RHS Exam Prep - Questions With Effective Solutions
Periapical Correct Answer - radiographic image showing the crown, root
tip, & surrounding structures
Periapical radiographs used to detect: Correct Answer - any abnormalities
of the root structure & surrounding bone structure
Bitewing radiograph Correct Answer - image view showing the crowns of
both arches on one film
Bitewing radiographs used to detect: Correct Answer - or monitor
interproximal caries if the proximal surfaces of the teeth cannot be visually
tactilely examined
Full mouth series radiograph Correct Answer - is composed of a series of
individual images, including a combination of bitewing & periapical
Purpose of full mouth series: Correct Answer - as a baseline on the health
of your mouth
Occlusal radiograph Correct Answer - image that shows large areas of the
maxilla or mandible
Occlusal radiograph purpose: Correct Answer - help track the
development & placement of a section or entire arch of teeth in the upper or
lower jaw
Panoramic radiograph Correct Answer - provides full view of the upper &
lower jaw
Panoramic radiograph purpose Correct Answer - allows us view your
head, neck, & jaw, & how they work together as a whole
Cephalometric radiograph Correct Answer - extraoral radiograph of the
bones & tissues of the head
Cephalometric radiograph purpose Correct Answer - enables the dentist to
capture a complete radiographic image of the side of the face
,CBCT (cone beam computed tomography) Correct Answer - three
dimensional digital imaging method that uses a cone-shaped beam of
radiation that rotates around the patient
CBCT (cone beam computed tomography) purpose Correct Answer -
allows accurate, three dimensional (3D) imaging of hard tissue structures
Radiolucent Correct Answer - - portion of an image that is dark or black;
- the passage of x-rays w/relatively little attenuation by absorption
Radiopaque Correct Answer - - portion of an image that appears light or
white
- strongly inhibiting the passage of x-rays
Phosphor plates are processed by using: Correct Answer - laser beam
technology
Most bilateral findings in images are considered: Correct Answer - normal
anatomic landmarks
Impacted third molars are best seen w/what type of radiograph? Correct
Answer - Panoramic
Which of the following is automatically labeled on the computer template for
an image? Correct Answer - Date of image
The main purpose of using a lead apron w/a thyroid collar when exposing
dental radiographs is to protect the patient from: Correct Answer - scatter
radiation
For x-ray machines operating in ranges at or below 70 kVp, the total
aluminum equivalent filtration must be a minimum of: Correct Answer -
1.5 mm
Foreshortening of the maxillary radiographic image results from: Correct
Answer - increased vertical angulation
, After a patient has been dismissed, dental unit surfaces & counter tops that
may have been contaminated should be cleaned w/an EPA-registered:
Correct Answer - intermediate-level disinfectant
Dilaceration in a radiographic image indicates the: Correct Answer - root
shape is abnormally bent or curved
Somatic effects of radiation do NOT have damaging effects on: Correct
Answer - offspring
Which of the following will best protect the dental assistant from cross-
contamination while exposing radiographs? Correct Answer - Gloves
The time between patient exposure to radiation & the appearance of
biological damage is the: Correct Answer - latent period
Which of the following cells exposed to radiation may be associated
w/leukemia? Correct Answer - somatic
When documenting a lesion found on an image, all of the following should be
described EXCEPT: Correct Answer - severity
A panoramic image appears to have a "reverse smile" when the: Correct
Answer - Frankfort plane is angled upward
A cephalometric radiograph is PRIMARILY used to evaluate: Correct
Answer - lateral jaw development
Compared to radiopaque structures, radiolucent structures: Correct
Answer - appear dark on an image
The radiation that is formed by the interaction of x-rays w/matter is:
Correct Answer - secondary radiation
Which of the following anatomical landmarks is NOT normally seen on
intraoral radiographs? Correct Answer - Frontal sinus
Compared to a dentulous patient, radiographic exposure time on an
edentulous adult patient should: Correct Answer - decrease
