Memorise - Eruption Dates

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Questions and Answers

At what age does the permanent maxillary central incisor typically erupt?

  • 7-8 years (correct)
  • 6-7 years
  • 17-21 years
  • 8-9 years

Mandibular teeth generally erupt earlier than maxillary teeth.

True (A)

What is the eruption sequence for primary teeth in each arch?

A > B > D > C > E

The lower 'A' teeth erupt at approximately ______ months.

<p>6.5</p> Signup and view all the answers

Match the following permanent teeth with their approximate eruption ages:

<p>Maxillary Central Incisor = 7-8 years Mandibular First Molar = 6-7 years Maxillary Second Molar = 12-13 years Mandibular Lateral Incisor = 7-8 years</p> Signup and view all the answers

What is the typical eruption age range for the primary mandibular canine (cuspid)?

<p>17-23 months (D)</p> Signup and view all the answers

The permanent third molars (wisdom teeth) typically erupt between the ages of 6 and 7 years.

<p>False (B)</p> Signup and view all the answers

Around what age do the roots of primary teeth typically complete after eruption (in years)?

<p>1-1.5</p> Signup and view all the answers

Which of the following permanent teeth erupts the latest?

<p>Maxillary Third Molar (wisdom tooth) (A)</p> Signup and view all the answers

The primary upper 'B' teeth typically erupt around ______ months.

<p>8</p> Signup and view all the answers

The eruption sequence in each arch for primary teeth is ______, (A, B, D, C, E).

<p>ABDCE</p> Signup and view all the answers

There is a one ______ gap between the eruption of the 2's, or lateral incisors, and other teeth.

<p>year</p> Signup and view all the answers

Mandibular teeth erupt earlier than maxillary teeth by about a ______ up to seven years.

<p>year</p> Signup and view all the answers

According to the image, the lower central incisor erupts at ______ months.

<p>6-10</p> Signup and view all the answers

The maxillary first molar is expected to erupt between ______ months.

<p>13-19</p> Signup and view all the answers

The upper lateral incisor sheds around ______ years of age.

<p>7-8</p> Signup and view all the answers

The mandibular third molar, or wisdom tooth, has an eruption timeline of ______ years old.

<p>17-21</p> Signup and view all the answers

According to the image, the roots of primary teeth complete approximately 1 to 1.5 ______ after eruption.

<p>years</p> Signup and view all the answers

The initials ______ represent the eruption sequence of the primary teeth, where the central incisors erupt first, followed by the lateral incisors, canines, first molars and finally the second molars.

<p>ABDCE</p> Signup and view all the answers

Based on the image, the initial calcification of primary teeth occurs ______ months in utero.

<p>3-6</p> Signup and view all the answers

Match the primary tooth with its approximate eruption time.

<p>Tooth A = 6.5 - 7 months Tooth B = 7.5 - 8 months Tooth C = 16 - 20 months Tooth D = 12 - 16 months</p> Signup and view all the answers

Match the permanent maxillary tooth with its typical eruption time.

<p>Central incisor = 7-8 years Canine (cuspid) = 11-12 years First molar = 6-7 years Second molar = 12-13 years</p> Signup and view all the answers

Match the primary tooth type with its typical eruption timeframe.

<p>Central incisor = 6-12 months Lateral incisor = 8-16 months Canine = 16-23 months First molar = 13-19 months</p> Signup and view all the answers

Match the upper primary teeth with the order in which they erupt.

<p>A = Central incisor B = Lateral incisor C = First Molar D = Canine</p> Signup and view all the answers

Relate the successional teeth and the sequence with the correct approximate time of eruption (permanent dentition).

<p>First molar = 6-7 years Central incisor (mandibular) = 6-7 years First premolar = 10-12 years Second molar = 11-13 years</p> Signup and view all the answers

Match the shedding time (exfoliation) of the primary teeth.

<p>Central incisor = 6-7 years Lateral incisor = 7-8 years First molar = 9-11 years Canine = 10-12 years</p> Signup and view all the answers

Match the tooth (either primary or permanent) with its calcification starting time in utero or after birth.

