Hello mykzss!
First things first... Welcome to the OB! you'll find it to be the best site around when it comes to orchids (8K+ members!
)
Now about your Dend... is it potted in soil?
This is what I would do, repot in fine bark let the canes sit on top of the media, let it REALLY dry out in between waterings, and fertilize if you see active growth.
Don't freak out if the canes go leaf-less, they do that from time to time, they'll come back
In order for them to rebloom, give it a good amount of indirect light.
You will find more detailed information here
http://www.orchidboard.com/Dendrobiu...ure-Care-Sheet
And I'm sure others will provide more input. Congratulations on your Dend!