Dimensions and Relations of the Dentogingival Junction in Humans

Radiographic Alveolar Bone Loss in Patients Undergoing Periodontal Maintenance

“…Subtraction of 2 mm from the CEJ to ABC or CEJ to AP distances was adopted as the criterion in the formula used, based on histological studies on periodontally healthy teeth showing that the sum of connective tissue (1.07 mm) and junctional epithelium (0.97 mm) attachments or the distance from the top of alveolar bone crest to the bottom of the gingival sulcus 12,53) , was approximately 2 mm 12,19,53) . Therefore, we chose the dentogingival junction (2 mm) for the formula, as it is not visible on the X-ray and cannot be considered as bone loss.…”

The correlation between the presence of dehiscence or fenestration and the severity of tooth attrition in contemporary dry Japanese adult skulls. Part I.

“…The present study examined both dehiscence and Table 2 Correlation between the severity of tooth attrition and the presence of dehiscence and fenestration fenestration from the facial or buccal aspects only, since these defects were only present to a slight degree on the lingual or palatal surface. At the healthy human dentogingival junction, the alveolar bone level has been recognized to be about one millimeter apical from the CEJ when the most coronal junctional epithelium is located on the CEJ [20]. On the other hand, previous studies have reported that in radiographs, an apical interproximal bone level of more than 2 mm can be classified as a pathological condition [21][22][23][24][25].…”

Prosthetic restoration of the canine

“…In order to maintain them in that condition, the dentist's tooth preparation should be entirely supra-gingival except where the circumference of the crown will be directly visible or when existing sulcular lesions or contours force the practitioner to place the junction of crown and tooth within the sulcus. In these situations the dentist should respect the principles that Gaarguilo 22 proposed in a 1961 article. The position of the edges of the prosthesis should respect the epithelium of the junction by preserving a margin of error.…”

“…Accordingly, prosthesis should never be set more deeply than .5 mm in a sulcus 1 mm in depth. There is today a strong consensus that with junctions of prosthesis to tooth of equal quality those that are placed more deeply in the dento-alveolar sulcus will provoke t h e m o s t i n f l a m m a t o r y r e a ctions 15,19,20,22,32,40,51,55 .…”