レジンの象牙質接着性に及ぼすSA-primerの効果について

概要

論文の詳細を見る
The prupose of this study was to clarify the effect of SA-primer(N-methacryloy15 aminosalicylic acid in ethanol) on bonding between resin and dentin, and to discuss the role of the resin impregnated layer formed at the resin-dentin interface. Tensile bond strength of Clearfil PhotoBond to dentin was evaluated after treatment with phosphoric acid and sodium hypercholorite (NaOCl) to remove the layer of collagen fibers exposed on the dentinal surface. Scanning electron microscopic observation of the resin-dentin interface was also performed using the argon ion etching technique. The bond strength to dentin treated with NaOCl was very high even without SA-primer application, though SA-primer was very effective when the etched dentinal surface was not treated with NaOCl. Further, the application of SA-primer to dentin treated with NaOCl did not increase the bond strength. It was indicated that the adhesion promoting effect of SA-primer was due to its effect on the colllagen fibers exposed on the dentinal surface by acid etching. Strong bonding was demonstrated without resin impregnated layer at the inteface between resin and dentin which was treated with NaOCl after the Phosphoric acid etching.
硬組織再生生物学会の論文
1993-10-31