Growth Predictions- FINAL

Question 1

When there a good ratio between the height and width of your face:

Answer 1

normocephalic

Question 2

When there is a longer length of the face in relation to the width of the face is much longer:

Answer 2

dolychocephalic

Question 3

Dolychocephalic patients tend to be harder to:

Answer 3

predict growth

Question 4

Brachiocephalic (patients that show with a class II division II malocclusion)- a very square face- meaning the:

Answer 4

height to width ratio are almost equal (B. Mlekus)

Question 5

The easiest predictability of growth is with ___ patients:

Answer 5

Normochepaplic

Question 6

Angle that is a good growth predictor as it tends to stay stable throughout life:

Answer 6

mandibular plane angle

Question 7

____ axis is a good predictor of growth

Answer 7

Y-axis

Question 8

Bjork studies state that: “patients tend to keep growth pattern _____”

Answer 8

patients tend to keep growth pattern constant (if you start at normocephalic you tend to stay that way)

Question 9

The mandibular plane line creates an angle with

Answer 9

the anterior aspect of the cranial base

Question 10

The angle between the mandibular plane line and the anterior aspect of the cranial base=

Answer 10

mandibular plane angle

Question 11

The more normal the mandibular plane angle is, the more:

Answer 11

predictable the growth pattern will be

Question 12

From the cranial base the face will grow:

Answer 12

down & forward toward the maxilla

Question 13

The center of the cranial vault:

Answer 13

sella

Question 14

In a class III malocclusion we try to minimize the growth of the ____ and maximize the growth of the ___.

What about for class II?

Answer 14

mandible; maxilla

Opposite

Question 15

What can we assume with a MP angle and Y-axis that are not normal:

Answer 15

altered growth (Not predictable)

Question 16

With growth enhancement, we are typically looking at:

Answer 16

a class II or III malocclusion

Question 17

For a class III malocclusion, we try to increase ____ length.

For a class II malocclusion, we try to increase ___ length.

Answer 17

class III= maxilla

class II= mandible

Question 18

Can we modify growth?

Answer 18

yes- but not as much as we wish

Question 19

Is chronological age a good predictor?

Answer 19

yes- but take it with a grain of salt

Question 20

When is the window of opportunity to modify growth?

Answer 20

9-13

Question 21

Growth spurts for girls:

Answer 21

10-12

Question 22

Growth spurts for boys

Answer 22

12-14 (until 17)

Question 23

In order to modify growth, you must first:

Answer 23

experience growth

Question 24

What are two factors to take into consideration with growth spurts?

Answer 24

1. timing of correction
2. length of treatment

Question 25

The functional matrix considers that growth is determined by:

Answer 25

genetics and epigenetics

Question 26

Stimulation of periostea growth by alteration of neuromuscular environment. This appliance will stimulate periosteal pull and bone apposition.

Answer 26

frankl appliance

Question 27

The frankl appliance is considered a ____ appliance because it is not tied down to the dentition.

Answer 27

Not tooth borne appliance

Question 28

The Frankle appliance rational is based on ____ because you are changing ___.

Answer 28

the functional matrix; the environment

Question 29

What type of growth does the Frankie appliance harvest:

Answer 29

intramembranous

Question 30

Maxillary expander appliance modifies the growth at the:

Answer 30

mid-palatal suture (above the teeth)

Question 31

Up to how many mm does a maxillary expander expand the palate transversely? How much can it expand the mid-palatal suture?

Answer 31

4-5mm 5-6 mm (on a good day)

Question 32

A maxillary expander is a ___ appliance

Answer 32

orthopedic

Question 33

How many mm per day does a maxillary palate expander allow?

Answer 33

0.25mm per day (1/4 of a turn) 28-30 activations

Question 34

Functional cross-bite must be corrected at:

Answer 34

a young age

Question 35

When correcting a functional cross-bite, if the side that contains the cross bite is corrected, what happens to the other side?

Answer 35

the other side will become edge-to-edge

Question 36

anteroposterior dimension is treated by:

Answer 36

Class II correction

Question 37

For true retrognatism (class II) there is:

Answer 37

NO Growth

Question 38

True retrognatism is purely:

Answer 38

skeletal & genetic

Question 39

For anteroposterior dimension treated by class II correction, what must be considered?

Answer 39

1. the amount of dentoalveolar compensations 2. growth potential (growth prediction)

Question 40

Can true retrognatism be corrected?

Answer 40

no

Question 41

Growth predications should take into account:

Answer 41

- age - gender - genetics

Question 42

Slows down growth at the tuberosity level:

Answer 42

head gear

Question 43

Head gear acts at the:

Answer 43

growth site

Question 44

Head gear allows the ___ to "catch up"

Answer 44

mandible

Question 45

Head gear allows the mandible to catch up in the ____ plane

Answer 45

anterior bite

Question 46

What follows treatment with headgear?

Answer 46

normal growth pattern

Question 47

The tuberosity (where head gear acts) is a:

Answer 47

growth site

Question 48

Where does head gear slow the growth and what does this allow for?

Answer 48

slows growth of maxilla at tuberosity level allowing the mandible to catch up