Exam II Material Dr. Pruzansky Appliances 2

Question 1

Unilateral Crossbites: represents an U and L ________ ridge descrepency…so you _______ shift to avoid interferences

Answer 1

transverse ridge…mandibular

Question 2

________ crossbites: TRUE skeletal discrepencies…________ constriction is MORE COMMON than _______ enlargement

Answer 2

BILATERAL…maxillary….mandibular

Question 3

What are the three treatment objectives for a DEEP BITE?

Answer 3

1.Incisor intrusion 2.Molar extrustion 3.incisor proclination

Question 4

What is the MOST COMMON treatment for DEEP BITES?

Answer 4

Molar Extrusion

Question 5

Other ways of molar extrusion are altering bracket heights and leveling what feature?

Answer 5

level the curve of spee

Question 6

What are the two main ways we can correct maxillary dental protrusion?

Answer 6

1.ext upper PMs, retract and upright U dentition 2.Distalize U dentition (headgear, molar distalize, surgery)

Question 7

What are 2 treatment options for maxillary retrognathism (incisors flared or upright), mandibular retrognathism, flared lower incisors?

Answer 7

1.ext U/L PMs and a fxn appliance 2.surgery

Question 8

tha Herbst yo: what are 3 indications for it? (remember its a functional appliance for Class II and open bite)

Answer 8

1.high angle (whatever the fuck that means) 2.deep anterior bite 3.retrognathic mandible and retroclined maxillary incisors

Question 9

What is an advantage of the Twin Force bite corrector?

Answer 9

allow mandibular lateral movements!

Question 10

WTF. the Forsus is attached to an upper _____ and a lower ______

Answer 10

upper HG tube (wtf is that?) and a L archwire

Question 11

Pseudo-Class III malocclusion is MORE PREVALENT than true Class III malocclusion in ___-___ year olds.

Answer 11

8-12 y/o

Question 12

Pseudo class III is characterized by: ______ crossbite, ______ functional shift of mandible, ______ maxillary incisors and _______, spaced mandibular incisors

Answer 12

anterior…forward…retroclined…proclined

Question 13

Correction of WHAT condition in a pseudo-class III pt may Increase maxillary arch perimeter, Decrease risk of gingival recession, and decrease risk of incisal wear

Answer 13

correction of anterior crossbite

Question 14

Which devise may cause extrusion of the maxillary first molars which can cause an open bite?

Answer 14

cervical-pull headgear