Quizlet M7 Radiography (Ch. 15, 20 & 26)

The consumer-patient radiation health and safety act

All 3

The consumer-patient radiation health and safety act is a ____ law

Federal

Generally, there are___ elements to informed consent

Four

The standard of care can be defined as the quality of care that is provided by dental practitioners in ____ locality under______ conditions

a similar, the same or similar

Which of the following statement is true of the stature of limitations

All 3

Which of the following statements is true of dental images and the patients dental record

The dental record must include documentation of the number and type of dental images exposed

It is appropriate for any dental professional to discuss a patients care with

Another dentist involved in the patients care, and a physician with whom care is shared.

Your patient wants her original set of radiographs. She claims they are hers because she paid for them. Which of the following would be the best reply.

Legally they are the property of the dentist even though you or the insurance company pays for them.

When a patient refuses dentist has deemed are necessary for treatment planning, the dentist should refuse to treat the patient; however, the patient could sign a release form that would allow the dentist to continue with the patients treatment.

The first part of the statement is true, the second part of the treatment is false.

The Consumer-Patient Radiation Health and Safety Act,

1. outlines requirements for the safe use of dental x-ray equipment.

2. establishes guidelines for the proper maintenance of x-ray equipment.

3. requires persons who take dental images to be properly trained and certified.

1, 2 and 3

The process of informing the patient about the particulars of exposing dental images is termed what?

disclosure

If you take dental images on your patient before getting his informed consent, your patient can legally claim....

malpractice or negligence

Which of the following constitutes a person who can provide legal informed consent?

A. An adult (over the age of 18) who is of sound mind

B. An individual who under duress has consented to the treatment

C. An individual under the influence of drugs or alcohol

D. An individual who received an incomplete description of the proposed treatment

A. An adult (over the age of 18) who is of sound mind

The trend in dental negligence or malpractice actions has historically been to sue the supervising dentist alone. However, cases exist in which the dentist and the dental auxiliary have both been sued for the actions of the dental auxiliary.

Both statements are true

Which of the following statements is true of dental images and the patient's dental record?

A. It is advised to keep patient dental images in a file separate from patient charts.

B. The dental record must include documentation of the number and type of dental images exposed.

C. Dental images are an optional rather than integral part of the dental record.

D. Dental images may be discarded when outdated.

B. The dental record must include documentation of the number and type of dental images exposed.

You have entered a wrong entry in the dental record. Which of the following should you do?

A. Erase the entry and write in the correct entry.

B. Cover the original entry with white-out and write the new entry in over the white-out.

C. Draw a single line through the incorrect entry, initial it, write in the correct entry.

D. Block out the original entry and write the correct entry next to the original entry.

C. Draw a single line through the incorrect entry, initial it, write in the correct entry.

Your former patient has moved and would like his records including the original radiographs sent to his new dentist. Which of the following should you do?

A. Copy the original films, send the original films, and keep the duplicate set.

B. Keep the original films and send the new dentist a duplicate set.

C. Make a duplicate copy to send to the new dentist unless the patient signs a release to send the originals.

D. Forward the original radiographs to the new dentist.

B. Keep the original films and send the new dentist a duplicate set.

When the bisecting technique is used, foreshortening will occur if the central ray is directed perpendicular to the

plane of the receptor

Scatter radiation will...

increase film fog.

The Consumer-Patient Radiation Health and Safety Act,

1. outlines requirements for the safe use of dental x-ray equipment.

2. establishes guidelines for the proper maintenance of x-ray equipment.

3. requires persons who take dental images to be properly trained and certified.

1, 2 and 3

When the bisecting technique is used, foreshortening will occur if the central ray is directed perpendicular to the

plane of the receptor

1. The rule of isometry states that two triangles are equal if they have ______ equal

angle(s) and share a common side.

a. one

b. two

c. three

d. four

B

2. When the bisecting technique is used, the receptor must be placed along the ________

surface of the tooth.

a. buccal

b. lingual

c. mesial

d. distal

B

3. When the bisecting technique is used, which of the following angles is bisected?

a. The angle formed by the receptor and the long axis of the tooth

b. The angle formed by the central ray and the tooth

c. The angle formed by the central ray and the receptor

d. The angle that is perpendicular to the receptor

A

5. (1) When using the bisecting technique, the receptor holder or the patient's finger may

be used to stabilize the receptor. (2) A beam alignment device is used to stabilize the receptor and

to align the position-indicating device (PID).

a. Both statements are true.

b. Both statements are false.

c. The first statement is true; the second statement is false.

d. The first statement is false; the second statement is true.

