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DCT 2 PREP - MFDS > Ameloeogenesis Imperfecta > Flashcards

Ameloeogenesis Imperfecta Flashcards

1
Q

Assess 8-year old child and spot brown discolouration through dentition. Child is F+W and have good OH. What is differential dx?

A

Trauma
Medication
Infection
Genetic

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2
Q

How can staining of teeth be caused?

A

Can be extrinsic - food/ drink and smoking or intrinsic causes

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3
Q

What medication can cause generalised staining of the teeth?

A

Tetracycline - inc taken during pregnancy or under 12 years

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4
Q

What are stained teeth caused by infection called?

A

Turners teeth

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5
Q

What are examples of genetic staining?

A

AI/ DI

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6
Q

How does AI present?

A

AI affects enamel formation and discolouration is from browner dentine showing through

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7
Q

How does DI present?

A

Intact enamel but poorly formed dentine - teeth appear translucent

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8
Q

What types of DI is there?

A

4 types
DI type I is associated w/ osteogenesis imperfecta

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9
Q

What is fluorosis?

A

Caused by excessive fluoride intake
Affect formation of enamel leading to widespread discolouration

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10
Q

What questions are useful to help determine cause of discolouration?

A

Duration - how long, did it affect baby teeth
MH and drug hx
FH
SH - area w/ fluoridated water

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11
Q

What is the clinical presentation of AI?

A

Teeth appear smaller, discoloured, pitted or groove, prone to rapid wear
Delayed eruption, short roots, trauodontism

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12
Q

What dentition does AI affect?

A

Both primary and permanent dentition

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13
Q

What are 3 classifications of AI?

A

Hypoplastic
Hypocalcified
Hypomature

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14
Q

How does hypo plastic AI present?

A

Enamel of reduced thickness w/ pitting and grooves in enamel

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15
Q

How does hypo calcified AI present?

A

Opaque and chalky areas
Wears quickly

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16
Q

What does hypo mature AI present?

A

Enamel is of normal thickness but has mottled appearance

17
Q

What causes AI?

A

Genetic condition - caused single gene mutation

18
Q

What are the CO from someone w/ AI?

A

Appearance - discoloured and small
Sensitivity due poor-quality enamel
Poor OH due to sensitivity

19
Q

What are stages of managing pt w/ AI?

A

Prevention
Stabilisation
Maintenance

20
Q

How to restore teeth w/ AI?

A

Initially restore w/ composite and FS. As permanent dentiotn/ maturation gingiva margin may need to consider crown lengthening/ indirect restorations

21
Q

Should AI pt be managed in primary care?

A

Often require specialist input as require complex tx inc XLA/ fixed prosthesis

DCT 2 PREP - MFDS (58 decks)

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