Brainscape's Knowledge GenomeTM

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


See full index

3012 Oral Surgery > Non carious diseases of teeth > Flashcards

Non carious diseases of teeth Flashcards

1
Q

Local factors of acquired disorders

A

trauma – dilacerated incisor/turner teeth
infection –turner teeth
radiotherapy
idiopathic – regional odontodysplasia/enamel opacities

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

Systemic factors of acquired disorders

A

tetracycline disorders
serious systemic disease or malnutrition
fluorosis

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

dilacerated incisor

A

trauma displaces the crown of the developing tooth
root development continues but at an angle
tooth fails to erupt often with retention of the deciduous predecessor

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

turner teeth

A

arises due to local trauma/infeection
due to issues with primary predecessor
range of disorders from yellow-brown pigmentation of enamel to extensive pitting and irregularity of the crown

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

regional odontodysplasia

A

ghost teth
local development eg vascular defect causing ischaemia, local infection

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

enamel opacities

A

1 in 3 children
histologically hypomineralised

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

tetracycline staining

A

tetracycline becomes incorporated in the teeth mineralising at the same time
teeth normal when erupt – gradually grey colour

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

hereditary conditions

A

teeth only
- absent teeth/additional teeth
- connations
- dens-in-dente
- amelogenesis imperfecta and dentinogenesis imperfecta

affecting other tissues in addition to teeth
- osteogenesis imperfecta
- cleidocranial dysplasia
- anhidrotic ectodermal dysplasia
- down’s syndrome

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

Connation

A

Union of 2 teeth during development involving enamel, dentine and pulp

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

Concrescence

A

Union of teeth at roots by deposition of cementum
always affect roots

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

Connations classified

A

fusion : union between 2 initially separate tooth germs
germination : the union by incomplete separation of 2 teeth developing from single tooth germ

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

connation present in population

A

0.5-1% of population have deciduous tooth connation
0.1% of population have permanent tooth connation
inherited as an autosomal dominant trait

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

clinical features of connation

A

enlarged crowns with apparent partial separation
cause crowding/delayed eruption of adjacent teeth

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

concrescence

A

multiple teeth fused at root
molar teeth

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

pathology concrescence

A

inflammatory/space-occupying lesion
union via cementum deposition

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

treatment for both connations and concrescence

A

depends on aesthetic/function factors
endo and restorative procedures with permanent incisor connations
extractions for impacted and unerupted 3rd molars

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

dens in dente

A

localised disturbance of tooth development
deep penetrating pit extending into the tooth from the crown
invaginated odontome

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

general features of dens in dente

A

1-5% population
maxillary lateral incisors
bilateral

19
Q

clinical features dens in dente

A

tooth crown may be distorted
invagination arises in crown
base of pit will have a thin layer of enamel/dentine

20
Q

HPC dens in dente

A

incidental finding
morphological abnormality
periodontal pain

21
Q

radiolographical features of dens in dente

A

affected tooth may show intracoronal radiolucency
extend to involve root
associated with periapical radiolucency

22
Q

pathology of dens in dente

A

deeply penetrating pit lined by enamel
distortion of underlying dentine
enamel and dentine may be defective

23
Q

treatment of dens in dente

A

endodontic tx
extraction

24
Q

amelogenesis imperfecta

A

produce inherited congenital defects primarily of enamel formation with/without defects in tooth morphology and/or eruption

25
Q

clinical features amelogenesis imperfecta

A

hypoplastic - thin enamel. surface rough and discoloured.
hypomature - abnormal thickness. opaque/discoloured
hypocalcified - abnormal thickness of enamel

26
Q

radiological features of amelogenesis imperfecta

A

thin layer of enamel of normal radiodensity in hypoplastic AI
reduced radiodensity of enamel in hypomature and hypocalcified AI
may have been unerupted teeth or delayed eruption

27
Q

pathology of amelogenesis imperfecta

A

variety of morphological changes in enamel substructure as well as hardness and thickness

28
Q

dentinogenesis imperfecta

A

congenital defects in primarily in dentine formation, which may be associated with osteogenesis imperfecta

29
Q

dentinogenesis imperfecta general features

A

1 in 6k livebirths
variety of inheritance patterns
variety of molecular and biochemical defects affecting collagen

30
Q

dentinogenesis imperfecta HPC

A

present in childhood
discolouration or rapid wear of teeth

31
Q

detinogenesis imperfecta clinical features

A

amber or blue
bulbous crown
easy fracturing of enamel with rapid attrition

32
Q

dentinogenesis imperfecta radiological features

A

teeth have short roots
rapid obliteration of pulp chambers and canals after eruption

33
Q

dentinogenesis imperfecta pathology

A

enamel normal
mantle dentine formation
later formed dentine abnormal
pulp cavity obliterated

34
Q

cleidocranial dysplasia

A

rare genetic condition that affects teeth and bones such as skull etc

35
Q

Cleidocranial dysplasia HPC

A

failure in eruption of permanent teeth

36
Q

Cleidocranial dysplasia clinical features

A

short stature
prominence of frontal,parietal,occipital bones
absent of clavicles
delayed shedding of deciduous teeth

37
Q

cleidocranial dysplasia radiological features

A

absent clavicle
broad skull

38
Q

cleidocranial dysplasia pathology

A

bone show trabeculation and thick collagen bundles
teeth with thin roots with deficient or absent secondary cellular cementum

39
Q

treatment of cleidocranial dysplasia

A

combination of surgery and ortho
surgery to remove deciduous teeth and expose permanent successors
ortho to encourage eruption and align teeth

40
Q

Hypodidrotic ectodermal dysplasia

A

x-linked recessive condition characterised by a developmental failure of ectodermal structures, particularly skin/hair/sweat glands

41
Q

hypohidrotic ectodermal dysplasia general features

A

x linked recessive
detected first in early childhood

42
Q

hypohidrotic ectodermal dysplasia clinical features

A

absent/malformed teeth
cone shaped teeth
few teeth

43
Q

down’s syndrome

A

congenital condition characterised by intellectual disability, trisomy of chromosome 21

44
Q

general features of down’s syndrome

A

characterised facies with prominent epicanthic folds, downwardly slanted palebral fissures, mid-facial hypoplasia
short stature

3012 Oral Surgery (14 decks)

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