Periapical Correct Answer - radiographic image showing the crown, root
tip, & surrounding structures
Periapical radiographs used to detect: Correct Answer - any abnormalities
of the root structure & surrounding bone structure
Bitewing radiograph Correct Answer - image view showing the crowns of
both arches on one film
Bitewing radiographs used to detect: Correct Answer - or monitor
interproximal caries if the proximal surfaces of the teeth cannot be visually
tactilely examined
Full mouth series radiograph Correct Answer - is composed of a series of
individual images, including a combination of bitewing & periapical
Purpose of full mouth series: Correct Answer - as a baseline on the health
of your mouth
Occlusal radiograph Correct Answer - image that shows large areas of the
maxilla or mandible
Occlusal radiograph purpose: Correct Answer - help track the
development & placement of a section or entire arch of teeth in the upper or
lower jaw
Panoramic radiograph Correct Answer - provides full view of the upper &
lower jaw
Panoramic radiograph purpose Correct Answer - allows us view your
head, neck, & jaw, & how they work together as a whole
Cephalometric radiograph Correct Answer - extraoral radiograph of the
bones & tissues of the head
Cephalometric radiograph purpose Correct Answer - enables the dentist to
capture a complete radiographic image of the side of the face
,CBCT (cone beam computed tomography) Correct Answer - three
dimensional digital imaging method that uses a cone-shaped beam of
radiation that rotates around the patient
CBCT (cone beam computed tomography) purpose Correct Answer -
allows accurate, three dimensional (3D) imaging of hard tissue structures
Radiolucent Correct Answer - - portion of an image that is dark or black;
- the passage of x-rays w/relatively little attenuation by absorption
Radiopaque Correct Answer - - portion of an image that appears light or
white
- strongly inhibiting the passage of x-rays
Phosphor plates are processed by using: Correct Answer - laser beam
technology
Most bilateral findings in images are considered: Correct Answer - normal
anatomic landmarks
Impacted third molars are best seen w/what type of radiograph? Correct
Answer - Panoramic
Which of the following is automatically labeled on the computer template for
an image? Correct Answer - Date of image
The main purpose of using a lead apron w/a thyroid collar when exposing
dental radiographs is to protect the patient from: Correct Answer - scatter
radiation
For x-ray machines operating in ranges at or below 70 kVp, the total
aluminum equivalent filtration must be a minimum of: Correct Answer -
1.5 mm
Foreshortening of the maxillary radiographic image results from: Correct
Answer - increased vertical angulation
, After a patient has been dismissed, dental unit surfaces & counter tops that
may have been contaminated should be cleaned w/an EPA-registered:
Correct Answer - intermediate-level disinfectant
Dilaceration in a radiographic image indicates the: Correct Answer - root
shape is abnormally bent or curved
Somatic effects of radiation do NOT have damaging effects on: Correct
Answer - offspring
Which of the following will best protect the dental assistant from cross-
contamination while exposing radiographs? Correct Answer - Gloves
The time between patient exposure to radiation & the appearance of
biological damage is the: Correct Answer - latent period
Which of the following cells exposed to radiation may be associated
w/leukemia? Correct Answer - somatic
When documenting a lesion found on an image, all of the following should be
described EXCEPT: Correct Answer - severity
A panoramic image appears to have a "reverse smile" when the: Correct
Answer - Frankfort plane is angled upward
A cephalometric radiograph is PRIMARILY used to evaluate: Correct
Answer - lateral jaw development
Compared to radiopaque structures, radiolucent structures: Correct
Answer - appear dark on an image
The radiation that is formed by the interaction of x-rays w/matter is:
Correct Answer - secondary radiation
Which of the following anatomical landmarks is NOT normally seen on
intraoral radiographs? Correct Answer - Frontal sinus
Compared to a dentulous patient, radiographic exposure time on an
edentulous adult patient should: Correct Answer - decrease
