California RDA exam dental assistant exam California RDA written exam California Californi | Exams Dentistry

California RDA written exam

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1. according to the CDC which infection control measure is considered the most critical

for reducing the transmission of microbes in the health care setting?: hand washing

2. in a dental setting the clinical supply refrigerator may be used for the preservation

of: bonding materials

3. A used dental anesthetic needle is an example of: regulated waste

4. Employees must receive training regarding hazardous chemicals at which interval?: upon

hire and whenever a new hazard is introduced

5. The OSHA Hazard Communication Standard is based on the premise that an

employee has the right to know about: chemicals in the office

6. Which set of precautions is intended to prevent exposure to all body flu- ids?: Standard

7. The majority of the spray produced by dental hand pieces consists of: saliva

8. which of the following viral infections can be prevented through immuniza- tion?:

Hepatitis B

9. According to the Occupational Safety and Health Administration (OSHAP), a bloodborne

pathogens training program should include a general explanation of: the modes of disease

transmission

10. Routine hand washing removes: most of the transient microbes and some of the resident

microbes

11. Which of the following greatly reduces or eliminates biofilm in the dental unit water

system?: properly using chemical treatments

12. which of the following modes of disease transmission best describes a human bite?:

parenteral

13. the primary reason a surgical face mask must be used during a dental procedure is

to: protect the DHCP from exposure to spatter

14. Instrument cassettes should be wrapped: after cleaning and before steriliza- tion

15. Used radiograph fixer solution is usually considered: hazardous waste

16. Which party is responsible for ensuring a Material Safety Data Sheet is available in

the work place for each hazardous material?: Employer

17. Which of the following statements most accurately defines engineering controls?:

Materials and devices that prevent employees exposure to hazardous or infectious

substances

18. When using the air water syringe during dental treatment which of the fol- lowing

personal protective equipment are recommended by the CDC?: gloves, mask, gown, and eye

protection

19. According to the Center for Disease Control and Prevention, patient-care items that

penetrate soft tissue are categorized as: critical

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according to the CDC which infection control measure is considered the most critical for reducing the transmission of microbes in the health care setting?: hand washing
in a dental setting the clinical supply refrigerator may be used for the preservation of: bonding materials
A used dental anesthetic needle is an example of: regulated waste
Employees must receive training regarding hazardous chemicals at which interval?: upon hire and whenever a new hazard is introduced
The OSHA Hazard Communication Standard is based on the premise that an employee has the right to know about: chemicals in the office
Which set of precautions is intended to prevent exposure to all body flu- ids?: Standard
The majority of the spray produced by dental hand pieces consists of: saliva
which of the following viral infections can be prevented through immuniza- tion?: Hepatitis B
According to the Occupational Safety and Health Administration (OSHAP), a bloodborne pathogens training program should include a general explanation of: the modes of disease transmission
Routine hand washing removes: most of the transient microbes and some of the resident microbes
Which of the following greatly reduces or eliminates biofilm in the dental unit water system?: properly using chemical treatments
which of the following modes of disease transmission best describes a human bite?: parenteral
the primary reason a surgical face mask must be used during a dental procedure is to: protect the DHCP from exposure to spatter
Instrument cassettes should be wrapped: after cleaning and before steriliza- tion
Used radiograph fixer solution is usually considered: hazardous waste
Which party is responsible for ensuring a Material Safety Data Sheet is available in the work place for each hazardous material?: Employer
Which of the following statements most accurately defines engineering controls?: Materials and devices that prevent employees exposure to hazardous or infectious substances
When using the air water syringe during dental treatment which of the fol- lowing personal protective equipment are recommended by the CDC?: gloves, mask, gown, and eye protection
According to the Center for Disease Control and Prevention, patient-care items that penetrate soft tissue are categorized as: critical

