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OA Final > 300 OA Facts > Flashcards

300 OA Facts Flashcards

1
Q

Primary teeth are ______ than permanent teeth are consequently more worn

A

Less mineralized

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2
Q

What is the difference in space from the primary to the permanent dentition?

A

2-4mm

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3
Q

Mamelons that remain beyond the age of 10 generally indicate an?

A

Open bite

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4
Q

Calcification of the primary roots is normally completed at age?

A

3-4 years of age

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5
Q

What is the usual pattern of eruption of primary teeth?

A

Central’s, laterals, 1st molars, canines, 2nd molars

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6
Q

The primate space develops in the Mx primary dentin between?

A

Between the lateral and canine

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7
Q

The mandibular primary primate space is located between?

A

Between the canine and first molar

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8
Q

The primary spacing for the anterior teeth is most frequently caused by the?

A

Growth of the dental arches

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9
Q

The direction of the primary enamel rods in cervical third is in the?

A

Occlusal direction

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10
Q

Primary molars differs from permanent molars in that their roots are more?

A

Divergent

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11
Q

The primary molar lacks an identifiable?

A

Root trunk

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12
Q

The primary Mn central incisor has the smallest _______ crown dimension?

A

Faciolingual

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13
Q

The primary and permanent Mx central incisor is the most?

A

Bilaterally symmetrical tooth

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14
Q

In delayed resorption of primary incisors the permanent incisors usually erupt?

A

Lingual (shark teeth)

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15
Q

The primary central incisor exhibits a prominent _______ on the facial and lingual surfaces?

A

Cervical ridge

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16
Q

From the facial view the crown of a primary canine has a?

A

Mesio-incisal slope longer than the distoincisal

17
Q

The cusp tip of the primary canine is generally off set to the?

A

Distal

18
Q

The Mx 1st primary molar has a crown that somewhat resembles a?

A

Permanent premolar

19
Q

The Mx 1st molar has roots that resembles a typical?

A

Permanent Mx molar

20
Q

The cervical ridge is most prominent for the primary MX teeth on the what surface of the 1st molar?

A

MF surface

21
Q

The primary MX 2nd molar is the primary tooth that generally has an?

A

Oblique ridge

22
Q

Primary 2nd molar is the only primary posterior tooth that has?

A

And oblique and transverse ridges and DL groove

23
Q

The primary end molar generally exhibits a ?

A

Cusp of carabelli

24
Q

What is the last primary teeth to erupt?

A

MX 2nd molars

25
Q

The primary 2nd molar exhibits more cusps than?

A

Primary 1st molar

26
Q

The primary tooth that has the most distinctly prominent facial cervical ridge is?

A

MN 1st molar

27
Q

Facial view of a primary MN 1st molar the CEJ is most apically positioned on the ?

A

Mesial 1/3

28
Q

The primary MN 1st molar usually exhibits a ?

A

Distal triangular fossa

Central fossa usually displaced to the distal

29
Q

The primary MN 1st molar has the MOST distinct?

A

Distinct transverse ridge

30
Q

The primary 1st MN molar does NOT look like any?

A

Permanent tooth

31
Q

The primary teeth that differ most from permanent teeth are?

A

MN 1st molars

32
Q

The highest and sharpest cusp on a primary Mn 1st molar is the ?

A

Mesiolingual

33
Q

The teeth whose function is primarily biting?

A

Incisors

34
Q

The Mx central has the greatest?

A

Faciolingual axial inclination

35
Q

The tooth that has the greatest cervical curvature (on mesial) of any other tooth?

A

Mx central

36
Q

The CEJ dips dippers on?

A

“Think Mx Central”

  • ant teeth than post teeth
  • Mx than MD
  • mesial side of tooth than distal
  • greatest on mesial of the MX central
37
Q

The only anterior teeth that are wider mesio-distally than faciolingually

A

Mx incisors

38
Q

Has the greatest MD crown dimension of any ANTERIOR tooth

A

Mx central

39
Q

This tooth has measurement that is nearly identical for inciso-cervical versus mesio-distal?

A

Mx central

OA Final (2 decks)

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