THE NEED FOR GINGIVAL RETRACTION IN THE MANUFACTURE OF AESTHETIC STRUCTURES

After the preparation of the tooth, one of the main manipulations in the manufacture of aesthetic structures is to obtain an impression. When prosthetics with metal-ceramic and all-ceramic crowns, the refined impression technique is used using silicone or polyester impression materials. One of the main criteria for the obtained impression is the accurate representation of the tissues of the marginal periodontium, the hard tissues of the tooth in the cervical area and the gingival sulcus, which is an important step for the exact fit of the subgingival margin of the future restoration. To achieve this goal, a special manipulation is carried out - gum retraction, which consists in expanding and completely opening the periodontal sulcus.