Week 1

Question 1

Define Growth

Answer 1

An anatomical phenomenon which involves an increase in size or number

Question 2

Define Development

Answer 2

A physiological phenomenon which involves an increase in organization, complexity, or specialization at the expense of a loss in potential.

Question 3

Does the mandible grow or develop?

Answer 3

Both. It grows and develops by changing its position and shape via translation and remodeling. Results in higher specialization for the functions of mastication and speech,

Question 4

Cephalocaudal gradient of growth

Answer 4

throughout development, the body gains more of total proportions.

Question 5

What has the least amount of growth after birth

Answer 5

Brain case

Question 6

What tissue is most similar to Maxillary tissue with regards to growth rates

Answer 6

Neural tissue

Question 7

When does a girls growth usually stop.

Answer 7

At menarche

Question 8

Skeletal Growth type for cranial base

Answer 8

Interstitial (inside tissues)

/Endochondral

Question 9

Skeletal Growth type for cranial vault

Answer 9

Appositional (occurs at surface of bones)

Question 10

Difference between bone and cartilage growth

Answer 10

Cartilage can grow interstitially but bone cant

Question 11

Intramembranous growth

Answer 11

Secretion of bone matrix within and between connective tissue membranes

Question 12

Formation of mandible

Answer 12

Mandible forms by intramembranous bone formation just lateral to meckel’s cartilage

Question 13

Nasomaxillary Complex

Answer 13

Formed entirely by intramembranous ossification. No cartilaginous precurser. Appositional growth and surface remodeling.

Question 14

Translation of Maxilla

Answer 14

Translated downward and forward. Apposition of bone occurs at circum-maxillary sutures.

Question 15

Remodeling of maxilla

Answer 15

• Bone is resorbed in the floor of the nose

- Apposition of bone occurs at palate and alveolar process

Question 16

Direction of palate growth

Answer 16

Moves downward and widens transversely

Question 17

Mandible Growth

Answer 17

Growth occurs at the cartilage that covers the mandibular condyle. All other surfaces grow by surface apposition and remodeling.

Question 18

Translation of Mandible

Answer 18

Mandible is translated downward and forward.

Question 19

Principal sites of growth of mandible

Answer 19

posterior surface of ramus and the condylar and coronoid processes

Question 20

Growth Site

Answer 20

Location at which growth occurs

Question 21

Growth Center

Answer 21

Location at which independent growth occurs

Question 22

In the mandibular condyle a growth center or site?

Answer 22

Growth site

Question 23

Mandibular growth reflects?

Answer 23

Reflects general growth curve.

Question 24

Mandible vs maxilla growth

Answer 24

Mandible grows longer and more.

Question 25

Sequence of Growth

Answer 25

- Width stops before length before height - width stops before growth spurt except for alveolar arches widen in areas of molar eruption - Length and Height increase through puberty

Question 26

Incisor Liability

Answer 26

Difference in width between deciduous and permanent teeth. | 2-3.5 per quadrant

Question 27

Developmental spaces

Answer 27

Spaces between incisors in primary dentition

Question 28

Primate Space

Answer 28

Max: Mesial of Canine Mand: Distal of Canine

Question 29

Location of Perm. Incisors during eruption

Answer 29

Lingual to Primary incisors.( Max) Erupt with more labial inclination(Mand almost same orientation)

Question 30

Leeway space

Answer 30

Difference in M-D width between primary canine/molars and perm. canine/premolars (More in mandible) molars will move mesially into this space

Question 31

E-Space

Answer 31

Difference in M-D width between primary 2nd molars and perm 2nd premolars

Question 32

Mesial Step

Answer 32

Leads to Class I

Question 33

Flush Terminal Plane

Answer 33

Leads to Class II

Question 34

Distal Step

Answer 34

Leads to Class II

Question 35

Maxillary Arch Diastema

Answer 35

Good news

Question 36

Early Mesial Shift

Answer 36

Primate space on the mandibular arch is closed | -flush terminal to mesial shift

Question 37

Late mesial shift

Answer 37

E space is filled on mandibular molars to form class I

Question 38

Differential growth

Answer 38

Mandible grows more than maxilla. Can result in formation of Class I from Flush terminal plane