Лако-красочные материалы — производство

Cements are adhesive substances capable of bonding different bodies together; they are generally applied as liquids or viscous fluids, which set (harden, cure) in situ to solid materials. Dental cements used for luting or cavity lining are similar in composition and related in function; accordingly, certain data presented here are pertinent as well to Section IV. Luting cements are employed for the attachment of restorations and ortho­dontic bands to the tooth structure.[33] Luted restorations include crowns, inlays, and metal posts, as well as some of the older bridge constructions. In general, they are of a perma­nent nature. Temporary appliances, however (e. g., temporary crowns or splints), also require luting cements, and such appliances are similar in composition to those used for permanent luting except that they are designed for weaker bonding to facilitate future removal.