Teeth Development Timeline

Questions and Answers

At what age does the Upper 1st Premolar typically erupt?

9-11.75 years

At what age does the Lower 2nd Molar typically erupt?

12 years

When does the Upper Canine typically emerge?

12-14 years

At what age is the Lower 1st Molar fully developed?

12-13 years Signup and view all the answers

When does the Upper 1st Molar typically erupt?

6 years Signup and view all the answers

At what age is the Lower 2nd Premolar typically fully developed?

12-13 years Signup and view all the answers

At what age do the Upper Central Incisors erupt in primary teeth?

7.5 months Signup and view all the answers

How long does it take for the root of the Upper Canine to complete in primary teeth?

3 years Signup and view all the answers

At what age do the Lower 1st Molars erupt in primary teeth?

12-16 months Signup and view all the answers

How long does it take for the crown of the Lower Central Incisor to complete in primary teeth?

4 months Signup and view all the answers

At what age do the Upper Central Incisors erupt in permanent teeth?

7-8 years Signup and view all the answers

How long does it take for the root of the Upper Lateral Incisor to complete in permanent teeth?

4-5 years Signup and view all the answers

At what age do the Lower Lateral Incisors erupt in permanent teeth?

7-8 years Signup and view all the answers

How long does it take for the crown of the Upper 2nd Molar to complete in permanent teeth?

4-5 years Signup and view all the answers

Study Notes

Primary Teeth

Upper central incisor eruption starts at 7.5 months, calcification begins at 4 months, and root completion occurs at 2 years.
Lower central incisor eruption starts at 6.5 months, calcification begins at 4.5 months, and root completion occurs at 2 years.
Upper lateral incisor eruption starts at 8 months, calcification begins at 4.5 months, and root completion occurs at 2 years.
Lower lateral incisor eruption starts at 7 months, calcification begins at 4.5 months, and root completion occurs at 2 years.
Upper canine eruption starts between 16-20 months, calcification begins at 5 months, and root completion occurs at 2-3 years.
Lower canine eruption starts between 16-20 months, calcification begins at 5 months, and root completion occurs at 2-2.5 years.
Upper first molar eruption starts between 12-16 months, calcification begins at 5 months, and root completion occurs at 2-2.5 years.
Lower first molar eruption starts between 12-16 months, calcification begins at 5 months, and root completion occurs at 2-2.5 years.
Upper second molar eruption starts between 20-30 months, calcification begins at 6 months, and root completion occurs at 3 years.
Lower second molar eruption starts between 20-30 months, calcification begins at 6 months, and root completion occurs at 3 years.

Permanent Teeth

Upper central incisor eruption starts between 7-8 years, calcification begins at 3-4 months, and root completion occurs at 10 years.
Lower central incisor eruption starts between 6-7 years, calcification begins at 3-4 months, and root completion occurs at 9 years.
Upper lateral incisor eruption starts between 8-9 years, calcification begins at 10 months, and root completion occurs at 11 years.
Lower lateral incisor eruption starts between 7-8 years, calcification begins at 3-4 months, and root completion occurs at 10 years.
Upper canine eruption starts between 11-12 years, calcification begins at 4-5 months, and root completion occurs at 13-15 years.
Lower canine eruption starts between 9-11.75 years, calcification begins at 4-5 months, and root completion occurs at 12-14 years.
Upper first premolar eruption starts between 9.75-11.5 years, calcification begins at 1.5-1.75 years, and root completion occurs at 12-13 years.
Lower first premolar eruption starts between 9.25-11.75 years, calcification begins at 1.75-2 years, and root completion occurs at 12-13 years.
Upper second premolar eruption starts between 9.5-12 years, calcification begins at 2-2.25 years, and root completion occurs at 13-14 years.
Lower second premolar eruption starts between 9-12 years, calcification begins at 2.25-2.5 years, and root completion occurs at 13-14 years.
Upper first molar eruption starts at 6 years, calcification begins at birth, and root completion occurs at 9 years.
Lower first molar eruption starts at 6 years, calcification begins at birth, and root completion occurs at 9 years.
Upper second molar eruption starts at 12 years, calcification begins at 2.5-3 years, and root completion occurs at 15 years.
Lower second molar eruption starts at 12 years, calcification begins at 3 years, and root completion occurs at 15 years.
Upper third molar eruption starts between 17-21 years, calcification begins at 7-9 years, and root completion occurs between 18-25 years.
Lower third molar eruption starts between 17-21 years, calcification begins at 8-10 years, and root completion occurs between 18-25 years.