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

LESSON 3 (ENAMEL, DENTIN, CEMENTUM DEFECTS) Flashcards

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
Q

hereditary brown opalescent teeth

A

AMELOGENESIS IMPERFECTA

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26
Q

teeth erupt with insufficient amount of enamel from pits and grooves to complete absence (aplasia)

A

HYPOPLASTIC

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27
Q

abnormal contour and absent interproximal contact points evident

A

HYPOPLASTIC

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28
Q

the quantity of enamel is normal but it is soft and friable

A

HYPOCALCIFIED

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29
Q

fractures and wears readily

A

HYPOCALCIFIED

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30
Q

color ranges from white opaque to yellow to brown teeth darkens with age

A

HYPOMATURATION

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31
Q

radiographically, enamel appears reduced in bulk, often showing a thin layer over occlusal and interproximal surfaces

A

HYPOMATURATION

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32
Q

dentin and pulp chamber appears normal and are not
caries prone

A

HYPOMATURATION

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33
Q

treatment of HYPOMATURATION

A

no treatment necessary other than cosmetic restoration

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34
Q

an autosomal dominant condition affecting both deciduous and permanent teeth

A

DENTINOGENESIS IMPERFECTA

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35
Q

affected teeth are gray to yellowish-brown and have broad crowns with constriction of the cervical area resulting in a ‘tulip’ shape

A

DENTINOGENESIS IMPERFECTA

36
Q

translucent hue

A

DENTINOGENESIS IMPERFECTA

37
Q

partial or complete obliteration of the pulp in Type I or II

A

DENTINOGENESIS IMPERFECTA

38
Q

RADIOGRAPHIC FEATURES
→ the teeth appear solid, lacking pulp chambers and root canals

A

DENTINOGENESIS IMPERFECTA

39
Q

RADIOGRAPHIC FEATURES

enamel may be lost early through fracturing away because of
abnormal DEJ

A

DENTINOGENESIS IMPERFECTA

40
Q

always occurs in families with osteogenesis imperfecta

A

TYPE I DENTINOGENESIS IMPERFECTA

41
Q

primary teeth more severely affected

A

TYPE I DENTINOGENESIS IMPERFECTA

42
Q

→ hereditary opalescent dentin
→ never occurs in association with osteogenesis imperfecta

A

TYPE II DENTINOGENESIS IMPERFECTA

43
Q

→ this is inherited as an autosomal dominant trait
→ dentitions are equally affected

A

TYPE II DENTINOGENESIS IMPERFECTA

44
Q

there is continued formation of dentin

A

TYPE II DENTINOGENESIS IMPERFECTA

45
Q

Brandywine type

A

TYPE III DENTINOGENESIS IMPERFECTA

46
Q

same clinical appearance with Type I and II

A

TYPE III DENTINOGENESIS IMPERFECTA

47
Q

→ multiple pulp exposures in deciduous teeth
→ both dentitions are affected

A

TYPE III DENTINOGENESIS IMPERFECTA

48
Q

“shell teeth”

A

TYPE III DENTINOGENESIS IMPERFECTA

49
Q

→ enamel of tooth appears normal, but dentin is extremely thin

A

TYPE III DENTINOGENESIS IMPERFECTA

50
Q

pulp chambers are enormous due to effective dentin formation

A

TYPE III DENTINOGENESIS IMPERFECTA

51
Q

extremely short roots

A

TYPE III DENTINOGENESIS IMPERFECTA

52
Q

HISTOLOGIC FEATURES
→ defective dentin, normal enamel
→ dentin is composed of irregular dentinal tubules
o larger in diameter
o less numerous than normal

A

TYPE III DENTINOGENESIS IMPERFECTA

53
Q

→ there may be complete absence of dentinal tubules
→ there is absence of scalloping in the DEJ

A

TYPE III DENTINOGENESIS IMPERFECTA

54
Q

CHEMICAL AND PHYSICAL FEATURES
→ water content is greatly increased
→ inorganic content is less than normal dentin

A

TYPE III DENTINOGENESIS IMPERFECTA

55
Q

ROOTLESS TEETH

A

DENTIN DYSPLASIA

56
Q

CLINICAL FEATURES
→ increased mobility and may exfoliate prematurely

A

RADICULAR DENTIN DYSPLASIA (TYPE I)

