Each of the following is characteristic of autism spectrum disorder (ASD) except, Which one is the exception?
A. Hearing and vision impairments
All the following may be utilized as stabilizing aids during a CBCT scan to avoid movement artifacts, except one. Which one is the exception?
A. Lead apron
Which of the following restorative materials appears the most radiolucent?
C. Silicate
A step-wedge is a device of layered metal steps of varying thickness used to
A. Test the strength of processing chemicals
Overlapping of adjacent teeth on the radiographic image most likely results from an error made in which of the following steps?
B. Horizontal angulation
Which of the following describes a CBCT image receptor that utilizes voxels to capture raw data?
D. Flat panel detector
Which of the following describes the area of interest that will be exposed during the scanning process?
B. Field of view
Which of these mandibular teeth generally have the longest roots?
A. Canines
Base material (calcium hydroxide paste) and cements exhibit approximately the same degree of radiopacity as:
B. Dentin
Which of these statements is false?
A. Chemical labels must be at least 3 inches by 5 inches in size
Which of the following dental materials will most likely ha a see-through appearance radiographically?
C. Stainless steel crown
Which of the following structures of the tooth appears the most radiopaque?
B. Enamel
To best accommodate patients with disabilities, dental radiographers should do which of the following?
D. Perform all the above
Each of the following statements regarding the coin test is correct, except one. Which one is the exception?
C. A coin is placed on top of the unwrapped for 10 minutes.
Switching from film-based radiography to a digital imaging system will eliminate the need for managing each of the following, except one. Which one is the exception?
D. Disinfectant
Which of the following statements is false regarding the patient with visual impairment?
D. Do not remove personal eyewear during the radiographic examination.
Which of these extraoral radiographs is most often used to aid in diagnosing temporomandibular joint problems?
B. Transcranial projection
When all three anatomical planes are viewed together, this is known as image...
C. Reconstruction
I a film is accidentally placed in the fixer solution before placing it in the developer, the resultant image will...
C. Be blank
In panoramic radiography, structures located at increasingly greater distance from the center of the focal trough will be...
D. Blurred out
Which of the following is considered a local contributing factor for periodontal disease?
D. All of the above
Which of the following restorative materials may appear radiopaque or radiolucent?
A. Composite
Panoramic images will record additional bones and structures of the Oral facial or maxillofacial region including all the following, except one. Which one is the exception?
D. Ligaments of the femur
When using the bisecting technique, excessive vertical angulation will result in...
D. Foreshortening of the teeth
At what age would a child most likely benefit from the exposure of two bitewing and two occlusal radiographs when a complete mouth examination is required?
B. 5 years
Which of the following is (are) necessary for film duplication?
D. All of the above
Light images may result from each of the following, except one. Which one is the exception?
C. Using an mA setting that was too high
Each of the following will aid in minimizing a hypersensitive gag reflex during the radiographic procedure, except one. Which one is the exception?
D. Begin the exposure in the posterior region
Each of the following conditions is necessary for safe lighting, except one. Which one is the exception?
C. Black darkroom walls
All of the following are recorded on a panoramic radiograph, except one. Which one is the exception?
A. Thoracic vertebra
Which extraoral radiographic image is used to examine fractures of the condylar neck?
D. Reverse towne
Which of these will appear radiopaque?
D. Osteoesclerosis
All of the following are recorded on a panoramic radiograph, except one. Which one is the exception?
C. Thoracic vertebra
An image receptor placed too far back in the back will result in not imaging the...
D. Anterior structures
Which of the following is the correct classification for proximal caries of enamel and detin at or through the dentinoenamel junction (DEJ) but less than halfway through the dentin toward the pulp?
B. C-3
Which of the following conditions resembles caries on a radiograph?
D. All of the above
Each of the following periodontal case types will reveal bony changes radiographically, except one. Which one is the exception?
C. Health or gingivitis
Bone loss between the roots of molar teeth is called?
D. Furcation involvement
Which of the following terms is used to describe a radiographic examination that detects anomalies and/or lesions different from which the examination was prescribed?
B. Opportunistic screening
Which of the following statements regarding tori is correct?
B. Tori are common bony protuberances in the oral cavity.
Which of these statements is false?
D. Not all patients have gag reflex
To mount radiographs, the radiographer must possess knowledge of:
D. All of the above
Which of the following extraoral radiographs is commonly assessed for in conjunction with intraoral radiographs for the child patient?
A. Panoramic
Which of these extraoral radiographs is most often used to examine the sinuses?
B. Waters
Which of the following is the correct term for a tooth that fails to erupt?
D. Impacted tooth
Which of these statements is false?
B. The preferred image receptor for use with a child with transitional dentition is size 1.
Duplicate radiographs are needed for all the following, except one. Which one is the exception?
C. Soft tissue assessment
A slanted or tilted occlusal plane results from which of the following?
A. Not positioning the edge of the image receptor parallel to the occlusal plane
What does CBCT stand for?
A. Cone beam computed tomography
Each of the following statements regarding dental radiography of the older adult patient is correct, except one. Which one is the exception?
D. If necessary, the radiographer should hold the image receptor in the patient's mouth during the exposure.
Anomalies and pathologic lesions and conditions must be described by...
