Can cavities in your dentures from using too much artificial sweetener?

No: Denture teeth are made of acrylic resin and they are not susceptible to decay. Interestingly enough in the past human teeth along with other species teeth were used in denture and they would decay just as quickly as natural teeth.

No: Denture teeth are made of plastic. If you have any supporting natural teeth they may be at risk.

Dentures: If you are referring to dentures (fake teeth) no, you cannot. Prosthetic teeth are made of polymethyl-methacylate. They will not decay.

No: Dentures are plastic and cannot decay. They can crack or break and wear down over time but cannot suffer from tooth decay as natural teeth do.