42 Questions
Which of the following is a possible cause of an unexposed receptor when using film or sensors?
Failure to turn on the x-ray machine
What does an exposed film look like when it is accidentally exposed to light?
Black
Can an overexposed receptor occur with sensors?
No
Which technique may result in overlapped contacts on a dental image?
Bisecting technique
What is the result of excessive vertical angulation?
Foreshortening
What do elongated images look like?
Long and distorted teeth
What is the cause of a cone-cut on a dental image?
Misaligned PID
Where should the anterior edge of the premolar bite-wing receptor be positioned?
At the midline of the mandibular canine
What may happen if the bite-wing receptor is positioned too far back in the mouth for a premolar bite-wing?
The distal surfaces of the canines will not be visible on the image
What should the molar bite-wing show?
Both maxillary and mandibular molars
An underexposed receptor will appear
Light and low in density
What is the most common cause of underexposure?
Inadequate exposure time
What should a periapical image show?
The entire tooth, including the apex and surrounding structures
What is the result of incorrect horizontal angulation?
Overlapped contacts
What will an unexposed receptor look like?
Clear
What will a film exposed to light look like?
Black
What will an overexposed receptor look like?
Gray
Which technique may result in overlapped contacts on a dental image?
Both paralleling and bisecting techniques
What is the cause of a cone-cut on a dental image?
Misalignment of the PID
What does a cone-cut look like on a dental image?
A clear or white unexposed area
What is the result of excessive vertical angulation?
Foreshortening
Which of the following is a possible cause of an unexposed receptor when using digital sensors?
Receptor exposure
What is the cause of overlapped interproximal contacts on a bite-wing image?
Incorrect horizontal angulation
What should the anterior edge of the premolar bite-wing receptor be positioned to include?
Maxillary and mandibular premolars
What is the most common cause of overexposure?
Excessive exposure time
What is the most common cause of underexposure?
Inadequate exposure time
What is the result of incorrect vertical angulation?
Distorted image
What should the edge of the periapical receptor extend beyond the tooth?
One eighth of an inch
Which of the following is a possible cause of an unexposed receptor when using digital sensors?
Exposure to white light
What is the result of excessive vertical angulation?
Unexposed receptor
What should be done to protect the film from accidental exposure to light?
Turn off all the lights in the darkroom
Which of the following is a possible cause of an overexposed image?
Excessive exposure time
What should be checked on the x-ray machine to prevent overexposure?
Exposure time, kilovoltage, and milliamperage settings
What is the most common cause of underexposure?
Inadequate exposure time
What should be checked on the x-ray machine to prevent underexposure?
Exposure time, kilovoltage, and milliamperage settings
Which of the following is a possible cause of overlapped contacts on a periapical image?
Incorrect horizontal angulation
What is the result of excessive vertical angulation on a dental image?
Foreshortening
What does a cone-cut look like on a dental image?
A clear or white unexposed area
What is the result of insufficient vertical angulation on a dental image?
Elongation
Which of the following is a possible cause of an unexposed receptor when using film or sensors?
Underexposure
What may happen if the bite-wing receptor is positioned too far back in the mouth for a premolar bite-wing?
The distal surfaces of canines are not visible on the image
What should the edge of the periapical receptor extend beyond the tooth?
1-2 mm
Test your knowledge on identifying overlapped contacts in dental images. Learn about the causes of overlapped contacts and the techniques that may result in this issue.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
