The appropriate film thickness for good adhesion of a permanent restoration depends on solutes. Thicker films suit volatile solutes, while thinner films are preferred for low volatility solutes.
When considering cement film thickness, the most suitable option for good adhesion of a permanent restoration will depend on the specific solutes being dealt with. Thicker films, like 50 microns, are more beneficial for highly volatile solutes, while thinner films, such as 20 microns, are preferred when separating low volatility solutes like steroids.
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