Oral Embryology And History (Chapter 8 Mda)

Front 1

The study of prenatal development

Back 1

Embryology

Front 2

The study of the structure and function of tissues on a microscopic level

Back 2

Histology

Front 3

Begins at the start of pregnancy and continues until birth

Back 3

Prenatal Development

Front 4

Extends from the beginning of the second week to the end of the eight week

Back 4

Embryonic Period

Front 5

The union of the male sperm and the ovum of the female

Back 5

Conception

Front 6

Permanent teeth with primary predecessors, examples are the anterior teeth and premolars

Back 6

Succedaneous Teeth

Front 7

The tissues that support the teeth in the alveolar bone

Back 7

Periodontium

Front 8

Enamel-forming cells are called

Back 8

Ameloblasts

Front 9

Dentin-forming cells are called

Back 9

Odontoblasts

Front 10

Cementum-forming cells are called

Back 10

Cementoblasts

Front 11

Cells that resorb cementum are called

Back 11

Cementoclasts

Front 12

Cells that resorb bone are called

Back 12

Osteoclasts

Front 13

The normal process of shedding primary teeth

Back 13

Exfoliation

Front 14

Oral mucosa is made up of

Back 14

Stratified Squamous Epithelium

Front 15

Oral mucosa that covers the hard palate, dorsum of the tongue, and gingiva is

Back 15

Masticatory Mucosa

Front 16

What is the first period of prenatal development

Back 16

Preimplantation Period

Front 17

Which period of prenatal development is the most critical

Back 17

Embryonic Period

Front 18

The embryonic layer that differentiates into cartilage, bones, and muscles

Back 18

Mesoderm

Front 19

Which branchial arch forms the bones, muscles, and nerves of the face and lower lip

Back 19

First

Front 20

Which brachial arch forms the side and front of the next

Back 20

Second

Front 21

The hard and soft palates are formed by the union of the primary and secondary

Back 21

Palates

Front 22

When does the development of the human face occur

Back 22

Fourth to eighth weeks

Front 23

At birth, how many teeth are in some stage of development

Back 23

44

Front 24

What factors can have a prenatal influence on dental development

Back 24

Genetics

Environment

Front 25

Name the process for the laying down or adding of bone

Back 25

Deposition

Front 26

Name the process of bone loss or removal

Back 26

Resorption

Front 27

Growth, calcification, and ______ are the 3 primary periods in tooth formation

Back 27

Eruption

Front 28

The final stage in the growth period is the

Back 28

Bell Stage

Front 29

What is formed in the occlusal surface when multiple cusps join together

Back 29

Fissure and Pit

Front 30

What is the name of the process by which teeth move into a functional position in the oral cavity

Back 30

Eruption

Front 31

The portion of a tooth that is visible in the mouth is the

Back 31

Clinical Crown

Front 32

The cementoenamel junction is located

Back 32

Between the cementum and the enamel

Front 33

The hardest substance in the human body is

Back 33

Enamel

Front 34

What is the name of the largest mineral component in enamel

Back 34

Calcium

Front 35

Pain is transmitted through dentin by the way of

Back 35

Dental Fibers

Front 36

The type of dentin that is also know as reparative dentin is

Back 36

Tertiary Dentin

Front 37

The pulp is make up of

Back 37

Blood Vessels and Nerves

Front 38

What type of cells form the intercellular substance of the pulp

Back 38

Fibroblasts

Front 39

The primary function of the periodontal ligament is

Back 39

To support the tooth

To maintain the tooth

To retain the tooth

Front 40

Which type of oral mucosa forms the inside of the cheeks, lips, and soft palate

Back 40

Lining Mucosa

Front 41

In which stage of tooth development do the cells of the tooth grow and increase in number

Back 41

Cap Stage

Front 42

What is the stomodeum in a developing human embryo

Back 42

Primitive Mouth

Front 43

When the embryo is 5 to 6 weeks old, the first signs of tooth development are found in the

Back 43

Lower Anterior

Front 44

From what embryonic layer does the cementum form

Back 44

Mesoderm

Front 45

What portion of the tooth germ is directly responsible for dentin formation

Back 45

Dental Papilla

Front 46

Beginning the fifth week the embryo is approximately how long

Back 46

5 mm

Front 47

Which is the cause of staining of primary teeth

Back 47

Tetracycline

Front 48

The stages of prenatal development are

Back 48

Preimplantation, Embryonic, and Fetal Periods

Front 49

By which does the enamel of the tooth develop

Back 49

Enamel Organ

Front 50

During which stage do the teeth frown and increase in number

Back 50

Proliferation (Cap Stage)

Front 51

What is the first stage of development

Back 51

Initiation (Bud Stage)

Front 52

Those permanent teeth which replace the primary teeth are called

Back 52

Succedaneous

Front 53

In which stage do the cells become specialized

Back 53

Histodifferentiation (Bell Stage)

Front 54

Each tooth develops from a

Back 54

Tooth Bud

Front 55

During which developmental period does the tooth structure become hard

Back 55

Calcification

Front 56

The wearing on the surfaces of the tooth during normal chewing is called

Back 56

Attrition

Front 57

The wearing away or loss of tooth structure y chemical process without known bacterial action is called

Back 57

Bulimia

Front 58

At what age does the primary mandibular first molar usually erupt

Back 58

12 Months

Front 59

Amber colored teeth which wear down quickly after eruption are due to a hereditary condition know as

Back 59

Dentinogenesis Imperfecta

Front 60

Congenital syphilis may result in peg-shaped teeth known as

Back 60

Hutchinson Incisor

Front 61

What is the term used to describe abnormally large teeth

Back 61

Macrodontia

Front 62

Supernumerary teeth are

Back 62

Extra Teeth

Front 63

When one tooth follicle forms two teeth it is known as

Back 63

Gemination

Front 64

What is the name of teeth that re present at birth

Back 64

Natal Teeth

Front 65

Impaction is

Back 65

Any tooth the remains unerupted in the jaws beyond the time it would normally erupt

Front 66

What is the term used to describe abnormally small teeth

Back 66

Microdontia

Front 67

The wearing away of the tooth surface by mechanical process is

Back 67

Abrasion

Front 68

The wearing away of the tooth surface by clenching or grinding your teeth is

Back 68

Bruxism

Front 69

The part of the pulp that lies within the crown portion of the pulp is called

Back 69

Coronal Pulp

Front 70

What is the thin, compact bone lining the alveolar socket

Back 70

Lamina Dura

Front 71

An extension of the free gingiva is called the

Back 71

Interdental papilla

Front 72

The space between the free gingiva and the tooth is known as the

Back 72

Gingival Sulcus

Front 73

What is the term used to describe the cavity within the alveolar process in which the root of a tooth is held by the periodontal ligament

Back 73

Alveolar Socket

Front 74

This structure anchors teeth within their sockets and reduces stress during chewing

Back 74

Periodontal Fibers

Front 75

The root covering of the tooth is known as

Back 75

Cementum

Front 76

The growth period is divided into what 3 stages

Back 76

Bud, Cap, and Bell