Dental Assistant

Somatic effects of radiation do NOT have damaging effects on

The penetrating x-ray beam produced during dental radiography is called

If a patient's gag reflex is stimulated during the radiographic procedure, the dental assistant should

Which of the following landmarks would be seen in a maxillary anterior periapical radiograph?

Personnel radiation monitoring devices are worm to

Dental assistants exposing x-rays can best be protected from scatter radiation by

How often should step wedge control tests for a dental x ray machine conducted?

While exposing x-ray films, radiation deflecting off the patient's head is called

To prevent cross-contamination, wipe the counter top with

When using a 16- inch PID the esposure time must

Which of the following causes interproximal areas of the teeth to appear overlapped?

Which of the following occurs when improper vertical angulation is incorrect

Storing unexposed radiographic film in high humidity conditions may cause

Which of the following can help to protect patients from excess radiation damage to tissues?

On a radiograph, when the contact area of one tooth is superimposed over the contact of another, it is called?

What is the primary advantage in using digital radiography?

The most important step the dentist can take in protecting patients from x-radiation is to

An underexposed film with appear

Dental healthcare personnel can best shield themselves during patient exposure by standing behind

Which of the following an be observed on a panoramic radiograph when the patients chin is tipped downward?

Which of the following affects the quantity of x-rays being emmitted from the tubehead?

Compared to a dentulous patient, radiographic eposure time on a edentulous adult patient should

Which of the following is the measurement of force that refers to the potential difference between two electrical charges?

If disposable barriers are not used during a radiographic procedure all clinical surfaces should be

The radiation exposure that poses the greatest hazard to the operator is

A cephalometric radiograph is PRIMARILY used to evaluate

When exposing a panoramic radiograph on an edentulous patient, which of the following would a dental assistant use to stabilize the upper and lower arch on the bite block?

Once the film has been removed from the protective packets, the dental assistant should

Leakage radiation is defined as any radiation that is

Paralleling technique requires the film be placed

The maximum permissible does (MPD) of ionizing radiation for occupational exposure is

The diameter of the cone- shaped beam produced from a circular collimator is

The Frankfort Plane is an imaginary plane passing through the

Which of the following regulates the manufacturing and installation of x-ray equipment?

The Buccal Object Rule is used to determine if a foreign body is located in which direction?

Developing solution temperatures should be checked frequently when using

Which of the following will best protect the dental assistant from the cross-contamination while exposing radiographs?

Dental healthcare personnel who are pregnant can expose radiographs during the

The radiation that is formed by the interactions of x-rays with matter is

Which type of gloves are required for the decontamination of the darkroom?

When taking a panoramic radiograph, the patient's head should be oriented

Which of the following radiograph techniques is recommended for a patient with a shallow palate?

Which of the following is a long-term effect of radiation?

A film with emulsion will appear

Which of the following lesions appears radiopaque on a radiograph?

Blurred radiographic images are often caused by

The most commonly used radiographic exposure for a 3-year old patient is

Chemical agents should be properly disposed of according to

Cone beam computed tomography uses

Supernumerary teeth are best detected using what type of film?

Phosphor plates are processed by using

If a patient did not remove earrings prior to exposing a panoramic, the radiograph could have

A panoramic radiograph with a dark shadow over the apices of the maxillary teeth may be caused by the patient

How often should protective clothing be changed in an oral healthcare setting?

Back-scatter radiation to the film is prevented by the

During patient exposure, protecting from radiation for the dental assistant includes

The most common radiographic exposure used to detect periodontal disease is a/an

When taking radiographs on a mall child who cannot hold the film intra-orally, the dental assistant should

When radiographs are mounted with the embossed dot appearing outward, this is known as

When transporting a disposable cup containing patients exposed film to the development area, the dental assistant should

When executing a routine hand wash, the dental assistant should lather and scrub for a minimum of

Which of the following quality control tests evaluates safelighting in the darkroom?

The optimum developing solution temperature for a manual processing

Most bilateral findings in radiographs are considered

A processed film has a straight, clear border on the upper edge. this error is caused by

When exposing radiographs, what is the minimum distance the operator should stand from the tube head?

The amount of which of the following is used in determining the degree of radiation injury?

Prior to exposing dental radiographs on a visually impaired patient, the dental assistant should

During film processing, which of the following can cause a dark image?

Which of the following film size is the longest

Personnel monitoring for radiation exposure is done by

When documenting a lesion found on a radiograph, all the following should be described EXCEPT

The shorter the wavelength of electromagnetic radiation, the greater the

Contrast in a radiograph is primarily controlled by

The use of a thyroid collar is recommended for all of the following radiographic exposures EXCEPT

The primary function of collimation is to

Duplicating film is coated with

Film should be stored in

The most important responsibility of the dental assistant in dental radiography is

Which of the folowing pathogens is NOT found in oral or respiratory secretions?

