A denture containing a henna powder or a henna extract, each of which comes from pulverized henna leaves and may include any of lawsone, tannic acid, and 2-methoxy-1,4-napthoquinone and a denture fabrication material. A denture containing at least one first antimicrobial ingredient selected from the group consisting of henna powder or a henna extract, lawsone, tannic acid, and 2-methoxy-1,4-napthoquinone, and a second antimicrobial ingredient, and optionally, a biocompatible gel and an odor neutralizer.