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DANB RHS Exam > Chapter 23: Occlusal and Localization Techniques > Flashcards

Chapter 23: Occlusal and Localization Techniques Flashcards

Principles, Equipment and Guidelines of the Occlusal and Localization Techniques

1
Q

Define the term: fracture

A

the breaking of a part (appears as a thin radiolucent line)

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2
Q

Define the term: intraoral

A

inside the mouth

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3
Q

Define the term: intraoral imaging examination

A

a dental imaging inspection of teeth and intraoral adjacent structures

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4
Q

Define the term: occlusal examination

A

a type of intraoral examination used to inspect large areas of the maxilla or mandible in one image

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5
Q

What angulation is used when trying to localize vertically aligned objects?

A

horizontal angulation

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6
Q

When using the buccal object rule, if the object being localized has moved in the same direction as the shift of the position-indicating device, how is that object positioned?

A

lingually

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7
Q

Define the term: vertical

A

an up-and-down plane

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8
Q

Define the term: position-indicating device (PID) / cone

A
  • an open-ended, lead-lined cylinder extending from the opening of the tubehead

*aims and shapes the x-ray beam

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9
Q

Define the term: periapical

A

around the apex of a tooth

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10
Q

Define the term: angulation

A

the alignment of the central x-ray beam in the horizontal and vertical planes

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11
Q

How is the patient’s head and midsaggital plane positioned for maxillary occlusal exposures?

A

with the maxillary arch parallel to the floor and the midsagittal plane plane perpendicular to the floor

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12
Q

Define the term: maxillary topographic occlusal projection

A

a type of occlusal projection used to examine the palate and anterior teeth of the maxilla

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13
Q

Define the term: vertical angulation

A

the positioning of the position-indicating device in a vertical plane

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14
Q

Define the term: intraoral receptor

A

an image receptor is placed inside the mouth during x-ray exposure to examine teeth and supporting structures

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15
Q

List the three types of mandibular occlusal projections.

A
  • mandibular topographic occlusal projection
  • mandibular cross-sectional occlusal projection
  • mandibular pediatric occlusal projection
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16
Q

Define the term: occlusal receptor

A

an image receptor is placed intraorally so that the patient occludes on the receptor in order to examine large areas of the maxilla or mandible

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17
Q

Define the term: maxillary teeth

A

teeth located in the maxilla or upper arch

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18
Q

Define the term: occlusal technique

A

the method used to expose a receptor in occlusal examination

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19
Q

Which localization technique is commonly used to locate objects in the mandible?

A

the right angle technique

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20
Q

Define the term: image receptor

A

a recording medium (ex: PSP plate, digital sensor)

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21
Q

What is the correct vertical angulation for a maxillary lateral occlusal projection?

A

+60 degrees

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22
Q

Define the term: central ray (CR)

A

the central portion of the primary beam of x-radiation

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23
Q

Define the term: anterior

A

towards the front

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24
Q

Define the term: mandibular topographic occlusal projection

A

a type of occlusal projection used to examine the anterior teeth of the mandible

25
Q

Define the term: mandibular cross-sectional occlusal projection

A

a type of occlusal projection used to examine the buccal and lingual aspects of the mandible and locate foreign bodies in the floor of the mouth

26
Q

Define the term: maxilla

A

the upper jaw

27
Q

Define the term: mandibular teeth

A

teeth located in the mandible or lower arch

28
Q

Define the term: anterior teeth

A

central incisors, lateral incisors, and canines/cuspids

29
Q

Define the term: buccal object rule

A
  • a method used to illustrate the orientation of structures portrayed in two images exposed at different angulations
  • used to determine the buccal-lingual relationship of an object
30
Q

Define the term: mandible

A

the lower jaw

31
Q

What is the correct vertical angulation for a mandibular cross-sectional occlusal projection?

A

90 degrees

32
Q

Define the term: posterior

A

towards the back

33
Q

Define the term: localization techniques

A

method used to locate the position of a tooth or object in the jaws

34
Q

Define the term: endodontics

A

the branch of dentistry that deals with the diagnosis and treatment of diseases of the dental pulp

35
Q

Define the term: maxillary pediatric occlusal projection

A

a type of occlusal projection used to examine the anterior teeth of the maxilla used in children 5 years or younger

36
Q

What is the correct vertical angulation for a maxillary pediatric occlusal projection?

A

+60 degrees

37
Q

What is the correct vertical angulation for a mandibular topographic occlusal projection?

A

-55 degrees

38
Q

Define the term: superior

A

describes an area that is higher on a vertical axis

39
Q

When using the buccal object rule, if the object being localized has moved in the opposite direction as the shift of the position-indicating device, how is that object positioned?

A

buccaly

40
Q

Define the term: exposure

A

a measure of ionization produced in air by x-radiation or gamma radiation

41
Q

Define the term: occlusal

A

the chewing surfaces of posterior teeth

42
Q

Define the term: maxillary lateral occlusal projection

A

a type of occlusal projection used to examine the palatal roots of molar teeth and locate foreign bodies or lesions in the posterior maxilla

43
Q

What is the “SLOB” rule?

A

Same = Lingual / Opposite = Buccal

44
Q

Define the term: endodontic

A

found within a tooth

45
Q

Define the term: mandibular pediatric occlusal projection

A

a type of occlusal projection used to examine the anterior teeth of the mandible in children aged 5 years or younger

46
Q

Define the term: endodontic patient

A

a patient who has undergone endodontic therapy

47
Q

Define the term: periapical examination

A

a type of intraoral imaging examination used to view the entire tooth (crown and root) and supporting bone

48
Q

When using the occlusal technique, how is the image receptor stabilized during exposure?

A

by the patient gently biting on the surface of the image receptor

49
Q

Define the term: gutta percha

A

rubberlike material used in endodontic therapy to fill the pulp canals and pulp chamber (appears radiopaque)

50
Q

List the two types of localization techniques.

A
  • buccal object rule
  • right angle technique
51
Q

What angulation is used when trying to localize horizontally aligned objects?

A

vertical angulation

52
Q

What is the correct vertical angulation for a mandibular pediatric occlusal projection?

A

-55 degrees

53
Q

Define the term: x-ray beam angulation

A

one of the influencing factors for image distortion that refers to the direction of the x-ray beam

54
Q

Define the term: intraoral image

A
  • an image the results when an image receptor is placed inside the mouth and exposed to x-rays
  • used to examine teeth
55
Q

List the three types of maxillary occlusal projections.

A
  • maxillary topographic occlusal projection
  • maxillary lateral occlusal projection
  • maxillary pediatric occlusal projection
56
Q

Define the term: inferior

A

describes an area that is lower on a vertical axis

57
Q

What is the correct vertical angulation for a maxillary topographic occlusal projection?

A

+ 65 degrees

58
Q

Define the term: posterior teeth

A

first and second premolars/bicuspids, and first, second and third molars

59
Q

When using the occlusal technique, how is the image receptor positioned?

A

the image receptor is placed with the tube side facing the arch that is being exposed, with the receptor between the occlusal surfaces of the maxillary and mandibular teeth

DANB RHS Exam (26 decks)

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