Effects of self-etching primers on dentin.
The effects of self-etching dentin primers on the hardness of dentin was evaluated by determination of the Vickers Hardness of both untreated dentin and dentin treated with different primers. Several experimental primers were prepared by dilution of dicarbonates or their esterified salts with different ratios of HEMA to obtain ratios of 5% and 35% by weight. Methacryloxyethyl succinate (MES) and Methacryloxyethyl phthalate (MEP) experimental primers caused less softening of dentin than did maleic acid diluted with HEMA or a commercial dentin primer (Scotchprep, 3M). A high correlation was observed between the pH of a primer and the hardness of dentin treated with the primer. A correlation was also observed between the hardness of treated dentin and the wall-to-wall polymerization contraction of a light-curing microfilled resin (Silux, 3M).
Inagaki
A
A
Chigira
H
H
Itoh
K
K
Wakumoto
S
S
D000134:Acid Etching, Dental; D001840:Dental Bonding; D003736:Dental Cavity Lining; D003804:Dentin / Q000187:drug effects*; D006244:Hardness