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OCCLUSION > INTRO > Flashcards

INTRO Flashcards

1
Q

Occlusion

A

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

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2
Q

Static occlusal relationship

A

When jaws are closed/teeth not moving

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3
Q

Dynamic occlusal relationship

A

During various jaw movements

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4
Q

Occlusal contacts

A

location of contacts between opposing teeth

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5
Q

Occlusal contacts vary as a result of:

A

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

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6
Q

Masticatory

A

chewing

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7
Q

Active tissue components

A

muscles, nerves

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8
Q

Passive tissue components

A

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

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9
Q

How many deciduous teeth are there?

A

20

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10
Q

How many permanent teeth are there?

A

32

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11
Q

Shape of incisors

A

shovel shaped

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12
Q

“corner/pillars” of the mouth

A

canines

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13
Q

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

A

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

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14
Q

Does max or mand arch have greater facial angulation?

A

max

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15
Q

Are max or mand anteriors wider?

A

max

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16
Q

Proclination

A

tipping the crown of anterior teeth labially.

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17
Q

Plane

A

flat surface dividing body into sections

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18
Q

Saggital Plane

A

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

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19
Q

Median Plane

A

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

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20
Q

Coronal/Frontal Plane

A

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

21
Q

Transverse Plane (“Horizontal Plane”)

A

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

22
Q

Vertical Plane

A

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

23
Q

Mesial

A

towards midline

24
Q

Distal

A

away from midline

25
Q

Lingual

A

towards/adjacent to tongue

26
Q

Labial (“Facial”)

A

towards/adjacent to lips - anteriors

27
Q

Vestibular

A

towards/adjacent to vestibule

28
Q

Oral vestibule

A

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

29
Q

Buccal

A

towards/adjacent to cheek - posteriors

30
Q

Occlusal

A

towards chewing surface of posterior teeth

31
Q

Incisal

A

towards cutting surface of anterior teeth

32
Q

Gingival

A

towards “gums”

33
Q

Apical

A

towards the “root tips”

34
Q

Cervical

A

towards the neck of the tooth - CEJ

35
Q

Proximal

A

close to/next to; closest point of attachment

36
Q

Cusp

A

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

37
Q

Tubercle

A

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

38
Q

Cingulum

A

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

39
Q

Ridge

A

linear elevation on surface of tooth, named according to location

40
Q

Marginal Ridge

A

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

41
Q

Triangular Ridge

A

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

42
Q

Transverse Ridge

A

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

43
Q

Oblique Ridge

A

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

44
Q

Fossa

A

irregular depression/concavity

45
Q

Lingual Fossae

A

on lingual surface of incisors

46
Q

Central/Fossae

A

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

47
Q

Triangular Fossae

A

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

48
Q

Sulcus

A

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

49
Q

Occlusal Table

A

area between buccal and lingual cusp tips of posterior teeth

OCCLUSION (4 decks)

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