CDH 4.4 Flashcards

1
Q

When is antibiotic cover required for avulsed teeth?

A

When they have fallen on the floor and are likely to have collected bacteria

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2
Q

What substance is placed at an open root apex of a permanent extirpated tooth? and how much?

A

MTA

4-6mm approx

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3
Q

What is the trauma stamp for an injury to teeth?

A
Mobility 
Displacement 
Colour 
TTP 
Sinus 
Thermal and electric pulp tests 
Radiographs
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4
Q

What can happen to teeth when they have significant PDL damage?

A

Can lead to resorption

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5
Q

If can not clinically see enamel fractures, how can you determine if there are any?

A

Radiograph possibly

Shining a bright light behind tooth

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6
Q

What is the purpose of a composite bandage if a tooth has incured injury?

A

Seals dentine

Not aesthetic

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7
Q

What is the purpose of a partial pulpotomy compared to a full or coronal pupotomy in growing permanent teeth?

A

Partial - removes 2-3mm of pulp tissue through exposure site which is more successful
Keeping vital pulp tissue in canal to allow normal root growth in root length and dentine thickness

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8
Q

What is the average time closure of an open apex pulpectomy?

A

9-12 months

But MTA gains on this time

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9
Q

What is the worst and good prognosis’ of a full root fracture?

A

Apical 1/3 = good prognosis

Coronal 1/3 = worst prognosis

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10
Q

What is the treatment of full root fractures?

A

Un-displaced/non-mobile = soft diet and monitor vitality
Displaced = reposition coronal portion and flexible splint for 4 weeks
Mobile = flexible splint for 4 weeks
If coronal 1/3 fracture may require splinting up to 4 months

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11
Q

What is the evidence of rigid splinting instead of flexible?

A

Rigid has no benefit in terms of vitality and hard tissue union

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12
Q

What is the management of root fracture and pulp necrosis?

A

Extirpate to fracture line and induce calcific barrier there

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