FREE AND STUDY GAMES ABOUT STACK 4318955 EXAM

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FREE AND STUDY GAMES ABOUT STACK #4318955 EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -24 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: To achieve parallelism between the receptor and the tooth, the distance must be increased to keep the receptor parallel with the long axis of the tooth.

Answer:

object-receptor Question 2: Limiting the size of the x-ray beam not only reduces the amount of skin that is exposed but also results in a significant reduction of radiation to the patient, by as much as 20%. (t or f)

Answer:

F

Question 3: Horizontal angulation

Answer:

basic rule of paralleling indicates that the central ray should be directed through the contact area of the teeth

Question 4: If you are using size 1 receptors, how many exposures will you need to take of the anterior teeth?

Answer:

Seven Question 5: Which posterior quadrant would be the best for you to begin with when using the paralleling technique?

Answer:

Maxillary right quadrant Question 6: Which posterior quadrant should you move to next (second) when using the paralleling technique?

Answer:

Mandibular left quadrant Question 7: The lingual cusp of the first premolar usually obscures the distal contact of the canine on the exposure.

Answer:

maxillary canine Question 8: Rinn beam alignment device that includes one ring and one arm that can be used for anterior, posterior, and bite-wing receptor positioning is called

Answer:

Rinn XCP Extension Cone Paralleling System Question 9: According to the basic rules of paralleling, the central ray should be directed to the receptor and the long axis of the tooth.

Answer:

perpendicular Question 10: Image magnification can be decreased when the is increased.

Answer:

target-receptor

Question 11: The American Dental Association (ADA) and the American Academy of Oral and Maxillofacial Radiology both recommend the use of a beam alignment device to reduce the amount of radiation the patient receives. (t or f)

Answer:

F Question 12: The paralleling technique creates dental images free from dimensional distortion.(t or f)

Answer:

T Question 13: target-receptor distance should be used in the paralleling technique to compensate for image magnification and loss of definition

Answer:

• inches

Question 14: Maxillary incisor

Answer:

images must include the crowns, roots, and surrounding bone of the right or left central and lateral incisors Question 15: Your patient has a shallow palate; you should modify your technique when there is a lack of parallelism .

Answer:

greater than 20 degrees

Question 16: Receptor position

Answer:

basic rule of paralleling states that the receptor must be parallel to the long axis of the tooth Question 17: To compensate for lack of parallelism, the vertical angulation can be increased by

• to 15 degrees more than the XCP instrument indicates. (t or f)

Answer:

T

Question 18: Image magnification occurs when the distance is increased.

Answer:

object-receptor Question 19: When using film, the dot should always be placed in relation to the bite-block

Answer:

in the slot Question 20: How many exposures of the posterior teeth will you need to take when using the paralleling technique?

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Eight Question 21: Your patient has a palatal torus, where should you place the receptor?

Answer:

Place the receptor on the far side of the torus.Question 22: When using the paralleling technique, you must be conscious of fixed vertical angulations. (t or f)

Answer:

F Question 23: When taking maxillary periapical images on a patient with a shallow palate, there is only one technique that can be used to compensate for lack of parallelism. (t or f)

Answer:

F Question 24: If you are using size 2 receptors, how many exposures will you need to take of the anterior teeth?

Answer:

six