The purpose of a holding solution is to: prevent hardening of debris and body fluids on instruments
Which barrier should be removed before temporarily leaving a patient to retrieve supplies?: gloves
The majority of organisms that make up dental unit waterline biofilm consists of: water bacteria
Material Safety Data Sheet (MSDS) are required by OSHA'S: Hazardous Communication Standard
Besides alcohol, which of the following is a common antimicrobial agent found in hand hygiene products?: Chlorohexidine
The accessibility of the exposure control plan for employees is the respon- sibility of the: employer
High- level disinfectants should be used: according to the manufacturer's directions
Exposure of dental heathcare personnel to nitrous oxide gases can be reduced by: using a scavenger system on the nitrous oxide equipment
When putting on personal protective equipment, which barrier should be put on last, just before patient care begins?: gloves
To prepare for sterilization, the high-speed hand piece and reusable air-wa- ter syringe tip should be flushed with water: after each patient
Who is responsible for the evaluation of hazardous chemicals?: chemicals manufacturers and importers
During normal use, which of the following is the most likely hazard for a dentist using a curing light?: eye exposure to the light
An exposure plan must be updated: annually and when new or modified tasks are introduced
Wearing a punctured gloves during patient care may result in which type of microbial contact?: direct
Work practice controls include the use of a: one-handed recapping technique
Heat sterilization of extracted teeth may result in: the vaporization of mer- cury, presenting a health hazard.
A person with a latent tuberculosis infection will: have a positive skin test and no symptoms of active tuberculosis
Which is the minimum temperature a steam sterilizer should reach to achieve sterilization?: 121 degrees C
Which of the following is an example of a clinical contract surface?: coun- tertops
which of the following is recommended to minimize the occupational exposure to atmospheric nitrous oxide?: use a properly fitted nasal patient mask

The primary reason a surgical face mask must be used during dental procedure is to: protect the DHCP from exposure to spatter
Using traditional radiographic procedures, which of the following is con- sidered a clinical contact surface?: X-ray control panel
Mechanical monitoring of the sterilization process should occur with: - every load
The primary active agent in the solution used for unsaturated chemical vapor sterilization is: formaldehyde
What is the proper management for work surfaces that become contami- nated with blood?: Clean and disinfect
Which of the following demonstrates an appropriate fill level for a sharps container?: 3/4 full
What agency regulates the registration of hospital disinfectants?: EPA
Which of the following is the best environmental infection control practice for clinical contact surfaces with irregular surfaces?: Covering surface with fluid impervious barriers
Routine hand washing for dental healthcare personnel includes the use of: water and plain soap
A surgical mask should be changed: after every patient
Which of the following steam autoclave settings and times are most effec- tive for sterilization of wrapped instruments?: 121 degrees C (250 degrees F) and 15 psi for 30 minutes
According to OSHA, safety measures that should be taken when using bonding materials with potential hazards must be found in a: Material Safety Data Sheet
Which of the following indicators is placed inside every package of instru- ments prior to sterilization?: Chemical
Instruments with the greatest risk of transmitting infection are: critical instruments
Torn gloves should be replaced: as soon as possible
What are the three types of sterilization monitoring?: mechanical, chemical, and biological
To reduce the risk of disease transmission in the dental office, it is recom- mended to: use disposable items whenever possible
Which of the following is regulated medical waste?: Biopsy tissue
Which of the following best describes the appropriate container for a biopsy specimen?: single- leak proof container with a biohazard symbol

Which of the following is recommended for managing contamination of digital radiographic sensors that cannot be heat sterilized?: The use impervi- ous barriers followed by cleaning and disinfection
Which of the following is the best method for managing components of dental instruments that cannot be detached from the dental unit?: cover with impervious barriers that are changed between each patient
Isopropyl alochol performs best as a(n): antiseptic
A dental assistant who receives an accidental exposure on the skin from a contaminated source should first: wash the exposed skin with soap and water
The mechanism of disease transmission for influenza is: droplet
Sterile surgical gloves sold in the United States must meet the standards of which regulatory agency?: Food and Drug Administration (FDA)
Which microorganism is used to identify a disinfectant as intermediate level?: M. tuberculosis var bovis
How must contaminated reusable sharp instruments be transported from the treatment area to the processing area?: In a puncture- resistant container that is leak proof on the sides and the bottom
According to the CDC to reduce the contamination of cleaning solutions, reusable mops used on housekeeping surfaces should be: cleaned and dried before reuse
the microbial skin flora that do not colonize and don not survive on the hands for long periods are: transient flora
Solutions used for cooling and irrigating during oral surgical procedures are best delivered through: a sterile delivery device
Oral surgical procedures require the use of: sterile irrigating solutions using a sterile delivery system
Immunization against influenza is administered: once a year
Which of the following is an example of an OSHA- required sharp with engi- neered injury protection?: a self-sheathing needle attached to a dental anesthetic syringe
According to the OSHA Bloodborne Pathogens Standard protective eye- wear must have: solid side shields
One of the most important sources in preventing the spread of disease is proper hygiene of one's: hands
While cleaning contaminated instruments, an assistant receives a percu- taneous injury to the finger. The assistant should FIRST: wash hands with soap and water
According to the CDC, how long should sterilization monitoring records be kept?: as required by state and local regulations

