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ORAL PATH > LESSON 3 (ENAMEL, DENTIN, CEMENTUM DEFECTS) > Flashcards

LESSON 3 (ENAMEL, DENTIN, CEMENTUM DEFECTS) Flashcards

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1
Q

ENAMEL DEFECTS

A

ENAMEL HYPOPLASIA
ENAMEL HYPOCALCIFICATION
AMELOGENESIS IMPERFECTA

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2
Q

an incomplete or defective formation of the organic enamel matrix of teeth

A

ENAMEL HYPOPLASIA

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3
Q

defect in quantity and shape of enamel

A

ENAMEL HYPOPLASIA

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4
Q

True or false

In ENAMEL HYPOPLASIA it has normal hardness

A

True

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5
Q

defect in quality and color of enamel

A

ENAMEL HYPOCALCIFICATION

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6
Q

normal amounts of enamel are produced but are
hypomineralized

A

ENAMEL HYPOCALCIFICATION

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7
Q

True or false

In ENAMEL HYPOCALCIFICATION its enamel is softer than normal

A

True

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8
Q

rickets

A

Nutritional Deficiency

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9
Q

→ exanthematous diseases (measles,
chickenpox, scarlet fever)
→ systemic diseases

A

Nutritional Deficiency

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10
Q

ingestion of fluoride-containing drinking water during the time of tooth formation may result in _____

A

mottled enamel

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11
Q

Mottled Enamel or Fluorosis

→ mild to moderate fluorosis

o ranges clinically from white enamel
spots to “mottled” brown and white
discoloration

True or False

A

True

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12
Q

appears as pitted, irregular, and discolored enamel

A

severe fluorosis

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13
Q

In Congenital Syphilis it
involves the maxillary and mandibular permanent _____ and the _____

A

incisors, first molars

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14
Q

What etiological factor?

anterior teeth
o Hutchinson’s teeth

A

Congenital Syphilis

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15
Q

molars

o mulberry molars (Moon’s molars, Forunier’s molars)

A

Congenital Syphilis

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16
Q

hypoplastic teeth

A

Congenital Syphilis

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17
Q

decreased level of calcium in blood

A

Hypocalcemia

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18
Q

vitamin D deficiency and parathyroid deficiency

A

Hypocalcemia

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19
Q

usually involves a single tooth

A

Local Infection (Abscess) or Trauma

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20
Q

most commonly one of the permanent
maxillary incisors or a maxillary or
mandibular premolar

A

Local Infection (Abscess) or Trauma

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21
Q

In Local Infection (Abscess) or Trauma, what color is the mild?

