Dental Anatomy: Mandible at Different Ages

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Questions and Answers

What happens to the segmoid notch when the condyle and coronoid processes increase in length?

It becomes shallower

It becomes narrower

It becomes deeper (correct)

It remains the same

What is the relative position of the condyle compared to the coronoid?

The condyle is at the same level as the coronoid

The condyle is higher than the coronoid

The condyle is variable in position relative to the coronoid

The condyle is lower than the coronoid (correct)

What is the effect of the condyle and coronoid processes increasing in length on the overall structure?

The condyle and coronoid processes fuse

The overall structure remains unchanged

The segmoid notch deepens and the condyle remains lower (correct)

The segmoid notch becomes more shallow

What can be inferred about the relationship between the condyle and coronoid processes?

The coronoid process is always longer than the condyle Signup and view all the answers

What is the primary consequence of the condyle and coronoid processes increasing in length?

The segmoid notch deepens Signup and view all the answers

At what age does the ramus of the adult mandible stop growing?

20 years Signup and view all the answers

What is the relationship between the condyle and the coronoid process in the adult mandible?

The condyle is at a higher level than the coronoid process Signup and view all the answers

Which of the following growth centers is responsible for the growth of the ramus?

Both the condyle and coronoid process Signup and view all the answers

What is the primary function of the condyle in the adult mandible?

To facilitate the growth of the ramus Signup and view all the answers

What is the significance of the coronoid process in the adult mandible?

It is a secondary growth center Signup and view all the answers

What is the primary objective of the lecture on the mandible at different ages?

To recognize the different age changes in the mandible Signup and view all the answers

What is the expected outcome of the student after the lecture on the mandible at different ages?

To be able to compare the mandible at different ages Signup and view all the answers

What is the title of the lecture presented by Professor Rabab Mubarak?

7- Mandible at Different Ages Signup and view all the answers

What is the profession of the presenter of the lecture?

Professor of Oral Biology Signup and view all the answers

In which semester is the lecture on the mandible at different ages?

2nd Semester Signup and view all the answers

What is the orientation of the condyle relative to the coronoid process?

The condyle is at a lower level than the coronoid process Signup and view all the answers

What is the result of the change in the segmoid notch?

The segmoid notch becomes shallower Signup and view all the answers

What is the relationship between the condyle and the coronoid process?

The condyle is posterior to the coronoid process Signup and view all the answers

What is the direction of the condyle's bend?

The condyle bends backward Signup and view all the answers

What is the effect of the condyle's position on the surrounding anatomy?

The surrounding anatomy is unaffected Signup and view all the answers

What is the mandibular angle at birth?

170 degrees Signup and view all the answers

At which age is the sigmoid notch shallow?

At birth and old age Signup and view all the answers

What is the relative position of the mental foramen at childhood?

Slightly away from the lower border Signup and view all the answers

At which age is the condyle and coronoid process in the higher level?

At adulthood Signup and view all the answers

What is the mandibular angle at old age?

140 degrees Signup and view all the answers

Study Notes

Mandible at Different Ages

By the end of this lecture, students will be able to:
- Mention the anatomy of the mandible
- Recognize different age changes
- Compare between mandible at different ages
- Identify natural mandibles at different ages

Mandible Development

The ramus of the adult mandible grows till the age of 20 years through growth centers in the condyle and coronoid
The condyle becomes at a higher level than the coronoid process
The condyle bends backward to be in a lower level than the coronoid process
The sigmoid notch becomes shallower with age

Comparison of Mandible at Different Ages

At Birth
- Mandibular angle: 170
- Sigmoid notch: very shallow
- Mental foramen: near lower border
- Condyle and coronoid process: in lower level
At Childhood (6 years)
- Mandibular angle: 140
- Sigmoid notch: shallow
- Mental foramen: slightly away from lower border
- Condyle and coronoid process: slightly in lower level
At Adult
- Mandibular angle: 120
- Sigmoid notch: deep
- Mental foramen: midway and related to lower 5
- Condyle and coronoid process: in higher level
At Old Age
- Mandibular angle: 140
- Sigmoid notch: shallow
- Mental foramen: near upper border
- Condyle and coronoid process: slightly in lower level

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Description

This quiz covers the anatomy of the mandible and its changes across different ages. Students will be able to recognize and compare the differences in the mandible at various stages of life.