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Restorative Dentistry > Pulp Anatomy > Flashcards

Pulp Anatomy Flashcards

1
Q

What is the pulp chamber and where is it located?
How many per tooth?

A

It is the most occlusal portion of the pulp cavity
One per tooth

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2
Q

What are pulp horns? How many per tooth>?

A

Projections of the pulp chamber, one per sizable cusp

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3
Q

What are pulp canals?

A

Portions of the pulp that extend into the roots of the tooth

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4
Q

Root canals connect to the pulp chamber via _______ and to the outside of the tooth via _____

A

Canal orifices
Apical foramen

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5
Q

On a single rooted tooth, how many canal types?

A

4

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6
Q

Explain type 1 canals for single rooted teeth

A

One canal extends form the pulp chamber to the apex

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7
Q

Explain type 2 canals on single rooted teeth

A

Two separated canals leave the pulp charmer, but they join short of the apex to form on canal apically and one foramen

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8
Q

Explain type 3 canals of single rooted teeth

A

Two separate canals exits the chamber and continue to two separate apical foramen

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9
Q

Explain type 4 canals of single rooted teeth

A

One canal leaves the chamber, then splits to form two canals and two apical foramen

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10
Q

In which root canal types of single rooted teeth are there two apical foramina present?

A

3, 4

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11
Q

_______ are smaller canals that exist alongside the main root canal and can cause complications

A

Accessory canals

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12
Q

Anterior teeth are most likely to have ____ root and ___ canal

A

1, 1,

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13
Q

Mandibular anterior teeth may have _______, one___ and one ____

A

Two canals, facial, lingual

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14
Q

______ is the most likely anterior tooth to have 2 canals

A

Mandibular canine

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15
Q

A mature incisor is likely to have ____ pulp horns or even __- from the facial or lingual view; peg laterals though will have ____ pulp horn because they have _________

A

2, 3
Only one , 1 developmental lobe

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16
Q

Young incisors may have __ pulp horns to reflect the _______

A

3, mamelons

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17
Q

Canines usually have ___ pulp horns

A

1

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18
Q

Premolars usually have ___ pulp horn per ____

A

One, sizable cusp

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19
Q

_______________ with a functionless lingual cusp may have _____

A

Mandibular first premolars, only one pulp horn

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20
Q

Pulp horn ____ tend to mirror the ____ of the cusps

A

Lengths, height

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21
Q

Max first pm usually have ___ roots and ___ canals
Even when they have 1 root, ____ canals

A

2 , 2
2

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22
Q

Max 2nd pm usually have ___ roots and ____ canals
And sometimes _____

A

1, 1,
2 canals

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23
Q

Mand 1st and 2nd pm usually have ___ roots and ____ canals
Sometimes, they have roots that bifurcate towards the apex resulting in _____ canals

A

1, 1,
Type 4

24
Q

In max molars, the pulp chamber is broader _____ than _____

A

Buccolingualy, mesiodistally

25
Q

In mand molars, pulp chamber is broader ____ than ____

A

Mesiodistally, buccolingually

26
Q

Molars have ___ pulp horn per ______
5 cusp molar (not cusp of carabelli) aka ____ molar, has 5 pulp horns

A

1, functional cusp
Mand 1st

27
Q

If max molars have 3 roots, they are ___,____,____
And have _____ canals (___, _____, _____)

A

Palatal, MB, DB
4 (2 MB, 1 P, 1 DB)

28
Q

In molars, the ______ canal is the largest and most accessible canal

A

Palatal

29
Q

Molars have ___ orifices in the chamber floor

A

4
* reflects number of canals

30
Q

Mand molars have ___ roots and ___ canals (____)
And ____ orifices in the chamber floor

A

2, 3 (MB,ML canals & 1 D)
3

31
Q

Third molars vary considerably, but normally max have ___ canals and mand have ___ canals

A

3, 2

32
Q

In primary teeth, the tooth has ____ layers of _______ and ____ therefore the pulp cavities are ____ and _____ to occlusal surfaces

A

Thinner, enamel, dentin
Larger, closer

33
Q

As a tooth ages, ______ line the pulp chamber and will _______ _______ ______

A

Odontoblasts
Deposit secondary dentin

34
Q

The deposition of secondary dentin _____ the diameter of the root canal as we age

A

Decreases

35
Q

In necrotic teeth (where ___ and ____ has been lost), the pulp canal _______ because there are no vital ____ to _________

A

Nerve, blood supply
Stays the same size
Odontoblasts, deposit secondary dentin

36
Q

Why is knowing the insides of the tooth (via radiographs) useful?