ANS: D

11. Which size receptor is traditionally used with the bisecting technique?

a. #1 receptor for anterior teeth, #1 receptor for posterior teeth

b. #1 receptor for anterior teeth, #2 receptor for posterior teeth

c. #2 receptor for anterior teeth, #1 receptor for posterior teeth

d. #2 receptor for anterior teeth and for posterior teeth

D

12. Which of the following techniques use the same principles of horizontal angulation?

1. Paralleling

2. Bisecting

3. Bite-wing

a. 1, 2, 3

b. 1, 2

c. 2, 3

d. 1, 3

A

13. With the bite-wing technique, the vertical angulation is predetermined; the central ray

is directed at ____ degrees to the occlusal plane.

a. +10

b. -10

c. +20

d. -20

A

15. Foreshortened images refer to images of the teeth that appear _________.

Foreshortening of images results from ___________ vertical angulation.

a. shortened; insufficient

b. shortened; excessive

c. too long; insufficient

d. too long; excessive

ANS: B

18. Receptor should be placed approximately ____ inch beyond the incisal or occlusal

surfaces when using the bisecting technique.

a. 1/16

b. 1/8

c. 1/4

d. ½

ANS: B

20. The recommended anterior periapical exposure sequence for the bisecting technique

starts with the

a. maxillary right canine.

b. maxillary left canine.

c. mandibular right canine.

d. mandibular left canine.

ANS: A

21. The recommended posterior periapical exposure sequence for the bisecting technique

is to begin with the

a. maxillary right quadrant.

b. maxillary left quadrant.

c. mandibular right quadrant.

d. mandibular left quadrant.

ANS: A

22. According to the recommended posterior periapical exposure sequence for the

bisecting technique, the second posterior quadrant exposed should be the

a. maxillary right quadrant.

b. maxillary left quadrant.

c. mandibular right quadrant.

d. mandibular left quadrant.

ANS: C

23. According to the text, when exposing a complete mouth image series (CMS) using the

bisecting technique, there are ____ recommended size 2 periapical receptor placements.

a. 7

b. 12

c. 14

d. 19

ANS: C

24. According to the text, the advantages of the bisecting technique are greater than the

disadvantages. Therefore, the bisecting technique should be used instead of the paralleling

technique when taking periapical images.

a. Both statements are true.

b. Both statements are false.

c. The first statement is true; the second statement is false.

d. The first statement is false, the second statement is true.

ANS: B

25. The primary disadvantage of the bisecting technique when contrasted with the

paralleling technique is

a. longer exposure times.

b. dimensional distortion.

c. requirement of a receptor holder.

d. greater magnification.

ANS: B

26. When adjusting the horizontal angulation, the PID is moved ___________. When

adjusting the vertical angulation, the PID is moved ______________.

a. side-to-side; side-to-side

b. side-to-side; up-and-down

c. up-and-down; side-to-side

d. up-and-down; up-and-down

B

27. For the maxillary premolar exposure, the mesial edge of the receptor should be aligned

with the midline of the maxillary

a. lateral incisor.

b. canine.

c. first bicuspid.

d. second bicuspid.

ANS: B

28. For the mandibular molar exposure, the mesial edge of the receptor should be aligned

with the midline of the

a. canine.

b. first premolar.

c. second premolar.

d. first molar.

ANS: C

29. With the bisecting technique, the recommended vertical angulation range for tooth

number 6 is _________ degrees.

a. +20 to +30

b. +30 to +40

c. +40 to +50

d. +45 to +55

D

30. With the bisecting technique, the recommended vertical angulation range for tooth

number 30 is _________ degrees.

a. -5 to 0

b. + 20 to +30

c. -20 to -30

d. -10 to -15

A

31. The contacts on your dental image are overlapped, which of the following would you

correct when retaking the image?

a. Horizontal angulation

b. Vertical angulation

c. Head position

d. Receptor placement

ANS: A

32. The teeth on your dental images appear shorter than your patient's teeth, which of the

following would you correct when retaking the dental image?

a. Increase horizontal angulation

b. Increase vertical angulation

c. Decrease vertical angulation

d. Decrease horizontal angulation

ANS: C

33. Your premolar image is undiagnostic, the mesial half of the dental image is

radiopaque. You are missing the canine and first premolar, and the distal edge of the radiopaque

area is curved. Which of the following will you adjust to correct this error for the retake?

a. Receptor position

b. Vertical angulation

c. Horizontal angulation

d. Receptor exposure

ANS: D

34. You are using the Rinn Snap-A-Ray to take a dental image of tooth number 13. What vertical angulation should you set the PID at to get the proper image?

a. -10 to -15 degrees

b. + 20 to +30 degrees

c. +30 to +40 degrees

d. There is no need to set the vertical angulation.

