That 'squeaky clean' feeling is actual a coating of sorbitol in your mouth (thus why you only get it when you use toothpastes that contain sorbitol). Sorbitol is not just used as a sweetener in toothpastes it is used as a thickening agent, which is why so many toothpastes contain it even those that claim to be 'more' natural.Not the tube that I have. My teeth just don't feel as squeaky clean as they do with "normal" toothpaste. I'm happy with the lack of aftertaste in Tom's just hoping to find something that leaves me feeling cleaner.
If I understand correctly the sorbitol is only a sweetener and shouldn't be contributing to the cleaning.