lecture 2

Question 1

balance of forces keep the teeth and jaws in their position

*duration of force more important than magnitude

Answer 1

equilibrium theory proffitt

Question 2

what causes unfavorable dentoalveolar growth

Answer 2

mouth breathing and sleep apnea

Question 3

what are 5 dental effects of mouth breathing

Answer 3

1. anterior open bite
2. maxillary incisor protrusion
3. mandibular incisor protrusion
4. narrowing of the maxilla
5. mandible retrusion?

Question 4

does not respond to tension or pressure

Answer 4

growth center

Question 5

sensitive to mechanical stimulations (tension, pressure)

Answer 5

growth sites

Question 6

-epiphysis of long bones
-responsible for growth of long bones
-cells are layered in precise manner
-transplanted cell will continue to grow (chemical mediators)

Answer 6

growth centers

Question 7

-mandibular condyles, sutures, tuberosity
-immature fibrocartilage cells (not layered)
-stop functioning if transplanted

Answer 7

growth sites

Question 8

amount of growth is much lower in

Answer 8

growth site

Question 9

growth ____ are genetically programmed and less affected by the environment

Answer 9

growth centers