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WorksheetsRadiology Derby's
Total questions: 47
Worksheet time: 24mins
1. Which type of caries is visible on teeth #3 and # 14?
Ò Interproximal
ÒOcclusal
Buccal/lingual
ÒRoot
2. Which type of caries is visible on thooth # 29?
ÒA. No caries are visible
ÒB. Interproximal
ÒC. Occlusal
ÒD. Root
3. Which restorative material is seen on tooth #9?
ÒA. Gutta percha and metal crown
ÒB. Silver points and all-porcelain crown
ÒC. Gutta percha and composite
ÒD. Post-and-core restoration
4. The arrow is pointing to which radiopaque anatomic structure?
ÒA. External oblique ridge
ÒB. Mandibular canal
ÒC. Condensing bone
5. In adittion to the panoramic image, which intraoral images would be most beneficial for the total care of this patient?
ÒA. Maxillary and Mandibular occlusal images
ÒB. Four horizontal bitewing images
ÒC. Four vertical bitewing images
ÒD. A full-mouth series
6. All the anatomic landmarks may be on this image EXCEPT:
ÒA. Incisive foramen
ÒB. Median palatal suture
ÒC. Maxillary torus
ÒD. Inferior nasal conchae
7. The yellow arrow is pointing to a V-shape radiopacity. What is this radiographic finding?
ÒA. Antrior nasal spine
ÒB. Nasal septum
ÒC. Nutrient canal
ÒD. Root fracture
8. Which tooth has been extracted and is not visible on this periapical image?
ÒA. #4
ÒB. #5
ÒC. 12
ÒD. #13
9. Which tooth surface demostrates interproximal caries?
ÒA. Distal of maxillary premolar
ÒB. Mesial of maxillary first molar
ÒC. Distal of maxillary first molar
ÒD. Mesial of maxillary second molar
10. Which restorative material is present on the maxillary first molar?
ÒA. Amalgam
ÒB. Amalgam with base material
ÒC. Gold
ÒD. Composite
11. Along with bone loss and calculus deposits, what other radiographic sign indicate
ÒA. Furcation involment
ÒB. Cantilevered bridge
ÒC. Root caries
ÒD. Attachatment loss
12. The cantilevered bridge is fabricated from what dental material?
ÒA. Gold
ÒB. Porcelain
ÒC. Stainless steel
ÒD. Porcelain-fused-to-metal
13. The yellow arrow is pointing to which radiographic finding?
ÒA. Zygomatic arch
ÒB. Zygoma
ÒC. Maxillary tuberosity
ÒD. Scratched emulsion
Use fig. 6.41 to answer questions 14 and 15.14. The overlapped contact area between teeth #18 and 19 was the result of
ÒA. Too much vertical angulation
ÒB. Too little vertical angulation
ÒC. Incorrect horizontal angulation
ÒD. Improper receptor placement
15. The yellow arrow is pointing to which readiographic finding?
ÒA. The identification dot
ÒB. Submandibular fossa
ÒC. Mental Foramen
ÒD. Periapical pathology
16. Which is an appropiate condition to expose a periapical image?
ÒA. Pulpitis
ÒB. Slight bone loss
ÒC. Amalgam overhang
ÒD. Interproximal caries
17.Which would be an appropiate reason to expose an occlusal image?
ÒA. Mucocele
ÒB. Salivary stones
ÒC. Advanced bone loss
ÒD. Temporomandibular joint (MT) disorder
18. Which is a suitable use of a panoramic image?
ÒA. Diagnosis os occlusal caries
ÒB. Assessment of eruption patterns
ÒC. Evaluation of periapical pathology
ÒD. Measurement of periodontal bone loss
19. Which type of caries does not involve the enamel surface?
ÒA. Root
ÒB. Rampant
ÒC. Recurrent
ÒD. Interproximal
20. A male patient has been diagnosed with slight to moderate periontitis. He declines the prescription of a full-mouth series due to concern with x-radiation. Which exposures would be appropiate to replace the intraoral periapical series?
ÒA. Maxillary and mandibular occlusal radiographs.
ÒB. Panoramic
ÒC. Four vertical bitewings
ÒD. Four horizontal bitewings
21. Which exposure factor controls the penetrating power of the x-ray beam?
ÒA. Time
ÒB. Voltage
ÒC. Milliamperage
ÒD. Kilovoltage peak
22. Which speed of film is currently recommended by the american dental association (ada) and the american academy of oral and maxillofacial radiology (aaomr)?
