A51 According to the Compendium:
Attack: Constitution vs. AC. Make the attack three times.
Hit: Constitution modifier damage.
That means that there is no weapon attack involved. Just the fact that you use the weapon in character doesn't mean that you do the weapon's damage. My guess for describing this would be saying you use the flat edge of the blade. If you just mean in general, I would say no, because it says "make the attack three times".