[Planning of esthetic oral rehabilitation according to correlative analysis of clinical and morphological features of the marginal gingiva].

The orthopedic restoration and related to its clinical stages (preparation, gingival retraction, impression) is often associated with complications which arise from the marginal gingiva. The technology of indirect ceramic restoration requires an assessment of the clinical and morphological parameters of periodontal tissues. The study outlines correlation between the type of periodontal histhology and inflammatory and degenerative complications that has been established after the analysis of morphofunctional state of periodontal tissue.

[Dental preparation features by subgingival location of circular ledge].

To prevent periodontal complications after esthetic rehabilitation it is essential to minimize soft tissues injury in case of subgingival ledge position. It was established that the border of ledge should not interfere with biological width of the tooth. Clinical researches showed that location of circular edge at 0.