C

35. You are using the Rinn Stabe Bite-bloc to take a dental image of teeth numbers 23-26. What vertical angulation should you set the PID at to get the proper image?

a. -20 to -30 degrees

b. -15 to -25 degrees

c. +40 to +50 degrees

d. There is no need to set the vertical angulation.

B

36. You are using the Rinn BAI System to take a dental image of tooth number 1. What vertical angulation should you set the PID at to get the proper image?

a. -5 to 0 degrees

b. +20 to +30 degrees

c. +30 to +40 degrees

d. There is no need to set the vertical angulation.

D

An occlusal receptor ________ be used for some extraoral images. When used extraorally, it covers a ________ area than a screen film.

a. may; larger

b. may not; smaller

c. may; smaller

d. may not; larger

may; smaller

Scatter radiation

a. increases image contrast.

b. increases film fog.

c. decreases density.

d. decreases film fog.

b. increases film fog

For the _____________ projection, the patient's face is against the receptor with both the forehead and chin touching the receptor.

a. lateral cephalometric

b. Waters

c. posteroanterior

d. reverse Towne

c. posterioranterior

A panoramic radiograph can always be substituted for a complete series of dental images. A panoramic radiograph does not clearly reveal changes in teeth, such as tooth decay, or the details of the supporting bone.

The first statement is false; the second statement is true.

An extraoral image is placed __________ the mouth during x-ray exposure. Extraoral imaging is used to image _________ areas of the skull or jaws.

outside; large

Extraoral images may be used in conjunction with intraoral images. Extraoral images are not as defined or sharp as intraoral images.

Both statements are true.

Which of the following would you evaluate using an extraoral image?

Growth and development

Your new patient has asked if you could use the images from his previous dentist. You should tell your patient that

you can accept the image if they were taken recently and are of acceptable quality.

Your former patient has moved and would like his records including the original radiographs (film type) sent to his new dentist. Which of the following should you do?

Keep the original films and send the new dentist a duplicate set.

Original dental images are the property of

the dentist.

If your patient refuses images, you will not be able to provide dental care on your patient, because providing treatment without necessary images is considered negligence.

Both statements and reason are true.

Dental x-rays can be discarded after 5 years.

False

5. (1) When using the bisecting technique, the receptor holder or the patient's finger may

be used to stabilize the receptor. (2) A beam alignment device is used to stabilize the receptor and to align the position-indicating device (PID).

a. Both statements are true.

b. Both statements are false.

c. The first statement is true; the second statement is false.

d. The first statement is false; the second statement is true.

d. The first statement is false; the second statement is true.

15. Foreshortened images refer to images of the teeth that appear _________.

Foreshortening of images results from ___________ vertical angulation.

a. shortened; insufficient

b. shortened; excessive

c. too long; insufficient

d. too long; excessive

ANS: B

18. Receptor should be placed approximately ____ inch beyond the incisal or occlusal

surfaces when using the bisecting technique.

a. 1/16

b. 1/8

c. 1/4

d. ½

ANS: B

20. The recommended anterior periapical exposure sequence for the bisecting technique

starts with the

a. maxillary right canine.

b. maxillary left canine.

c. mandibular right canine.

d. mandibular left canine.

ANS: A

21. The recommended posterior periapical exposure sequence for the bisecting technique

is to begin with the

a. maxillary right quadrant.

b. maxillary left quadrant.

c. mandibular right quadrant.

d. mandibular left quadrant.

ANS: A

22. According to the recommended posterior periapical exposure sequence for the

bisecting technique, the second posterior quadrant exposed should be the

a. maxillary right quadrant.

b. maxillary left quadrant.

c. mandibular right quadrant.

d. mandibular left quadrant.

ANS: C

23. According to the text, when exposing a complete mouth image series (CMS) using the

bisecting technique, there are ____ recommended size 2 periapical receptor placements.

a. 7

b. 12

c. 14

d. 19

ANS: C

24. According to the text, the advantages of the bisecting technique are greater than the

disadvantages. Therefore, the bisecting technique should be used instead of the paralleling

technique when taking periapical images.

a. Both statements are true.

b. Both statements are false.

c. The first statement is true; the second statement is false.

d. The first statement is false, the second statement is true.

ANS: B

25. The primary disadvantage of the bisecting technique when contrasted with the

paralleling technique is

a. longer exposure times.

b. dimensional distortion.

c. requirement of a receptor holder.

d. greater magnification.

