Brainscape's Knowledge GenomeTM

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


See full index

oral path 2 > Developmental Anomalies of the Teeth > Flashcards

Developmental Anomalies of the Teeth Flashcards

1
Q

This term is used to describe teeth which are smaller than
normal, i.e. outside the usual limits of variation.

A

microdontia

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

refers to teeth
that are larger than normal

A

macrodontia

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

Fusion of two teeth from a single enamel organ

A

Gemination

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

Partial cleavage

A

Gemination

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

Joining of two developing tooth germs resulting in a single large tooth structure

A

Fusion

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

Union of adjacent teeth within cementum only.

A

Concrescence

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

cause: Trauma or overcrowding.

A

Concrescence

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

Cause: attempt of single tooth bud to divide but fails with a resultant formation of tooth with bifid crown

A

gemination

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

most common in Maxillary second and third molars.

A

Concrescence

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

Maxillary lateral incisors in which the tooth crown appears cone or peg shaped

A

Microdontia

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

The permanent maxillary lateral incisors are most commonly involved. (Exaggeration or accentuation of the lingual pit)

A

Dens Invaginatus

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

dilated composite odontoma / Dens in dente or tooth within a tooth

A

Dens Invaginatus

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

Cause: Occlusal Abrasion, the tubercle wears relatively fast, causing early exposure of an accessory pulp horn that extends into the tubercle which results to periapical pathology.

A

Dens Evaginatus

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

Occlusal tuberculated premolar, Leong’s premolar, evaginated odontome, occlusal enamel pearl

A

Dens Evaginatus

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

a peculiar dental anomaly in which the body of the tooth is enlarged at the expense of the roots

A

Taurodontism

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

Enlargement of the pulp chamber of multirooted teeth with apical displacement of the pulp floor and bifurcation of the roots.

A

Taurodontism

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

The term means ‘bull-like’ teeth and its usage is derived from the similarity of these teeth to those of ungulate or cud-chewing animals

A

Taurodontism

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

cause: Trauma during root development.

A

Dilaceration

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

Extraordinary curving or angulation of tooth roots

A

Dilaceration

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

an anomalous structure resembling an eagle’s
talon, projects lingually from the cingulum areas of a maxillary tor mandibular permanent incisor.

A

talon Cusp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

more prevalent in persons with the Rubinstein-Taybi syndrome (developmental retardation, broad thumbs and great toes, characteristic facial features, delayed or
incomplete descent of testes in males, and stature, head circumference, and bone age below the fiftieth percentile).

A

talon Cusp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

A variation in tooth form in which teeth have elongated crowns

A

Taurodontism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Challenging for extraction and root canal fillings.

A

dilaceration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Accessory roots are most commonly seen in mandibular canines, premolars, and molars (especially third molars).

A

Supernumerary Roots

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Ectopic globules of enamel

A

Enamel Pearls

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Can either be internal (more common and usually found at a cervical or coronary location on the root surface) or external

A

Enamel Pearls

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Etiology: Localized developmental activity of Hertwig’s epithelial root sheath (HERS) cells that remained adherent to the root surface as the root development proceeds. HERS cells differentiate into functioning ameloblasts which deposit an enamel organic matrix on the root surface.

A

Enamel Pearls

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

the loss of tooth structure by a nonbacterial chemical process.

A

Erosion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Can be caused by extrinsic (exogenous could be diet, medication and lifestyle), intrinsic (endogenous can be caused by chronic vomiting, persistent GERD, regurgitation) or idiopathic.

A

Erosion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Physiologic wearing of teeth resulting from tooth to tooth contact (such as mastication).

A

Attrition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Parafunctional habits: bruxism and teeth clenching may contribute to it

A

Attrition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Age related process that can occur at the incisal or occlusal surfaces and can lead to dentinal exposure.

A

Attrition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

the pathologic wearing of teeth as a result of abnormal processes, habit or abrasive substance such as excessive force of toothbrushing.

A

Abrasion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

which class restoration is for abrasion cases?

A

class 5

34
Q

the absence of all teeth in the primary or permanent dentition.

A

Anodontia

35
Q

when one or several teeth are missing

A

Partial anodontia or hypodontia (oligodontia)

36
Q

multiple unerupted teeth

A

Pseudoanodontia

37
Q

a result of extraction of all teeth

A

False anodontia

38
Q

a condition where a tooth fails to erupt fully or properly into its intended position within the dental arch.

A

Impaction

39
Q

Etiology: crowding, ankylosis, genetics, early loss of primary teeth, irradiation, pathological conditions, developmental abnormalities of germs, supernumerary tooth.

A

Impaction

40
Q

Extra teeth in comparison to normal dentition, possible to occur both in the maxilla and in the mandible.

A

Supernumerary Teeth

41
Q

Results from continued proliferation of the permanent or primary dental lamina to form a third tooth germ (hyperactivity theory).

A

Supernumerary Teeth

42
Q
  • The various syndromes associated with __________ are:
    o Apert Syndrome
    o Angio-osteohypertrophy
    o Grouzans syndrome
    o Curtins syndrome
    o Cleido-cranial dysplasia
A

supernumerary teeth

43
Q

___________, if severe enough and long enough, can cause defects in the quantity and shape of enamel or in the quality and color of enamel.

A

Metabolic injury

44
Q

2 types of Environmental Defects of Enamel

A

Enamel hypoplasia
Enamel hypocalcification

45
Q

Quantitatively defective
enamel, when of normal hardness

A

enamel hypoplasia

46
Q

Qualitatively defective
enamel, in which normal amounts of enamel are produced but are hypomineralized

A

enamel hypocalcification

47
Q

A surface defect of the tooth that is caused by the disruption or insufficient development of enamel formation.