D. All of the above
Which of these statements is false?
B. The lateral fossa appears as a radiolucency between the maxillary canine and first premolar
Which localization technique requires the exposure of an occlusal radiograph?
B. Right-angle method
Each of the following will appear radiopaque on a panoramic radiograph, except one. which one is the exception?
D. Infraorbital foramen
The caries process demineralizes tooth structures, allowing ___ x-rays to pass through the tooth and ___ the image.
D. More, darken
Which kVp setting produces the highest contrast between sound enamel and demineralization?
A. 70 kVp
Each of the following would result in a retake radiograph, except one. Which one is the exception?
D. Imaging 2mm of supporting bone beyond tooth apices
What term is used to describe images other than anatomy or pathology that do not contribute to a diagnosis of the patient's condition?
C. Artifacts
Which of these is NOT a method of localization?
C. Working radiograph method
Dental assistant and hygienist may:
C. Interpret dental radiographs and use them to help educate the patient regarding oral conditions.
Which of the following describes a malignant pathologic lesions?
A. Poorly defined border
Extraoral radiographs are useful for each of the following, except one. Which one is the exception?
C. Unexplained gingival bleeding
Which of the following is described by the radiolucency between the palate and tongue that present if the tongue is not correctly positioned against the palate during panoramic exposures?
A. Palatoglossal air space
Which of these will appear radiopaque?
A. Osteosclerosis
Which of these dental practitioners would most likely use a lateral cephalometric radiograph to assess growth and development?
B. Orthodontist
Overdevelopment results in which of the following?
A. Dark images
Which of the following is the best recommendation when it becomes impossible to place intraoral image receptor because of an exaggerated gag reflex?
C. Substitute an extraoral radiograph
If a film packet is placed in the patient's mouth correctly, which side will face the source of radiation?
C. The white, unprinted side with the embossed dot convex
Which of the following is least likely to be imaged on a radiograph?
D. Incipient occlusal caries
Which anatomical landmark is found in the maxillary anterior region of a panoramic radiograph?
A. Incisive canal
Which localization technique requires the exposure of only one radiograph?
C. Definitive evaluation method
Each of the following are options for communication with patients who have a hearing impairment, except one? Which one is the exception?
C. Use of speech reading behind the patient's back
Radiographs are helpful in revealing each of the following, except one. Which one is the exception?
D. Bluish gingiva
Each of the following statements regarding the gag reflex is correct, except one. Which one is the exception?
A. The radiographer should let the patient place the image receptor in his or her own mouth to help control the gag reflex
Which of the following terms describes a pathologic lesion located between teeth roots?
A. Interradicular
Which of the following terms describes a physical or mental impairment that substantially limits one or more of an individual's major life activities?
C. Disability
All of the following anatomical structures can mimic the appearance of carotid artery calcifications, except one. Which one is the exception?
D. Lip line
On a radiograph, an amalgam fragment may appear as a(n)...
D. Radiopacity
Each of the following is a quality control measure, except one. Which one is the exception?
A. Patient compliance determination
If a film is accidentally placed in the fixer before placing it in the developer, the resultant image will...
C. Be blank
Which of the following bone types will appear the most radiopaque?
B. Cortical
Which of the following statements regarding fil mounting methods is correct?
D. With the labial method, the viewer is reading the radiographs as if facing the patient
What agency sets and enforces regulations regarding safe handling of chemicals and materials and the management of potentially hazardous wastes used in dental radiography?
D. Occupational Safety and Health Administration (OSHA)
Each of the following is an indication to expose radiographs on children, except one. Which one is the exception?
B. Inspection of open interproximal contacts
Which of the following is recommended when exposing intraoral postmortem radiographs for forensic identification?
B. Paralleling technique
Which of these is NOT a normal radiographic landmark often imaged on intraoral radiographs?
B. The occipital bone
For caries to be imaged on a radiograph, approximately what percentage of calcium and phosphorous of the tooth structure must be lost?
C. 40-50 %
After orienting the embossed dots all the same way, the next suggested step when systematically mounting dental radiograph is to:
A. Separate bitewing radiograph from periapical radiographs
Cone cutting of the radiographic image most likely results from an error made in the following steps...
B. Centering the x-ray beam
Which of the following describes a disease characterized by the loss of skeletal bone density?
B. Osteoporosis
Which of the following soft tissues may be imaged on an intraoral dental radiograph?
D. Tip of the nose
All of the following are reasons to use handheld x-ray devices except one. Which one is the exception?
D. Radiographer preference
Improper or insufficient washing of radiographic films will result in:
A. Brown films
Composite resin is made of the following materials, except one. Which one is the exception?
A. Copper
Which of the following describes the radiographic appearance of the lamina dura?
B. A thin radiopaque border that outlines the root of the tooth
When using film, the corrective action for a radiograph that displays a " tire track" pattern is to:
C. Position film intraorally with the tube side toward the source of radiation
Each of the following appear radiopaque, except one. Which one is the exception?
A. Foramen
Which of the following describes a benign pathologic lesion?
C. Well-defined border
Each of the following must be added to radiographic findings for accurate diagnosis, except one. Which one is the exception?
B. Past radiation exposure
Each of the following is a possible location of caries, except one. Which one is the exception?