Introduction to OS

Question 1

Why remove teeth due to ST trauma?

Answer 1

May be traumatising the opposing operculum of PE L8

Teeth may be buccally placed and traumatising cheek

Question 2

Why remove supernumerary tooth?

Answer 2

If no path - can leave and monitor
If pathological - can impede eruption, displace permanent teeth or cause root resorption
Hyperdontia

Question 3

What are the different type of supernumerary teeth?

Answer 3

Conical
Tuberculate - barrel shaped
Supplemental
Odontome - tooth like mass (complex,compound)

Question 4

Why remove impacted teeth?

Answer 4

Some teeth do not reach functional occlusion - lack of place
Asymptomatic and can be monitored
Potential to cause root resorption, bone loss around adjacent teeth, cystic change
Pericoronitis
Other common impacted teeth - upper canines

Question 5

Which teeth are usually removed prior to orthognathic surgery?

Answer 5

8s to allow for predictable movements to be made

Question 6

What is the type of operation called to correct class 3s?

Answer 6

Saggital split osteotomies

Question 7

Why are teeth removed as part of systemic disease?

Answer 7

Pre-radiotherapy in head and neck cancer patients - ORN
Kills blood vessels in bone therefore lack of healing
Pre-bisphosphonates - MRONJ