Expanded

Front 1

Areas on the proximal surface that touch one another, the contact points are important for .....

Back 1

1. serves to keep food from being trapped between the teeth.
2. helps stabilize dental arches
3. protect interproximal gingival tissue from trauma during mastication.

Front 2

Which are the only teeth that possess an oblique ridge?

Back 2

Maxillary molars

Front 3

The fifth cusp of the maxillary first molar.

Back 3

Cusp of carabelli....appears to be attached to the ML surface of ML cusp.

Front 4

Distal cusp on mandibular first molar.

Back 4

Distal cusp is known as the fifth cusp. Found between DB and DL cusps. Distal cusp is at lower level than ling. cusps.

Front 5

Marginal ridge

Back 5

an elevation of enamel that forms the boundary or border of the occlusal surface of posterior teeth, as well as those found on the lingual surface of anterior teeth.

Front 6

Contact area(point)

Back 6

areas on the proximal surfaces that touch each other.

Front 7

Cingulum

Back 7

the part of the incisor teeth and canine, occurring on the lingual surface that forms a convex protuberance at the cervical third of the anatomic crown (near the gum line)

Front 8

CEJ (cementum enamel junction)

Back 8

the junction of the enamel of the crown and the cementation of the root of a tooth. Curves the greatest on the proximal surfaces of anterior teeth.

Front 9

Oblique ridge

Back 9

a ridge found only on maxillary molars. It crosses the occlusal surface obliquely(diagonally) from the mesiolingual cusp to the distobuccal cusp. It separates the central and distal occlusal fossae.

Front 10

Occlusion

Back 10

the act of closure or state of being closed

Front 11

Cusps

Back 11

pointed or rounded eminence on or near the masticating surface of a tooth.

Front 12

Pit

Back 12

a small depression in the enamel usually located in a developmental groove where two or more enamel lobes are joined

Front 13

Developmental grooves

Back 13

a fine depressed line in the enamel of a tooth that marks a union of the lobes of the crown in its development

Front 14

Height of contour

Back 14

the bulge, or widest point on a specific surface of the crown. The contact areas on the mesial and distal surface are considered the height of contour on the proximal surfaces. The facial and lingual surfaces also have a height of contour. Located at the junction of the cervical and middle thirds.

Front 15

Mamelon

Back 15

A rounded or conical prominence on the incisal ridge of a newly erupted incisor. They are three in number and disappear with wear.

Front 16

Gingival embrasure

Back 16

area of contact between teeth closes to the gingiva. A triangular space.

Front 17

Occlual embrasure

Back 17

Area of contact between teeth closes to the occlusal side of teeth. Triangular area

Front 18

Transverse ridge

Back 18

made up of the triangular ridges of a buccal and lingual cusp, which join to form a more or less continuous elevation extending transversly across the occlusal surface of a posterior tooth.

Front 19

Pulpal wall

Back 19

also known as the pulpal floor.

Front 20

Fossa

Back 20

an irregular shaped depression or concavity of varying size on the surface of the tooth. This surface forms an angle with the labial surface

Front 21

Incisal edge

Back 21

formed by the junction of the linguoincisal surface of an anterior tooth. This surface forms an angle with the labial surface.

Front 22

Triangular ridge

Back 22

Prominent ridges or elevations which descend from the tip of the cusps and widens toward the central area of the occlusal surface. named for the cusp to which they belong.

Front 23

Clinical crown

Back 23

the crown portion that can be seen in the oral cabity extending from the gingival margin to the biting surface of a tooth.

Front 24

labial surface

Back 24

surface toward the lips

Front 25

buccal surface

Back 25

surface toward the cheek

Front 26

occlusal surface

Back 26

biting surface of posterior teeth

Front 27

incisal surface

Back 27

biting surface of anterior teeth

Front 28

proximal surface

Back 28

surface of a tooth that is next to an adjacent tooth ( mesial and distal surface). Maybe called interproximal surfaces.

Front 29

Cusp of carabelli

Back 29

The fifth cusp located on the lingual surface or mesiolingual cusp of the maxillary first molar only.

Front 30

sulcus

Back 30

elongated valley in the surface of a tooth formed by inclines of adjacent cusps, which meet at an angle

Front 31

Fissure

Back 31

a developmental groove that has an imperfect union where the lobes come together, a fault

Front 32

Distal cusp

Back 32

The fifth cusp located on the occlusal surface, between the distobuccal and distolingual cusp, of the mandibular first molar.