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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

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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
Maxilla
2 bones creating the upper jaw and articulate at the medial line below the nasal cavity
26
Nasal Spine of the maxilla
the small sharp spur which projects at the base of the nasal cavitycreates the inferior boney anatomical limit of the nose (length)
27
Columna nasi
the most inferior part of the nose
28
Alveolar process
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
29
Mandible
1 bone creating the lower jawheld in place by muscles and tendons
30
Body of the Mandible
horizontal portion of the jawbonebilaterally, the form of the body is that of a horseshoe
31
Ramus of the Mandible
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
32
Angle of the Mandible
where the ramus joins the inferior border of the bodyfrom the frontal view - will greatly influence the geometric form of the head.
33
Mandibular Degrees of Obtuseness During a Lifetime
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
Mental eminence
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
Incisive fossa
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
Prognathism
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
Alveolar Prognathism
sockets of the teeth are inclined
38
Dental (buck teeth) Prognathism
oblique insertion of the teeth; front teeth protrude
39
Infranasal Prognathism
the base of the nasal cavity protrudes abnormally
40
Mandibular Prognathism
the inferior jaw (mandible) protrudes
41
Maxillary Prognathism
the superior jaw (maxilla) protrudes
42
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.
Geometric form of the normal skull
43
Males
Who has thicker bones?
44
Males
Who has larger bones?
45
Males
Who has more prominence of eminences of bone?
46
reduction in the vertical length of the faceAlterations of the angles of the jaw
Changes resulting from the loss of teeth
47
1 bonecradles the brainlowest part of the back and base of the skull
Occipital Bone
48
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
Parietal Bones
49
2 bonescreate the lower point of the sides and base of the craniumSQUAMA is the vertical surface of temporal bone
Temporal Bones
50
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.
Zygomatic arch
51
Part of the temporal bonesocket for the mandiblelies directly anterior to the ear passage
Mandibular fossa
52
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
Mastoid Process
53
part of the temporal boneopening of the ear passageis the primary structure for accurate location of a modeled ear
External auditory meatus
54
1 boneforms the forehead and anterior portion of the roof of the skull
Frontal Bone
55
part of the frontal bonefrom the eyesockets to the frontal eminences
Forehead
56
part of the frontal bonefrom the frontal eminence to the parietal bone
Crown
57
part of the frontal boneLocated on the crown of the head, above the frontal eminences
Hairline
58
2 upper parts of the forehead
Frontal Eminences
59
2 lower part of the forehead, lie above the medial ends of the eyebrows
Supercilliary arch
60
a smooth elevation between the supercilliary arches
Glabella
61
the upper rim of the 2 eyesockets
Supraorbital margin
62
Slightly raised curving ridge of the frontal bonemarks the end of the forehead and beginning of the temporal region
Line of the temple
63
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
Zygomatic Bone
64
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
Nasal bones
65
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.
Nasal Bone from a profile view
66
2 bones creating the upper jaw and articulate at the medial line below the nasal cavity
Maxilla
67
the small sharp spur which projects at the base of the nasal cavitycreates the inferior boney anatomical limit of the nose (length)
Nasal Spine of the maxilla
68
the most inferior part of the nose
Columna nasi
69
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
Alveolar process
70
1 bone creating the lower jawheld in place by muscles and tendons
Mandible
71
horizontal portion of the jawbonebilaterally, the form of the body is that of a horseshoe
Body of the Mandible
72
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
Ramus of the Mandible
73
where the ramus joins the inferior border of the bodyfrom the frontal view - will greatly influence the geometric form of the head.
Angle of the Mandible
74
Birth - 175 degrees4 years - 140 degreesadults - 110 to 120 degreesold age - 140 degrees, with a loss of teeth and absorption of the alveolar processes
Mandibular Degrees of Obtuseness During a Lifetime
75
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.
Mental eminence
76
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
Incisive fossa
77
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
Prognathism
78
sockets of the teeth are inclined
Alveolar Prognathism
79
oblique insertion of the teeth; front teeth protrude
Dental (buck teeth) Prognathism
80
the base of the nasal cavity protrudes abnormally
Infranasal Prognathism
81
the inferior jaw (mandible) protrudes
Mandibular Prognathism
82
the superior jaw (maxilla) protrudes
Maxillary Prognathism

Restorative Art 121 (5 decks)

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