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Restorative Art 121 > Bones Of The Face and Cranium (Test 1) > Flashcards

Bones Of The Face and Cranium (Test 1) Flashcards

1
Q

Geometric form of the normal skull

A

Oval or Egg from 3 views: Front, side, top. Width is 2/3 its length. Variations of the form are because of enlarged width or length.

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2
Q

Who has thicker bones?

A

Males

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3
Q

Who has larger bones?

A

Males

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4
Q

Who has more prominence of eminences of bone?

A

Males

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5
Q

Changes resulting from the loss of teeth

A

reduction in the vertical length of the faceAlterations of the angles of the jaw

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6
Q

Occipital Bone

A

1 bonecradles the brainlowest part of the back and base of the skull

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7
Q

Parietal Bones

A

2 bonesforms the superior portion of the sides and back of the cranium as well as the 2/3rds of the roofPARIETAL EMINENCE - widest part of the cranium is measured between the 2 parietal eminencesSAGGITAL SUTURE - where both parietal bones join at the highest part of the cranial bone

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8
Q

Temporal Bones

A

2 bonescreate the lower point of the sides and base of the craniumSQUAMA is the vertical surface of temporal bone

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9
Q

Zygomatic arch

A

part of the temporal bonewidest part of the face in between archesDivides the ears length into 2 equal halves. May be used to locate the correct position of a modeled ear.

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10
Q

Mandibular fossa

A

Part of the temporal bonesocket for the mandiblelies directly anterior to the ear passage

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11
Q

Mastoid Process

A

Posterior part of the temporal bonephysiognomically - under the lobe of the earserves as the attachment of the sternocleidomastoideous muscle; which is also the widest part of the neck

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12
Q

External auditory meatus

A

part of the temporal boneopening of the ear passageis the primary structure for accurate location of a modeled ear

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13
Q

Frontal Bone

A

1 boneforms the forehead and anterior portion of the roof of the skull

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14
Q

Forehead

A

part of the frontal bonefrom the eyesockets to the frontal eminences

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15
Q

Crown

A

part of the frontal bonefrom the frontal eminence to the parietal bone

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16
Q

Hairline

A

part of the frontal boneLocated on the crown of the head, above the frontal eminences

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17
Q

Frontal Eminences

A

2 upper parts of the forehead

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18
Q

Supercilliary arch

A

2 lower part of the forehead, lie above the medial ends of the eyebrows

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19
Q

Glabella

A

a smooth elevation between the supercilliary arches

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20
Q

Supraorbital margin

A

the upper rim of the 2 eyesockets

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21
Q

Line of the temple

A

Slightly raised curving ridge of the frontal bonemarks the end of the forehead and beginning of the temporal region

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22
Q

Zygomatic Bone

A

2 external facial bonesalso called malar or cheek boneslightly inferior and lateral to the outer corner of the eyethe greatest width of the anterior plan is measured between the centers of both zygomatic bones

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23
Q

Nasal bones

A

2 boneslies directly inferior to the glabellacreates a dome over the superior part of the nasal cavityits frontal and lateral surfaces widen as they descendThe tissue covering is very thin over the nasal bones, the outer form is a repeat of the boney surface

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24
Q

Nasal Bone from a profile view

A

The degree of slant (inclination) is important in a wax restoration.The nasal bones dip posteriorly below the glabella (root)The tissue covering is thin over the nasal bones - the outer form is a repeat of the bony contour.

