Dental Trauma Revision Questions

Question 1

What is the peak period for trauma to permanenet teeth

Answer 1

7-10 years

Question 2

Intra oral exam for truama

Answer 2

Sens test - ethyl chloride and electic pulp (continue for 2 years)
Percussion - duller not indicates a root fracture
Occlusion
Radiographs
Classify trauma

Question 3

Trauma stamp indices include

Answer 3

Tooth
Mobility
Colour
TTP
Sinus
Percussion note
Radiograph
EPT/ELS

Question 4

What does the prognosis of tooth depend on?

Answer 4

Stage of root development 
Type of injury
If PDL is damaged
Time between injury and treatment 
Presence of infection

Question 5

Enamel fracture

Answer 5

bond fragment to tooth or simply grind sharp edges
take 2 PAs to rule out root fracutre or luxation
follow up - 6-8weeks, and 1 year

Question 6

Enamel detntine fracture

Answer 6

Bond fragement to tooth or place composite bandage
Take 2 PAs to rule out root fracture/luxation and search for root fragment in lip
Sens test
Follow up - 6-8 weeks and 1 year, cheek radiohraphs for root development, PA pathology, internal and external inflammotry resorption

Question 7

Enamel dentine pulp fracture

Answer 7

Evaluate size of pulp exposure, time since injury, associated PDL injuries
Pulp cap, partial pulpotomy, full coronal pulpotomy

Question 8

Crown root fracture, no pulp exposure

Answer 8

XLA
fragment removal only and restore
fragment removal and gingivectomy
decoronation
ortho extrusion of apical portion

Question 9

Crown root fracture with pulp exposure

Answer 9

Can be temporised with comp for 2 weeks
XLA
Surgical extrusion
decornation
fragment removal and gingivectomy
ortho extrusion of apical portion

Question 10

Root fracture - apical or middle 1/3

Answer 10

Clean area with water/saline/chx
reposition tooth with digital pressure
splint - flexible splint for 4 weeks 
follow up - 6-8weeks, 6months, 1 year and 5years with radiographs
Soft diet for 1 week and good OH

Question 11

Root fracture - apical/mid fracture and tooth non vital

Answer 11

Extirpate to fracture line
Dress CaOH and MTA just coronal to fracture line
GP root filling to fracture line

Question 12

Root fracture - coronal 1/3 fracture

Answer 12

Requires splinting for 4months with fliexible splint

Question 13

What is seen on an xray for a non vital tooth

Answer 13

PA radiolucenecy
External and internal root resorption 
Ankylosis
Loss of lamina dura
Width of PDL increased