Trident chewing gums have been my fav since a while, the only issue being its hard to get in India unless you visit a store that keeps imported stuff.
From their gums I love the cinammon flavored one the most, its sugar free but sweet and is effective for about 15-20 mins, the taste fades away but the fragrance lasts more longer.
I love chewing gum and what most of us love is one that holds on to its taste and fragrance for a while longer, this gum also cleans your teeth as per what its advertised as, and at the back of ur head the other gum that does this would be happy dent, comparing the two happy dent as a bit of a harsh mint taste that does not last too long and is not so chewy rather a bit hard.
however one important thing, you should not consume alot of this gum in a day, I learned it the hard way, the sugar free xylitol they use in it can give you diarrhea and make you feel bloated, I think I had consumed about 6 sticks in about 6 hours before the diarrhea and bloating kicked in and lasted for a day after I stopped chewing it. Not sure if its improving my teeth.