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Dental Anatomy > Mandibular Molars > Flashcards

Mandibular Molars Flashcards

1
Q

Name the five cusps of the mandibular first molar

A 
Mesiolingual 
Mesiobuccal
Distolingual
Distobuccal
Distal
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2
Q

Name the roots of the mandibular first molar

A

Distal and mesial

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3
Q

The mandibular first molar is wider _____ than ______

A

Mesiodistally than buccuolingually (by about 1mm)

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4
Q

Which root of the mandibular first molar is most broad?

A

Mesial root

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5
Q

True or false… if viewed from the lingual view, you can see all five cusps of the mandibular first molar

A

False… you can see all five from the buccal view

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6
Q

Why can you see the lingual cusps from the buccal view of the mandibular first molar?

A

Lingual cusps are longer

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7
Q

Name the developmental grooves of the mandibular first molar that can be seen from the buccal view

A

Mesiobuccal

Distobuccal

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8
Q

The two buccal cusps of the mandibular first molar are relatively ____ with ____ curvature of the cusp ridge

A

Flat

Less

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9
Q

Which cusp viewed from the buccal view of the mandibular first molar is smaller and more pointed?

A

Distal cusp

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10
Q

On the mandibular first molar, buccal view, which cusp is the widest?

A

Mesiobuccal

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11
Q

Out of the developmental grooves on the buccal surface of the mandibular first molar, which is shortest?

A

Mesiobuccal is shortest and ends mid crown. Situated a little mesial to root bifurcation

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12
Q

The mesial outline from the buccal view of the mandibular first molar is _____ at the cervical third and _____ at contact area

A

Concave

Convex

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13
Q

The mandibular first molar, buccal view, the distal outline is ____ above the cervical line, then _____ at contact area

A

Straight

Convex

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14
Q

The mandibular first molar, in the buccal view, the mesiodistal width is _____ wider at contact than at the cervix

A

1.5-2

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15
Q

True or false… from the buccal view of the mandiblaur first molar, you may see the mesial surface of the distal root and mesial surface of mesial root

A

False. You can see the distal portions of each of the roots

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16
Q

From the lingual view of the mandibular first molar, roots are about 1mm ____ from the lingual

A

Longer

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17
Q

From the buccal view of the mandibular first molar, the distal outline of the mesial root is _____ from bifurcation to apex

A

Concave

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18
Q

On the mandibular first molar, which root is more curved?

A

Mesial root

19
Q

On the mandibular first molar, both roots are ___ at the buccal than they are at the lingual

A

Wider

20
Q

The point of bifurcation of the roots from the buccal view of the mandibular first molar is ____ below the cervical line

A

3mm

21
Q

From the lingual view of the mandibular first molar, which cusps are seen?

A

Two lingual, and distal cusp

22
Q

True or false. From the lingual view of the mandibular first molar, you cannot see the buccal cusps because the two lingual cusps are too tall

A

True

23
Q

On the mandibular first molar the ______ cusp is the wides mesiodistal and cusp tip is ____

A

Mesiolingual

Highest

24
Q

The _____ separates the two lingual cusps and goes down onto the lingual surface for a ____ distance

A

Lingual developmental groove

Short

25
Q

On the mandibular first molar, Where the lingual cusp ridges meet at the groove, the angle is ____ more so than the angels at the cusp tips

A

Obtuse

26
Q

What is a characteristic of the cervical line from the lingual view of the mandibular first molar?

A

Irregular with a point in direction of the bifurcation below it

27
Q

True or false… on the mandibular first molar, the bifurcation groove is almost in line with the lingual developmental groove

A

True

28
Q

From the mesial view of the mandibular first molar, you can see a _____ _____ to crown with its lingual tilt

A

Rhomboidal

29
Q

On the mandibular first molar, the buccolingual measurement of crown is greater at the ___ than the ____

A

Mesial

Distal

30
Q

The buccolingual measurement of crown and root of the mandiblaur first molar is 2mm ____ than the measurement of the second premolar

A

Greater

31
Q

The ____ cusp of the mandibular first molar is longer than the buccal cusp in the premolar

A

Lingual

32
Q

From the mesial view of the mandibular first molar, the outline of the buccal is ____ from just above the cervical line with the buccal cervical ridge located in the ______ third

A

Convex

Cervical

33
Q

On the mandibular first molar, the mesiobuccal cusp is just above the ____ third of the mesial root

A

Buccal

34
Q

Both of the roots on the mandibular first molar are wider at the _____ than the _____

A

Buccal

Lingual

35
Q

On the mandibular first molar, which root is more curved?

A

Mesial root

36
Q

The bifurcation groove is almost in line with the ____ developmental groove

A

Lingual

37
Q

The buccolingual measurement of the crown is greater at the ____ than the ____

A

Mesial

Distal

38
Q

Which cusp on the mandibular first molar is the tallest?

A

Mesiolingual

39
Q

Which tooth, mandibular first or second molar, has a cervical line that points more sharply towards the bifurcation?

A

Mandibular second molar

40
Q

True or false… the mandibular second molar has a crown and root that converge lingually to a greater degree than the first

A

False, it is to a lesser degree than the first molar

41
Q

Which cusp is present in the mandibular first molar but no the mandibular second?

A

Distal cusp

42
Q

Which tooth has its occlusal surface divided into 4 equal parts, dividing by right angles?

A

Mandibular second molar

43
Q

If you are missing your mandibular right third molar, which tooth is likely to also be missing.. mandibular left third molar or maxillary right third molar?

A

Mandibular left third molar

Dental Anatomy (5 decks)

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