Whixh of the following landmarks is useful when mounting films of the mandibular posterior area?

The purpose of a grid device on an extraoral cassette is to

One a radiograph, the anterior alveolar crest normally appears

When exposing a posterior periapical radiograph on an adult patient with no intraoral restrictions, which size film should be used?

Insufficient rinsing of processed radiographic film will result in a /an

Which of the following influences the sharpness of a radiograph

To assist the patient in controlling the gag reflex, the dental assistant should

Which of the following increases the density on a duplicated film?

Inside the film packet, the film is wrapped with a/an

Which of the following equations is used to determine the occupational maximum accumulated dose (MAD) pf radiation

A step wedge can be used to demonstrate

Human tissue are mainly composed of

The amount of radiation and exposure time needed to produce a diagnostic radiograph is best determined by

On a full mouth series with eighteen films, how many anterior films are exposed?

The main purpose of using a lead apron with a thyroid collar when exposing dental radiographs is to protest the patient from

Which of the following will cause white spots to appear on the radiographs?

Maximum wattage for a safelight bulb should be

Which of the following would you adjust to produce wavelengths with the greatest penetrating power?

How frequently should processing solutions be replenished?

Which organization regulates disinfectants and chemical sterilants

Which of the following is most likely to cause a stored radiograph to turn brown over time

Which of the following landmarks is useful when mounting films in the maxillary central area?

Which of the following may cause film fogging

Which of the following should be labeled on the radiographic mount prior to film duplication?

Which of the following conditions will result in a radiographic image that is too light?

Which of the following bets describes the actio of he developer solution?

The primary purpose of the bitewing radiograph is to evaluate

A full mouth series of periapical radiographs taken on a edentulous patient will consist of

The normalizing device can be used to monitor

Which of the following results in a double image radiograph?

The most common artificial exposure comes from

If a dentql assistant dosimeter badge indicates exposure to radiation, what should be done first?

The position- indicating device (PID) shape tha tmost effectively reduces exposure to radiation is

If there are no teeth to serve as guides, which of the following landmarks indicates a maxillary molar area radiograph?

Which of the following landmarks is useful when mounting films in the posterior area?

Which of the following cells exposed to radiation may be associated witht the leukemia?

The best way to correct a connecutting error is to adjust

The American Dental Association recommends that the radiograph be mounted with the embossed dots

Which of the following radiation effects in severity as more radiation is absorbed by somatic cells?

To help desensitize the tissue prior to film placement, the dental assistant should

The annual maximum accumulated dose (MAD) of radiation for dental assistant is based on which of the following calculations?

Light- colored radiographs commonly result from

Using the ALARA concept as a qudeline for radiographs includes all of the following EXCEPT

The most common radiographic exposure used to evaluate a dental implant on a sult is

Which of the followijng will best protect the dental assistant from cross-contamination while exposing radiographs?

Dental healthcare personnel who are pregnatn can expose radiogrphs during the

The radiation tha is formee by the interatiosn of x-rays with matter is

The expiration date on dental x-ray film is printed

Compared to a round-indicating device (PID), which of the following PIDs reduces patient radiation exposure by up to 70 percent?

Which of the following tissues is the most highly radiosensitive?

Cells most susceptible to radiation damge are

The time beteween patient exposure to radiation and teh appearance of biological damage is the

The median palatal is visible on which of the following radiographs?

Added filtration in the x-ray tubehead protects the

Where is the most commom area in the oral cavity for a dentigerous cyst?

Which of the following radiolucent landmarks is useful when monitoring films in the mandibular anterior area?

Radiation injury can be measured by

What size film, wen placed vertically in the anterior region of the mouth, is most effective for eveluating caries and periodontal health?

When changing the 8- inch PID to a16-inch PID, which of te following is used t determine the intensity of the beam?

All of the following can be used for handling film in the daylight loader EXCEPT

Which of the following radiographic errors is caused by removing a film too quickly from a tightly packed box?

The occlusal plane will appear diagonal in the radiograph when there is a/an

Which of the following extroral radiographs is used to evaluate impacted teeth, large lesions and fractures of the mandible?

To reduce the patients anxiety about radiographic exposure the dental assistant should

Which off the following is a DISADVANTAGE of panoramic radiographs?

Which of the following may cause unnecessary radiation exposure to the patient?

Which of the following describes a double-ended film holder used for posterior and anterior teeth?

Which of the following is the most essential when labeling the film mount?

In dental readiography, the purpose of the fixer solution is to

The purpose of hte aluminum disc in the x-ray tubehead is to

According to the CDC, how are the transmission of pathogens minimized when using phosphor sensors to capture radiographic images?