A

Enamel Hypoplasia

48
Q

Brownish, yellow, or white discolo ration, pits, grooves or even thin, chipped or missing portions of enamel on the tooth surface.

A

Enamel Hypoplasia

49
Q

Etiology: nutritional defects such as rickets, birth trauma, malnutrition.

A

Enamel Hypoplasia

50
Q

Defect in enamel that causes an insufficient amount of the minerals and calcium needed for healthy enamel
appear as thin, stained, or white-colored spots on teeth,

A

Enamel Hypocalficication

51
Q

“turner’s tooth”

A

Enamel Hypocalficication

52
Q

Etiology: genetic condition: amelogenesis imperfecta, nutritional deficiencies, trauma.

A

Enamel Hypocalficication

52
Q

Occur in areas where the drinking water contains excessive naturally occurring fluoride

A

Endemic Flourosis

52
Q

Mild to moderate fluorosis ranges clinically from white enamel spots to mottled brown-and-white discolorations.

Severe fluorosis appears as pitted, irregular, and discolored enamel.

A

Endemic Flourosis

53
Q
  • Inherited disorders characterized by abnormal enamel formation.
  • This condition causes teeth to be unusually small, discolored, pitted or grooved, and prone to rapid wear and breakage.
A

Amelogenesis Imperfecta

54
Q

3 clinical types of Amelogenesis Imperfecta

A

o Hypoplastic
o Hypocalcified
o Hypomaturation

55
Q

o Teeth erupt with insufficient amounts of enamel, ranging from pits and grooves in one patient to complete absence (aplasia) in another.

o Because of reduced enamel thickness in some cases, abnormal contour and absent interproximal contact points may be evident.

A

HYPOPLASTIC

56
Q

o The quantity of enamel is normal, but it is soft and friable, so that it fractures easily and wears readily.

o The color of the teeth varies from tooth to tooth and from patient to patient; colors include white opaque to yellow to brown.

A

HYPOCALCIFIED

57
Q

Formed with proper amount of enamel, which is calcified to a certain extent, but undergo defective maturation of the crystal structure of the enamel, resulting in soft enamel that is easy to chip.

A

HYPOMATURATION

58
Q
  • An autosomal-dominant trait
  • It typically affects the dentin of both primary and permanent dentitions.
  • Causes the teeth to be weaker and more brittle compared to a normal tooth.
A

Dentinogenesis Imperfecta

59
Q

(hereditary) opalescent dentin

A

Dentinogenesis Imperfecta

60
Q

o Dentin abnormality occurs in patients with concurrent osteogenesis imperfecta, primary teeth are more severely affected than permanent teeth

o Caused by mutations in the genes that encode collagen type I.

A

TYPE I

61
Q

o Patients have only dentin abnormalities and no bone disease affects primary more than permanent teeth. This may occur in people who exhibit signs of age-related hearing loss or deafness.

o Related to mutations in a gene known as dentin sialophosphoprotein that encodes noncollagen proteins of dentin.

A

TYPE II

62
Q

the most common type of dentinogenesis imperfecta

A

TYPE II

63
Q

The dentin appears thin and the pulp chambers and root canals extremely large, giving the appearance of thin dentin shells, hence the previous designation of shell teeth.

A

TYPE III

64
Q

It is a condition characterized by the disturbance in the formation of dentin causing it to grow abnormally.

A

Dentin Dysplasia

65
Q

Also known as radicular dentin dysplasia because the underdeveloped, abnormal pulp tissue is predominately in the roots of the teeth.

A

TYPE I

66
Q

Since the roots are abnormally short, it usually leads to the premature loss of teeth.

A

TYPE I Dentin Dysplasia

67
Q

Common type of dentin dysplasia

A

TYPE I Dentin Dysplasia

68
Q

o Also known as coronal dentin dysplasia, is a rare genetic disorder that affects the teeth.

o The coronal pulps are usually large (thistle tube appearance) and are filled with globules of abnormal dentin.

o Primary dentition have a discolorations that may range from yellow-brown to brownish-yellow.

A

TYPE II

69
Q

It is a condition characterized by dental abnormalities in the enamel, dentin, and cementum.

A

Regional Odontodysplasia

70
Q

Short roots, openings in the apical foramen, and large pulp chambers are clinical manifestations of affected teeth.

A

Regional Odontodysplasia

71
Q

Also known as ghost teeth

A

Regional Odontodysplasia

72
Q

It appears as masses of calcified tissue on the pulp chamber and tooth roots. Calcified structures found in the pulp are called ________.

A

pulp stones

73
Q
  • They can be nodular (pulp stones) and diffuse (linear).
A

Pulp Calcification

74
Q
  • Pulp stones can be classified as _______ and __________.
  • Pulp stones are subdivided into: (3)
A

true denticles
false denticles
o Attached Type
o Free Type
o Embedded Type

75
Q
  • It contributes to an inflammatory response that begins in the pulp space and leads to dentin loss and possibly cementum invasion.
A

Internal Resorption

76
Q
  • It is a resorption that can be seen on the external surface of the tooth and can also make an impact to the crown of an unerupted tooth.
A

External Resorption

77
Q

The pathogenesis of ___________ from these causes has been related to the
release of chemical mediators, increased vascularity, and
pressure.

A

external resorptio

78
Q

These are stains that develop on the surface of your teeth’s structure.
It can be removed with abrasives.

A

Exogenous Stains

79
Q

It occurs from deposits of systemically circulating chemicals during tooth formation that causes tooth discoloration.

A

Endogenous Stains

80
Q

The well-known cause for this condition is the ingestion of tetracycline.

A

Endogenous Stains

oral path 2 (8 decks)

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