Effect of phosphorylated chitosan and carbodiimide biomodification on the chemical composition of eroded dentin.

Purpose: To evaluate the chemical composition and morphological properties of eroded dentin after biomodification with phosphorylated chitosan (P-Chi) and carbodiimide (EDC).

Methods: 42 bovine dentin specimens were used; 21 of these specimens were subjected to erosive challenge with 0.3% citric acid (pH = 3.