ÒA. C
ÒB. D
ÒC. E
ÒD. F
23. Which error produce a lighter radiographic image?
ÒA. Timer set too long
ÒB. Film exposed to light
ÒC. Fixer solution too weak
ÒD. Developer solution too warm
24. Your film exits the automatic processor completely clear. What is the most vommon reason for this appearance?
ÒA. Expired film
ÒB. Exposed to white light
ÒC. Not exposed to radiation
ÒD. Exposed backward in the mouth
25. The patient states that movement occured during x-ray exposure. Which will result on the image?
ÒA. Decreased distorsion
ÒB. Increased sharpness
ÒC. Decreased sharpness
ÒD. Increased magnification
26. All are examples of particulate radiation except:
ÒA. UV rays
ÒB. Neutrons
ÒC. Protons
ÒD. Alpha particles
27. The directional flow of electons inside the x-ray tube is influenced by which component?
ÒA. aluminum filters
ÒB. Focusing cup of the cathode
ÒC. Heated filament
ÒD. Tungsten target
28. After the exposure buttom is pressed, what is the approximate amount of x-ray energy produced in the x-ray tube?
ÒA. Less than 1%
ÒB. 10%
ÒC. 25%
ÒD. 50%
29. Which term describes the speed of a wave?
ÒA. Frecuency
ÒB. Velocity
ÒC. Wavelength
ÒD. Quantum
30. The useful beam is also referred to as which type of radiation?
ÒA. Primary radiation
ÒB. Secondary radiation
ÒC. Scatter radiation
ÒD. General radiation
31. Free radicals are produced during the radiolysis of water that combine to form which toxin to living tissues?
ÒA. Cancer
ÒB. Lead
ÒC. Hydrogen peroxide
ÒD. Radon
32. Film speed is determined by three factors. Which is the exception?
ÒA. Size of the silver halide crystals
ÒB. Thickness of the emulsion
ÒC. Volume of adhesive layer utilized
ÒD. Presence of radiosensitive dyes
33. Which location would be unsuitable for storing intraoral film?
ÒA. Inside a protected drawer near the automatic film processor
ÒB. On a countertop in the office kitchen, near a microwave
ÒC. A temperature-regulated storage closet
ÒD. A supply inventory area with low humidity
34. A tubehead that drifts or moves during exposure may cause which radiographic error
ÒA. Magnification
ÒB. Distortion
ÒC. Streak artifact
ÒD. Sharpness
35. Which factor will increase the density of an image?
ÒA. Decrease time
ÒB. Increase milliampere
ÒC. Align the tooth and receptor parallel to each other
ÒD. use of a long position-indicating device (PID)
38. Clinical indication for exposure of periapical images include the following except:
ÒA. Previous endodontic therapy
ÒB. Dental implant evaluation
ÒC. Suspected tooth fracture
ÒD. Interproximal caries
39. The rule of isometry is applied in which intraoral radiographic technique?
ÒA. Paralleling
ÒB. Bisecting angle
ÒC. Bitewing
ÒD. Occlusal
40. Proper patient positioning for panoramic exposure requires which plane parallel to the floor?
ÒA. Frankfort
ÒB. Midsagittal
ÒC. Coronal
ÒD. Frontal
42. Which dental x-ray equipment in not with digital imaging?
ÒA. Film
ÒB. X-ray tubehead
ÒC. Lead apron
ÒD. Position indicating device (PID)
43. Vertical bitewing images may be prescribed for a patient with oral finding?
ÒA. Occlusal caries
ÒB. Supernumerary teeth
ÒC Periodontal disease
ÒD. Salivary stones
44. During panoramic exposures, which error appear if the patient is not sitting or standing straight?
ÒA. Anterior teeth appear narrow
ÒB. Hard palate is superimposed over tha maxillary roots.
ÒC. Vertical radiopacity seen in the center of the image.
ÒD. Ramus and posterior teeth are unequelly magnified.
45. Identify a radiolucent landmark of the maxilla:
ÒA. Mental ridge
ÒB. Lateral Fossa
ÒC. Coronoid process
ÒD. Nasal conchae.
46. Identify a radiopaque landmark of the mandible:
ÒA. External oblique ridge
ÒB. Nutrient canals
ÒC. Submandibular fossa
ÒD. Mental foramen
47. Identify the tiny opening in bone located on the internal surface of the mandible which appears as a small, radiolucent dot:
ÒA. Genial tubercles
ÒB. Incisive foramen
ÒC. Lingual foramen
ÒD. Septum
48. The sygomatic process is seen as a j-shaped radiopacity in which anatomic area?
ÒA. Dividing the nasal cavity
ÒB. Superior to the maxillary posterior teeth
ÒC. Superior to the maxillary posterior teeth
ÒD. At the apical portion of the mandibular premolars
Use fig. 6.42 to answer questions 49 to 52- 49. which restorative material has been used at the coronal aspect of the dental implant?
ÒA. Gold crown
ÒB. Amalgam
ÒC. Porcelain
ÒD. Porcelain-fused-to meatl crown
50. The inverted «y» represents the intersection of two structures: the nasal cavity and which structure?
ÒA. Nasal conchae
ÒB. Lateral fossa
ÒC. Anterior nasal spine
ÒD. Maxillary sinus
