Should be taken off the market!
If you love your Dog, I'm sure like myself you do! :)
Please do not play Russian Roulette with his or her wellbeing. Whilst some dogs appear to be ok with these pointless denture sticks, there are allot of Dogs however who have a very adverse and serious reaction to them!
My Jack Russell, after consuming just half a stick spent 12 hours vomiting. It would appear that many other Dog owners have experienced the same issue.
Don't take my word for it, check out various forums and reviews.