<p>Primary teeth calcification = 3-6 months <em>in utero</em> Mandibular first molar calcification = At birth Maxillary central incisor calcification = 3-4 months after birth Lateral incisor calcification = 10-12 months after birth</p> Signup and view all the answers

Match the permanent tooth with its average root completion time after eruption.

<p>Permanent teeth = 1-1.5 years after eruption Mandibular central incisor = Around 9 years Maxillary canine = 13-15 years Mandibular second premolar = 12-14 years</p> Signup and view all the answers

Match the teeth with the approximate time of their eruption in children, considering the difference between mandibular and maxillary teeth.

<p>Mandibular central incisors = 6-10 months Maxillary central incisors = 8-12 months Mandibular first molars = 14-18 months Maxillary first molars = 13-19 months</p> Signup and view all the answers

Flashcards

Eruption of the lower central incisor (deciduous)

6-10 months

Eruption of the upper central incisor (deciduous)

8-12 months

Eruption of the upper lateral incisor (deciduous)

9-13 months

Eruption of the lower lateral incisor (deciduous)

10-16 months

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Eruption of the upper cuspid (canine) (deciduous)

16-22 months

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Eruption of the lower cuspid (canine) (deciduous)

17-23 months

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Eruption of the upper first molar (deciduous)

13-19 months

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Eruption of the lower first molar (deciduous)

14-18 months

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Eruption of the upper second molar (deciduous)

25-33 months

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Eruption of the lower second molar (deciduous)

23-31 months

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Eruption of permanent mandibular central incisor

6-7 years

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Eruption of permanent mandibular lateral incisor

7-8 years

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Eruption of permanent mandibular canine (cuspid)

9-10 years

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Eruption of permanent mandibular first molar

6-7 years

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Eruption of permanent mandibular first premolar (bicuspid)

10-12 years

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Eruption of permanent mandibular second premolar (bicuspid)

11-12 years

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Eruption of permanent mandibular second molar

11-13 years

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Eruption of permanent mandibular third molar (wisdom tooth)

17-21 years

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Eruption of permanent maxillary central incisor

7-8 years

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Eruption of permanent maxillary third molar (wisdom tooth)

17-21 years

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Eruption of permanent maxillary second molar

12-13 years

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Eruption of permanent maxillary first premolar (bicuspid)

10-11 years

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Eruption of permanent maxillary second premolar (bicuspid)

10-12 years

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Eruption of permanent maxillary lateral incisor

8-9 years

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Eruption of permanent maxillary canine (cuspid)

11-12 years

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Study Notes

  • Maxillary permanent teeth eruption:

    • 6-7 years: 1st molar (6)
    • 7-8 years: Central incisor (1)
    • 8-9 years: Lateral incisor (2)
    • 10-11 years: 1st premolar (4)
    • 10-12 years: 2nd premolar (5)
    • 11-12 years: Canine (3)
    • 12-13 years: 2nd molar (7)
    • 17-21 years: 3rd molar (8)
  • Mandibular permanent teeth eruption:

    • 6-7 years: 1st molar (6), Central incisor (1)
    • 7-8 years: Lateral incisor (2)
    • 9-10 years: Canine (3)
    • 10-12 years: 1st premolar (4)
    • 11-12 years: 2nd premolar (5)
    • 11-13 years: 2nd molar (7)
    • 17-21 years: 3rd molar (8)
  • Mandibular teeth erupt earlier than maxillary teeth by about a year, and up to 7 years.

  • Deciduous teeth eruption sequence (uppers and lowers): A > B > D > C > E

  • Deciduous teeth eruption dates:

    • 6.5 months: Lower A (Central incisor)
    • 7 months: Upper A (Central incisor)
    • 7.5 months: Lower B (Lateral incisor)
    • 8 months: Upper B (Lateral incisor)
    • 12-16 months: D (1st Molar)
    • 16-20 months: C (Canine)
    • 1.75-2.5 years: E (2nd Molar)

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