Radiology II

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  1. Define the term "triangulation
    Widening of the periodontal ligament space at the crest of the interproximal septum
  2. Radiographically, gutta percha is...
    radiopaque
  3. Interproximal decay and early bone loss is best seen on which radiographs?
    Bitewings
  4. Radiographically, calculus is ...
    Radiopaque
  5. What characteristics should you look for in determining normal versus abnormal radiographs
    • asymmetry in structures
    • breaks in continuity
    • change in dimension
  6. Caries viewed radiographically appear
    Radiolucent
  7. Radiographic interpretation of caries can be misleading in regard to...
    Relative depth and position in the tooth
  8. Will occlusal caries been seen earlier radiographically or on clinical exam?
    Clinical exam
  9. Is gingivities easily seen on radiographs?
    No
  10. Interproximal caries is frequently found in which area of the tooth?
    At or slightly apical to the contact point
  11. For periodontal prognoses, teeth that have anatomically short roots?
    Have a poorer prognosis when it comes to periodontal disease
  12. An example of caries that is almost never seen on radiographs.
    Lingual
  13. The healthy PDL surrounding a normal tooth appears radiographically as?
    Unbroken radiolucent line around the tooth root
  14. Will all calculus be seen radiographically?
    No
  15. Interproximal caries often appear as?
    Moon or wedge-shaped radiolucence
  16. Caries that radiographically involve the dentin are classified as?
    Advanced
  17. Radiographically, a newer composite restoration is?
    Radiopaque
  18. Radiographically, amalgam is?
    Radiopaque
  19. Hypercementosis
    • Excess deposition of cementum on the root surface
    • Associated with patients who have Paget's disease
  20. Bone sclerosis appears
    Radiopaque
  21. Will there be radiographic changes during the acute phase of a periapical abscess
    No
  22. What can bitewing projections not be used to detect?
    • Periapical pathology
    • Condensing osteitis
    • Root fracture
    • Hyperecementosis
  23. What are examples of radiolucent structures on radiographs?
    • Periapical granuloma
    • First-stage periapical cemental dysplasia
    • Pulp necrosis
  24. Is physiologic resorption associated with the normal shedding of primary teeth?
    Yes
  25. What is another name of a periapical cyst?
    Radicular cyst
  26. How do a periapical cyst and a periapical granuloma appear radiographically?
    They may appear identical
  27. What is another name for a pulp denticle?
    Pulp stone
  28. Is thickening of the apical periodontal ligament space a radiographic sign of pulpitis?
    No
  29. How does pulpal sclerosis appear on radiographs?
    Radiopaque
  30. How do pulp chambers and canals of teeth in older patients tend to be?
    Calcified
  31. How do periapical abscesses appear on radiographs?
    Radiolucent
  32. Is sclerotic bone associated with non-vital teeth?
    No
  33. What is the first detectable radiographic sign of periapical pathology?
    Thickening of the periodontal ligament
  34. Both internal and external idiopathic root resorption result in what?
    Pulp necrosis
  35. All cysts located in bone will be seen as what?
    Radiolucent areas
  36. Permanent distortion of the shape and relationship of the root of a tooth is called what?
    Dilaceration
  37. A club-shaped root is usually a sign of what?
    Hypercementosis
  38. When teeth chip easily and radiographs reveal short roots and early pulp calcification, what is present?
    Dentinogenesis imperfecta
  39. Dental papilla radiographically will resemble what?
    Periapical pathology
  40. Complete absence of teeth is known as what?
    Anodontia
  41. Teeth with "dens invaginatus" will have what?
    A poor prognosis
  42. A mesioden is always...
    Found in the midline
  43. A fused incisor will appear radiographically to have?
    One large crown and two root canals
  44. Teeth in the area of fissural cysts usually test?
    Vital
  45. What is another name for an enamel pearl?
    Enameloma
  46. Concrescence is the anomaly known as what?
    Where is it most often seen?
