Intro Revision Questions

Question 1

Benefits of ortho

Answer 1

Improve stability
Improve function
Improve dental health
Improve appearance
Reduce risk of trauma
To facilitate other treatment

Question 2

Risks of ort

Answer 2

Decalcification
Relapse
Pain 
Discomfort
Root resorrption 
Loss of tooth vitality 
Failure to complete treatment 
Soft tissue trauma 
candidial infection s

Question 3

Overjet

Answer 3

distance between upper and lower incisors in horinzontal plane
usually 2-4mm

Question 4

Overbite

Answer 4

vertical overlap of upper and lower incisors when viewed anteriorly
reduced = <1/3

Question 5

Anterior open bite

Answer 5

no vertical oveerlap of incisors when buccal segment of teeth are in occlusion

Question 6

Cross bite

Answer 6

discrepnancy in buccal lingual relationship of lower and upper teeth

Question 7

What is crossbite caused by

Answer 7

crowding 
early loss of decidous 2nd molar causes forward movement of 1st molar and 2nd premolar erupts palatally 
retention of primary tooth
cleft lip and palate
eruption of supernumrary tooth
digit or thumb sucking habits