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102 Class > Quiz 3. Posterior and Primary Dentition > Flashcards

Quiz 3. Posterior and Primary Dentition Flashcards

1
Q

What teeth are present in the Posterior Dentition

A

2 Premolars
2 Molars
8 on each arch
16 Total

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2
Q

When talking about occlusal we’re referring to?

A

Only talking about molar/premolar

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3
Q

Where are the marginal ridges on the posterior teeth?

A

Distal and mesial

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4
Q

What is a cusp tip?

A

Pointy part sticking up (all of them have)

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5
Q

What’s the inclined plane

A

From cusp -> middle

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6
Q

Central groove

A

Where most cavities occur

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7
Q

Marginal groove

A

Goes over marginal edge

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8
Q

Height of contour

A

Lingual Higher

Buccal lower

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9
Q

Premolar (Bicuspids)

A

Chew and grind a lot on them, not built for that
Mostly crowns are on premolars
Replace molars in primary dentition

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10
Q

What kind of concavities do premolars have?

A

Proximal root concavities

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11
Q

Where are the mesial and distal contacts of premolars?

A

cervical to junction of occlusal and middle thirds

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12
Q

What do the premolars consist of?

A

Occlusal table w/ marginal ridges, cusp, cusp tips, ridges, inclined planes, grooves, fossae, pits

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13
Q

What kind of ridge does a premolar have?

A

Buccal ridge

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14
Q

Buccal Features of 1st premolar

A

More likely to have 2 roots than 2nd

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15
Q

Buccal developmental depression

A

Not everyone has

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16
Q

Max R 1st premolar #5

A

Proximal root concavities
Larger crown than 2nd molar
Developmental groove: where cavities form

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17
Q

5 Max (1st premolar) cusp details

A

2 cusps, bicuspid
Buccal cusp > Lingual
Mesial cusp Longer than distal

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18
Q

5 Max (1st premolar) root details

A

2 roots(bifurication)
Long trunk
2 pulp chambers

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19
Q

What is special about the mesial marginal groove on tooth #5?

A

Goes all the way down side into mesial surface (disappears over the side)

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20
Q

4 Max 2nd premolar Characteristics

A

Single root
Buccal cusp>Lingual (slightly)
Smaller crown than 1st
Mesial groove stops nowhere close to edge (Not on mesial)

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21
Q

4 Max (2nd premolar) Additional

A

Occlusal: Mesial/distal pit, central groove
Cingulum on anterior
Cusps on posterior

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22
Q

28 Mand 1st premolar

A

Single root

Lingual cusp

23
Q

What tooth does #28 resemble?

A

It looks more like a canine than a molar

24
Q

Where does #28 mesiolingual groove happen?

A

Comes onto lingual

25
Q

Additional info of #28

A

Extract if need room for braces

If need fillings, termed “snake eyes”

26
Q

29 Mand. R 2nd premolar

A

Single rooted
Shaped like a small molar
Larger crown than 1st

27
Q

29 Cusps

A

Cusps similar in size
Usually have 3 cusps, although some people only have 2, varies from person to person
2= U or H shape (occlusal)
3= Y shape (occlusal)

28
Q

29 2nd premolar Additonal

A

Mesial/distal pit, central groove

29
Q

3 Max 1st molar

A

Trifurication- 4 root canals
Divergent roots
Largest tooth in max arch/crown in dentition

30
Q

3 First Molar Cusps

A

4 major cusps: 2 buccal 2 lingual

Cusp of Carabelli: Mesiolingual cusp (3 lingual, 2 Buccal) *Some people have and some don’t

31
Q

3 First Molar additional features

A

Distolingual cusp is smaller

32
Q

Permanent Molars Root for Maxillary

A

Maxillary: 3 roots, 2 are always buccal (mesio/disto buccal root) 1 lingual/palatal root

33
Q

Permanent Molars for Mandibular Root

A

Only have 2 roots: mesio and distal root

34
Q

Permanent Molars 4 main cusps

A

Lingual groove: where cavities form
Oblique ridge: big ridge of enamel, don’t cut through. Do fillings all around tooth to leave alone (distobuccal->mesiolingual cusp)

35
Q

3 Mesial Drift:

A

Teeth drift toward front of mouth
Lean/tilt with missing molar
Better to lose top than bottom, top tend to continue to grow if bottom isn’t present

36
Q

2 Mand. 2nd Molar

A 
Smaller crown than 1st molar
3 or 4 Cusps
Oblique ridge
Lingual> Buccal
Some have no distolingual cusp
37
Q

17 Max 3rd molar

A

Trifurication- but they’re fused (large variation)
Curve distally
Easy to extract, quick, bone is thin
Smaller crown than second

38
Q

17 Max 3rd molar additional fact

A

Some get an extra 3rd molar way in the back even after wisdom teeth

39
Q

30 Mand 1st molar

A

1st permanent to erupt

Widest crown front to back (mesiodistally)

40
Q

Buccolingual

A

Side to side

41
Q

30 Mand. 1st molar cusps

A 
5 cusps (Y-groove)
3 Buccal (slightly shorter)
2 Lingual
42
Q

30 Mand. 1st molar root

A

Bifurcated roots, 3 different canals
2 Mesial
1 Distal

43
Q

30 Mand 1st molar, Mesial drift

A

Teeth tilted on side, perio issues. Tooth grows into empty space

44
Q

31 Mand 2nd molar

A

Generally 2 roots(less divergent), Fused together on some
Small mesiodistally than 1st molar
4 cusps
Smaller than first crown

45
Q

32 Mand. 3rd molar

A

Roots (irregularly) tilted toward distal, Fused
Impacted Commonly
Smaller crown than 2nd

46
Q

Dilaceration

A

Crooked or bent roots

47
Q

Mulberry Molars

A

Happens to molars, look like berries

Caused by syphilis

48
Q

Enamel Pearls

A

Extra enamel developed, show up on x-rays
Developmental thing
In Furications

49
Q

Fusion or Concrescence

A

2 tooth buds fused/hooked together

Cementum overgrew and fused teeth together, look fine on outside

50
Q

Detigerous Cyst

A

Can destroy bone, weakens it

Would have to go in and remove

51
Q

Primary Posterior

A

8 Posterior
Nice Diastimas in children teeth is a good thing.
Braces are going to be needed if there is crowding

52
Q

Primary vs Posterior

A

No pre-molars

Detect decay early in primary dentition. Bigger pulp and thinner enamel

53
Q

What is the only primary tooth that is wider than it is tall?

A

Primary Maxillary Central Incisor

54
Q

Which molar is closest in anatomy from primary to permanent?

A

2nd molars

102 Class (4 decks)

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