A

Avoid disturbing or exposing pulp in cases of deep decay
Can guide root canal treatment where the goal is to find the pulp and it’s canals

37
Q

What are pulp caps?
What types are there?
When would you use this treatment?

A

Calcium hydroxide that stimulates formation of 2ndary dentin
Indirect and direct
When you don’t quite need a root canal but have deep decay and want to protect roots

38
Q

What is an indirect pulp cap?

A

CaOH applied to thin layer of remaining dentin that covers pulp chamber
**NO EXPOSURE OF NERVE

39
Q

What is a direct pulp cap?

A

CaOH applied over a small pulpal exposure

40
Q

Mild inflammation in which pulp tissue remains healthy and can be saved is classified as _______

A

Reversible pulpitis

41
Q

In irreversible pulpitis, the inflammation of the pulp _______ without ________ (aka ______)
What are the findings when diagnosing a patient?

A

Will not heal, removal of pulp tissue (root canal therapy)
Hot/cold/sweet sensitivity, spontaneous pain, and/or prolonged response to cold when tested with endo ice

42
Q

What is periapical disease?

A

Pulp has become infected and infection spreads to AV bone via the apex

43
Q

Max central incisors:
Cervical outline is ____ shaped
____ canal
______ root depressions

A

Triangle
1
No prominent

44
Q

Max lateral incisors:

Cervical outline is ____ shaped
____ canal
______ root depressions

A

Egg shaped
1
Shallow mesial depression

45
Q

Mand central and lateral incisors:
Cervical outline is ___ shaped
______ canal
_______ root depression

A

Ovoid (wider FL than MD)
1 (usually)
Slight m and d root depression

46
Q

Max canines:
Cervical outline is _____
___ canal
_______ root depression

A

Ovoid (wider FL than MD)
1
M and d root depressions

47
Q

Mand canines:
Cervical outline is _____
____ canal
______ root depressions (which one is deeper?)

A

Ovoid (wider FL)
1 (if 2 - 1 F 1 L)
M and d root depressions, d is deeper

48
Q

Max 1st PM:
___ roots ____ canals
_____ in apical half
____ crown and root cavitation in ______

A

2, 2,
Furcation
MESIAL , cervical (looks like a bean!)

49
Q

Max 2nd pm:
Cervical outline is _____
___ roots ___ canals
_____ root depressions (which is deeper?)

A

Ovoid (wider BL)
1, 1
M and d, distal is deeper

50
Q

Mand 1st pm:
Cervical outline is _____
___ canal
_____ root depressions (which is deeper?)

A

Ovoid (wider BL)
1
M and d, distal is deeper

51
Q

Mand 2nd pm:
Cervical outline is _____
____ canal
_______ root depressions

A

Ovoid (wider BL)
1
Distal root depressions are common

52
Q

In mand 1st and 2nd molars, there are ___ roots and ___ canals
The ___ root is wider BL and has depressions on the ___

A

2 roots (M, D)
3 (MB, ML, D)
Mesial root wider BL, depressions on M and D of M root

53
Q

Mand 1st molars have __ root trunk and ___ divergent roots because moving posteriorly, trunk becomes ___ and roots ___ divergent

A

Shorter, more
Longer, less

54
Q

Max 1st and 2nd molars have ___ roots, ____ canals
____ root is wider ____ than ____ root and has depressions

A

3 roots (MB, DB, P) 4 canals (P, MB1, MB2, DB)
MB root wider BL than DB

55
Q

In max 1st and 2nd molars, there is furcation access in ___, ____, and ______
Explain what this means

A

Mid facial, mesial, and distal
**no furcation access on Palatal POV because only one root is visible (the Palatal root is so larger you cannot see where root trunk bifurcates )

56
Q

___ molars have shorter root trunks and more divergent roots
Moving posteriorly, trunk becomes _____ and roots ___ divergent

A

1st
Longer, less

Restorative Dentistry (11 decks)

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