    • Two adjacent teeth are united by cementum
    • Usually discovered on radiographs
  47. Gemination
    • Single tooth attempts to divide in to 2 teeth
    • 1 foot and canal, 2 joined crowns with notched incisal area
  48. Image Upload
    Describe the ADA Perio case type of this patient
    Perio Case Type IV
  49. The arrows are pointing at decay on these teeth. Describe the severity of these lesions as seen radiographically.
    Image Upload
    Incipient
  50. What types of restorations are on teeth 4, 5 and 28?
    Image Upload
    Stainless Steel Crowns
  51. The radiopaque entity located at the distal root tip of tooth #19 is?
    Image Upload
    Condensing osteitis
  52. The developmental disturbance demonstrated in this radiograph is known as?
    Image Upload
    Globulomaxillary cyst
  53. How will root tips appear on radiographs?
    Radiopaque
  54. Will a malignant lesion usually have an irregular border?
    Yes
  55. What is the best projection to visualize a sialolith of the submandibular duct?
    Right-angle mandibular occlusal projection
  56. Slow growing lesions, such as cysts, will usually move teeth?
    Yes
  57. Do Pagent's disease, certain types of anemia and hyperparathyroidism are all examples of metabooic conditions that manifest theselves with changes of the trabecular pattern and lamina dura of the bone in the mandible and maxilla?
    Yes
  58. Is the dental hygienist's role not to diagnose diseases but to recognize the change from normal as seen on radiographs?
    Yes
  59. Fractures of the mandible that are not overlapped will?
    Appear as radiolucent lines
  60. A malignant tumor of the bone will appear how on radiographs?
    Radiopaque
  61. Implants will appear ___ on radiographs?
    Radiopaque
  62. An injury produced by an external force?
    Trauma
  63. Complete displacement of a tooth from the alveolar bone?
    Avulsion
  64. The breaking of a part?
    Fracture
  65. Abnormal displacement of teeth out of bone?
    Extrusion
  66. Abnormal displacement of teeth?
    Luxation
  67. Abnormal displacement of teeth into bone?
    Intrusion
  68. The area between teeth #29 and #31 represents?
    Image Upload
    Extraction socket
  69. What is occurring on the distal root of tooth "K"?
    Image Upload
    Internal resorption
  70. What condition is noted around the root of tooth #6?
    Image Upload
    Hypercementosis
  71. What condition might you suspect regarding tooth #20
    Image Upload
    Mobility
  72. Name the type of caries seen in this slide (#20D)
    Image Upload
    Root caries
  73. What optical illusion is demonstrated on teeth #28 and 29?
    Image Upload
    Contrast band effect
  74. What pattern and severity of bone loss is seen on the mesial aspect of tooth #31?
    Image Upload
    Severe vertical bone loss
  75. The condition of bone, pointed out by the arrows is?
    Image Upload
    Vertical bone loss
  76. This radiograph is of an 11-year-old patient. The radiolucency at the apices of tooth #31 (second molar) that has no caries or restorations is probably?
    Image Upload
    Incomplete root formation
  77. The gag reflex is?
    A body defense system
  78. If a patient gags while taking radiographs, what is the best thing to do?
    Recommend accupressure, breathing through the nose and distract the patient
  79. The tube shift technique is useful clinically in?
    Localizing objects in the third plane
  80. A typical number of films needed when taking an FMS on an edentulous patient is?
    13
  81. How do you BEST provide client management, when taking radiographs?
    Maintain a "light touch," build rapport, be professional and explain the procedure
  82. What items does the clinician look for with an edentulous patient when taking radiographs?
    • Retained root tips
    • Cysts
    • Impacted teeth
    • Pathologic conditions
  83. Exposure of a radiograph on a child:
    Requires less time than an adult
  84. The condition where a patient cannot open their mouth due to infection or trauma is known as?
    Trismus
  85. When taking an FMS on children, the exposure is generally reduced by ___ of an adult dose.
    1/3
  86. With an edentulous patient, the exposure is decreased by?
    A factor of four (4)
  87. With an edentulous patient, 18 impulses would be reduced to?
    14 impulses
  88. If an impacted third molar seems to have moved mesially on the second film when the horizontal angulation is increased distally (the PID is moved distally), the impaction might be?
    Buccal
  89. Placebo techniques very often work with?
    Patients who have a tendency to gag
  90. If the need for taking an FMS on a 5-year-old child should arise, it would be best to take?
    12 size 0 films
  91. Is it very difficult to use the paralleling technique on a patient who has large exostoses on the buccal surface of the jaws?
    No
  92. When taking an edentulous series, using intraoral size 2 film, the exposure time is reduced by?
    1/4
  93. Is it permissible for a caregiver or parent to be in the operator when radiographs are taken of a patient with a disability?
