Auto Grafts: This type of tissue comes from your own mouth. The sides of the roof of your mouth (adjacent to the molar and bicuspid areas) is the most common donor site. For the Free Gingival Graft, the graft is taken from the top 2mm surface of the roof of the mouth. For the Connective Tissue Graft, the graft is taken from just underneath the surface of the palate. The wound is usually smaller and heals faster than the Free Gingival Graft. Both donor sites are sutured.
Allo and Xeno grafts: The Allograft is tissue that is donated from another person. The allografts used for soft tissue grafting are a dermal matrix, collagen, that has all cellular components removed and ‘sterilized’ using a number of various techniques. The Xenograft is tissue taken from an animal, usually a cow, that has all the cellular components removed and ‘sterilized’ using a number of various techniques. Both of these grafts are very safe. Because the cellular components are removed, typical donor tissue rejection is not seen in these grafts.