A

brownish discoloration

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22
Q

severe
o pitting and irregularity of the tooth crown

A

Local Infection (Abscess) or Trauma

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23
Q

Turner’s teeth, Turner’s hypoplasia

A

Local Infection (Abscess) or Trauma

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24
Q

refers to a group of hereditary disorders of enamel formation in both dentitions

A

AMELOGENESIS IMPERFECTA

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25
hereditary brown opalescent teeth
AMELOGENESIS IMPERFECTA
26
teeth erupt with insufficient amount of enamel from pits and grooves to complete absence (aplasia)
HYPOPLASTIC
27
abnormal contour and absent interproximal contact points evident
HYPOPLASTIC
28
the quantity of enamel is normal but it is soft and friable
HYPOCALCIFIED
29
fractures and wears readily
HYPOCALCIFIED
30
color ranges from white opaque to yellow to brown teeth darkens with age
HYPOMATURATION
31
radiographically, enamel appears reduced in bulk, often showing a thin layer over occlusal and interproximal surfaces
HYPOMATURATION
32
dentin and pulp chamber appears normal and are not caries prone
HYPOMATURATION
33
treatment of HYPOMATURATION
no treatment necessary other than cosmetic restoration
34
an autosomal dominant condition affecting both deciduous and permanent teeth
DENTINOGENESIS IMPERFECTA
35
affected teeth are gray to yellowish-brown and have broad crowns with constriction of the cervical area resulting in a ‘tulip’ shape
DENTINOGENESIS IMPERFECTA
36
translucent hue
DENTINOGENESIS IMPERFECTA
37
partial or complete obliteration of the pulp in Type I or II
DENTINOGENESIS IMPERFECTA
38
RADIOGRAPHIC FEATURES → the teeth appear solid, lacking pulp chambers and root canals
DENTINOGENESIS IMPERFECTA
39
RADIOGRAPHIC FEATURES enamel may be lost early through fracturing away because of abnormal DEJ
DENTINOGENESIS IMPERFECTA
40
always occurs in families with osteogenesis imperfecta
TYPE I DENTINOGENESIS IMPERFECTA
41
primary teeth more severely affected
TYPE I DENTINOGENESIS IMPERFECTA
42
→ hereditary opalescent dentin → never occurs in association with osteogenesis imperfecta
TYPE II DENTINOGENESIS IMPERFECTA
43
→ this is inherited as an autosomal dominant trait → dentitions are equally affected
TYPE II DENTINOGENESIS IMPERFECTA
44
there is continued formation of dentin
TYPE II DENTINOGENESIS IMPERFECTA
45
Brandywine type
TYPE III DENTINOGENESIS IMPERFECTA
46
same clinical appearance with Type I and II
TYPE III DENTINOGENESIS IMPERFECTA
47
→ multiple pulp exposures in deciduous teeth → both dentitions are affected
TYPE III DENTINOGENESIS IMPERFECTA
48
“shell teeth”
TYPE III DENTINOGENESIS IMPERFECTA
49
→ enamel of tooth appears normal, but dentin is extremely thin
TYPE III DENTINOGENESIS IMPERFECTA
50
pulp chambers are enormous due to effective dentin formation
TYPE III DENTINOGENESIS IMPERFECTA
51
extremely short roots
TYPE III DENTINOGENESIS IMPERFECTA
52
HISTOLOGIC FEATURES → defective dentin, normal enamel → dentin is composed of irregular dentinal tubules o larger in diameter o less numerous than normal
TYPE III DENTINOGENESIS IMPERFECTA
53
→ there may be complete absence of dentinal tubules → there is absence of scalloping in the DEJ
TYPE III DENTINOGENESIS IMPERFECTA
54
CHEMICAL AND PHYSICAL FEATURES → water content is greatly increased → inorganic content is less than normal dentin
TYPE III DENTINOGENESIS IMPERFECTA
55
ROOTLESS TEETH
DENTIN DYSPLASIA
56
CLINICAL FEATURES → increased mobility and may exfoliate prematurely
RADICULAR DENTIN DYSPLASIA (TYPE I)
57
RADIOGRAPHIC FEATURES → short, blunt, bulged, conical or absent roots → distinct W-shaped roots of a mandibular molars
RADICULAR DENTIN DYSPLASIA (TYPE I)
58
→ periapical radiolucencies present in the absence of caries representing → abscess, granulomas, or cysts
RADICULAR DENTIN DYSPLASIA (TYPE I)
59
Primary Teeth total obliteration of pulp chambers
RADICULAR DENTIN DYSPLASIA (TYPE I)
60
Permanent Teeth pulpal obliteration, thin crescent-shaped remnants of pulp chambers
RADICULAR DENTIN DYSPLASIA (TYPE I)
61
HISTOPATHOLOGY → enamel and mantle layer of dentin are normal
RADICULAR DENTIN DYSPLASIA (TYPE I)
62
abnormal dentin: o less dense, a lot of regular distribution and orientation of tubular dentin aside from tubular dentin, there’s also osteodentin
RADICULAR DENTIN DYSPLASIA (TYPE I)
63
abnormal dentin: remaining coronal and root dentin consist of a series of fused nodular masses composed of tubular dentin and osteodentin
RADICULAR DENTIN DYSPLASIA (TYPE I)
64
slit-like remnant of pulpal tissue
RADICULAR DENTIN DYSPLASIA (TYPE I)
65
“lava flowing around boulders”
RADICULAR DENTIN DYSPLASIA (TYPE I)
66
gnarled burlwood
RADICULAR DENTIN DYSPLASIA (TYPE I)
67
series of sand dunes
RADICULAR DENTIN DYSPLASIA (TYPE I)
68
True or false CORONAL DENTIN DYSPLASIA (TYPE II) CLINICAL FEATURES is both dentitions affected
True
69
Primary Teeth bluish gray, brownish, yellowish color
CORONAL DENTIN DYSPLASIA (TYPE II)
70
Permanent Teeth normal clinical appearance; roots have normal shape and length
CORONAL DENTIN DYSPLASIA (TYPE II)
71
Deciduous Teeth → have obliterated pulp chambers → roots of both dentitions of N shape and length
CORONAL DENTIN DYSPLASIA (TYPE II)
72
Permanent Teeth → large pulp chamber → pulp stones in pulp chambers → narrow pulp canals
CORONAL DENTIN DYSPLASIA (TYPE II)
73
the radicular extension is thistle-shaped or flame-shaped to the root portion of the pulp (very narrow)
CORONAL DENTIN DYSPLASIA (TYPE II)
74
Deciduous Teeth → normal zone of mantle dentin
CORONAL DENTIN DYSPLASIA (TYPE II)
75
Permanent Teeth → normal coronal dentin except for pulpal third which exhibits areas of globular and interglobular dentin → numerous pulp stones
CORONAL DENTIN DYSPLASIA (TYPE II)
76
amorphous/atubular root dentin
CORONAL DENTIN DYSPLASIA (TYPE II)
77
GHOST TEETH
REGIONAL ODONTODYSPLASIA (ODONTOGENESIS IMPERFECTA)
78
odontodysplasia, odontogenic dysplasia, odontogenesis imperfecta, ghost teeth
REGIONAL ODONTODYSPLASIA
79
Enamel & Dentin- thin & defective Pulp Chamber- very large
REGIONAL ODONTODYSPLASIA (GHOST TEETH)
80
→ excessive deposition of cementum → overgrowth of the cementum
HYPERCEMENTOSIS
81
becomes bulbous as it goes to the apical area
Apical Hypercementosis
82
Diffused Hypercementosis is an all around True or false
True
83
it will be harder to extract because there’s too much cementum closely attached to the bone (thick); on the sides of the tooth
Lateral Hypercementosis
84
→ small, calcified areas found in periodontal membrane → free, attached, embedded
CEMENTICLES
85
→ teeth are united by cementum only → form of fusion which occurs after root formation has been completed
CONCRESCENCE

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