ANS: B

27. For the maxillary premolar exposure, the mesial edge of the receptor should be aligned

with the midline of the maxillary

a. lateral incisor.

b. canine.

c. first bicuspid.

d. second bicuspid.

ANS: B

28. For the mandibular molar exposure, the mesial edge of the receptor should be aligned

with the midline of the

a. canine.

b. first premolar.

c. second premolar.

d. first molar.

ANS: C

29. With the bisecting technique, the recommended vertical angulation range for tooth

number 6 is _________ degrees.

a. +20 to +30

b. +30 to +40

c. +40 to +50

d. +45 to +55

ANS: D

30. With the bisecting technique, the recommended vertical angulation range for tooth

number 30 is _________ degrees.

a. -5 to 0

b. + 20 to +30

c. -20 to -30

d. -10 to -15

ANS: A

31. The contacts on your dental image are overlapped, which of the following would you

correct when retaking the image?

a. Horizontal angulation

b. Vertical angulation

c. Head position

d. Receptor placement

ANS: A

32. The teeth on your dental images appear shorter than your patient's teeth, which of the

following would you correct when retaking the dental image?

a. Increase horizontal angulation

b. Increase vertical angulation

c. Decrease vertical angulation

d. Decrease horizontal angulation

ANS: C

33. Your premolar image is undiagnostic, the mesial half of the dental image is

radiopaque. You are missing the canine and first premolar, and the distal edge of the radiopaque

area is curved. Which of the following will you adjust to correct this error for the retake?

a. Receptor position

b. Vertical angulation

c. Horizontal angulation

d. Receptor exposure

ANS: D

Scatter radiation

a. increases image contrast.

b. increases film fog.

c. decreases density.

d. decreases film fog.

b. increases film fog

What size receptor is traditionally used with the bisecting technique

#2 for anterior and posterior

with the bitewing technique, the vertical angulation is predetermined; the central ray is directed at ______ degrees to the occlusal plan

+10

foreshortened images refer to images of the teeth that appear________. Foreshortening of images results from ______ vertical angulation

shortened, excessive

the recommended posterior periapical exposure sequence for the bisecting technique is to begin with the

maxillary right quadrant

According to the text, when exposing a complete mouth image series using the bisecting technique, there are _____ recommended size 2 periapical receptor placement

14

the primary disadvantages of the bisecting technique when contrasted with the paralleling technique is

dimensional distortion

for the maxillary premolar exposure, the manila edge of the receptor should be aligned with the midline of the maxillary

canine

for the mandibular molar exposure, the Mesial edge of the receptor should be aligned with the midline of the

second premolar

with the bisecting technique, the recommended vertical angulation range for tooth #6 is ______ degrees

+45 to +55

the the bisecting technique, the recommended vertical angulation range for tooth #30 is _____ degrees

-5 to 0

the contacts on your dental image are overlapped, which of the following would you correct when retaking

horizontal angulation

the teeth on your dental image appear shorter than the patients teeth, which of the following would you correct when retaking the dental image

decrease vertical angulation

true or false? A thyroid collar is used for Waters, submentovortex and reverse towns projections. A thyroid collar is not used for lateral jaw, lateral cephalometric and posterior anterior projections.

first statement is false, second is true

true or false? Temporomandibular joint tomography is used to evaluate the condyle, articular eminence and glenoid fossa. Other landmarks are blurred in TMJ tomography

both statements are true

which of the following is the most commonly used extra oral film size

5 x 7

an occlusal receptor _______ be used for some extraoral images. When used extra orally, it covers a ______ area than a screen film

may, smaller

scatter radiation...

increases film fog

for the _____ projection, the patients face is against the receptor with both the forehead and chin touching the receptor

posterioranterior

the left side of the patients head is positioned adjacent to the cassette for the _____ projection

lateral cephalometric

your patient think she has fractured her zygomatic arch, which of the following projections would you take

submyentovortex

in order to take this projection, you need to have your patient face the receptor, touch his forehead to the receptor, tuck his chin down to the chest and open his mouth wide as he can. What projection is this

reverse towne

the consumer-patient radiation health and safety act...

- outlines requirements for the safe use of dental x-ray equipment

- establishes proper maintenance of the x-ray equipment

- requires persons who take dental images to be properly trained and certified

true or false? a trend in dental malpractice or negligence actions has historically been to sure the supervising dentist alone. However, cases exist in which the dentist and the dental auxiliary have both sued for the actions of the dental auxiliary

both statements are true

the standard of care can be defined as the quality of care that is provided by the dental practitioners in ______ locality under _______ conditions

similar, same or similar