I don't know how long it has been since Snickers was able to chew on anything, but from seeing his reaction to the chew flip tonight, I'd say it's been awhile. The dental was a definite success.
Also, he's not solid at it by any means, but with encouragement and a little work, he will retrieve. Granted it was Ollie's furry mouse, but he would bring it back and gave me a couple of little kisses in the process. I imagine he'd love a squeaky toy, but one wouldn't last five seconds once Haley grabbed it.
The clinic has posted a couple of pics (before/after) on their Facebook page.