Dental Assisting Midterm

Regulations are designed to protect the patients what?

Healthcare Information

The term for the position of teeth during chewing is called?

Functional occlusion

What is the soft sticky bacteria that adheres to teeth?

Dental plaque

Which of the following is to be done to reverse gingivitis?

Improving oral hygiene

What is the most resistant form of bacteria life?

Spores

The purpose of OSHA blood borne pathogens standards is to protect who?

Employees and healthcare workers

What specific information must the dental team receive from the patient before it can provide dental treatment?

Medical and dental history

What technique can be used to diagnose decay within a tooth?

Dental radiographs (x-rays)

Which regulatory agency requires the use of surface disinfectants?

(EPA) Environmental Protection Agency

The instrument classification used to determine the method of sterilization and disinfections are called what?

The Spaulding Classification System

Where’s the process indicator placed?

Outside of the instrument package/pouch.

An example of regulated waste is…

Contaminated sharps or blood soaked gauze

When should HVE (high volume evacuators) be used to minimize aresol?

Whenever a high speed handpiece, ultrasonic scaler or air-water syringe is used.

The goal of ergonomics is to do what?

To design and arrange work tasks, tools and environments to fit the physical and mental capabilities of workers.

What foot control device is used to operate the dental hand piece?

The rheostat.

When using the clock concept for a right handed operator, where is the static zone located?

From 12 o’clock to 2 o’clock.

In relationship to the seated operator how is the assistant positioned?

4-6 inches higher.

What kind of instrument is a discoid cleoid?

An amalgam / wax carver.

The low speed hand piece can be equip with a —————- to hold a disc.

Mandrel

With the high speed hand piece positioned on the occlusal surface of #4, where should the HVE be positioned?

On the lingual surface.

Topical anesthetics are used in dentistry for what?

To provide a temporary numbing effect.

What dental condition is the result of too much flouride?

Fluorosis.

What feature do newly erupted central and lateral incisors have on their incisal ridges?

Mamelons

What is the name of the fifth cusp on the maxillary first molar?

The Cusp of Carabelli.

The name of the triangular space between two adjacent teeth is the ————.

Embrasure.

An individual who has an incorrect bite has a diagnosis of ——————.

Malocclusion

What is the rounded, raised area on the cervical thirds of the lingual surfaces of anterior teeth?

Cingulum

Which teeth are the smallest ones in the permanent dentition?

Mandibular incisors

How many roots do mandibular molars have?

2

Which primary tooth has an H-Shaped groove pattern on its occlusal surface?

Maxillary molar

Which method of tooth brushing is generally recommended?

Bass

What type of dental floss is most effective for the removal of plaque?

Waxed and unwaxed.

The three types of carbohydrates are simple carbohydrates, complex carbohydrates and ——————.

Dietary fiber.

The term used for a food that us capable of causing tooth decay is —————-.

Cariogenic.

How many of the amino acids are essential?

9

Which vitamin is water soluble?

Vitamin C

Which nutrient is often called “the forgotten nutrient?”

Water

What type of bacteria is the cause of dental caries?

Mutans streptococci.

Which of the following is a clinical sign of gingivitis?

Redness

Why is microbiology important to the dental assistant?

To gain an enhanced understanding of infection control.

Which is a shape of bacteria?

Spherical, Bacillus-like and Spiral.

The first oral indicator of syphilis is ————-.

A chancre sore.

What infection control measures help prevent disease transmission from the dental team to the patient?

Gloves, Hand washing and Masks

What agency has released infection control guidelines?

Centers for Disease Control & Prevention (CDC), Occupational Safety and Health and Administration (OSHA)

An example of PPE is ————-.

Gloves.

An example of protective eyewear is —————-.

Glasses with side shields.

What is perhaps the most critical piece of PPE?

Gloves.

Which agency regulates disinfectants?

EPA

What is a common term for sodium hypochlorite?

Bleach.

Which product is not effective if blood or saliva is present on a surface?

Alcohol.

An instrument used to penetrate soft tissue or bones is classified as a —————-.

Critical Instrument (like an explorer or probe)

Instruments that come in contact with oral tissues, but do not penetrate soft tissue or bone, are classified as ——————-.

Semi critical instruments (like the PFI & Amalgam Carrier)

—-blank—- are instruments that come into contact with intact skin only.

Non-critical instruments (like the mouth mirror)

The instrument classifications used to determine the method of sterilization and disinfection are —————-.

Critical, semi-critical and non-critical

The ultrasonic cleaner works by —————-.

Sound waves

Waste that has certain properties or contains chemicals that could pose a danger to human health and the environment after it is discarded is a —————.

Hazardous waste

Disposable items that have had contact with blood, saliva or other body secretions are considered —————-.

Contaminated waste

Waste that is capable of causing an infectious disease is —————.

Infectious waste

—Blank— is infectious waste that requires special handling, neutralization and disposal.

Regulated waste

Waste that is capable of having a poisonous effect is —————.

Toxic waste

acute chemical exposure involves ————.

Short term exposure in large quantity.

What is another term for Hazard Communication Standard?

Employee right-to-know law.

What chemicals must be included in a chemical inventory?

All chemicals.

Ergonomics is the —————.

adaptation of the work environment to the human body.

What types of disorders systematic from considered musculoskeletal disorders?

Headaches

What types of gloves are most likely to aggravate carpal tunnel syndrome?

Ambidextrous gloves.

What specific information must the dental team receive from the patient before it can provide dental treatment?

Patient registration, medical history, and informed consent.

Who legally “owns” a patient’s dental record?

The dentist.

Which medical condition would require an alert notification?

An allergy to penicillin.

—Blank— is the term used to mean outside the oral cavity.

Extraoral

—Blank— is the term that means within the oral cavity.

Intraoral

Which dental material would not be used in the restoration of a tooth?

Brass

The abbreviation PFM stands for —————-.

Porcelain fused to metal

The ideal temperature for the reception area of a dental practice is —————.

72 degrees fahrenheit

The dental chair is positioned in the ——————- position for most dental procedures.

Supine

The acronym HVE stands for ——————-?

High Volume Evacuator

According to the clock concept, instruments are to be exchanged during a procedure in the ——————.

Transfer zone

Which instrument is part of the basic setup?

Cotton pliers

Which instrument is used to carve the interproximal portion of the restoration?

Hollenback

Howe pliers are also referred to as ——————-.

110 pliers

Newly triturated amalgam is placed in the —————— before it is packed in the amalgam carrier.

Amalgam well

Which dental hand piece is most versatile?

Low speed

How fast will the low-speed handpiece rotate?

30,000 rpm

During cavity preparation, how does the high-speed handpiece keep the tooth at a proper temperature and free of debris?

Water coolant

What type of handpiece resembles a sandblaster?

Air abrasion

Restorative burrs are commonly manufactured from what material?

Tungsten carbide

The two types of evacuation systems used in dental procedures are ———————.

High volume suction and saliva ejector

Why is it important to moisten a cotton roll before removing it from the mouth?

The cotton roll may irritate the lining mucosa.

The assistant uses the ————— grasp when holding the HVE.

Pen or thumb-to-nose

What is secured on the dental dam clamp before positioning on the patient’s tooth?

Dental floss

The most frequently selected form of pain control used in dentistry is ——————.

Local anesthesia

What needle sizes are most commonly used in dentistry?

1 inch (blue) and 1 5/8 inch (yellow) needles

Is it common for patient with an acute infection to not feel the numbing sensation of local anesthesia?

Yes

The dental team can be at risk for exposure to N2O/O2 in a dental office because of

The tank or cylinder of ——————- is always color coded green.

Oxygen