Chocolate bars melt in your mouth – that makes it good candy!  Sticky candy or suckers bathe your teeth in suger for prolonged periods giving the bacteria in your mouth ample opportunity to eat the sugar  and to produce the by-product of acid which creates holes or cavities in your teeth.  Xylitol containing candy is sweet but the bacteria cannot use it for energy.  They take it up but it starves them since they can’t use it.  Five times a day exposure to xylitol in the form of gum or hard candy can decrease the amount of cavity- producing bacteria in your mouth!