Trauma- Extrusion

Question 0

Which tissues are affected in extruded teeth?

Answer 0

Alveolar bone intact
Severed NVB
Root face is exposed 
PDL separated
Gingival cuff

Question 1

What are the signs and symptoms of extrusion?

Answer 1

Displacement +
Mobility +++
Tooth protruded/retruded
TTP+
Vitality -(most commonly)

Question 2

What radiographs are taken in extruded teeth and when would follow up?

Answer 2

PA: PDL shows space is increased 
2 weeks
4 weeks
6-8weeks
6 month
1 yr
Yearly for five yrs

Question 3

what treatment is required for extruded teeth?

Answer 3

1. LA
2. Clean area
3. Reposition tooth with finger pressure
4. Place resin connect or wire splint for 2/52
5. Suture lacerations

Question 4

What is the prognosis for extruded teeth with San open apex and closed apex?

Answer 4

Open apex 95%

Closed apex 45%

Question 5

What are the symptoms of lateral luxations?

Answer 5

1. Tooth is displaced palatally or lingually NOT axially

2. None mobile since apex is into bone and ankylosis sound when tapped

Question 6

Which tissues are affected in lateral luxation?

Answer 6

1. Communition of bone but if both sides of bone fractured then alveolar bone fracture
2. Severed NVB
3. PDL compressed
4. Possible damage to permanent tooth

Question 7

When would you take radiographs?

Answer 7

2 weeks 
4 weeks
6-8weeks
6 month
1 yr
Yearly for 5 years

Question 8

How do you treat lateral luxations?

Answer 8

1. La
2. Clean and reposition with finger
3. Place flexible splint for 4/52 or longer if bone fractured
4. RCT is indicated if tooth is discoloured and -ve vitality for 3/12 and signs of apical path

Question 9

What is the likely hood of survival following laterals luxations?

Answer 9

Open apex: 95%

Closed apex: 25%