I think my dog might've swallowed gum...?

I'm at work right now and my bf was watching our 15lbs dog. He went to the gym and when he came back he found trident pack empty cause the dog got into my purse. Well I know for a fact there was none left in that pack but a few mightve fell into my purse. Not sure what the hell happened but if he did ate a few pieces can he die from it??