Ortho Diagnosis

Question 1

Anterior open bite or large gap between incisors can cause what speech problems?

Answer 1

Lisp

Question 2

Irregular incisors, or especially lingual position of max incisors causes what in speech?

Answer 2

Difficulty in production (t and D).

Question 3

What is edward angle classification? Class I, II, III malocclusion.

Answer 3

-Class I malocclusion: Normal molar relationship, but teeth crowed or rotated.. -Class II Mal: Lower molar distal to upper molar -Class III: Lower molar mesial to upper molar.

Question 4

WHat are these molar relationships?

Answer 4

A= Class I

B= Class II 1/4 cusp

C= Class II 1/2 cusp

D= Class II Full cusp

Question 5

What are some causes of excessive gingival display?

Answer 5

• Excessive lower face height
• Incomplete passive eruption
• Short upper lip

Question 6

What is Bimaxillary Dentoalveolar Protrusion? 3 clinical feature?

Answer 6

Forward placement of teeth resulting in prominant lips.

1. Lip Incompetence (4 mm at rest)
2. Lip strain
3. Prominant lips

Question 7

What is bolton analysis?

Answer 7

Sum of M-D width of man perm anterior teeth divided by max counterpart, and vice versa..

Question 8

What is ideal height-width relationship?

Answer 8

80% Height=Width