Foreshortening of the maxillary radiographic image results from

Which film would be exposed to see the relationshi[ of the alveolar bone?

Which of the following is the most effective method of reducing patient exposure to x-radiation?

Radiation injury results from

Which of the following protection techniques is used to minimize x-radiation exposure to the operator?

Which of the following describes how most radiographic carious lesions appear?

Processed films should be handled by the edges to prevent

Which of the following can be used to measure excessive occupational exposure?

When removing a protective barrier after the exposure of radiographs, if a dental assistant touches the surface benasth the barrier the dental assistant must

The most radiolucent area on the anterior radiograph is the

During radiographic exposures, semi-critical items that must be sterilized of disposed of include

For x-rays machines operating in ranges at or below 70 kVp, the total aluminum equivalent filtration must be a minumum of

The best way to prevent cross-contamination from an exposed film packet is by

Patient shoud wear a thyroid collar during which type of radiographic eposure?

Which of the following is the first step in processing radiographic film?

When preparing to take digital radiograph, after selecting the appropiate sensor size for the patient, the next step is to

On a radiograph, what is the dense radiopaque band the outlines the edge of the mandible?

Which of the following would cause a radiopaque artifact on a radiograph?

A radiogpah will automatically be retaken when there is a

ALARA is primarily concerned with the radiation that is

Which of the following prevents x-rays from escapng the tubehead?

After the completion of radiographic procedure, the PID should be

To view an abcess on tooth #25, the best radiographic exposure is a/an

Compared to the paralleling technique a DISADVANTAGE of the bisecting angle technique is

Which of the following would case elongation on a radiograph?

To maintain quality assurance whille processing films, dental assistant should record

After an exposed film has been removed from a patient's mouth, the next step is to

Which of the following was established to adress the education ad certification of operators of radiographic equipment?

Long-term effects of exposure to radiation may be associated with

Dental x-rays should be prescribed when the

Which part of the x-ray machine should be covered of disinfected after each patient?

Which of following radiolucencies may be mistake for caries?

Which of the following film sizes would be used for an adult periapical film?

Which of the following helps to decrease exposure of the thyroid gland from the primary radiation beam?

When taking on occlusal radiograph, the film packet should extend from the patients mouth by approximately

Before exposing radiographs on a minor, the dental assistant should

Patients receive less radiation when using a/an

Which of following must be monitored for radiation leakage?

The lead apron and thyroid collar used during radiography should be disinfected

The total destruction of microorganisms and spores on reuseable instruments is accomplished by

A panoramic image appears to have "reverse smile" when the

Dilaceration in a radiogrpahic image indicates the

The BEST radiogrpah to evaluate a suspected salivary stone in the submandibular gland is a/an

Which of the following sequences best desribes radiation injury to tissue?

Impacted third molar are best senn with what type of radiograph?

According to the inverse square law, when changing the PID length from 8 to 16 inches, the beam's intensity is

Compared to radiopaque structures, radiolucent structures

Which of the following landmarks are located by the midline to the mandible?

Which of the following measures the amount of radiation that reaches the surface of the skin?

The most common reason for taking bitewing radiogrpahs is to evaluate

Which of the following condition may mimic caries on an intaroral radiograph?

What can be done to stabilize the biteblock on a partially edentulous patient?

Which of the following affects the speed of the electrons emitted from the tubehead?

The population most susceptible to radiation damage is

When mounting periapical radiographs, what information helps to distinguish maxillary molar radiographs from mandibular molar radiographs?

When tubehead drifts, the first step the dental assistant should take is to

To produce ionizing radiation, an atom must

After a patient has been dismissed, dental unit surfaces and counter tops that may have been contaminated should be cleaned with as EPA-registered

Bitetabs placed on film for use during bitewing radiographs should be postioned on the

When preparing a patient for a radiographic procedure, PRIOR to putting on gloves the dental assistant should

The purpose of intensifying screens is to

Which of the following is a disposable intraoral x-ray film holder device?

Which of the following should be used to prevent cross- contamination from exposure buttons?

Which of the following is a measurement of tissue damage from x-ray energy?

The optimal temperature of the developer in automatic processing is

DUring the processing of x-ray film, the removal of the halide portion of the exposed silver crystals is called

The best way a dental assistant can minimize cross-contamination when exposing radiographs is to

When using an automatic processor, how many seconds should be allowed between the insertion of each dental film?

Which of the following could cause a straight black line/border to appear on a radiograph?

Radiographs appear dark after processing when the developing solution is

Processing tanks should be cleaned when the

Which of the following radiation injury theories describes cells that are damaged by the way of absorption?

The edentulous radiographic series may include all of the following EXCEPT