After being immersed for two years, the adhesive strength of Gent liner A or Molloplast B to PMMA were decreased by 35% or 47% respectively, with a little decrease of tensile strength and increase of hardness.

• 在浸入人工唾液2年后，粘接强度分别下降35%25和47%25，拉伸强度也都有所下降，硬度略有增加。