Clinical consideration for patients with bronchial asthma should include- : shorter appointments to reduce stress
Dental office appointment schedules may include blocks of time set aside for emergency patients. This time is called: buffer time
A patient with which of the following medical conditions may benefit from prophylactic sublingual nitroglyerin?: Cardiovascular disorders
A plastic matrix strip is used to adapt the shape of a tooth for a (an): com- posite
The patient record is a permanent document of whom?: the patient
Where would a patient's registration form be found in the dental office?: In the front section of the patient's chart
The dental history section of a health history form provides the dental team with information regarding: previous dental care and treatment
A correctly fitting impression tray has sufficient depth to leave a minimum occlusal/incisal clearance of: 2.0mm
Which of the following is an adverse effect of peroxide-based tooth whitening procedures?: tissue irritation
When transferring instrument with hinges such as surgical forceps and scissors, the assistant should: grasp the hinges and direct the handles to the dentist's palm
When portable equipment such as curing lights and nitrous oxide ma- chines are used, in which zone of operation are they placed?: static zone
Which of the following succedaneous teeth are the first to erupt?: - Mandibular incisors
When a patient is referred to a specialist for treatment, the assistant should: send a copy of the pertinent information to the specialist
Which of the following instruments is used for tactile discovery of decay?: explorer
At the time of primary teeth exfoliation, osteoclasts first cause resorption of: root
The correct sequence of dental instruments for a class I amalgam restora- tion tray based upon order of use is: excavator, condenser, burnisher, dis- coid-cleoid
Which of the following materials would allow the longest working time when constructing a custom impression tray?: light- cured acrylic resin
Which of the following is one sign of anaphylactic shock?: respiratory distress
What instrument would be used to smooth the edges of a stainless steel crown after adjusting its height?: green stone

If left untreated, plaque buildup may lead to which of the following condi- tions?: gimgivitis
Proper ergonomic positioning when working from the operator's location includes: positioning the elbows close to the body
To prevent alveolitis after a tooth extraction, the patient should be in- structed to: avoid drinking through a straw
The process of mixing cements to a primary consistency is know as: luting
If a blood pressure reading of 142/96 is obtained on an adult, it is classi- fied as: hypertension
Which of the following describes the best way to remain approachable to an anxious patient?: encourage questions
Fluoride- releasing restorative materials help to prevent what kind of dental caries?: recurrent
The dental specialty that deals with the diagnosis and treatment of the supporting tissues is: periodontics
A surgical dressing that is applied to the surgical site for protection is called a: periodontal dressing
When a person's tooth is not properly aligned with its opposing tooth, it is referred to as: cross bite
When a person occludes and mandibular anterior teeth cannot be seen, the diagnosis is: over bite
What position(s) will the orthodontist evaluate for facial symmetry?: - frontal and profile view
What type of radiograph is the most commonly exposed in orthodontics?- : Panoramic
How many photographs are commonly taken in the diagnostic records appointment?: six
What gypsum material is most commonly used for fabricating orthodon- tic diagnostic models?: plaster
What instrument is part of the setup for seating and cementing a molar band?: bite stick
The orthodontic scaler is used for: removing excess cement or bonding material
To ease the placement of orthodontic bands, what procedure is complet- ed to open the contact between teeth?: Placement of a seperator
When cementing bands, what material or device can be used to prevent cement from getting into the buccal tubes or attachments?: Lip balm and Utility wax
How are brackets adhered to a tooth?: Bonding agent

