Intracrevicular restoration and dentogingival junction(DGJ) Part: restorative contour and DGJ / 대한치주과학회지

All contours of the restoration not directly related to occlusion are related to the gingival tissues only. And proper contour of restoration is essential for the health of the periodontal tissues. But there are so many controversies about the contour of the restoration, and there is no uniform agreement in the literature as to which contour of restoration is best for periodontium. In general, the contour of restoration means the supragingival contour only but in the case of the intracrevicular restorative procedure the subgingival contour of restoration must be considered. Because a portion of the restoration is placed in a gingival sulcus which is extremely vulnerable to periodontal disease. In this article the concepts or theories of the supragingival contour, the subgingival contour, and the emergence profile were discussed. The contour of the restoration and the biotype of the periodontium must be considered in intracrevicular restorative procedure. And sufficient tooth preparation is important factor to develop the proper contour of restoration which is kind to periodontium.

Intracrevicular restoration and dentogingival junction(DGJ) Part I : restorative margin and DGJ / 대한치주과학회지

There are so many considerations for successful restorative dentistry and the periodontal consideration is one of the most important facors to consider. In modern dentistry intracrevicular margin is popular due to esthetic reason. But the marginal tissue recession after intracrevicular restoration is one of the most troublesome phenomena. The marginal tissue recession may be controlled with understanding the mechamsms. In conclusion (1) the inflammation of periodontium must be controlled before intracrevicular restorative percedure (2) the width and thicknes of keratinized gingiva must be evaluated before intracrevicular restorative procedure (3) tooth preparation must follow the natural scallop of CEJ.