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LESSON 1 (Dental Anomalies) Flashcards

1
Q

Name the DENTAL ANOMALIES in SIZE

A

Microdontia
Macrodontia

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2
Q

DENTAL ANOMALIES in number

A

*Anodontia
*False anodontia
*Supernumerary tooth

MESIODENS
PERIDENS DISTOMOLAR MESIOMOLAR PARAMOLAR TUBERCLE

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3
Q

Dental anomalies in SHAPE AND FORM involving crown

A

● FUSION
● GEMINATION
● TAURODONTISM
● DENS INVAGINATUS
● LEONG’S PREMOLAR
● PEG TOOTH
● HUTCHINSON’S TEETH
● TALON’S CUSPS

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4
Q

ERUPTION ANOMALY

A

PREMATURE
DELAYED
THIRD DENTITION

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5
Q

Dental anomalies in SHAPE AND FORM Involving root

A

● Too large or too small roots
● Accessory roots
● Fusion of roots
● Concrescence
● Enamel pearls
● Twisted root
● Dilaceration

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6
Q

What are the CLASSIFICATION OF IMPACTION
IN RELATION TO RAMUS & 2ND MOLAR

A

CLASS I CLASS II CLASS III

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7
Q

Used to describe teeth which are smaller than normal

A

MICRODONTIA

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8
Q

‘peg lateral’ is what condition?

A

MICRODONTIA

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9
Q

cone-shaped crown

A

Peg lateral

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10
Q

the opposite of microdontia and refers to teeth that are larger than normal.

A

MACRODONTIA

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11
Q

Has been associated with pituitary gigantism,
but is extremely rare

A

MACRODONTIA

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12
Q

in which all teeth are missing, may involve both deciduous and permanent dentition.

A

ANODONTIA

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13
Q

occurs as a result of extraction of all teeth.

A

False anodontia

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14
Q

sometimes applied to multiple unerupted teeth.

A

Pseudoanodontia

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15
Q

Involves one or more teeth and is a rather common condition.

Ex. Congenitially absend left maxillary central incisor resulting in underdevelopment of the maxilla and severe malocclusion

A

Hypodontia

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16
Q

SUPERNUMERARY TOOTH

extra tooth between maxillary central incisors

A

Mesiodens

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17
Q

SUPERNUMERARY TOOTH

extra tooth found elsewhere than in the midline of the arch

A

Peridens

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18
Q

SUPERNUMERARY TOOTH

extra teeth on the buccal or lingual side of
the maxillary molar

A

Paramolars

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19
Q

SUPERNUMERARY TOOTH

additional cusp on the
buccal surface of a permanent maxillary molar

A

Paramolar tubercle

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20
Q

ERUPTION ANOMALY

INVOLVING CROWN

Two tooth buds/germs fused or joined together

A

Fusion

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21
Q

ERUPTION ANOMALY

INVOLVING CROWN

One tooth bud and became two teeth

A

Gemination

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22
Q

ERUPTION ANOMALY

INVOLVING CROWN

o Bull
o The tooth has a big body but small extremities (big crown, pulp, coronal pulp but small roots)

A

Taurodontism

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23
Q

ERUPTION ANOMALY

INVOLVING CROWN

The tooth development is going inside

A

Dens invaginatus

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24
Q

ERUPTION ANOMALY

INVOLVING CROWN

The tooth development is going outside

A

Leong’s premolar or dens evaginatus

25
ERUPTION ANOMALY INVOLVING CROWN o Common in central or lateral incisors o Usually central incisors with a notch on the incisal edge
HUTCHINSON’S TEETH
26
ERUPTION ANOMALY INVOLVING CROWN o Usually found on the upper central incisors on the lingual side o These are over-developed cingulum
Talon’s cusps
27
abnormal space between teeth
Diastema
28
anomalies which arise from an attempt at division of a single tooth germ by an invagination, with resultant incomplete formation of two teeth.
GEMINATION
29
The structure is usually one with two completely or incompletely separated crowns that have a single root and root canal. • ‘twinning’
GEMINATION
30
Was described as a peculiar dental anomaly in which the body of the tooth is enlarged at the expense of the roots. ‘bull-like’ teeth
TAURODONTISM
31
“Dens in dente”, tooth within a tooth
DENS INVAGINATUS
32
A developmental condition that appears clinically as an accessory cusp or a globule of enamel on the occlusal surface between the buccal and lingual cusps of premolars, unilaterally or bilaterally, although it has been reported to occur rarely on molars, cuspids, and incisors
DENS EVAGINATUS
33
An anomalous structure resembling an eagle’s talon, projects lingually from the cingulum areas of a maxillary or mandibular permanent incisor.
TALON CUSP
34
ERUPTION ANOMALY INVOLVING ROOT • A form of fusion which occurs after root formation has been completed. • In this condition, teeth are united by cementum only.
CONCRESCENCE
35
ERUPTION ANOMALY INVOLVING ROOT Maxillary premolar with three roots rather than the usual two
Accessory roots/ supernumerary roots
36
INVOLVING ROOT extra enamel
Enamel pearls
37
towards the labial
Labioversion
38
towards the buccal
Buccoversion
39
towards the lingual
Linguoversion
40
towards the mesial
Mesioversion
41
towards the distal
Distoversion
42
rotation of a tooth on its long axis
torsoversion
43
crossing the line of occlusion
Supraversion
44
away from the line of occlusion
Infraversion
45
interchange in the position of two permanent adjacent teeth located at the same quadrant in the dental arch
Transposition
46
if the position of the tooth is in the other arch
Migration
47
CLASSIFICATION OF IMPACTION (IN RELATED TO RAMUS AND SECOND MOLAR) Enough space between ramus and distal of second molar
Class I
48
CLASSIFICATION OF IMPACTION (IN RELATED TO RAMUS AND SECOND MOLAR) Mesiodistal width of the third molar crown can pass
Class I
49
CLASSIFICATION OF IMPACTION (IN RELATED TO RAMUS AND SECOND MOLAR) Space between the ramus and distal of second molar is less than the mesiodistal width of the 3rd molar crown
Class II
50
CLASSIFICATION OF IMPACTION (IN RELATED TO RAMUS AND SECOND MOLAR) All or most of the third molar is located within the ramus
Class III
51
RELATIVE DEPTH OF 3RD MOLAR Occlusal surface of the 3rd molar is the same level as the occlusal surface of the 2nd molar
Position A
52
RELATIVE DEPTH OF 3RD MOLAR Occlusal surface of the 3rd molar is located between cervical line and occlusal place of the 2nd molar
Position B
53
RELATIVE DEPTH OF 3RD MOLAR Occlusal surface of the 3rd molar is deeper than the cervical line of the 2nd molar
Position C
54
POSITION OF LONG AXIS OF THE 3RD MOLAR IN RELATION TO THE 2ND MOLAR
● VERTICAL ● HORIZONTAL ● INVERTED ● MESIOANGULAR ● DISTOANGULAR ● BUCCOANGULAR ● LIGUOANGULAR
55
Cervical line of crown of third molar is in line of occlusal plane of 2nd molar
Class A
56
between occlusal plane and cervical line of 2nd
CLASS B
57
is at or above cervical line of 2nd molar
CLASS C
58
Max.3rd molar impaction
● SA - with sinus approximation ● NSA - without sinus approximaiton ( 2mm or more )

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