##  [Root Length](/root-length) 

  ##  [Root Length](https://health.quantumdictionary.io/root-length-0) 

  

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**Health & Life Sciences Dictionary**

 







 

 

 

 



 

 

 

 

Definition

Linear distance measured along a tooth root’s long axis from a specified most‑coronal reference point (for example, the cementoenamel junction or a defined coronal root margin) to the root apex; the measurement’s meaning requires specification of the coronal reference, imaging or specimen orientation, and whether the reported value follows the curve of the root (arc length) or a straight‑line dist