple Sclerosis

The _____ bones join to form the bridge of the nose.

Nasal

The proximal surfaces of the teeth are those surfaces that are:

Next to an adjacent tooth

Can varnish be placed under all restorative materials?

No, only under Amalgam - corrosive to CR

The art portion of the dental model should be no more than __________ of the overall size.

One-Third

Sitting upright or standing too quickly can lead to a drop in blood pressure in some patients. What is the correct term for this drop in blood pressure?

Orthostatic hypotension

A(n) _____ procedure is performed to remove defects and to restore normal contours in the bone

Osseous Surgery

Cavity varnish is placed ____ the liner or insulating base

Over

Which term best describes the horizontal distance between the anterior maxillary teeth and the mandibular teeth when the teeth are in the fully closed position?

Overjet

Which salivary gland is the largest?

Parotid Glands (pair)

Infection occurs when _____ penetrate host defences, enter tissues & multiply.

Pathogens

Which vitality test is performed by tapping on the incised or occlusal surface of the tooth to determine the presence of periodical inflammation?

Percussion

What instrument is used to measure the sulcus of a tooth?

Periodontal Probe

Which instrument is used to measure loss of gingival attachment?

Periodontal Probe

Free floating bacteria in DUWL's are called?

Planktonic

A ______ is used to outline the tissue area for gingivectomy

Pocket marker

An angle formed by the junction of three surfaces at one point is called:

Point Angle

What permanent cement would most commonly be selected for cementing a stainless steel crown on a primary tooth that provides a good overall strength and nonirritating quality?

Polycarboxylate

What impression material has the lowest permanent deformation?

Polyether

The reaction that changes elastomeric impression materials from a paste into a rubberlike material is called:

Polymerization

_________ impression materials have a very strong door and will permanently stain clothing.

Polysulfide

Reprosil is:

Polyvinyl Silicone

The most common type of ceramic used in dentistry is:

Porcelain

What provides additional support for a crown when there is extensive loss of tooth structure?

Post & Core

Class II restorations are found on the....

Posterior teeth

What is another term used for gestational diabetes mellitus?

Pregnancy Diabetes

The normal spaces between the primary teeth are called:

Primate Space

What is the other name used for a desensitizer?

Primer

The structure units of enamel are called enamel _______:

Prisms

What are the only nutrients that can build & repair the body tissues?

Proteins

When fabricating a temporary crown it is important that a space exists between the crown and the model on the abutment side for what reason?

Provide space for cement

The treatment used on primary teeth which have abscessed to keep them in the mouth is called:

Pulpotomy

Which term is defined as the total number of breaths per minute?

Rate

Before dentin bonding, the smear layer must be:

Removed

Which of the following is not a postoperative instruction to control bleeding after a surgical procedure?

Rinse vigorously after 6 hours

The _______ are irregular ridges or folds in the mucous membrane that are located on the anterior portion of the hard palate just behind the maxillary incisors.

Rugae

What is the non-surgical removal of calculus and necrotic cementum from the root of a tooth?

Scaling & Root Planning

A(n) ______ base is placed to soothe the pulp that has been irritated by decay, injury, or the trauma of the cavity preparation.

Sedative

A sealant that is polymerized by chemical reactions is called:

Self-Cured

What orthodontic device is placed approximately 1 week before the placement of orthodontic bands?

Separator

A restoration of IRM can last up to:

Several months

The dental arch is often divided into six sections called:

Sextants

The ____ the ratio, the higher the percentage of vasoconstrictor in the anesthetic agent

Smaller

Immediately after trituration, amalgam is:

Soft & easily shaped

Which fluoride can stain demineralized areas on teeth?

Stannous Fluoride

To prevent a custom tray from seating too far on the arch, ______ are created.

Stops

How are permanent teeth that replace primary teeth identified?

Succedaneous

An automated external defibrillator (AED) is used for what medical emergency?

Sudden cardiac arrest

The condition known as __________ refers to any teeth in excess of the 32 normal permanent teeth.

Supernumerary teeth

A(n) _______ is what a pt tells you regarding how they feel or what they are experiencing; a ______ is what you or the dentist observe in a pt..

