Soft Tissue Grafts
Gums recede for a variety of reasons, including:
Physical trauma (brushing too hard, too often or with a hard brush)
When gum recession is severe, the root of the tooth will be exposed, making it sensitive to hot or cold, prone to decay and aesthetically unattractive.
Soft-tissue grafts cover the exposed root to prevent further recession, stop the sensitivity and improve the appearance of the tooth. In some people, gums are naturally very thin, increasing the likelihood of recession. In these cases, a soft-tissue graft will prevent future problems.