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25
Q

Maxilla

A

2 bones creating the upper jaw and articulate at the medial line below the nasal cavity

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26
Q

Nasal Spine of the maxilla

A

the small sharp spur which projects at the base of the nasal cavitycreates the inferior boney anatomical limit of the nose (length)

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27
Q

Columna nasi

A

the most inferior part of the nose

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28
Q

Alveolar process

A

the thick spongy ridge which projects from the lower surface of the maxilla and contains the sockets from the teethLoss of teeth reduces the height of the upper jaw as the alveolar processes are absorbed

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29
Q

Mandible

A

1 bone creating the lower jawheld in place by muscles and tendons

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30
Q

Body of the Mandible

A

horizontal portion of the jawbonebilaterally, the form of the body is that of a horseshoe

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31
Q

Ramus of the Mandible

A

The vertical portion of the jawboneCORONOID PROCESS - lies anteriorly and has no influence on surface formCONDYLE - the posterior process which rests in the mandibular fossa in the temporal bone **aids in an ear restoration because it lies anterior to the ear passage

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32
Q

Angle of the Mandible

A

where the ramus joins the inferior border of the bodyfrom the frontal view - will greatly influence the geometric form of the head.

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33
Q

Mandibular Degrees of Obtuseness During a Lifetime

A

Birth - 175 degrees4 years - 140 degreesadults - 110 to 120 degreesold age - 140 degrees, with a loss of teeth and absorption of the alveolar processes

34
Q

Mental eminence

A

a triangular eminence of the chin. The base of this eminence is slightly concave but at each end is a prominent mental tubercle. These influence the inferior border of the chin and jaw line.

35
Q

Incisive fossa

A

a depression of the lower jaw below the 4 front incisor teethis responsible for the recession at the center of the lower lip to the top of the chin

36
Q

Prognathism

A

NOT THE SAME AS BUCK TEETHProjection of the jaw beyond the projection of the foreheada condition in which the jaw projects anteriorly beyond the superior part of the faceMay be a result of:-the alveolar process-the teeth-the jawbone

37
Q

Alveolar Prognathism

A

sockets of the teeth are inclined

38
Q

Dental (buck teeth) Prognathism

A

oblique insertion of the teeth; front teeth protrude

39
Q

Infranasal Prognathism

A

the base of the nasal cavity protrudes abnormally

40
Q

Mandibular Prognathism

A

the inferior jaw (mandible) protrudes

41
Q

Maxillary Prognathism

A

the superior jaw (maxilla) protrudes

42
Q

Oval or Egg from 3 views: Front, side, top. Width is 2/3 its length. Variations of the form are because of enlarged width or length.

A

Geometric form of the normal skull

43
Q

Males

A

Who has thicker bones?

44
Q

Males

A

Who has larger bones?

45
Q

Males

A

Who has more prominence of eminences of bone?

46
Q

reduction in the vertical length of the faceAlterations of the angles of the jaw

A

Changes resulting from the loss of teeth

47
Q

1 bonecradles the brainlowest part of the back and base of the skull

A

Occipital Bone

48
Q

2 bonesforms the superior portion of the sides and back of the cranium as well as the 2/3rds of the roofPARIETAL EMINENCE - widest part of the cranium is measured between the 2 parietal eminencesSAGGITAL SUTURE - where both parietal bones join at the highest part of the cranial bone

A

Parietal Bones

49
Q

2 bonescreate the lower point of the sides and base of the craniumSQUAMA is the vertical surface of temporal bone

A

Temporal Bones

50
Q

part of the temporal bonewidest part of the face in between archesDivides the ears length into 2 equal halves. May be used to locate the correct position of a modeled ear.

A

Zygomatic arch

51
Q

Part of the temporal bonesocket for the mandiblelies directly anterior to the ear passage

A

Mandibular fossa

52
Q

Posterior part of the temporal bonephysiognomically - under the lobe of the earserves as the attachment of the sternocleidomastoideous muscle; which is also the widest part of the neck

A

Mastoid Process

53
Q

part of the temporal boneopening of the ear passageis the primary structure for accurate location of a modeled ear

A

External auditory meatus

54
Q

1 boneforms the forehead and anterior portion of the roof of the skull

A

Frontal Bone

55
Q

part of the frontal bonefrom the eyesockets to the frontal eminences

A

Forehead

56
Q

part of the frontal bonefrom the frontal eminence to the parietal bone

A

Crown

57
Q

part of the frontal boneLocated on the crown of the head, above the frontal eminences