    Yes
  94. As a general rule, it is best to use the ___ film size that can be accommodated comfortably by the patient.
    Largest
  95. Another name for a "right angle" occlusion film is?
    Cross sectional film
  96. What is the least reliable way to localize an impaction in the bucco-lingual plane?
    Localization by definition
  97. What is the condition pointed out in this radiograph?
    Image Upload
    Cervical burnout
  98. Ghost images are a major disadvantage of panoramic radiographs. They generally are?
    • Blurred, magnified and distorted images on the film
    • Located above and on the opposite side of the original image
  99. A white inverted V-shaped radiopacity on the bottom of the film is most likely caused by?
    Lead apron artifact
  100. In the panoramic image, widening of the anterior teeth along with ghosting of the contralateral rami occur when the patient is positioned?
    Too far backward
  101. In positioning the patient for a pantomographic radiograph, if the patient is too far forward:
    The upper and lower anterior teeth will be blurred
  102. When one condyle is higher and bigger than the other in the panoramic image, the patient's head is?
    Tilted
  103. Intensifying screens function to convert:
    X-ray photons into light photons
  104. When the patient's chin is tipped too far downward for a panoramic radiograph:
    The radiographic image appears to "smile"
  105. Which of the following anatomic structures is usually not seen on intraoral periapical radiographs, but is seen on pantomographs?
    Mandibular foramen
  106. What is true regarding panoramic image production?
    • Panoramic image production is based upon the principle of tomography
    • Structures positioned within the focal trough will be seen clearly on the final radiograph
    • Structures positioned outside the focal trough will be blurred on the final radiograph
  107. If the patient fails to hold the dorsal surface of his tongue on the roof of the mouth:
    • A large black shadow will be present between the tongue and the palate
    • The roots of the maxillary teeth may be obscured
    • An airway shadow will result
  108. Which of the following statements best describes the disadvantages of panoramic radiographs?
    Panoramic films have overlapping of interproximal surfaces in the premolar area
  109. Are panoramic films recommended for the evaluation of periodontal diseases?
    No
  110. What is the error on this film?Image Upload
    Patient's tongue is not on the roof of the mouth
  111. What is the error seen on this film?Image Upload
    Patient's head is turned
  112. The radiopaque line identified by the arrows and the letter G is the?Image Upload
    Inferior border of the maxillary sinus
  113. The radiolucency outlined by the circle and identified by the letter C is the? Image Upload
    Mental foramen
  114. The radiopacity identified by the arrows and the letter H is the? 
    Image Upload
    Ghost image of the left mandible
  115. The radiopaque line identified by the arrows and the letter F is the?
    Image Upload
    Inferior border of the orbit
  116. The type of pantomograph that you are referring to in this question is?
    Image Upload
    Split image
  117. The bilateral radiopaque structure identified by the letter A is the?
    Image Upload
    Mandibular condyle
  118. The computer used for digital imaging...
    Can be used for other functions
  119. What is the magnetic resonance imaging technique better for visualization of?
    Soft tissues
  120. Sclerotic bone is associated with?
    Vital tooth
  121. Does indirect digital radiography involve 2 steps that result in an instantaneous image?
    No
  122. The definition seen on a digital image compared to film is?
    Slightly less than film
  123. The image shown in this picture is an example of?
    Image Upload
    CT (computed tomograph)
  124. In the optical scanning method, does one start with the finished, processed film?
    Yes
  125. MRI can be used for?
    • Pregnant patients
    • Nursing patients
    • Menopausal patients
  126. In computed tomography (CT) the image is formed by the?
    Computer
  127. The energy source used for computed tomography is?
    Ionizing radiation
  128. In comparison to the charged coupling device (CCD) or direct digital sensor, one advantage of the storage phosphor plate (PSP) is that the PSP is?
