Molar Comparisons Flashcards by Jodeci Malixi

Q

Teeth included in maxillary molars

A

1st molars = 1.6, 2.6

2nd molars = 1.7, 2.7

3rd molars = 1.8, 2.8

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Q

Maxillary muccal view: give the mesio-distal crown dimensions from largest to smallest

A

1st > 2nd > 3rd

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Q

Maxillary buccal view: give the occlusal-cervical crown dimensions from largest to smallest

A

1st > 2nd > 3rd

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Q

Maxillary buccal view: compare the mesio-buccal and disto-buccal cusp widths of all 3 molars

A

1st = M-B > D-B
2nd = M-B >> D-B
3rd = M-B >>> D-B

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Q

Maxillary buccal view: compare the mesio-buccal and disto-buccal cusp heights of each molar

A

1st = M-B = D-B
2nd = M-B > D-B
3rd = M-B > D-B

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Q

Maxillary buccal view: compare the buccal developmental grooves of the molars

A

On 2nd molar, the buccal developmental groove is farther distal, shorter, with no pit at the end

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Q

Maxillary buccal view: root lengths

A

1st = 2nd

3rd is shortest

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Q

Maxillary buccal view: root separation

A

1st > 2nd > 3rd

NOTE: Fusion of roots common on 3rd and somtimes on 2nd

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Q

Maxillary buccal view: root curvature

A

Distal inclincation: 3rd > 2nd > 1st

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Q

Define the root trunk

A

The portion of the root located between the CEJ and the furcation

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Q

Maxillary buccal view: root trunk dimensions

A

3rd > 2nd > 1st

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Q

Maxillary lingual view: 5th cusp (cusp of Carabelli)

A

Present on 70% of 1st molars

Located on P aspect of mesio-palatal cusp

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Q

Maxillary lingual view: disto-palatal cusp size

A

1st > 2nd (both width and height)

Absent on 3rd

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Q

Maxillary-lingual view: disto-palatal developmental groove

A

Farther distal and shorter on the 2nd

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Q

Maxillary-lingual view: palatal root width

A

1st > 2nd > 3rd

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Q

Maxillary lingual view: location of palatal root apex

Study These Flashcards

A

1st = aligned with palatal groove
2nd = aligned with disto-palatal cusp tip
3rd = shifted distally

Q

Maxillary occlusal view: outline forms

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A

1st and 2nd = rhomboidal

3rd = more bulbous and rounded

Q

Maxillary occlusal view: bucco-palatal crown dimension

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A

1st and 2nd approx. equal

3rd is smaller

Q

Maxillary occlusal view: palatal crown width

Study These Flashcards

A

1st > 2nd > 3rd

Q

Maxillary occlusal view: distal crown taper

Study These Flashcards

A

3rd > 2nd > 1st

Q

Maxillary occlusal view: mesial vs. distal cusp sizes

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A

Mesio-buccal and mesio-palatal: 1st = 2nd
Disto-buccal and disto-palatal: 1st > 2nd

Q

Maxillary occlusal view: disto-palatal cusp size

Study These Flashcards

A

1st > 2nd

Absent on 3rd

Q

Maxillary occlusal view: Oblique ridge size

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A

1st > 2nd > 3rd

Q

Numbers of mandibular molars

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A

1st = 3.6, 4.6

2nd = 3.7, 4.7

3rd = 3.8, 4,8

Mandibular buccal view: mesio-distal crown dimensions

1st \> 2nd \> 3rd

Mandibular buccal view: number of buccal cusps

1st = 3 2nd and 3rd = 2

Mandibular buccal view: number of buccal grooves

1st = 2 2nd and 3rd = 1

Mandibular buccal view: root length

1st \> 2nd \> 3rd

Mandibular buccal view: root separation

1st \> 2nd \> 3rd

Mandibular buccal view: root curvature

Distal inclination: 3rd \> 2nd \> 1st

Mandibular buccal view: root trunk height

3rd \> 2nd \> 1st

Mandibular occlusal view: outline form

1st = pentagonal 2nd = rectangular 3rd = round/ ovoid

Mandibular occlusal view: bucco-lingual crown dimension

1st \> 2nd \> 3rd

Mandibular occlusal view: number of cusps

1st = 5 2nd and 3rd = 4

Mandibular occlusal view: mesio-buccal prominence

Found on second molars

Mandibular occlusal view: proximal crown form

1st = straight and converge towards the lingual 2nd = curved 3rd = more curved

Mandibular occlusal view: Developmental groove patterns

1st = zig-zag 2nd = plus-sign 3rd = no pattern