Figure 1

Dissolution rates of phosphate calculi in vitro at 24 and 72 h using different solutions. Phys = physiologic sodium chloride solution, pH 7.0. Art = artificial urine, pH 5.7. EDTA = 0.03 M disodium EDTA+TEA, pH 8.5. R = renacidin, pH 4.0. S1 = test solution 1, pH 4.0. S2 = test solution 2, pH 3.9. ^a P < 0.01 vs Phys and Art. ^b P > 0.05 vs EDTA, Phys and Art. ^c P < 0.05 vs R· ± s·n = 18 for each group. For statistics, see results section.