    Slightly more flexible
  129. Are CCD (charged coupling device) and PSP (phosphor storage plates) both types of direct sensors?
    No
  130. Digital radiography requires less radiation than conventional radiography because?
    The sensor is more sensitive to x-rays
  131. In magnetic resonance imaging (MRI) the powerful magnetic field in which the patient is placed...
    Temporarily realigns the tissue protons
  132. Interpret the severity of bone loss seen on this film
    Image Upload
    Moderate bone loss
  133. Does digital radiography use storage phosphor plates to record the image?
    No
  134. Interpret what is seen on this radiograph...severity of decay, surface, tooth number/letter...restoration tooth #, surface, material
    Image Upload
    • 13 D severe decay
    • 14 MO amalgam with base
    • 18 O amalgam
    • 19 DO amalgam
  135. Interpret the decay seen on this radiograph (incipient, moderate, advanced, severe) and name the tooth/teeth that are decayed
    Image Upload
    Severe occlusal decay on tooth #19
  136. Name the erupted teeth seen on this film
    Image Upload
    2, 3, 4, 5, C, 7, 27, 28, 29, 30, 30
  137. What restorations are seen on this image?
    Image Upload
    • #2 MOD amalgam
    • #4 PFM crown
    • #5 DO amalgam
    • #6 DI amalgam
  138. Name the teeth with decay
    Image Upload
    • A mesial
    • B distal
    • S distal
    • T mesial
  139. Name the type of restoration seen on this film as well as the tooth number. Indicate the type of material seen in the pulp canal
    Image Upload
    PFM (porcelain fused to metal) crown on #9 with gutta percha in pulp canal
  140. Indicate the decay, severity and location as well as the tooth number as seen on this film
    Image Upload
    • #J, severe distal decay
    • #14 advanced mesial decay
  141. Detail the surface and number of tooth where calculus is observed
    Image Upload
    • 20 distal
    • 19 medisal and distal
    • 18 mesial
    • 13 distal
  142. The radiopaque objected located in the area between teeth #6 and #8 is?
    Image Upload
    Dental implant
  143. The radiopacities seen in this radiograph depict?
    Image Upload
    Sialoliths
  144. The radiopacity seen in the bone in this radiograph is most likely a/an?
    Image Upload
    Amalgam tattoo
  145. What has occurred on tooth #9?
    Image Upload
    Root fracture
  146. The radiopacity seen between teeth #21 and #22 is commonly known as?
    Image Upload
    Odontoma
  147. The developmental disturbance demonstrated below is known as?
    Image Upload
    Taurodontism
  148. The radiograph below depicts?
    Image Upload
    Amelogenesis imperfecta
  149. What type of radiograph does this image depict?
    Image Upload
    Cephalometric projection
  150. Which projection is ideal for detecting arthritis, tumors, ankylosis, congenital defects and fractures of the CONDYLE?
    Transcranial TMJ projection
  151. Is the SUBMENTOVERTEX PROJECTION used to detect fractures of the zygomatic arch and to visualize the sphenoid and ethmoid sinuses, as well as the lateral wall of the maxillary sinus?
    Yes (True)
  152. Is the point of entry of the radiation for the Transcranial TMJ projection is on the same side of the head as the condyle being radiographed
    No (false)
  153. What size film would you choose to take an occlusal film on a 6-year-old child?
    Size 2
  154. The best extraoral projection for viewing an impacted right mandibular third molar when a panoramic machine is unavailable is the?
    Right lateral oblique
  155. The nose and forehead of your patient are touching the cassette while exposing a posteroanterior projection. A variation of this projection has the patient's nose and chin touching the cassette, with his/her mouth wide open. What is this variation called?
    Water's view of the sinuses
  156. What projection does this radiograph depict?
    Image Upload
    Waters view of sinuses
  157. The reverse bite-wing projection is technically a?
    Lateral oblique projection technique
  158. Cephalometric radiographs, primarily the lateral skull projections, are most often used in which area of dentistry?
    Orthodontics
  159. Is the lateral skull projection is used to view the skull in the anteroposterior (front to back) plane?
    No (false)
  160. What projection does this radiograph depict?
    Image Upload
    Posteroanterior projection
  161. The best way to visualize a salivary stone (sialolith) in the floor of the mouth is by using?
    Mandibular right-angle occlusla
  162. What is another name for the cephalometric projection?
    Lateral skull projection
  163. Is the lateral oblique extra-oral film an ideal projection to visualize supernumerary teeth located in the incisor region of the mandible?
    No (false)
  164. Extraoral radiographic technique may be used to?
    • Radiograph an area when more information is needed
    • Project intraoral areas when the patients cannot or will not tolerate intraoreal films
Author:
reccarynn
ID:
314468
Card Set:
Radiology II
Updated:
2016-03-06 21:03:48
Tags:
LCC Jones DH244A radiology
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Description:
Cards based on quizzes from DH 244A for winter term 2015
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