Clarifications Flashcards
1
Q
Leeway space
A
Mesiodistal widths of crowns where the primary 1st and 2nd molar is more in width than the permanent teeth
(C+D+E) - (3+4+5)
2
Q
Leeway space of upper arch
A
1.3-1.5 mm per side
3
Q
Leeway space of lower arch
A
2.5 - 3.1 mm per side
4
Q
Incisor liability
A
The space difference between the amount of space needed for the permanent incisors because the permanent incisors are wider than the primary incisors
5
Q
Incisor liability in the maxillary arch
A
7 mm
6
Q
Incisor liabilty in mandibular arch
A
6 mm
7
Q
Early mesial shift
A
Occurs in patients with spaced primary dentition and flush terminal plane, the eruption of permanent mandibular causes the distal space to primary canines to close and transforms it into a class I.
