Ortho II - ORTHODONTIC DIAGNOSIS pt.2

MENTOLABIAL SULCUS: Class I

• Normal

• Shallow

• Deep

MENTOLABIAL SULCUS: Bimaxillary protrusion

• Normal

• Shallow

• Deep

MENTOLABIAL SULCUS: Angle's class II division 2 malocclusion

• Normal

• Shallow

• Deep

Normally, mentalis muscle contraction is not seen at rest.

• True

• False

Hyperactivity of the mentalis muscle may be seen in

• class II division 1 malocclusion

• Thumb sucking

• Bruxism

• Clenching

Prominent chin is usually seen in

• class II malocclusions

• class III malocclusion

• class I malocclusions

wrinkled, folded, or crumpled chin.

• PUCKERING CHIN

• NASOLABIAL ANGLE

• MACROGLOSSIA

• MICROGLOSSIA

- Indicative of hyperactive mentalis muscle activity

• PUCKERING CHIN

• NASOLABIAL ANGLE

• MACROGLOSSIA

• MICROGLOSSIA

is the angle formed between the lower border of the nose and a line connecting the intersection of the nose and upper lip with the tip of the upper lip (Labiale superius)

• PUCKERING CHIN

• NASOLABIAL ANGLE

• MACROGLOSSIA

• MICROGLOSSIA

Normally, the nasolabial angle ranges from __-___ degrees

• 90-110 degrees

• 80-100 degrees

• 90-100 degrees

• 100-110 degres