Radiography

Radiography Knowledge Quiz

Test your knowledge on radiography with our comprehensive quiz designed for students and professionals alike. This quiz covers various aspects of radiographic techniques, interpretation, and positioning.

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10 Questions2 MinutesCreated by ExaminingXray247

The earliest radiographic appearance of periapical inflammatory change is:

A well-defined periapical radiolucency

Sclerosis of the bone surrounding the apex

Widening of the apical periodontal ligament space

Resorption of the apical lamina dura

A poorly defined periapical radiolucency

When positioning a patient for a panoramic radiograph:

The patient's spine should be straight to minimise the standard ghost shadow superimposed on the anterior part of the image

Light beam markers are used to ensure that the Frankfort plane is vertical

The patient should be instructed keep their mouth open during the exposure to allow better visualisation of the anterior teeth

The patient should be instructed to press their tongue against the roof of the mouth to eliminate any air shadow overlying the upper teeth

The patient's head should be immobilised

Regarding positioning when taking an oblique lateral radiograph:

A. The patient's head is normally rotated away from the side under investigation

B. The image receptor is always placed on the opposite side to the region under investigation

C. The X-ray tubehead should be aimed from behind the ramus through the radiographic keyhole when the mandibular and maxillary teeth are under investigation

D. The X-ray tubehead should be positioned beneath the lower border of the mandible of the contralateral body of the mandible when the mandibular teeth are under investigation

E. The patient's chin is lowered

Common errors in bitewing radiography encountered when not using an image receptor holder with beam-aiming device include:

A. The image receptor being positioned too far anteriorly in the mouth

B. The image receptor being displaced by the tongue

C. The X-ray tubehead being positioned too far posteriorly

D. The X-ray tubehead being positioned with an incorrect vertical angulation

E. The X-ray tubehead being positioned with an incorrect horizontal angulation

During oblique lateral radiography, in what circumstances can the Operator hold the cassette against the patient's face?

A. When the patient is too frail to hold the cassette themselves

B. When the patient is nervous and needs assistance

C. Under no circumstances

D. When the patient has difficulty understanding the Operator's instruction

The main methods used to localise unerupted maxillary canines include:

A. Parallax in the horizontal plane using two periapicals

B. Parallax in the horizontal plane using a panoramic and an upper standard occlusal

C. Lower 90° occlusal

D. Parallax in the vertical plane using a panoramic and an upper standard occlusal

E. Cone beam computed tomography

Why is an oblique lateral radiograph called 'oblique'?

A. Because the image receptor is held parallel to the patient's sagittal plane

B. Because the image receptor is held parallel to the patient's Frankfort plane

C. Because the image receptor is held at an angle to to the patient's sagittal plane

D. Because the image receptor is held at an angle to the patient's Frankfort plane

How do you immobilise the patient's head for a cephalometric lateral skull radiograph?

A. By centring the canine positioning light beam on the corner of the mouth.

B. Using a chin rest and bite peg

C. Using plastic ear rods

D. Using an image receptor holder and beam aiming device

When interpreting radiographs:

A. A systematic approach is necessary

B. Only the area of interest should be examined

C. The chronological and developmental age of the patient is irrelevant

D. A full description of the specific lesion is necessary

E. No useful information can be obtained from previous radiographs

The radiographic description of a radiolucent or radiopaque lesion should include the:

Radiography

Radiography Knowledge Quiz

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