Symptom; Sign

A dental patient is most likely to experience which of the following medical conditions while in the dental setting?

Syncope

A reduction in blood flow to the brain that would cause the pt to lose consciousness is called:

Syncope/Fainting

In the taking of final impressions, wash is a term used to describe the:

Syringe material

A patient's best opportunity to receive systemic fluoride is through which source?

Tap water

Which type of dental bur helps to provide angles to the walls of a prepared tooth?

Tapered Fissure

The dentist explained that he treats many TMJ cases. What are the two bones that form this joint?

Temporal & Mandible

The maximum stress that a structure or material can withstand without being permanently deformed is:

Tensile Stress

The amount of stress before the fracture of an alloy occurs is:

Tensile strength

What is an accurate statement regarding the placement of an oral evacuator tip?

The assistant should place the HVE tip first, and then the operator should place the handpiece

A maxillary alginate impression usually requires ______ scoops of powder and two measures of water.

Three

The junction of _____ surfaces forms a point angle.

Three

Dental implants are usually made out of:

Titanium

When preparing a cavity preparation for a composite resin restoration, why is the acid etchant placed on the dentin for a shorter period of time than on enamel?

To avoid opening the dentinal tubules too much

The lingual surfaces of the teeth are those surfaces that are closest to the:

Tongue

The agents that provide a temporary numbing effect on nerve endings located on the surface of the oral mucosa are:

Topical Anesthetics

The filiform papillae, which cover the surface of the tongue, are the receptors of:

Touch

The ______ is/are body spicules in cancellous bone that form a meshwork of intercommunicating spaces that are filled with bone marrow.

Trabeculae

A tooth that has three well-separated and well-developed roots is termed:

Trifurcated

What cranial nerve innervates all muscles of mastication?

Trigeminal Nerve (V)

An advantage of using nitrous oxide/oxygen is that it is relatively simple to administer and easy to manage..

True

Every staff member should have an assigned role in an emergency situation & staff members should practice their specific roles once a month before an emergency arises..

True

Herpes simplex virus type 2 is one of the most common sexually transmitted diseases in the USA

True

If a tooth has an inadequate contour, the gingiva may be damaged.

True

It is important to protect the lips with sunscreen because sun exposure increases the risk of cancerous changes.

True

Known Teratogens involved in congenital malformation include radiation, chemicals, infections & drugs

True

Mechanical debridement is done with the use of reamers and files.

True

No absolute medical contraindications exist for N2O/O2 analgesia, but certain conditions make it a poor choice for some patients

True

Obturations is the filling up of the canals during an RCT procedure.

True

Patients at high risk for caries or with areas of thin demineralized enamel are contraindications for coronal polishing

True

Proper occlusion of the erupting permanent teeth is dependent on that of the primary teeth as they are shed.

True

Responsibilities of the dental assistant in the restorative process can include performing expanded function and maintaining patient control.

True

Teeth with very small initial carious lesions may be sealed, and the bacteria will not survive under a properly placed sealant

True

There are no premolars in the primary dentition.

True

Viruses, such as HIV cannot multiply in DUWL's.

True

The numbering system that uses numbers 1-31 is the _________ system.

Universal

Which of the following statements is not a concept of four-handed dentistry?

Use wide-winged patient chair back

The hanging projection of tissue at the border of the soft palate is the:

Uvula

What is the hanging projection of tissue at the border of the soft palate?

Uvula

______ is added to local anesthetic agent to slow down the intake of the agent and increase the duration of action

Vasoconstrictor

When kneading silicone putty for an impression, it is necessary to wear _______ gloves.

Vinyl

The ability of a liquid to flow is described in terms of its:

Viscosity

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

When did you last eat?

Confidential client treatment information can only be released with the client's?

Written Consent

Which dental cement contains oil of clove and has a sedative effect?

Zinc Oxide - Eugenol

Which one of the following types of cements requires that the powder is added to the liquid in small increments, utilizing a wide area of the glass slab to dissipate the heat?

