##  [Crown-to-Root Ratio](/crown-root-ratio) 

  ##  [Crown-to-Root Ratio](https://health.quantumdictionary.io/crown-root-ratio-0) 

  

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**Health & Life Sciences Dictionary**

 







 

 

 

 



 

 

 

 

Definition

The proportion between the coronal length (clinical crown) and the radicular length (root portion remaining within the alveolus) of a tooth, typically calculated from calibrated radiographic measurements along the tooth’s long axis and expressed as a ratio (crown:length : root:length) or as crown:length divided by root:length.