2026 Dentalcare Case Studies Practice Exam – Complete Preparation Guide

When enamel is exposed to acids, the pH drops and hydroxyapatite dissolves, leading to demineralization. Soft drinks commonly use phosphoric acid as the acidulant, which lowers the drink’s pH enough to promote this mineral loss from enamel. Among the acids listed, phosphoric acid is the one most consistently found in popular soft beverages, so it best explains why these drinks can demineralize enamel. The other acids—acetic, formic, and oxalic—occur in some foods or niche beverages but are not the typical acidulants driving enamel erosion in most soft drinks.