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.