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Dental > Dentitions > Flashcards

Dentitions Flashcards

1
Q

What are the two sets of dentition

A

Primary and permanent

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2
Q

What is dentition?

A

Natural teeth in the dental arch

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3
Q

What are the 3 dentition periods?

A

Primary, mixed, permanent

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4
Q

What are primary teeth?

A

Set of 20 teeth. Can be called baby teeth or deciduous. Comes out around 6 months-6 years old

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5
Q

What are permanent dentition?

A

Set of 32 teeth. Begins around age 12 and complete by age 14-15 except for 3rd molars. Also succedaneous - permanent replaced primary teeth. Molars are NOT succedaneous; premolars replace primary molars

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6
Q

What are mixed dentition?

A

Takes place between age 6-12; some primary and permanent teeth; permanent is larger than primary teeth

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7
Q

Maxillary arch

A

Upper arch, not moveable

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8
Q

Mandibular arch

A

Lower arch, moveable arch

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9
Q

Occlusion

A

When teeth of both arches are in contact, “biting down”

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10
Q

Quadrants

A

When mouth is divided into 4 parts
Max right quad; max left quad; man right quad; man left quad

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11
Q

Sextants

A

1/6th of the dentition; 3 sextants in each arch; left and right posterior (premolars-molars) and anterior incisors-canines)

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12
Q

Anterior

A

Front teeth; form a smooth curving arc

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13
Q

Posterior

A

Back teeth; aligned in a straight line

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14
Q

Permanent dentition is divided into 4 types of teeth

A

incisors, cuspids, premolars, molars

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15
Q

Primary dentition has what types of teeth

A

Incisors, cuspids, molars

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16
Q

What are incisors?

A

Design to cut; thin, sharp, and incisal edge

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17
Q

What are cuspids/canines?

A

Used for cutting and tearing food; known as cornerstone of the dental arch; longest teeth and last to lose

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18
Q

What are premolars?

A

Known as bicuspids; hold and grind food

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19
Q

What are molars?

A

1,2,3 molars; used for grinding food; erupt behind primary molars

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20
Q

What are the 5 surfaces of teeth?

A

Facial/Buccal; lingual; incisal/occlusal; mesial, distal

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21
Q

What is facial surface?

A

Surface of anterior teeth facing lips; referred as labial surfaced

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22
Q

What is buccal surfaces?

A

Facial surface of posterior teeth closest to the inner cheek

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23
Q

Lingual surface

A

Surface facing the tongue

24
Q

Proximal

A

Surfaced that are adjacent to each other in the same arch

25
Q

Mesial

A

Facing toward the midline of front of the mouth

26
Q

Distal

A

Facing away from the midline or towards the back of the mouth

27
Q

Occlusal

A

Chewing surfaces of posterior teeth

28
Q

Incisal

A

Cutting edge of anterior teeth

29
Q

Interproximal space

A

Area or space between adjacent tooth surfaces (space between two teeth if you think of bones)

30
Q

Concave

A

Curvature that means inwards (inside of a bowl)

31
Q

Convex

A

Curvature that extends outwards (outside of a bowl)

32
Q

Facial/lingual contours

A

Provides natural passageway for food, protects gingiva, stimulates gingiva

33
Q

Mesial/distal contours

A

Help determine normal contact and embrasure form; tend to be self cleansing; contribute to tooth’s self-preservation

34
Q

Contact area

A

Mesial and distal surfaces of a tooth that touch each other in the same arch

35
Q

Contact point

A

Exact point where teeth actually touch; purposes: prevents trapping of food, stabilizes teeth in either arch, protects interproximal gingiva tissues from trauma during chewing

36
Q

Height of contour

A

Bulge or widest point on a crown; all surfaces have a height of contour; mesial & distal contact areas are the height of contour on proximal surfaces

37
Q

Embrasures

A

Triangular shape beyond contact area of tooth (V shaped valley between adjacent teeth) located: incisal/occlusal, lingual, facial, gingiva (apically)

38
Q

Line angle

A

Formed by junction of 2 surfaces; named after 2 surfaces involved

39
Q

Point angle

A

Formed by junction of 3 surfaces; named after 3 surfaces involved

40
Q

Division of thirds: crown mesiodistal

A

Mesial, middle, distal (front view of tooth)

41
Q

Division of thirds: crown buccolingual

A

Facial, middle, lingual (side view of tooth)

42
Q

Division of thirds: crown occlusocervical

A

Occlusal; middle; cervical (crown of tooth/visible tooth)

43
Q

Division of thirds: root

A

Apical, middle, cervical thirds

44
Q

What is occlusion?

A

Relationship between the max and man teeth when jaws are fully closed

45
Q

What’s centric occlusion?

A

Occurs when jaws are closed in a position that produces maximal stable contact between occluding surfaces of max. & man. Teeth

46
Q

What’s malocclusion?

A

Abnormal or malpositioned relationship of max and man teeth when centric occlusion

47
Q

What’s functional occlusion?

A

Describe contact or the teeth during biting and chewing movements

48
Q

What’s Angles classification

A

Describe & classify occlusion and malocclusion; uses perm max. 1st molar as key to occlusion

49
Q

Angles classification: class I

A

Neutroclussion

ideal relationship; MB cusp of max 1st molar occluded w/ MB groove of man 1st molar

Anterior/individual teeth may be malaligned

50
Q

Angles classification: class II

A

Distoclusion

MB cusp of max 1st molar is mesial to MB groove of man 1st molar

Man arch is distal to max arch

Protrusion look

51
Q

Angles classification: class II D1

A

Labioverison: the inclination of the teeth to extend facially beyond the normal overlap of the incisal edge of the max incisors over the man incisors

52
Q

Angles classification: class II D2

A

Linguoverison: the position of the max incisors behind the man incisors

Max incisors slightly overlap the front of the man incisors

53
Q

Angles classification: class III

A

Malocclusion or mesioclusion

MB cusp of max 1st molar occluded in space behind D cusp of man 1st molar

Mandible must be in an abnormal mesial relationship to the maxilla

Mandible protrudes

54
Q

Curve of spee

A

The curvature formed by the max and man arches in occlusion

Upward curvature; resembles smile line

O plane of teeth on man arch appears concave

O plane of teeth on max arch appears convex

55
Q

Curve of Wilson

A

Cross arch curvature of the posterior occlusal plane

Downward curvature of the arc drawn across Mandibular first molars

Dental (7 decks)

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