INTRO

Question 1

Occlusion

Answer 1

when teeth in mand arch come into contact with those in max arch in any functional relation

Occlusion = “closing” - contact of teeth in opposing dental arches

Question 2

Static occlusal relationship

Answer 2

When jaws are closed/teeth not moving

Question 3

Dynamic occlusal relationship

Answer 3

During various jaw movements

Question 4

Occlusal contacts

Answer 4

location of contacts between opposing teeth

Question 5

Occlusal contacts vary as a result of:

Answer 5

differences in size/shape of teeth/jaw and the relative position of the jaws

Question 6

Masticatory

Answer 6

chewing

Question 7

Active tissue components

Answer 7

muscles, nerves

Question 8

Passive tissue components

Answer 8

teeth, TMJ, bony structures, etc. (everything else besides muscles/nerves)

Question 9

How many deciduous teeth are there?

Answer 9

20

Question 10

How many permanent teeth are there?

Answer 10

32

Question 11

Shape of incisors

Answer 11

shovel shaped

Question 12

“corner/pillars” of the mouth

Answer 12

canines

Question 13

Is the max or mand arch: larger? Wider? More inclined? Why?

Answer 13

Max arch is larger, wider and more inclined due to shape

Question 14

Does max or mand arch have greater facial angulation?

Answer 14

max

Question 15

Are max or mand anteriors wider?

Answer 15

max

Question 16

Proclination

Answer 16

tipping the crown of anterior teeth labially.

Question 17

Plane

Answer 17

flat surface dividing body into sections

Question 18

Saggital Plane

Answer 18

vertical line through body parallel to median plane or saggital suture - divides body into unequal left and right portions

Question 19

Median Plane

Answer 19

passes longitudinally through body/organ/part from front to back - divides into right and left halves

Question 20

Coronal/Frontal Plane

Answer 20

planes passing longitudinally through body/organ/part at right angles to median plane - divides into front and back portions

Question 21

Transverse Plane (“Horizontal Plane”)

Answer 21

passes horizontally through body/organ/ part at right angles to median and frontal planes - divides into upper and lower portions

Question 22

Vertical Plane

Answer 22

perpendicular to horizontal plane - sagittal, median, or coronal/frontal plane

Question 23

Mesial

Answer 23

towards midline

Question 24

Distal

Answer 24

away from midline

Question 25

Lingual

Answer 25

towards/adjacent to tongue

Question 26

Labial ("Facial")

Answer 26

towards/adjacent to lips - anteriors

Question 27

Vestibular

Answer 27

towards/adjacent to vestibule

Question 28

Oral vestibule

Answer 28

small slit-like space between the teeth and inner mucosal lining of the lips and cheeks

Question 29

Buccal

Answer 29

towards/adjacent to cheek - posteriors

Question 30

Occlusal

Answer 30

towards chewing surface of posterior teeth

Question 31

Incisal

Answer 31

towards cutting surface of anterior teeth

Question 32

Gingival

Answer 32

towards “gums”

Question 33

Apical

Answer 33

towards the “root tips”

Question 34

Cervical

Answer 34

towards the neck of the tooth - CEJ

Question 35

Proximal

Answer 35

close to/next to; closest point of attachment

Question 36

Cusp

Answer 36

elevation/mound on crown portion of tooth, making up divisional part of occlusal surface

Question 37

Tubercle

Answer 37

smaller elevation on some portion crown, produced by extra formation of enamel - deviations from typical form

Question 38

Cingulum

Answer 38

lingual lobe of an anterior tooth, makes up bulk cervical third of lingual surface

Question 39

Ridge

Answer 39

linear elevation on surface of tooth, named according to location

Question 40

Marginal Ridge

Answer 40

rounded borders enamel forming M/D margins of occlusal surface premolars/molars & lingual surfaces incisors/canines

Question 41

Triangular Ridge

Answer 41

descend from tips of cusps on molars/premolars towards central part occlusal surface - Slopes of each side of ridge are inclined to resemble 2 sides of a triangle - Named after cusps to which they belong (e.g., triangular ridge of buccal cusp of max 1st premolar

Question 42

Transverse Ridge

Answer 42

form when buccal/lingual triangular ridges join, union 2 triangular ridges crossing transversely on surface posterior teeth

Question 43

Oblique Ridge

Answer 43

crossing obliquely the occlusal surface of max molars, union triangular ridge of DB cusp and distal cusp ridge of ML cusp

Question 44

Fossa

Answer 44

irregular depression/concavity

Question 45

Lingual Fossae

Answer 45

on lingual surface of incisors

Question 46

Central/Fossae

Answer 46

on occlusal surface molars, converging of ridges terminating at central point in bottom of depression at junction of grooves

Question 47

Triangular Fossae

Answer 47

on MMR/DMR of molars/premolars and sometimes at edge of lingual fossae on max incisors where MR and cingulum meet

Question 48

Sulcus

Answer 48

long depression/valley in surface of tooth between ridges/cusps, inclines of which meet at an angle - Has developmental groove at junction of it's inclines - Sulcus should not be confused with groove

Question 49

Occlusal Table

Answer 49

area between buccal and lingual cusp tips of posterior teeth