Eruption Sequence: Primary Teeth

Which of the following is the correct eruption sequence for primary teeth? (Select all that apply)

When do mandibular centrals typically erupt?

When do mandibular laterals typically erupt?

When do maxillary centrals typically erupt?

When do maxillary laterals typically erupt?

When do mandibular 1st molars typically erupt?

When do maxillary 1st molars typically erupt?

When do mandibular canines typically erupt?

When do maxillary canines typically erupt?

When do mandibular 2nd molars typically erupt?

When do maxillary 2nd molars typically erupt?

Canines erupt before 2nd molars in the primary dentition.

The tooth crown is ___ before eruption.

Roots of baby teeth are completely formed ____ after eruption.

Root resorption begins ______ after root completion.

Deciduous teeth normally erupt from posterior to anterior.

In which quadrants do canines erupt after 1st molars?

Eruption Sequence of Primary Teeth

Primary teeth eruption follows a specific sequence, starting with mandibular centrals and ending with maxillary second molars.
The general eruption order is as follows:
- Mandibular Centrals, Mandibular Laterals, Maxillary Centrals, Maxillary Laterals, Mandibular 1st Molar, Maxillary 1st Molar, Mandibular Canine, Maxillary Canine, Mandibular 2nd Molar, Maxillary 2nd Molar.

Eruption Timeline

Mandibular Centrals typically erupt at around 6 months.
Mandibular Laterals erupt at approximately 7 months.
Maxillary Centrals appear at about 7.5 months.
Maxillary Laterals emerge around 9 months.
Mandibular 1st Molars show up at approximately 12 months.
Maxillary 1st Molars erupt at around 14 months.
Mandibular Canines usually appear at about 16 months.
Maxillary Canines emerge at around 19 months.
Mandibular 2nd Molars erupt at approximately 20 months.
Maxillary 2nd Molars are the last primary teeth to erupt, typically at 24 months.

Eruption Characteristics

Canines erupt after the first molars but before the second molars within primary dentition, highlighting their unique timing.
The crown of baby teeth is fully formed prior to eruption, ensuring readiness for emergence.
The roots of primary teeth complete their formation approximately one year after their eruption.
Root resorption of primary teeth begins one year after root development is complete, marking a transitional phase for dental development.

General Eruption Pattern

Deciduous teeth normally erupt from anterior (front) to posterior (back) in the mouth, with the exception of canines, which erupt after the first molars in each quadrant.

Test your knowledge on the eruption sequence of primary teeth with this flashcard quiz. It covers the timeline of when different primary teeth appear in the mouth, including mandibular and maxillary teeth. Perfect for dental students or anyone interested in early childhood dentistry.