Zinc Phosphate

Which type of cement must be mixed on a glass slab?

Zinc Phosphate

Which type of cement would not be used for provisional coverage?

Zinc Phosphate

The common term for aphthous ulcer is:

a canker sore

What are Odontoblasts?

a cell that produces dentin; inside the pulp

To provide a better adhesion of material to tooth structure, the dentist may select ______ for the tooth preparation.

a conditioner/etchant

When cells of the body divide and a deformity of a part of the body occurs, it is:

a developmental disorder

The most common/effective treatment for Alveolitis is:

a dressing of eugenol applied in office and a course of antibiotics

A broad term for abnormal tissues in the oral cavity is:

a lesion

Tragus

a piece of cartilage anterior to the opening of the ear

What substance is added to a local anesthetic agent to slow down the intake of the agent and increase the duration of action?

a vasoconstrictor

If stored in water, an alginate impression:

absorbs water

What is the first step in a root canal?

access the preparation

An autocure composite resin is mixed together to:

activate the setting process

What is Commission?

acts that result in harm or potential harm or threat of harm (child abuse/neglect)

During the loading of an anesthetic syringe, the _____ is loaded first

anesthetic cartridge

The labial commissure is the:

angle at the corner of the mouth where the upper and lower lips join

Zygomatic Arch

arch formed when temporal process of zygomatic bone articulates with the zygomatic process of the temporal bone

The over-the-counter bleaching systems:

are performed by the patient at home

Zinc Phosphate cement is used:

as a luting agent for permanent restorations

When an extruder gun is used, the impression material is mixed:

as it moves through the mixing tip

The anterior art portion of a maxillary study model is trimmed:

at an angle from canine to the middle of the central incisor

A medical emergency can happen at any time, so it is important for the DA to:

be alert and continuously observe pt to watch for problems

_____ is frequently used on the mandibular teeth and is injected near a major nerve that numbs the entire area served by that nerve branch

block anesthesia

Glass ionomer capsules are mixed:

by mechanical trituration

How do we determine the size of the wedge to be used?

by the size and shape of embrasure

What are Cementoclasts?

cells that destroy cementum; found inside cementum

What are Odontoclasts?

cells that destroy dentin

What are Cementoblasts?

cells that form cementum; found on surface of cementum

The first step in placing dental sealants is to:

clean the surface

After mixing permanent cement, the spatial and glass slab should be:

cleaned immediately with a wet gauze sponge and disinfected

The most important way to prevent a medical emergency is to be sure the pt has _____ before tx has begun.

completed/updated medical hx

When you are preparing a crown for temporary cementation, you should:

completely fill the crown with cement

What type of tissue makes up the pulp?

connective tissue & odontoblasts

What is a Rongeur used for?

cut & trims alveolar bone

On what tooth structure is a liner placed?

deepest portion of the cavity prep

What is the dental tooth for tooth within a tooth?

dens en dente

Triangular Groove

developmental groom that separates a marginal ridge from the triangular ridge of a cusp

What is Luxation?

displacement/dislodging of a tooth

The time from when the local anesthetic takes complete effect until the complete reversal of anesthesia is the ___ of the anesthetic agent

duration

Hypoglycaemia can be prevented during a dental appointment by making sure the insulin-dependent patient has:

eaten before treatment

Why is it important to outline the frenums in a custom tray?

elastomeric impression will achieve full accuracy

Glass ionomers are gaining popularity as luting agents because:

excellent solubility immediately

What instrument is used to check the seal of a matrix band around a tooth?

explorer

What is omission?

failure to act; neglect of obligation (child neglect)

Enamel that has been etched has the appearance of being:

frosty

Zinc Oxide Eugenol is widely used as an intermediate restoration because it:

has a soothing effect on the tooth

Success of RCT has been confirmed with a radiograph suggesting that the radiolucency at the apex is filling in. This means:

healthy alveolar bone is now growing in the radiolucent area

if a tooth has a necrotic pulp, it will not respond to which of the following stimulants?

