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Which of the following statements regarding orientation of a film packet is FALSE?


A) The white, unprinted side of the film packet must face the source of radiation.
B) The identification dot should be positioned toward the apices of the teeth when placing periapical radiographs.
C) The identification dot is used during interpretation of the radiograph to distinguish between the patient's left and right sides.
D) The film may be positioned with the long dimension vertically or horizontally when placing posterior bitewing radiographs.

E) B) and C)
F) A) and D)

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Periapical radiographs can be taken with each of the following image receptor sizes EXCEPT one. Which one is the EXCEPTION?


A) 0
B) 1
C) 2
D) 3

E) A) and B)
F) B) and D)

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Each of the following is standard placement for a full mouth series of periapical radiographs using a size #2 image receptor on an adult patient EXCEPT one. Which one is the EXCEPTION?


A) Four incisor periapical radiograph
B) Four canine periapical radiographs
C) Four premolar periapical radiographs
D) Four molar periapical radiographs

E) All of the above
F) None of the above

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Aligning the PID in the vertical and horizontal dimensions is called what?

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The point of entry. Points of ...

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Which of the following is NOT a shadow-casting principle?


A) Use the largest possible source of radiation (focal spot) .
B) The tooth should be as far as possible from the source of radiation.
C) The tooth and image receptor should be as close together as possible.
D) The tooth and image receptor should be parallel to each other.

E) B) and D)
F) C) and D)

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Which of the following is NOT an intraoral radiograph?


A) Occlusal
B) Bitewing
C) Panoramic
D) Periapical

E) A) and C)
F) None of the above

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The bisecting technique originated from the rule of isometry.

A) True
B) False

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Placing the dot in the slot of the film holder positions the identification dot toward the apices of teeth.

A) True
B) False

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Which of these statements is FALSE?


A) The two basic techniques employed in intraoral radiography are bisecting and paralleling.
B) The paralleling technique arose through application of the rule of isometry.
C) Both the paralleling and the bisecting techniques can be modified to meet special conditions.
D) The paralleling technique is newer than the bisecting technique.

E) None of the above
F) A) and B)

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Which of the following statements is FALSE?


A) A minimum of 10 periapical radiographs is required for a full mouth survey on an adult patient.
B) The long dimension of the image receptor is positioned horizontally in the posterior regions.
C) A size #1 image receptor is the best fit for the canine region.
D) Six size #2 image receptors may be used to record the maxillary and mandibular anterior region.

E) A) and D)
F) A) and C)

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A minimum of how many periapical radiographs should make up a full mouth survey for most adult patients?


A) 10
B) 12
C) 14
D) 16

E) A) and D)
F) All of the above

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Which of these statements is FALSE?


A) Incorrect vertical angulation results in overlapped contact points.
B) Negative angulation is generally used for exposure of the mandibular arch.
C) Positive angulation is generally used for exposure of the maxillary arch.
D) An image receptor will aid the radiographer in determining the correct angulations.

E) None of the above
F) A) and B)

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The word "periapical" is derived from the Greek word peri (meaning around) and the Latin word apex (meaning highest point).

A) True
B) False

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Radiographs are shadow images on an image receptor.

A) True
B) False

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What are the units used to describe angulation?

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Angulation. The swivel joints ...

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Which of the following statements is FALSE?


A) Determining horizontal angulation is the same for both the bisecting and the paralleling techniques.
B) Vertical angulation is accomplished by directing the central ray parallel to the image receptor.
C) Angulation is changed by rotating the tube head horizontally and vertically.
D) To change horizontal angulation, the tube head is swiveled from side to side.

E) None of the above
F) C) and D)

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Why is it important to not position the embossed dot on the film near the apices of the teeth?

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An image receptor or film hold...

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Periapical radiographs can image only one tooth on each radiograph.

A) True
B) False

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Which of the two techniques for obtaining intraoral radiographs is considered the technique of choice?

A) True
B) False

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Neither the paralleling nor the bisecting technique completely meets all five requirements for accurate shadow casting in all regions of the oral cavity on all patient types.

A) True
B) False

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