57
Q

RADIOGRAPHIC FEATURES
→ short, blunt, bulged, conical or absent roots
→ distinct W-shaped roots of a mandibular molars

A

RADICULAR DENTIN DYSPLASIA (TYPE I)

58
Q

→ periapical radiolucencies present in the absence of caries
representing
→ abscess, granulomas, or cysts

A

RADICULAR DENTIN DYSPLASIA (TYPE I)

59
Q

Primary Teeth
total obliteration of pulp chambers

A

RADICULAR DENTIN DYSPLASIA (TYPE I)

60
Q

Permanent Teeth
pulpal obliteration, thin crescent-shaped remnants of pulp chambers

A

RADICULAR DENTIN DYSPLASIA (TYPE I)

61
Q

HISTOPATHOLOGY
→ enamel and mantle layer of dentin are normal

A

RADICULAR DENTIN DYSPLASIA (TYPE I)

62
Q

abnormal dentin:
o less dense, a lot of regular distribution and orientation of tubular dentin aside from tubular dentin, there’s also osteodentin

A

RADICULAR DENTIN DYSPLASIA (TYPE I)

63
Q

abnormal dentin:

remaining coronal and root dentin consist of a series of fused nodular masses composed of tubular dentin and osteodentin

A

RADICULAR DENTIN DYSPLASIA (TYPE I)

64
Q

slit-like remnant of pulpal tissue

A

RADICULAR DENTIN DYSPLASIA (TYPE I)

65
Q

“lava flowing around boulders”

A

RADICULAR DENTIN DYSPLASIA (TYPE I)

66
Q

gnarled burlwood

A

RADICULAR DENTIN DYSPLASIA (TYPE I)

67
Q

series of sand dunes

A

RADICULAR DENTIN DYSPLASIA (TYPE I)

68
Q

True or false

CORONAL DENTIN DYSPLASIA (TYPE II)

CLINICAL FEATURES is
both dentitions affected

69
Q

Primary Teeth
bluish gray, brownish, yellowish color

A

CORONAL DENTIN DYSPLASIA (TYPE II)

70
Q

Permanent Teeth
normal clinical appearance; roots have normal shape and length

A

CORONAL DENTIN DYSPLASIA (TYPE II)

71
Q

Deciduous Teeth
→ have obliterated pulp chambers
→ roots of both dentitions of N shape and length

A

CORONAL DENTIN DYSPLASIA (TYPE II)

72
Q

Permanent Teeth
→ large pulp chamber

→ pulp stones in pulp chambers
→ narrow pulp canals

A

CORONAL DENTIN DYSPLASIA (TYPE II)

73
Q

the radicular extension is thistle-shaped or
flame-shaped to the root portion of the pulp
(very narrow)

A

CORONAL DENTIN DYSPLASIA (TYPE II)

74
Q

Deciduous Teeth
→ normal zone of mantle dentin

A

CORONAL DENTIN DYSPLASIA (TYPE II)

75
Q

Permanent Teeth
→ normal coronal dentin except for pulpal third which exhibits areas of globular and interglobular dentin
→ numerous pulp stones

A

CORONAL DENTIN DYSPLASIA (TYPE II)

76
Q

amorphous/atubular root dentin

A

CORONAL DENTIN DYSPLASIA (TYPE II)

77
Q

GHOST TEETH

A

REGIONAL ODONTODYSPLASIA
(ODONTOGENESIS IMPERFECTA)

78
Q

odontodysplasia, odontogenic dysplasia, odontogenesis imperfecta, ghost teeth

A

REGIONAL ODONTODYSPLASIA

79
Q

Enamel & Dentin- thin & defective

Pulp Chamber- very large

A

REGIONAL ODONTODYSPLASIA (GHOST TEETH)

80
Q

→ excessive deposition of cementum
→ overgrowth of the cementum

A

HYPERCEMENTOSIS

81
Q

becomes bulbous as it goes to the apical area

A

Apical Hypercementosis

82
Q

Diffused Hypercementosis is an
all around

True or false

83
Q

it will be harder to extract because there’s too much cementum closely attached to the bone (thick); on the sides of the tooth

A

Lateral Hypercementosis

84
Q

→ small, calcified areas found in periodontal membrane
→ free, attached, embedded

A

CEMENTICLES

85
Q

→ teeth are united by cementum only
→ form of fusion which occurs after root formation has been
completed

A

CONCRESCENCE

ORAL PATH (15 decks)

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