- VARNAL is a cavity varnish used as auxiliary in covering and protection for the pulp-dentin complex.
- When VARNAL is applied there is a solvent evaporation in a thin resin film that remains on the surface of cavity prepared.
- Such thin film acts as a semi permeable membrane, obstructing the passage of some ions.
- It is most important to obtain an uniform and continuous covering on the whole surface of cavity prepared.
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