Clinical perspectives of periodontal and restorative interactions.

Restorative treatment and periodontal health are directly interrelated. A restorative treatment plan must consider periodontal support and provide for adequate maintenance of the health of the periodontium. For example, prosthetic design must facilitate hygiene practices and not violate the physiologic dimensions of the periodontium. The relation of the periodontium to margin preparation, margin placement, crown contours, and pontic design are discussed in this article.