Sugar can significantly impact the oral health of denture wearers. Though dentures aren’t susceptible to cavities, sugars in the diet still encourage bacterial growth in the mouth. Bacteria feed on sugars, which leads to plaque buildup on dentures and gums, potentially causing bad breath, gum irritation, and infections. If dentures aren’t cleaned thoroughly, sugar residue can create a sticky environment for bacteria to thrive. High sugar intake also increases the risk of oral thrush, a common fungal infection for denture wearers. Limiting sugary foods and drinks, maintaining proper denture hygiene, and rinsing after meals help keep the mouth healthy.