Dura-Ace 9spd and 10spd compatability

Can I use a 10spd chain and cassette with a 9spd drivetrain (and everything else including bar-end shifters)?

My 9spd chain is bent. I have a brand new 10spd lying around that I’d like to use to save some $$. I also have a 10spd cassette on my roadbike that I was thinking of using for this tri bike (p3)…esp since I was hoping to use the 10spd chain.

Any help is appreciated.

Read cousin elwood’s response…i think it is post 8…new shifters and new chain…nothing else

http://forum.slowtwitch.com/gforum.cgi?post=528565;search_string=search_string;#528565
.