Background: Cuka pempek is a traditional food from Palembang that contains acid as one of its components. Continuous consumption of cuka pempek can affect the surface roughness of heat-cured acrylic resin denture bases due to its ability to absorb liquids. Objective: To determine the effect of the types of acid in cuka pempek on the surface roughness of heat-cured acrylic resin denture base. Me…