Лако-красочные материалы — производство

The dentinal tooth substance exposed by the clinician in the process of cavity preparation has direct access to the sensitive pulp via the dentinal tubules and so is highly responsive to irritating effects and attacks originating from, or transferred through, the cavity-filling material. Although such effects are minimal and clinically acceptable with many of the nonmetallic restoratives in current use, some of the more ‘‘classical’’ filling materials, notably amalgam, require pre-treatment of the prepared cavity with a cement acting as a base or liner with the specific function of providing a protective barrier between restora­tion and dentin.