At what phase of orthodontics would a pediatric dentist intercede in getting a patient to stop sucking his or her thumb?: Preventive
If you are a competitive swimmer, is it recommended that you wear a mouth guard?: No
what matrices are used on primary teeth?: T-band and spot welded
What endodontic procedure would be performed on primary teeth?: - pulpotomy
Would a child be referred to a prosthodontist for the placement of a stainless steel crown?: NO
In children, which teeth are most frequently injured?: Maxillary anterior
When a tooth is avulsed, it has: come out
How does the dentist stabilize a tooth after an injury?: with a temporary splint
Who in the dental office is legally required to report child abuse?: All dental healthcare workers
What oral conditions contraindicate the use of an ultrasonic scaler?: Pa- tients with demineralization, Narrow periodontal pockets, exposed dentin
What is the more common term for dental prophylaxis?: Prophy
Who can perform a dental prophylaxis?: Dentist and dental hygienist
is a surgical periodontal treatment?: gingivectomy
What drug is often used for the treatment of periodontitis, juvenile peri- odontitis, and rapidlt destructive periodontitis?: tetracycline
When the dentist taps on a tooth, what diagnostic test is being per- formed?: Percussion
What type of radiograph would be exposed through the course of root canal therapy?: periapical
The diagnosis of inflamed pulp tissue is: pulpitis
Another term for necrotic is: dead and nonvital
is the dental material most commonly preferred for pulp capping,- : Calcium Hydroxide
What portion of the pulp would the dentist remove in a pulpotomy?: Coro- nal portion
Obturate means to: fill a pulpal canal
The irrigation material most commonly used during root canal therapy is: diluted sodium hypochlorite
The material most commonly use for filling an endodontically treated canal is: gutta percha
What type of moisture control is recommended for a root canal therapy?- : dental dam

What surface of the posterior tooth would the dentist enter with a rotary bur when opening a canal for root canal therapy?: occlusal
is a surgical procedure that involves the removal of the apex of a root.: apicoectomy
is a removable prosthesis that replaces one or several teeth.: partial
How could the presence of a new prosthesis affect the flow of saliva?: in- crease
Why is it important that an evenly contoured alveolar ridge affect the way a removable prosthesis fits?: for mastication and for a better fit
What oral habits can affect the choice of a removable prosthesis?: clench- ing, grinding, mouth breathing
What is the metal skeleton of a partial called?: framework
A retainer on a partial is also called a: clasp
What component of a partial controls the way it is seated in the mouth?- : rests
What impression material is commonly used when one is taking a final impression for a partial?: elastomeric
What dental material does the laboratory technician use to set the teeth for the try-in appointment for dentures?: wax
How many teeth are in a full set of dentures?: 28
What technique does the dentist use to modify the borders of an impres- sion?: border molding
what is a "smile line"?: The portion of the teeth should when a patient smiles
When is an immediate denture most commonly used?: After extractions of anterior teeth
Who can legally fabricate and cement a provision in the dental office?: - RDA
What type of provisional is the most natural looking?: custom
what type of provisional could be selected for anterior teeth?: preformed polycarbonate
What is required prior to the preparation of a tooth for making a custom provisional?: Preliminary impression
What type of dental material is used in making a custom provisional?: - acrylic resin
what is used to trim or contour a stainless steel crown?: curved crown and bridge scissors
Does a polycarbonate crown remain on the prepared tooth or act as a mold for the provisional?: both

Which wall of the cavity preparation is perpendicular to the long axis of the tooth?: pulpal floor
where would you find a Class I restoration in the mouth?: occlusal surface
How many surfaces could a Class II restoration affect?: two or three
which tooth could have a class II restoration?: tooth 13
what restorative material would be set up for a class IV restorative proce- dure?: composite resin
What kind of moisture control is recommended for class III and IV proce- dures?: dental dam
what population has a higher incidence of class I lesions?: Children
What tooth surface would receive a veneer?: facial
which form of gypsum is used to fabricate a die for making an indirect restoration?: high- strength stone
the water/ powder ration of plaster for pouring a model is: 100/
when gypsum materials are mixed, how are the powder and water incor- porated?: add powder to the water
How are gypsum materials mixed?: using a spatula and rubber bowl
Which of the following is part of a dental model?: Anatomic and art
When pouring an impression, where would you begin placing the gypsum material in a mandibular impression?: most posterior tooth
How long should you wait before you separate a model from the impres- sion?: 40 - 60 minutes
Which of the two models (maxillary and mandibular) do you begin trim- ming first?: Maxillary
What is the one specific area of a dental model in which the maxillary and mandibular models are trimmed differently?: anterior pattern
What should be placed between the two models when they are trimmed together?: wax bite
Of the three types of custom trays used in dentistry, which technique uses a volatile hazardous material?: acrylic resin
What type of custom tray would be made for a vital bleaching procedure?- : thermoplastic resin
Acrylic resin for the fabrication of trays is supplies as: powder and liquid
What type of wax is used to form a wall around a preliminary impression when it is poured?: boxing wax
To extend an impression tray, what type of waxed is use?: rope/ utility wax
What type of material is used to take a patient's bite?: bite registration material

