Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

DMD 6375 Ortho > Growth and Dev II > Flashcards

Growth and Dev II Flashcards

1
Q

What is interstitial growth?

A

Growth of soft tissue, or cartilaginous precursor.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is Directional appositional (periosteum) growth?

A

Growth of bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

the cartilage in the prenatal skull that is the center of ossification is?

A

the chondrocranium.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is endochondral ossification? Sites?

A

Calcification of cartilage plate into bone.

  • Cranial base
  • Mandibular condyle
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Anterior cranial base is completed at what age?

A

10

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Posterior cranial base is completed at what age?

A

20

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the process of mandibular condyle development?

A
  • Layer of fibrocartilage cover surface.
  • Cartilage cells proliferate and mature.
  • These cells turn into centers of bone ossification.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is intramembraneous ossification? Sites?

A

Cell in periosteum directly secrete bone matrix without cartilage intermediate.

  • Cranial vault
  • Maxilla
  • Mandible (except condyle)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

At what age in utero do the condyle cartilage and body of mandible fuse?

A

4 months.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the relationship of the chondrocranium and syncondrosis?

A

Syncondrosis is a remnant of the chondrocranium.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is cortical shift? Does thickness of bone change?

A

Deposition of bone on periosteal surface and resorption of bone on endosteal surface resulting in relocation of bone.

Thickness of bone does not change because relocation of bone is equal and balanced.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is relocation?

A

Bodily movement of the structure as a result of growth. Every part of the structure is moving the same amount and in the same direction.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

With relocation, if anterior is being resorbed, where is bone being deposited?

A

Posterior.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is remodeling?

A

Apposition and resportion of bone in different areas of bone.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is primary displacement?

A

Movement of bone to new location as a result of bone growth.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is secondary displacement?

A

Movement of bone to new location as a result of displacement of other bones or soft tissue.

17
Q

Nasomaxillary complex is also known as the?

A

Midface.

18
Q

Where does apposition of bones in cranial vault occur?

A

Occurs at the cranial sutures, and outer and inner surfaces of bones.

19
Q

What are the 3 synchondrosis found at cranial base?

A
  • Spheno-occipital
  • inter-sphenoid
  • spheno-ethmoid
20
Q

What is the passive growth of nasomaxillary complex?

A

Growth of cranial base pushes maxilla forward.

21
Q

What is the active growth of nasomaxillary complex?

A
  • Bone apposition at sutures that coneect maxilla to cranium.
  • Growth of soft tissue and sinus spaces
  • Surface remodeling
  • Bone added to maxillary tuberosity.
22
Q

Bone apposition on the maxillary tuberosity is for what?

A

Erupting molars.

23
Q

What is the overall direction of growth of nasomaxillary complex?

A

Downward and forward.

24
Q

Displacement of maxilla due to growth of cranial base growth stops at what age? growth potential is in what after this age?

A

Age 6.

Growth potential is in the ossification of synchodroses after this age.

25
Q

Bone is removed where in the nasomaxillary complex even though this surface is growing forward? Added where?

A

Bone is removed from anterior surface. Bone is added in posterior surface.

26
Q

In terms of the palate, what is different?

A

Bone is actually being deposited on the oral side and resorbed on the nasal side.

27
Q

What is the growth pattern of the mandible? This allows it to translate?

A

Upward and backward.

Translates downward and forward.

28
Q

What is the major mechanisms of mandibular growth?

A

Bone apposition in posterior ramus.

29
Q

What are the characteristics of having a short face? (Rotation, anterior vs posterior, plane, bite)

A
  • Counterclockwise mandibular rotation
  • Greater posterior growth
  • Low plane angle
  • Deep bite
30
Q

What are the characteristics of having a long face? (Rotation, anterior vs posterior, plane, bite)

A
  • Clockwise man rotation
  • Greater anterior growth
  • Steep plane angle
  • Anterior open bite.

DMD 6375 Ortho (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions