module 4 review

Question 1

which diagnostic record is not taken as standard ortho decords

Answer 1

1) we take photos, lateral ceph, clinical exams, pano, study model, CBCT (modern)
2) we want to understand how the face grows and the angles and measurements

Question 2

when to do ortho treatment or mandibular growth modification

Answer 2

1) CVM 2-3
- pubertal growth spurt

Question 3

ideal tooth lip relationship on full smile

Answer 3

1) 70-100% incisal display and 1-2 mm gingival display for females

Question 4

posterior divergence is

Answer 4

class II

Question 5

significant convex profile is

Answer 5

class II

Question 6

incisal show at rest

Answer 6

1-2 mm

Question 7

smile arc is

Answer 7

the upper incisal edges to follow the lower lip

Question 8

proportionality of teeth

Answer 8

1) width of upper central incisor is 4/5 of the height (80%)

Question 9

golden proportion of teeth

Answer 9

1) ratio of the upper front teeth should be
- 60% smaller than the larger adjacent tooth

Question 10

sella

Answer 10

1) is located by visual inspection, geometric center of the pituitary fossa, very important for cephalometric analyses, landmark point

2) it is NOT a bilateral anatomical structure

Question 11

cephalometric measurements

Answer 11

1) are compared to a derive set of norms
2) vary based on ethnic

Question 12

you cannot determine from a ceph

Answer 12

1) if you require maxillary arch expansion