Trauma- Restoration

Question 0

What do you use as the cement in crown re attachment?

Answer 0

Composite

Question 1

What are the treatment options for an enamel dentine fracture?

Answer 1

1. Composite buildup with GIC liner

2. Crown reattachment

Question 2

T/F you also need a GIC liner in the crown reattachment?

Answer 2

T

Question 3

What are the options for discoloured non vital teeth?

Answer 3

Non vital bleaching

Question 4

Why do non vital teeth become discoloured?

Answer 4

Hb and tissue breakdown products diffuse through the dentine tubules

Question 5

What are the indications to non vital bleaching?

Answer 5

Discouloured teeth
Well condensed GP
No clinical or radiological signs of Periapical disease

Question 6

What do you need for non vital bleaching?

Answer 6

Rubber dam
GIC
37% phosphoric acid 
Bleaching agent eg sodium perforate of HP acid
Cotton wool
White GP
Composite resin
Non setting CaOH

Question 7

How do you perform non vital bleaching?

Answer 7

1. Take pre op PA and colour shade of tooth
2. Rubber dam and access GP
3. Remove 1mm of GO down to level of dento gingival level
4. 1mm cement over GP
5. Etch pulp and wash
6. Place bleaching agent soacked cotton wool into chamber
7. Place dry cotton wool over and seal.
8. Repeat at weekly intervals to a mad of 10 until tooth over bleached slightly but if no changes after third try abandon
9. Place non setting CaOH in chamber for 2 weeks and seal
   Restore with white GP and composite

Question 8

What is the purpose of placing the cement over the GP?

Answer 8

To prevent bleach seeping out and inducing cervical resorption

Question 9

What is the purpose of placing CaOH in the chamber prior to final restoration?

Answer 9

This is to calm down any inflammation that may have occurred in pdl

Question 10

How do you perform vital bleaching?

Answer 10

Two types

Chair side and night guard

Question 11

What are the options for displaced teeth?

Answer 11

Reposition
Auto transplant
Replacement

Question 12

When can auto transplant be considered?

Answer 12

Reposition an ectopic tooth

Replacement of an un-restorable tooth with a redundant member of the dentition

Question 13

What are the 6 stages to auto transplant?

Answer 13

1. Asses donor site
2. A traumatically extract donor tooth
3. Prepare recipient site
4. Transplantion
5. Splint
6. Root terra transplant tooth if req

Question 14

What is usually given prior to auto transplant surgery?

Answer 14

Prophylactic AB usually penicillin as this has shown to reduce root resorption

Question 15

What does assessment of donor tooth and recipient site entail?

Answer 15

Donor tooth: clinical and radiograph analysis and caries assessment and dimensions measured. Ideally 2/3 root complete (open apex), not too curved at apex as likely to become damaged in the process

Recipient site: radiograph and clinically. Look at space

Question 16

How does xla a tooth for autotransplant differ?

Answer 16

1. Severe gingival fibres first

2. Forceps only on crown

Question 17

What do you need to be careful with when splinting the transplanted tooth?

Answer 17

Not splint for too long as this will lead to possibility of ankylosis
Usually paint for three weeks only

Question 18

When can teeth undergone transplant be moved orthodontic ally?

Answer 18

Following 3 months after placement and completion writhin 9 mths