Eruption Sequence: Permanent Teeth

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Questions and Answers

What is the eruption sequence of permanent teeth? (Select all that apply)

  • Mandibular 1st Molar (correct)
  • Maxillary 2nd Premolar (correct)
  • Maxillary 1st Premolar (correct)
  • Mandibular 1st Premolar (correct)
  • Mandibular 3rd Molar (correct)
  • Maxillary 1st Molar (correct)
  • Maxillary 3rd Molar (correct)
  • Maxillary Central Incisor (correct)
  • Mandibular Lateral Incisor (correct)
  • Mandibular 2nd Molar (correct)
  • Mandibular Canine (correct)
  • Mandibular Central Incisor (correct)
  • Mandibular 2nd Premolar (correct)
  • Maxillary Canine (correct)
  • Maxillary 2nd Molar (correct)
  • Maxillary Lateral Incisor (correct)

When do the Mandibular 1st Molars erupt?

6-7 years

When do the Maxillary 1st Molars erupt?

6-7 years

When do Mandibular Central Incisors erupt?

<p>6-7 years</p> Signup and view all the answers

When do Mandibular Lateral Incisors erupt?

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

When do Maxillary Central Incisors erupt?

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

When do Maxillary Lateral Incisors erupt?

<p>8-9 years</p> Signup and view all the answers

When do Mandibular Canines erupt?

<p>9-10 years</p> Signup and view all the answers

When do Mandibular 1st Premolars erupt?

<p>10-11 years</p> Signup and view all the answers

When do Maxillary 1st Premolars erupt?

<p>10-11 years</p> Signup and view all the answers

When do Mandibular 2nd Premolars erupt?

<p>11-12 years</p> Signup and view all the answers

When do Maxillary 2nd Premolars erupt?

<p>11-12 years</p> Signup and view all the answers

When do Maxillary Canines erupt?

<p>11-12 years</p> Signup and view all the answers

When do Mandibular 2nd Molars erupt?

<p>11-13 years</p> Signup and view all the answers

When do Maxillary 2nd Molars erupt?

<p>12-13 years</p> Signup and view all the answers

When do Mandibular 3rd Molars erupt?

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

When do Maxillary 3rd Molars erupt?

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

When is approximately 50% of a permanent tooth's root formation complete at eruption?

<p>50%</p> Signup and view all the answers

How long after eruption are the roots of permanent teeth completely formed?

<p>2-3 years</p> Signup and view all the answers

When is the enamel (crown) of a permanent tooth complete?

<p>3 years before eruption</p> Signup and view all the answers

What teeth erupt after the 1st molars and anterior teeth, but before the premolars?

<p>Mandibular Canines</p> Signup and view all the answers

What teeth erupt after the 1st molars, anteriors, and premolar eruption?

<p>Maxillary Canines</p> Signup and view all the answers

Except for the first molars, the mandibular teeth follow a perfect ___ to _____ eruption period.

<p>Anterior to Posterior</p> Signup and view all the answers

Flashcards

Mandibular 1st Molar eruption

Erupts around 6-7 years of age. Often the first permanent tooth to appear.

Maxillary 1st Molar eruption

Erupts around 6-7 years of age.

Mandibular Central Incisors eruption

Erupts around 6-7 years of age.

Mandibular Lateral Incisors eruption

Erupts around 7-8 years of age.

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Maxillary Central Incisors eruption

Erupts around 7-8 years of age.

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Maxillary Lateral Incisors eruption

Erupts around 8-9 years of age.

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Mandibular Canines eruption

Erupts around 9-10 years of age.

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Mandibular 1st Premolars eruption

Erupts around 10-11 years of age.

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Maxillary 1st Premolars eruption

Erupts around 10-11 years of age.

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Mandibular 2nd Premolars eruption

Erupts around 11-12 years of age.

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Maxillary 2nd Premolars eruption

Erupts around 11-12 years of age.

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Maxillary Canines eruption

Erupts around 11-12 years of age.

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Mandibular 2nd Molars eruption

Erupts around 11-13 years of age.

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Maxillary 2nd Molars eruption

Erupts around 12-13 years of age.

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Mandibular 3rd Molars eruption

Erupts around 17-21 years of age.

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Maxillary 3rd Molars eruption

Erupts around 17-21 years of age.

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Permanent root formation at eruption

Approximately 50% of root formation is complete when a permanent tooth erupts.

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How long to complete root formation?

Roots of permanent teeth are completely formed 2-3 years after eruption.

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When is enamel complete?

Enamel formation of a permanent tooth is complete approximately 3 years prior to eruption.

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Teeth erupting before premolars

The Mandibular Canines erupt after the 1st molars and anterior teeth, but before the premolars.

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Teeth erupting after premolars

Maxillary Canines erupt after the 1st molars, anteriors, and premolar eruption.

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Mandibular eruption pattern

Except for the first molars, the mandibular teeth follow a perfect anterior to posterior eruption period.

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Study Notes

Eruption Sequence of Permanent Teeth

  • The eruption sequence begins with the Mandibular 1st Molar and Maxillary 1st Molar, both erupting at 6-7 years.
  • Mandibular Central Incisor and Mandibular Lateral Incisor follow, erupting also at 6-7 years and 7-8 years respectively.
  • Maxillary Central Incisor erupts at 7-8 years, while Maxillary Lateral Incisor erupts at 8-9 years.
  • The Mandibular Canine erupts between 9-10 years.
  • Both Mandibular 1st Premolar and Maxillary 1st Premolar erupt at 10-11 years.
  • The Mandibular 2nd Premolar and Maxillary 2nd Premolar erupt at 11-12 years.
  • The Maxillary Canine also erupts at 11-12 years.
  • Mandibular 2nd Molar erupts between 11-13 years, while Maxillary 2nd Molar appears between 12-13 years.
  • Mandibular 3rd Molar and Maxillary 3rd Molar erupt later, around 17-21 years.

Root and Enamel Formation

  • About 50% of a permanent tooth's root formation is complete upon eruption.
  • Roots of permanent teeth are fully formed 2-3 years post-eruption.
  • The enamel (crown) of a permanent tooth is completely formed 3 years before eruption.

Tooth Eruption Patterns

  • Mandibular Canines erupt after the first molars and anterior teeth, but before premolars.
  • Maxillary Canines erupt following the first molars, anteriors, and premolar eruption.
  • Except for the first molars, mandibular teeth follow a perfect anterior to posterior eruption pattern.

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