A

Hairline

58
Q

2 upper parts of the forehead

A

Frontal Eminences

59
Q

2 lower part of the forehead, lie above the medial ends of the eyebrows

A

Supercilliary arch

60
Q

a smooth elevation between the supercilliary arches

A

Glabella

61
Q

the upper rim of the 2 eyesockets

A

Supraorbital margin

62
Q

Slightly raised curving ridge of the frontal bonemarks the end of the forehead and beginning of the temporal region

A

Line of the temple

63
Q

2 external facial bonesalso called malar or cheek boneslightly inferior and lateral to the outer corner of the eyethe greatest width of the anterior plan is measured between the centers of both zygomatic bones

A

Zygomatic Bone

64
Q

2 boneslies directly inferior to the glabellacreates a dome over the superior part of the nasal cavityits frontal and lateral surfaces widen as they descendThe tissue covering is very thin over the nasal bones, the outer form is a repeat of the boney surface

A

Nasal bones

65
Q

The degree of slant (inclination) is important in a wax restoration.The nasal bones dip posteriorly below the glabella (root)The tissue covering is thin over the nasal bones - the outer form is a repeat of the bony contour.

A

Nasal Bone from a profile view

66
Q

2 bones creating the upper jaw and articulate at the medial line below the nasal cavity

A

Maxilla

67
Q

the small sharp spur which projects at the base of the nasal cavitycreates the inferior boney anatomical limit of the nose (length)

A

Nasal Spine of the maxilla

68
Q

the most inferior part of the nose

A

Columna nasi

69
Q

the thick spongy ridge which projects from the lower surface of the maxilla and contains the sockets from the teethLoss of teeth reduces the height of the upper jaw as the alveolar processes are absorbed

A

Alveolar process

70
Q

1 bone creating the lower jawheld in place by muscles and tendons

A

Mandible

71
Q

horizontal portion of the jawbonebilaterally, the form of the body is that of a horseshoe

A

Body of the Mandible

72
Q

The vertical portion of the jawboneCORONOID PROCESS - lies anteriorly and has no influence on surface formCONDYLE - the posterior process which rests in the mandibular fossa in the temporal bone **aids in an ear restoration because it lies anterior to the ear passage

A

Ramus of the Mandible

73
Q

where the ramus joins the inferior border of the bodyfrom the frontal view - will greatly influence the geometric form of the head.

A

Angle of the Mandible

74
Q

Birth - 175 degrees4 years - 140 degreesadults - 110 to 120 degreesold age - 140 degrees, with a loss of teeth and absorption of the alveolar processes

A

Mandibular Degrees of Obtuseness During a Lifetime

75
Q

a triangular eminence of the chin. The base of this eminence is slightly concave but at each end is a prominent mental tubercle. These influence the inferior border of the chin and jaw line.

A

Mental eminence

76
Q

a depression of the lower jaw below the 4 front incisor teethis responsible for the recession at the center of the lower lip to the top of the chin

A

Incisive fossa

77
Q

NOT THE SAME AS BUCK TEETHProjection of the jaw beyond the projection of the foreheada condition in which the jaw projects anteriorly beyond the superior part of the faceMay be a result of:-the alveolar process-the teeth-the jawbone

A

Prognathism

78
Q

sockets of the teeth are inclined

A

Alveolar Prognathism

79
Q

oblique insertion of the teeth; front teeth protrude

A

Dental (buck teeth) Prognathism

80
Q

the base of the nasal cavity protrudes abnormally

A

Infranasal Prognathism

81
Q

the inferior jaw (mandible) protrudes

A

Mandibular Prognathism

82
Q

the superior jaw (maxilla) protrudes

A

Maxillary Prognathism

Restorative Art 121 (5 decks)

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