Читать книгу Periodontics - Fernando Suarez - Страница 16

Free gingiva is the portion of the gingival epithelium that extends from the free gingival margin to the gingival groove (see Fig 1-2). The gingival groove is defined as the “shallow linear depression on the gingiva surface that demarcates the free gingiva and the attached gingiva.”¹ The free gingiva covers the teeth at the vestibular and lingual sites following the contour of the tooth and the dental papilla. In normal conditions, the free gingiva presents as a coral pink color. The location of the gingival groove is determined by the position of the CEJ, and it is present in 4% to 54% of teeth with differences based on tooth type.^15,16