Xerostomia is a recognized risk factor/contributor for which common secondary oral condition?

Reduced salivary flow (xerostomia) predisposes patients to angular cheilitis — inflammation, cracking, and fissuring at the corners of the mouth, frequently complicated by secondary Candida albicans infection, especially when combined with other risk factors like reduced vertical dimension of occlusion (allowing saliva pooling at the commissures) or poorly fitting dentures.