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Flashcards in Maxillary First Molar Deck (53)
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1
Q

Which tooth is known as the 6-year molar?

A

Maxillary First Molar

2
Q

Which tooth has the largest crown in the entire mouth?

A

Maxillary First Molar

3
Q

Which tooth on the maxillary arch is the largest in overall size?

A

Maxillary First Molar

4
Q

Among maxillary molars, which one is least variable n anatomic form?

A

Maxillary First Molar

5
Q

What are the dimensions from largest to smallest on a Maxillary First Molar?

A

FL>MD>OC

6
Q

What is the geometrical shape of the Maxillary First Molar from lingual and/or facial view?

A

Trapezoidal (all teeth)

Tapers cervically from facial/lingual view

7
Q

What is the geometrical shape of the Maxillary First Molar from proximal view?

A

Trapezoidal and tapers occlusally

8
Q

What is the geometrical shape of the Maxillary First Molar from occlusal view?

A

Rhomboidal (but 5 sides)

Leans mesially

9
Q

Where is the Mesial HOC on a Maxillary First Molar?

A

Junction of Occlusal and Middle Third

10
Q

Where is the Distal HOC on a Maxillary First Molar?

A

Middle Third

11
Q

Is the entire outer portion of the distal outline from the facial view of the Maxillary First Molar concave or convex?

A

Distal outline from facial view is convex

12
Q

What is the comparison of the disco-occlusal an mesial-occlusal angle on a Maxillary First Molar?

A

Disco-Occlusal angle is more rounded (obtuse)

Mesial-Occlusal angle is much sharper (acute)

13
Q

From the facial view of a Maxillary First Molar, can one see the distal surface of the tooth?

A

Distal Surface is visible from facial view due to rhomboidal effect tapering mesially

14
Q

What is so special about the Cervical line (CEJ) on a facial view of a Maxillary First Molar?

A

there is a V-Shape dip on a Maxillary First Molar facial view towards the buccal root bifurcation

15
Q

Which teeth in the entire mouth have the least lingual taper?

A

Mandibular 2nd premolar 3-cusp variety & Maxillary First Molar

16
Q

Which cusp is the biggest on a Maxillary First Molar?

A

Mesiolingual Cusp is the biggest

17
Q

Which cusp is the sharpest on a Maxillary First Molar?

A

Distobuccal Cusp is sharpest

18
Q

Which Tooth has the largest F-L dimension of any tooth?

A

Maxillary First Molar

19
Q

What maxillary molar has the least difference between MD & FL? In other words, which maxillary molar has a nearly equal length than any other maxillary molar?

A

Maxillary First Molar

20
Q

Which tooth of the maxillary molars does not have lingual taper?

A

Maxillary First Molar

21
Q

Which root has the greatest MD dimension in maxillary arch?

A

Palatal (lingual) root of maxillary molars (First?)

22
Q

Unique features of maxillary molars only…. (flip over)

A

Oblique ridge
distolingual groove
Trigone (MB + DB + ML)
Mesiollingual Cusp has 2 ridges (1 from transverse ridge + 1 from oblique ridge)

23
Q

When we refer to the two facial roots as having a unique shape of pliers, we are speaking about…?

A

Maxillary First Molar MB + DB roots

24
Q

Which teeth share a characteristic where the distal proximal contact area is centered both, OC + FL?

A

Maxillary Lateral Incisor, Canine, First + Second Molar

Mandibular Second Molar

25
Q

From a facial view a Maxillary First Molar, which cusp can be seen between MB + DB cusp

A

Mesionlingual cusp

26
Q

Where is the Facial HOC on a Maxillary First Molar? What is that site called and which way is it more prominent from a facial view?

A

Facial HOC is located as cervical third due to Bucco-gingival ridge which runs horizontally. It is more prominent mesially

27
Q

Which groove is found on the lingual surface of the Maxillary First Molar?

A

Distolingual Groove

28
Q

Which two cusps does the distolingual groove separate on a Maxillary First Molar?

A

ML + DL cusps

29
Q

Which maxillary premolar has a wide MD lingually than facially?

A

Maxillary First Molar

30
Q

On which cusp of which tooth is the Cusp of Carabelli found?

A

Maxillary First Molar ML cusp

31
Q

What feature does the lingual root of the Maxillary First Molar have that other Maxillary molars do not?

A

Lingual root of Maxillary First Molar posses a root depression/concavity

32
Q

From a proximal view of Maxillary First Molar, where does the lingual root lay in comparison to the crown?

A

Palata root apex is lingual to the crown

33
Q

From mesial view of the Maxillary First Molar, which cusps are visible?

A

MB + ML cusps

34
Q

From distall view of the Maxillary First Molar, which cusps are visible?

A

all 4 cusps + all of occlusal surface

35
Q

Does the Maxillary First Molar from the mesial side have a groove?

A

Maxillary First Molar has a menial groove bisecting the mesial marginal ridge

36
Q

From which view can one see more of the facial surface and less of the lingual surface on a Maxillary First Molar?

A

from distal view one can see more facial and less lingual due to its rhomboidal shape (5 sides)

37
Q

Where is the distal contact of a Maxillary First Molar located on a F-L dimension?

A

Distal contact area located midway F-L (with other 4 teeth)

38
Q

Which cusps are acute and obtuse in a Maxillary First Molar?

A
Acute = MB + DL
Obtuse = DB + ML
39
Q

Which tooth of the entire mouth has the largest F-L dimension of any tooth?

A

Maxillary First Molar

40
Q

Of the 3 maxillary molars, which tooth has nearly similar FL and MD dimensions?

A

Maxillary First Molar has nearly similar FL & MD dimension but FL > MD

41
Q

Which side of the tooth has a wider MD dimensions on a Maxillary First Molar?

A

M-D width as wide or wider lingually than facially (Mandibular 2nd premolar as well)

42
Q

List the largest to smallest cusp size of a Maxillary Molars?

A

Largest ———————> Smallest

ML > MB > DB > DL

43
Q

Which cusp of the Maxillary Molars has the most variability from 1st, to 2nd, to 3rd?

A

DL cusp

44
Q

Which cusps of the Maxillary First Molar make up the Trigone?

A

MB + DB + ML

45
Q

Which tooth (other than the Maxillary Premolar(s)) resembles the Maxillary Premolar

A

2/3 of the Maxillary First Molar looks like Max Premolar

46
Q

Which two cusps make up the oblique ridge on a Maxillary First Molar?

A

DB + ML

47
Q

True or False

Oblique ridge of the Maxillary First Molar does not have the height as the marginal ridges?

A

False

Oblique ridge of the Maxillary First Molar has about the same height as the marginal ridge

48
Q

How many pits and which is the deepest is found on a Maxillary First Molar?

A

Medial, Central, Distal

Central = Deepest

49
Q

What are the developmental grooves of a Maxillary First Molar?

A

Buccal, Central, & Distolingual

50
Q

How many fossae are found on a Maxillary First Molar?

A

4 cusps

Medial, Central, Distal, Distolingual

51
Q

Which root is the longest and largest on a Maxillary First Molar? Widest MD than FL.

A

Lingual Root is the widest MD than FL of a Maxillary First Molar

52
Q

Which root has a cervical concavity on a Maxillary First Molar?

A

DB root

53
Q

Which root from the three in a Maxillary First Molar can have a possibility of having 2 pulp canals?

A

MB root of a Maxillary First Molar