What is the procedure of choice for achieving coverage of an exposed root surface with gingival recession?

The procedure of choice for achieving coverage of an exposed root surface due to gingival recession is a sub-epithelial tissue graft. This method is particularly effective because it uses a graft that includes not only epithelium but also connective tissue, which enhances its ability to integrate with the surrounding tissues and promotes the growth of new gingival tissue.

The sub-epithelial graft is positioned under the existing gingiva, allowing for a more stable and thicker band of keratinized tissue to develop over the exposed root. This procedure not only helps to cover the root adequately but also improves the aesthetic outcome and contributes to the periodontal health of the affected area.

In comparison, other methods like free gingival autografts and apically positioned grafts often do not provide the same level of tissue thickness or stability required for optimal root coverage. Free gingival autografts are primarily used to increase the amount of keratinized tissue rather than for root coverage. Apically positioned grafts are more suitable for certain types of soft tissue augmentation but may not be as effective in addressing root coverage associated with recession. Modifications such as a modified wide flap can help in some cases, but they typically do not achieve the same predictable results as the sub-