Izzy never liked to chew on things either, well other than her finger!
You could look into amber necklaces, I swear by these things (I never stop recommending them!) this explains all about them http://www.amber-teething-necklaces.co.uk/pages/Baby-teething-necklace.html
Izzy has had hers on for some time now (well til she (DAN!) lost it last week) and you honestly wouldn't know teeth have come though - and thats big back teeth!