Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Tooth Morphology > Dental Anomalies > Flashcards

Dental Anomalies Flashcards

1
Q

Deviation from normal usually related to embryonic development

A

Anomaly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Where do more anomalies usually occur?

A

-Permanent dentition
-Maxilla

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the anomalies occurrence percentage?

A

less than 2%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Absence of teeth

A

Anodontia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Missing one or two teeth

A

Partial hypodontia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What does anodontia usually occur from?

A

A disturbance during the initiation stage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is needed to prove teeth are missing?

A

Radiograph

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are the most common missing teeth in order?

A
  1. Maxillary 3rd molars
  2. Maxillary lateral incisors
  3. mandibular 2nd premolars
  4. Canines
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Extra teeth

A

Supernumerary teeth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What percentage of the population does supernumerary teeth occur in?

A

0.3-3.8%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are the most common areas for supernumerary teeth?

A

-Maxillary incisor area
-Maxillary 3rd molar area

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What does supernumerary teeth usually occur from?

A

A disturbance during the initiation stage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Small supernumerary tooth forms between central incisors

A

Mesiodens

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is often thought to be genetic, but may be microdontia from developmental disturbance during bud stage?

A

Peg shaped laterals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Teeth developed from one lobe instead of four

A

Peg shaped laterals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Splitting of a single forming tooth

A

Germination (twinning)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Tooth division is incomplete so twinned crowns appear double in width and possibly notched

A

Germination

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Single tooth root is not split and has common pulp canal

A

Germination

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Tooth count is normal

A

Germination

20
Q

Union of tooth germs always involving dentin

A

Fusion

21
Q

-Fused teeth have one crown that appears doubled
-Two separate but fused roots with separate pulp chambers

A

Fusion

22
Q

-Thought to be caused by pressure or force during root formation
-One less tooth count

A

Fusion

23
Q

Mother passes syphilis onto her unborn baby
-Can affect both dentitions

A

Hutchinson’s incisors / Mulberry molars

24
Q

-Incisors may be screwdriver shaped, broader cervically, notched incisal edge
-First molars may have multiple berry like tubercles

A

Hutchinson’s incisors / mulberry molars

25
Q

Extra projection resembling an eagle’s talon

A

Talon cusp

26
Q

Extra cusp

A

Tuberculum intermedium

27
Q

Small round nodules of enamel with a tiny core of dentin

A

Enamel pearls

28
Q

-Bull or prism teeth
-Very long pulp chamber without constriction at CEJ
-Most often seen in American Indians/Artic

A

Taurodontia

29
Q

Severe bend or angular distortion of a tooth root
-May be result of trauma or insufficient space

A

Dilaceration (flexion)

30
Q

Developmental resulting from the invagination of the enamel organ without the crown of a tooth

A

Dens in dente

31
Q

Teeth fail to erupt due to lack of eruptive force

A

Unerupted teeth

32
Q

Teeth fail to erupt due to mechanical obstruction

A

Impacted teeth

33
Q

What is initiated by an infection or trauma to the periodontal ligament?
-Loss of PDL space so the tooth root is fused to alveolar bone

A

Ankylosis

34
Q

What indicates abnormal development?

A

Dysplasia

35
Q

What refers to formation or development?

A

Terms ending in plasia

36
Q

Disturbance in enamel-forming cells - ameloblasts
-May be a result from high fever, nutritional deficiencies, or excess amount of fluoride

A

Enamel dysplasia

37
Q

-Hereditary disorder affects both dentitions
-Rough yellow to brownish crowns

A

Amelogenesis Imperfecta

38
Q

Mottled or pitted enamel

A

Fluorosis

39
Q

Incomplete development of enamel - localized discolored spot
-Most likely caused by infection of tooth

A

Focal hypoplasia (turner tooth)

40
Q

What is in 1:8000 people?

A

Dentin dysplasia

41
Q

Affects dentin formation of both dentitions
-Light blue-gray to yellow opalescent
-Weak teeth
Absence of pulp chamber and canal due to calcification

A

Dentinogenesis imperfecta

42
Q

Yellow to gray brown color of teeth

A

Tetracyline stain

43
Q

What is not considered an anomolies?

A

Changes in tooth shape after eruption

44
Q

Wearing away of enamel from tooth-to-tooth movement
-Bruxism

A

Attrition

45
Q

Wearing away of tooth structure by mechanical force
-Toothbrushing, tobacco

A

Abrasion

46
Q

Loss of tooth structure by chemical means
-Acid reflux, drinks

A

Erosion

47
Q

Cervical loss of tooth structure thought to occur from tooth bending under heavy occlusal forces

A

Abfraction

Tooth Morphology (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions