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dhyg 107 > permanent Molars > Flashcards

permanent Molars Flashcards

1
Q

Maxillary molars are wider MD or BL?

A

BL

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2
Q

Mandibular molars are wider MD or BL

A

MD

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3
Q

What arch molars have a lingual inclination?

A

Mandibular molars

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4
Q

Which arch has an oblique ridge?

A

Maxillary molars

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5
Q

Where do the 3 furcations on the maxillary Molar begin?

A

Mesial (3), Buccal (4), Distal (5)

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6
Q

What is a clinical consideration for a maxillary molar due to roots penetrating the middle and posterior parts of the ______ as a result of trauma or ext bcuz of close relation?

A

Maxillary sinusitis

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7
Q

What is the clinical consideration for the maxillary molar due to both increased dental biofilm retention and thinness of enamel forming the walls of the pit?

A

Lingual Pit.

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8
Q

Developmental disturbance for max molars - Union of root structure of two or more teeth through the cementum only?

A

Concrescence

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9
Q

Eruption age and root completion of max & mand first molars?

A

erupt- 6 to 7 y/o
root - 9-10 y/o

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10
Q

Which is the largest tooth & crown in the maxillary arch?

A

Maxillary 1st molar

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11
Q

Which maxillary molar is the least variable in form?

A

Maxillary 1st molar

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12
Q

Which maxillary molar has the larger & more divergent roots?

A

1st max molar

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13
Q

Where is the deepest root concavity found on the maxillary 1st molar?

A

Furcal ascept of MB root

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14
Q

What are the pulp features for the maxillary first molar?

A

4 pulp horns (each cusp), 3 pulp canals, 1 pulp chamber

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15
Q

How many cusps are in maxillary 1st molars? (#3 & #14)

A

4 cusps

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16
Q

The mesial is flat on the max 1st molar & the distal is rounded on the max 1st molars ? T or F

A

true

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17
Q

What is the name of the non functioning ML cusps of the max 1st molar?

A

Cusps of carabelli

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18
Q

Which is the largest cusps on the max first molar & only cusps with two ridges?

A

ML cusp

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19
Q

What makes up the central groove in the max first molar?

A

Mesial groove & distal groove

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20
Q

Clinical consideration for max 1st molars: due to arch position and bcuz the 1st molars are the first permaneat teeth to erupt in the maxillary arch, they are considered importatn in the development of ______?

A

Occlusion

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21
Q

Eruption & root age of perm max secondary molars?

A

erupt- 12 and 13 y/o
root- 14 and 16 y/o

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22
Q

How many cusps can a max 2nd molar have?

A

usually 4 (rhombiod) but can be 3 (heart)

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23
Q

Maxillary 2nd molar pulp cavity features?

A

3 pulp canals, 4 pulp horns (each cusps), 1 pulp chamber

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24
Q

How many roots do maxillary molar have?

A

3 roots

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25
Q

The 2nd max molar is shorter ________ and narrower _____ than a 1st molar?

A

occlusocervically; MD

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26
Q

On the maxillary 2nd molar which cusps is sharper?

A

DL cusp

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27
Q

On the maxillary 2nd molar which cusp is longer & larger?

A

ML cusp

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28
Q

Do carabelli cusp do NOT exist on which teeth

A

2nd & 3rd molars

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29
Q

Which is the most common shape in the 2nd max molar?

A

Rhombodial shape

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30
Q

Which is the least common shape in the 2nd max molar?

A

heart shaped

31
Q

The oblique ridge is LESS prominent on which maxillary molar?

A

max 2nd molar

32
Q

Which molar is the smallest and most variable shape in the dentition?

A

3rd molar

33
Q

Eruption age for 3rd molar?

A

17-21 y/o
root- 18-25 y/o

34
Q

IS there an oblique ridge on the max 3rd molar?

A

NO

35
Q

The roots curve _____ in the max 3rd molar

A

distally

36
Q

Clinical consideration for max 3rd molars?

A

impacted

37
Q

The mnadibular 1st molars have a strong _____ inclination when view from proximal?

A

Lingual

38
Q

Shape of mandibular teeth from proximal view?

A

Rhomboidal

39
Q

How many roots do the mandibular molars have?

A

2 ( Bifurcated)

40
Q

What are some clincal considerations for both pt and clinician that involve mandibular molars?

A

Narrow lingual surfaces w/ inclination and root concavities making it diffucult to instrument and clean.

41
Q

The occlusal surface of a mandibular molar is wrinkled w/ irregular groove pattern, numerious supplemental grooves and occlusal pits is descrbrided as?

A

Crenulated

42
Q

Which is the first tooth to erupt into the perm dentition?

A

Mandibular 1st molar

43
Q

The largest cusp on the Mandibular 1st molar?

A

MB cusp

44
Q

The two roots on the mand 1st molar are larger and more divergent then the second leaving the roots ____ separated ____

A

Widely separated buccally

45
Q

The roots on the mandibular 1st molar are ______?

A

Wider and stronger

46
Q

What is the pulp cavity of the mand 1st molar?

A

3 pulp canals, 5 pulp horns, 1 pulp chamber

47
Q

Which mesial root on the mand 1st molar has two pulp canals?

A

MB and ML

48
Q

clincal consideration- What is the name of the pit on the mandibular 1st molar?

A

buccal pit

49
Q

Where is the height of contour on an all molars?

A

Buccal- cervical third
Lingual- middle third

50
Q

What is the largest cusps in the mand 1st molar?

A

MB cusps

51
Q

Which tooth has the most complex developmental groove pattern of all the perm mand molars?

A

mand 1st molar (y shape)

52
Q

Eruption & root age of the mand 2nd molar?

A

erupt-11 & 13 y/o
root- 14 & 15 y/o

53
Q

Which molar has 4 cusps nearly equal in size?

A

Mand 2nd molar

54
Q

Similar to the mand 1st molar the mand 2nd molar can have 3 pulp canals ?T or F

A

true

55
Q

How many pulp horns does the mand 2nd molar have?

A

4

56
Q

Height of contour for all molars

A

Buccal- cervical third
lingual-middle third

57
Q

Height of contour for all Maxillary and mandibular molars?

A

Buccal- cervical third
Lingual- middle third

58
Q

Where is the contact located for maxillary & mandibular second molar?

A

Mesial- middle third
Distal - middle third

59
Q

Where Is the contact located for the mandibular first molars? (R&L)

A

Mesial- junction of occlusal & middle thirds
Distal- junction of occlusal & middle thirds

60
Q

Where is the contact located for maxillary 1st molars? (R&L)

A

Mesial- junction of occlusal and middle thirds
Distal- middle third

61
Q

Where is the contact for the maxillary third molars?

A

Mesial- middle third
Distal- no contact

62
Q

Where is the contact for the mandibular third molars?

A

Mesial - cervical third
Distal- no contact

63
Q

Which molar is the largest?

A

First molars

64
Q

Each buccal surface of a molar has a prominent ________? (In cervical 1/3)

A

Cervical ridge; running MD

65
Q

How does a cervical ridge impact exploring/scaling of the tooth?

A

Hard to get instrument around cervical ridge to clean

66
Q

What is the function of molars during mastication?

A

Grinding

67
Q

Clinical consideration for ALL molars?

A

Cervical ridge presents challenges during instrumentation around cervical area

68
Q

The oblique ridge on the max 1st & 2nd molars run from which two cusps?

A

ML & DB cusp

69
Q

Which cusps is the smallest in a first molar?

A

Distal cusp

70
Q

Which molar has the most complex groove pattern and “Y” shaped pattern?

A

Mandibular first molars

71
Q

Furcation entrance on molars is Narrow then the width? T or F

A

True

72
Q

Which cusps is the cusps of carabelli located on?

A

ML cusp or 5th cusp

73
Q

Which cusps on the maxillary 2nd molars shows the most variability?

A

Distolingual cusps

dhyg 107 (3 decks)

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