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Questions and Answers
What is often the earliest radiographic sign of periapical disease originating from the pulp?
What is often the earliest radiographic sign of periapical disease originating from the pulp?
- Loss of lamina dura
- Loss of periodontal space
- Break in lamina dura (correct)
- Widened periodontal space
What is a radiopaque projection located distal to the maxillary tuberosity likely to be?
What is a radiopaque projection located distal to the maxillary tuberosity likely to be?
- Mental ridge and mylohyoid ridge
- Mental ridge and malar process
- Coronoid process and hamular process (correct)
- Coronoid process and mylohyoid ridge
What is a key advantage of the paralleling technique over the bisecting-angle technique in dental radiography?
What is a key advantage of the paralleling technique over the bisecting-angle technique in dental radiography?
- Greater magnification of the image
- Central ray is perpendicular to an imaginary line
- Increased object-film distance
- Increased anatomic accuracy of the radiographic image (correct)
Why is the paralleling technique preferred over the bisecting-angle technique in dental radiography?
Why is the paralleling technique preferred over the bisecting-angle technique in dental radiography?
What will happen to a radiographic film if it's removed from its packaging and exposed to light before processing?
What will happen to a radiographic film if it's removed from its packaging and exposed to light before processing?
What is the purpose of filtering an x-ray beam?
What is the purpose of filtering an x-ray beam?
Which of these is characterized by teeth with a high degree of amber-like translucency and colors ranging from yellow to blue-gray and crowns that readily wear?
Which of these is characterized by teeth with a high degree of amber-like translucency and colors ranging from yellow to blue-gray and crowns that readily wear?
Which radiographic technique shows the upper and lower crowns on the same radiograph?
Which radiographic technique shows the upper and lower crowns on the same radiograph?
What condition is often associated with a 'cotton wool' appearance on a radiograph?
What condition is often associated with a 'cotton wool' appearance on a radiograph?
What is a localized growth of compact bone that extends from the inner surface of cortical bone into the cancellous bone called?
What is a localized growth of compact bone that extends from the inner surface of cortical bone into the cancellous bone called?
Flashcards
Periapical disease early sign
Periapical disease early sign
Earliest radiographic sign of periapical disease is widening of the periodontal ligament space.
Paralleling Technique Advantage
Paralleling Technique Advantage
The paralleling technique provides a more accurate radiographic image due to reduced distortion.
Light Exposure on Film
Light Exposure on Film
Exposing film to light turns it black after processing.
Film Emulsion Composition
Film Emulsion Composition
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Electron Binding Energy
Electron Binding Energy
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Bite-wing technique
Bite-wing technique
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"Soap bubble" radiolucency
"Soap bubble" radiolucency
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"Cotton wool" appearance
"Cotton wool" appearance
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Purpose of X-ray filtration
Purpose of X-ray filtration
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Dentinogenesis imperfecta
Dentinogenesis imperfecta
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Study Notes
- The earliest radiographic sign of periapical disease of pulpal origin is a loss of lamina dura.
- A radiopaque projection distal to the tuberosity of the maxilla may be the coronoid process or the hamular process.
- The paralleling technique's advantage over the bisecting-angle technique is the increased anatomic accuracy of the radiographic image.
- The paralleling technique is recommended because it gives a less distorted picture of the tooth's length.
- If a film is stripped and exposed to light, it will turn black after processing.
- Radiographic film emulsion consists of gelatin and silver bromide.
- The normal distance from the cementoenamel junction (CEJ) to the alveolar crest is 1.0 to 1.5mm.
- The differential diagnosis of radiolucent areas around the apex of teeth may include the maxillary sinus, incisive foramen, and mental foramen.
- Hydroquinone is the developer component that gives detail to the radiographic image.
- To avoid exposure to secondary radiation, the dentist should stand at least 6 feet from the source.
- The K-shell electron has the greatest binding energy to the nucleus.
- A unilocular radiolucent lesion in the area of a missing tooth where a tooth should have developed is most likely a primordial cyst.
- Potassium alum is a hardening agent used in film processing.
- Collimation of a beam refers to the reduction of the beam diameter.
- The bite-wing technique is used to show the upper and lower crowns on the same radiograph.
- Soap bubble radiolucency of the mandible is indicative of ameloblastoma.
- A cotton wool appearance on a radiograph is indicative of Paget's disease.
- The purpose of filtering an x-ray beam is to remove low-energy radiation.
- Teeth with amber like translucency and colors ranging from yellow to blue-gray, and crowns that readily wear, indicate dentinogenesis imperfecta.
- A localized growth of compact bone extending from the inner surface of cortical bone into the cancellous bone represents exostoses.
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