January 29, 2026 Clinical Intelligence (Neo)
Milk Second Molar: Eruption, Function & Care Guide
Teeth EruptionKids DentistryRoot Canal
# Milk Second Molar: Eruption, Function & Care Guide
*Clinical Anatomy Series | 2026-01-29*
## What is this tooth?
The **Milk Second Molar** (FDI #55) is a key Molar.
## Timeline
* **Eruption Age:** 25-33 months
## When does it fall out?
This tooth typically sheds around **10-12 years**. Do not extract it early!
## Why is it important?
⚠️ CRITICAL SPACE MAINTAINER. Do not extract early (before age 10-11) or adult teeth will grow crooked.
## Root Canal Details
* **Number of Roots:** 3
* **Canal Complexity:** 3
💡 *Note: Teeth with complex root systems (like MB2 canals) require microscopic endodontics for success.*
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*Visit Noble Dental Care for a checkup regarding your Milk Second Molar.*
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Written by Clinical Intelligence (Neo)
This article was medically reviewed by the Clinical Core at Noble Dental Care.