DENTOGINGIVAL UNITBy- Dr Rohit Rai Content • Junctional epithelium • Gingival fiber • Clinical importance of dentogingival unit. Shift of the dento gingival junction The dentogingival junction is an anatomical and functional interface between the gingiva and the tooth. PDF | This study define altered passive eruption (APE) and evaluate the morphology of the dentogingival unit. individuals subjected to.

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The biologic width appears to exist in any periodontium, and the importance of not violating this physiologic dimension was suggested by Ochsenbein and Ross 9 and stressed by other authors.

Biologic width and its importance in periodontal and restorative dentistry.

Thickness of facial gingiva. Measurements were obtained of the thickness of the buccal bone plate at crest level, at the middle third, and at the apical third.

Morphology and dimensions of the dentogingival unit in the altered passive eruption

Gutta-percha point and lead plate aligned with the long axis of tooth Click here to view. The clinical picture is then characterized by the recession of the gingival margin or the retention of the original level and a deepening of the pocket. None, Conflict of Interest: Author information Article notes Copyright and License information Disclaimer.


Clinical diagnostic criteria of altered passive eruption APE. Subject variation and influence of tooth type and clinical features. These authors defined APE type 2 in terms of a bone crest-cementoenamel junction distance of under 1. Measurement of thickness of connective tissue attachment and free gingival thickness Click here to view.

The same impossibility can be stated regarding clinical situations exhibiting high located horizontal root fractures or endodontic perforation Figs and Transgingival probing trans-sulcular was done for these same patients and length of the DGU was measured.

Gingival width in right maxillary central incisor Click here to view. Measurement of lead foil thickness, distance between cementoenamel junction and bone crest, and gingival sulcus depth Click here to view. However, these results may also be interpreted taking both hypotheses into account, i.

Many authors have investigated the causes and mechanisms that may lead to tooth eruption failure, though few studies have related such mechanisms to the morphology adopted by the coronal periodontium 8. An excessive amount of gingiva covering in the occlusal direction of the anatomic crown can be noted.

Morphology and dimensions of the dentogingival unit in the altered passive eruption

The combined dimension of the connective tissue attachment and the junctional epithelium reaches 2. Radiographic analysis of alveolar crest height and age.


The purpose of this division was to identify the variables related to APE and the particularities that may help differentiate the condition. Walter Reed Army Medical Center; In humans this distance is 2.

Probe depth in unti was evaluated at three points on the vestibular aspect of each of the sextant teeth. Discussion The literature lacks references for calibrating the magnitude of gingival overlap characterizing APE. Please review our privacy policy. Lead foil cut appropriately Click here to view.

7. Esthetic Management of the Dentogingival Unit

Accordingly, a disproportionate dimension of these tissues with respect to tooth size or eruption capacity would complicate both passage of the tooth during the active eruption phase and tissue withdrawal during the passive phase of eruption. Five inclusion criteria were defined: Int Dent J ; The APE is characterized by: Periodontal surgery to position dentovingival teeth in vestibular dystrophy.

Tooth 21 with APE was seen to expose significantly more gingival tissue on smiling mean 2. Dentogingival unit, gingival thickness, transgingival probing, radiographs. Indian J Dent Res ;