Chapter 9 Topic 4

Front 1

Adjacent

Back 1

Next to, as in the teeth are adjacent to each other

Front 2

Agenesis

Back 2

occurs when the tooth buds do not form

Front 3

Anatomical crown

Back 3

Portion of the tooth covered with enamel

Front 4

Anatomical root

Back 4

The portion of the tooth covered with cementum

Front 5

Anomaly

Back 5

Extreme variation from the norm

Front 6

Apex

Back 6

At or near the end of the root

Front 7

Apical foramen

Back 7

An opening in the end of the tooth through which nerve and blood vessels enter

Front 8

Apical third

Back 8

The root is divided into imaginary thirds with the area nearest the apex as the _______.

Front 9

Bicuspid

Back 9

The premolars are often called what??

Front 10

Bifurcated

Back 10

One tooth with two roots

Front 11

Buccal

Back 11

The surface of the posterior tooth that is toward the cheeks

Front 12

Buccal groove

Back 12

A linear depression forming a groove that extends from the middle of the buccal surface to the occlusal surface if the tooth

Front 13

Canine

Back 13

cuspid; third tooth from the midline, bulkier and aids in tearing food

Front 14

Central incisor

Back 14

The first tooth starting from the midline;

used to cut or bite the food that is ingested

Front 15

Cervical line

Back 15

Where the anatomical crown and root join

Front 16

Cervical third

Back 16

The area on the crown of the tooth that is closest to the cervical area ( or to the gingiva) is called the cervical third of the tooth.

Front 17

Cingulum

Back 17

Convex area on the lingual surface of the anterior teeth, near the gingiva

Front 18

Clinical crown

Back 18

Portion of the crown that is visible in the mouth

Front 19

Clinical root

Back 19

The portion of the root seen in the oral cavity ( for example, where the gingiva has receded.)

Front 20

Concave

Back 20

recessed or indented. ( cave like )

Front 21

Contact area

Back 21

Where the proximal sides ( nearer to the center) of two teeth come together and touch

Front 22

Convex

Back 22

Bulge or curves

Front 23

Crown

Back 23

The highest part of the tooth

Front 24

Cusp of carabelli

Back 24

Fifth cusp ( pointed or rounded mound of the crown on the tooth) located on the mesial lingual surface of most maxillary first molar

Front 25

Cusps

Back 25

Pointed or rounded mound on the crown of the tooth

Front 26

Deciduous

Back 26

The primary teeth

Front 27

Dentition

Back 27

Natural teeth in position

Front 28

Developmental groove

Back 28

Groove formed by the uniting of lobes (separate parts that come together to form a tooth) during development if the crown of the tooth

Front 29

Distal

Back 29

Surface away from the midline

Front 30

Exfoliated

Back 30

Shed from the oral cavity

Front 31

Fissure

Back 31

Developmental groove resulting from an imperfect union where the lobes come together

Front 32

Fossa

Back 32

A shallow rounded or angular depression

Front 33

Furcation

Back 33

Dividing point of a multirooted tooth

Front 34

Imbrication lines

Back 34

Small curved lines running parallel to the CEJ near the gingival area of the labial of the crown of a tooth

Front 35

Incisal third

Back 35

The crown of the tooth that is nearest the incisal edge on the anterior tooth

Front 36

Labial

Back 36

"Outside" surface, which is toward the lips

Front 37

Lateral incisor

Back 37

The second tooth from the midline

-used for cutting

Front 38

Lingual

Back 38

"Inside" surface, which is toward the tongue. In the maxillary arch, the lingual side may be referred to as the palatal surface.

Front 39

Lobes

Back 39

Separate parts that come together to form a tooth.

Front 40

Mamelons

Back 40

Three bulges on the incisal edge of the newly erupted central incisor. ( normally disappear from normal wear )

Front 41

Mandibular arch

Back 41

The lower teeth

Front 42

Marginal ridges

Back 42

An elevated area of enamel that forms the mesial and distal borders of the lingual surface of the anterior teeth and the mesial and distal borders of the occlusal surface of the posterior teeth

Front 43

Maxillary arch

Back 43

Upper teeth

Front 44

Mesial

Back 44

Surface toward the midline

Front 45

Midline

Back 45

median line

Front 46

Mixed dentition

Back 46

The period when both primary teeth and permanent teeth are in the dentition.

Front 47

Molar

Back 47

Used to chew food

Front 48

Oblique ridge

Back 48

Elevated area of enamel that extends obliquely across the occlusal (chewing surface) of the tooth

Front 49

Occlusal

Back 49

Pulverizing or chewing surface

Front 50

Occlusal third

Back 50

Occlusal surface of the posterior tooth

Front 51

Peg lateral

Back 51

Diminutive, peg-shaped crown with a smooth surface lacking contact on the mesial and distal surfaces.

Front 52

Posterior

Back 52

The teeth in either arch that are located in the back of the mouth

Front 53

Quadrant

Back 53

Midline create two sections called quadrants

Front 54

Supplemental groove

Back 54

Shallow, linear groove that radiates from the developmental groove.

Often gives the tooth surface a wrinkled look

Front 55

Tooth morphology

Back 55

Study of the structure and form of teeth

Front 56

Triangular ridge

Back 56

Ridge or an elevation that descends from the cusp and widens as it runs down to the middle area of the occlusal surface

Front 57

Transverse ridge

Back 57

Union of two triangular ridges that produces a single ridge of elevation across the occlusal surface of a posterior tooth

Front 58

Trifurcated ( tri means three )

Back 58

Three roots coming from the main trunk of the tooth