Gingival Graft Healing by Type: Free, Connective Tissue, and Donor Tissue

How free gingival grafts and their donor sites heal

A free gingival graft uses tissue taken directly from the surface layer of the roof of the mouth. Because that donor tissue is removed and not covered back over, the palate heals as an open wound. This is why patients often describe it as the sorest of the graft types. The palate site is commonly tender for about 7 to 10 days and behaves much like a scraped surface that closes from the edges inward.

On the recipient side, the graft first relies on a clot, which forms within roughly 24 to 48 hours. Over the following weeks the tissue revascularizes and integrates, generally maturing across about 6 to 8 weeks. Thinner free gingival grafts tend to settle and revascularize quickly, but they also show more secondary shrinkage as they heal, so the final width can be less than the day-one result. Many periodontists place a palatal stent or dressing over the donor wound, which is reported to reduce reported pain meaningfully and protect the site while it closes. If you want the full week-by-week picture rather than this type-specific view, see the broader gum graft healing stages and the Gum graft recovery overview.

Connective tissue grafts and donor-tissue options

A connective tissue graft is harvested from under the surface layer of the palate. The overlying tissue is lifted, the sub-epithelial connective tissue is taken, and then the flap is sutured back over the donor site. Because the surface is closed rather than left open, the donor area usually heals faster and with less discomfort than a free gingival graft. Patients still report moderate palatal soreness for several days, and careful post-op care matters, but there is no open raw wound on the roof of the mouth.

AlloDerm and other acellular dermal matrix products take a different route. They use processed donor tissue, sterilized to remove living cells, so the graft comes from a separate source and there is no second surgical wound on your palate at all. That removes donor-site soreness entirely, which many patients value. The trade-off reported in some studies is slightly more tissue shrinkage and somewhat slower integration compared with using your own tissue. On the recipient side, the same general pattern holds across CTG and donor tissue: a clot in the first 24 to 48 hours, then revascularization and maturation over roughly 6 to 8 weeks. To see how the gum looks as each type settles, the gum graft before and after comparison is a useful reference.

How the graft integrates and what differs by type

Whatever the source, a soft-tissue graft does not simply stay where it is placed. It must reconnect to a blood supply and knit into the surrounding gum. The early clot stabilizes the graft, small vessels grow in over the first one to two weeks, and the tissue gradually firms and blends in color over the following weeks. Free gingival grafts, taken as full surface tissue, can look paler and more distinct at first. Connective tissue grafts and donor-tissue grafts are placed under or against existing gum, so they often blend more naturally. The donor-site experience is where the three differ most: an open palate wound with FGG, a sutured closed site with CTG, and no palate wound with AlloDerm.

Gingiva (gum tissue) is rich in collagen, mainly types I and III. ch-OSA® is a bioavailable form of silicon that is thought to support the body's own collagen formation generally, as a nutrition adjunct. It is not a treatment and does not affect any procedure's outcome.