What is placed to prevent a tray from seating too deeply onto the arch or quarter?: spacers
Where would you commonly find the dental laboratory in a dental office?- : in a separate space away from patient care
What type of specialty practice might have a more extensive laboratory?- : fixed prosthodontics and orthodontics
An example of a contaminated item commonly found in the dental labo- ratory would be a (n): impression
What piece of lab equipment is used to grind away plaster or stone?: - Model trimmer
What piece of laboratory equipment does the dentist use to determine centric relation from a diagnostic model?: articulator
What dental material is used to fabricate dental models?: gypsum
hydro- means: water
Another name for irreversible hydrocolloid is: alginate
how is irreversible hydrocolloid mixed?: mixing bowl
Elastomeric materials are selected for what type of impression?: final
How are elastomeric materials supplied?: paste, cartridge, putty
Which viscosity of final impression material is applied first to the teeth: - light body
what does the dentist use to express light body impression material around a prepared tooth?: syringe
What system accomplishes the mixing of final impression material for the assistant?: Auto-mix
is most commonly used for taking a bite registration.: bite regis- tration material
What tray type is most commonly selected when zinc oxide-eugenol (ZOE) bite registration paste is used?: Gauze tray
Baseplate wax is prior to placement in the patient's mouth for a bite registration.: warmed
A preliminary impression is prior to transport to the lab to pour up.: rinsed, disinfected, wrapped in a moist paper towel, and placed in a precaution- ary bag
If increments in the powder of dental materials vary, which size is com- monly brought into the liquid first/: half of the material
How do you load a crown with permanent cement?: line the interior surface.
How is polycarboxylate cement liquid supplied?: tube or squeeze bottle
How should polycarboxylate cement appear after the mixing process?: - Glossy

With the high-speed handpiece positioned on the occlusal surface of tooth 4, where would the HVE be positioned?: lingual surface of tooth 3
What can increase productivity in the dental office?: patient comfort, min- imization of stress and fatigue, delegation of expanded functions
When using the clock concept for a right-handed operator, where is the static zone located?: 12 or 2 o clock
According to the clock concept, instruments are to be exchanged during a procedure in the: transfer zone
Besides the assistant, what else would be located in the assistant's zone?: dental unit and assistant's stool
In relation to the operator, how is the assistant positioned?: 4 - 6 inches higher than the operator
How should the operator maintain his or her posture when treating a patient?: upright, feet flat on the ground, elbows at the side
The chairside assistant should use hand(s) in the transfer of a single instrument.: both or one
What hand is use primarily to transfer instruments to a right handed dentist?: left
Indirect vision could be used for viewing the: ligual of 7, facial of 25, occlusal of 3
is another term for finger rest.: fulcrum
Depending on the instrument, the assistant can use the of his or her left hand when retrieving a used instrument from right handed dentist.: last two fingers or middle and index finger
The thickness of the lead collimator is: 1/16 inch
The target in the x-ray machine housing is made of: tungsten
X-rays are produced by: heating of the cathode and the anode, production of rapidly moving electrons, hot electrons bombarding a tungsten target
The cells of the body least susceptible to radiation are: muscle cells
California Radiological Safety Code requires the apron for patient protec- tion contain at least:: .25 mm of lead
The area of the face which is most sensitive to x-ray exposure is the: lens of the eye
How long according to manufacturer's directions, should etchant be left on tooth structure?: 15 - 20 seconds
Caries automated detector devices can only be used on: virgin tooth struc- tures

California RDA exam dental assistant exam California RDA written exam California Californi, Exams of Dentistry

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