hot & cold

____ is achieved by injecting the anesthetic solution directly into the tissue at the site of a dental procedure and is generally used on the maxillary arch

infiltration anesthesia

To create anesthesia, where does local anesthetic need to be injected?

into soft tissue to make contact with sensory nerves

A bonding system _______ mechanical retention.

is supplemental to

Are wedges placed from the facial/buccal or the lingual surface?

lingual

What is the first thing you would check prior to placing topical anesthetic?

medical history: allergies, pain threshold, intra oral conditions

The amalgam capsule is reassembled immediately after use to:

minimize mercury escaping into the aire

Bonding system materials:

must be used according to manufacturer's instructions

The universal/Tofflemire retainer holds the matrix band snugly in position and is most often positioned...

on the buccal surface of the tooth being restored

The receptors for the taste of sweet are located:

on the tip of the tongue

An impression tray with a smooth surface must be ______ before use.

painted with an adhesive substance

Bell's Palsy is:

paralysis of the facial nerve resulting in distortion on the affected side of the face

Impression material that has set on the spatula can be easily removed by:

peeling it off

The purpose of a sandpaper disc in a low-speed handpiece is to:

polish and/or finish a restoration

The most common indication for placing pit & fissure sealants would include which of the following tooth characteristics?

posterior teeth with deep pits and fissures

What is Ionization?

process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes

Why is calcium hydroxide used for pulp capping?

promotes reparative dentin

What is the function of a dental liner?

protects pulp

What is the function of a dental liner?

protects the plural tissue from irritation caused physical, mechanical, chemical & biological elements

What does an insulating base do for a tooth?

protects tooth from thermal shock

What does an insulating base do?

protects tooth from thermal shock

What is pulp fibrosis?

pulp aging/ degeneration/ forming fibrous tissue

The innermost area of the tooth is the:

pulp chamber

The reason sedation is used frequently in oral surgery is to:

raise the pain threshold

What is the main functions for all liners, bases & varnishes?

replace lost dentin

For what purpose would you use an anterior dental dam clamp?

retract gingiva on the facial surface to improve visibility

What impression material has the highest rate of dimensional stability?

reversible hydrocolloid

Marginal Ridge

rounded, raised border on the medial and distal portions of the lingual surfaces of anterior teeth and the occlusal table of posterior teeth

What effect does eugenol have on the pulp?

soothing effect

The end result of a properly mixed luting cement will:

string 2cm from paper pad

What are tooth buds?

structures the form a tooth: enamel organ, dental papilla & dental sac

A(n) _____ infection can be described as being less persistent than chronic and have an onset less rapid than acute

subacute

The first step in preparing the patient for an in-office bleaching procedure is to:

take shade of patients teeth

General Anesthesia is most safely administered in:

the hospital

When constructing the custom tray, it is important to place stops so:

the impression material doesn't run out of the tray

Nitrous oxide oxygen administration always begins and ends with:

the patient breathing 100% O2

The tubes of catalyst and base are interchangeable if they are:

the same brand of impression material

In a two-step impression technique, before seating the heavy body impression material:

the syringe material is placed around the tooth

The gauge of the needle refers to the thickness of the needle; the larger the gauge, the _______ the needle

thinner

Final impressions are used for:

to produce a master cast

The study of oral pathology is important for the dental assistant:

to recognize the difference between normal and abnormal conditions

What is the primary use of a custom tray?

to secure a final impression

The most common matrix system used for class II posterior restorations is the...

tofflemire retainer and matrix band

When performing endodontic treatment on a maxillary first premolar, how many canals may be involved?

two

A mandibular alginate impression requires _______ scoops of powder and ________ measures of water.

two/two

The purpose of using disclosing solution is to:

visualize plaque

When is tooth whitening or vital bleaching not indicated for a dental patient?

when the patient presents with severe tetracycline and fluorosis stains

A diagnostic cast (also called study model) made from an alginate impression is found to have numerous small blebs (leads) of stone on the occlusal surfaces of the teeth. The best way to prevent this from happening is to:

wipe some alginate onto the occlusal surfaces of the patient's teeth before seating the tray

The final cure of an elastomeric impression material can occur:

within 1-24 hours