Overjet Reduction Flashcards
1
Q
What is an average overjet?
A
2-4mm
2
Q
What is the definition of overjet?
A
The extent of horizontal overlap of maxillary teeth over mandibular teeth
3
Q
What are the causes of an increased overjet?
A
- skeletal
- dental - proclined upper, retroclined lower
- soft tissues - lip trap
- habits
4
Q
What are advantages of sliding mechanics?
A
- minimal wire bending
- less time consuming
- easier to maintain arch form compared with closing loops
5
Q
What are the disadvantages of sliding mechanics?
A
- high friction compared with closing loops
- can have uncontrolled tipping if on a light wire
- loss of anchorage
