A typical 1st bicuspid has 2 canals.  In this case, there are most likely two roots (Fig.3): buccal (Fig.4 green dashed line) and lingual (Fig.5 pink dashed line). 

Possible Bifurcation

Xin Wei, DDS, PhD, MS 1st edition 12/21/2014, last revision 01/19/2018