Biomimetic remineralizing agents influence the wettability of artificial caries-affected dentin surface after dentin acid etching

Abstract

This study evaluated the influence of wettability of remineralizing treatment using 0.2% Sodium Fluoride (NaF); MI Paste™ (MP) and Curodont™ Repair (CR) on demineralized dentin (DD) obtained by a biological model, after etching in the bonding process. Bovine dentin blocks were divided into five groups: G1-Sound Dentin; G2-DD; G3-DD + NaF; G4-DD + MP and G5-DD + CR. The surface of G2, G3, G4 and G5 were demineralized by biological model (S. mutans biofilm), the softener dentin was removed by grinding and polishing and, then, treated as groups. Wettability was measured by the contact angle between the water and the dentin: 1.After remineralizing agents applying; 2.Prior acid etching; and 3.After acid etching 15s; and also between Adper™ Single Bond 2 adhesive (SB) and dentin, after acid etching, using sessile drop method. The treatment with MP and CR showed smaller values of contact angle, thereby improving wettability. MP or CR associated with SB is the best indication for wettability improvement of demineralized dentin surface.