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Endo > Traumatic Injuries > Flashcards

Traumatic Injuries Flashcards

1
Q

Crown fractures without pulp structure, that only involve the enamel and dentin are considered

A

Uncomplicated

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2
Q

What is the tx for an uncomplicated fracture

A

Immediate exposed dentin protection with CaOH cement or other hard dental liner (Vitrabond).
Restore/reattach separated tooth fragment.

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3
Q

Crown fractures that involve enamel, dentin and pulp are classified as

A

Complicated 13%

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4
Q

What factors should be considered on complicated crown fractures

A

Extent of fx
Stage of root development.
Length of time since fx.
Restorative tx plan.

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5
Q

What is the tx for complicated crown fractures

A

pulp capping (CaOH) - first 30 hrs
Partial pulpotomy
full pulpotomy
Pulpectomy

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6
Q

On a mature tooth, what afford the most predictable success

A

Pulpectomy

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7
Q

On immature teeth, what should always be attempted

A

vital pulp therapy

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8
Q

What is Check pulpotomy

A 
shallow 2mm; day of injury >80% success rate 
No files in the canal
Use glass Ionomer to seal
MTA will set in half hour
Etch and build up.
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9
Q

What are some properties of MTA

A 
High pH
bacteria tight seal
Hardens
can act as a base for permanent restorations
Needs moisture to cure; two appointments
Expensive
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10
Q

What is CaOH mixed with to create a paste

A

saline

anesthesia

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11
Q

What two materials can be used to seal

A

ZOE

glass ionomer

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12
Q

What is a crown-root fracture

A

Enamel, dentine and root cementum are involved but the pulp might or might not be.
Usually oblique
Periodontal, rather than endodontic challenge

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13
Q

What is a root fracture

A

Cementum
dentin
pulp
Horizontal; only seen on X-ray if beam goes directly through fx (transverse or oblique)

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14
Q

What is the tx for a root fracture

A

Splint; cervical or middle 1/3
No immediate tx for apical 1/3
Reposition and stabilize

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15
Q

What is a concussion

A

No displacement
No mobility
Percussion sensitive
No tx

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16
Q

What is a subluxation

A

No displacement but mobile
Sensitive with possible sulcular bleeding
No tx

17
Q

What is an extrusive lesion

A 
Displacement coronally
Mobile
X-ray shows displacement
Pulp test; non vital
Tx; reposition, splint 2-4 wks, RCT later if needed
18
Q

What is a lateral lesion

A

Displacement (MDBL),

Tx; reposition, splint 2-4 wks, RCT later if needed

19
Q

What is an intrusive lesion

A 
Displacement apically
No mobility
May re-erupt spontaneously or with ortho extrusion
High incidence of ankylosis
RCT
20
Q

What is an avulsion luxation

A

Complete displacement from socket.

21
Q

What is the tx for avulsion luxation

A

Immediate reimplantation and splint

Duration, storage medium, apical maturity key factors

22
Q

What is the tx for avulsion lunation with extra oral time less than 60 min with closed apex

A 
Keep in saline, milk or saliva
X-ray
Irrigate socket (coagulum)
reimplant and splint 2 wks (flexible
Abx; doxy or pen
RCT one week 
CaOH for 2 weeks
23
Q

What is the tx for avulsion lunation with extra oral time less than 60 min with open apex

A 
Saline to clean
Doxycycline for 5 minutes
Minocycline 
reimplant and splint
Abx 
follow for vitality; 2,6,12 months
24
Q

What is the tx for avulsion lunation with extra oral time more than 60 min with closed apex

A

Soak in 2% NaF 5-20 min
RCT in NaF soaked gauze in hand
Reimplant and splint 4 weeks (ankylosis-high)

25
Q

What is the tx for avulsion lunation with extra oral time more than 60 min with open apex

A

May not reimplant due to high incidence of ankylosis

RCT out of mouth

26
Q

How long does it take for barrier formation after apexification

A

9-24 months

27
Q

What is the barrier formed after apexification

A

Osteoid or cementoid

28
Q

What to do for a pulp necrosis with an open apex

A

MTA fill

Endo (15 decks)

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