Well OK, some slow down, with age.. but my oldest male that will be 16 on September 9th still will shred things are times... granted his teeth are not what they used to be.... whenever I thought that they had outgrown these things... they would do somthing to remind me that once a Basenji, always a Basenji and to expect the unexpected...
We have to keep our shoes in confinement or she will eat them, she has eaten teeth, glasses, baseball hats, shoes, flip flops, stuffed animals especially beanie babies, blue tooth headset, cell phone and several remotes one of which belonged to the cable company, oh yeah and the latest she ate the leather pillow to my couch (i'll post that pic later). Here's the thing though, if she is left out of her bed and she knows someone else is in the house she will destroy stuff, but if no one else is home and we leave her out she is fine. Oh yeah she ate the screen from the sliding glass door and the woodwork from around the door. She has plenty of toys and bones it's just what she does. We love her all the same. 
Hi Deborah. I used to live in Bucks County. You ever need a new vet, try Pets Best Friends. My friend Brenda works there as a vet tech and might be able to help you find a positive trainer.
Sometimes very mouthy dogs can be taught to have soft mouths and learn no teeth, but it does seem for some the putting of human parts in mouth is almost irresistible.
Kathy Davis' article for no bite works, but forget the yelping advice… many B's consider that the equivalent of a squeak toy and do it more.
http://www.veterinarypartner.com/Content.plx?P=A&C=23&A=1128&S=0&EVetID=3001644
For lessons in all obedience, but a truly positive trainer, try this site.
http://www.clickerlessons.com/index.htm
Mary is down in Delaware, but you can contact her also for advice. She is superb.
