Vertucci's classification for root canal morphology

Diagrammatic representation of Vertucci's classification for root canal morphology (Vertucci et al. 1974)

 : Type I

✓ A single channel from the pulp chamber to the end of the channel (configuration 1-1) 

 : Type II

✓ Two separate channels exit the chamber, but merge at the end of the channel to form a single channel (configuration 1-2)v 

: Type III

✓ A single channel that is split into two parts and subsequently merged to exit as one (1-2-1 configurat 

: Type IV

✓ Two separate channels from the pulp chamber to the end of the channel (configuration 2-2)v 

: Type V

✓ Asingle channel that exits the housing and splits into two separate channels at the end of the channel (configuration 1-2).

Type VI :

✓ Two separate canals exit the pulp chamber, merge into the root body, and divide again into two separate canals shorter than the end of the canal (configuration 2-1-2).

Type VII :

✓ A single channel that divides, merges, and exits into two separate short channels from the end of the channel (1-2-1-2 configuration).

: Type VIII

✓ Three separate channels from the pulp chamber to the end of the channel (configuration 3-3) 
A single L that exits the chamber and divides into two separate channels at the end of the channel (configuration 1-2). Type VI: Two separate canals exit the pulp chamber, merge into the root body, and divide again into two separate canals shorter than the end of the canal (configuration 2-1-2). Type VII: A single channel that divides, merges, and exits into two separate short channels from the end of the channel (1-2-1-2 configuration). Type VIII: three separate canals from the pulp chamber to the end of the canal (configuration 3-3).