[Light and electron microscopic studies on the reepithelization of free connective tissue grafts]

1. In mini-pigs epithelium-free connective tissue grafts were transplanted from the cheek to the palate as well as from the palate to the area of the alveolar mucosa. 2. In the palatal transplant area (hard palate) epithelium without keratinization was observed after five months. But after 7 to 11 months orthokeratinized epithelium without any structural differenced from the neighboring palate was found. 3. In the alveolar mucosal transplant area, in some parts similarities to palatal epithelium were found after 5 to 7 months. 4. It could not be found that there was a gradual difference between buccal and platal connective tissue with regard to their inductive influence on epithelial differentiation.