Abstract
To clarify the amount of formation of granulation tissue on the mucoperiosteal defect after palatoplasty in cases applied an artificial skin (atelo-collagen), we applied atelo-collagen to one side of the mucoperiosteal defect and nothing to the other side in 7 cleft palate infants. We investigated the changes in the normal direction on the defects as compared to the preoperative condition. It was clarified that the concavity of the side applied atelo-collagen was less than that of the non-application side. In addition, the height of the palatal mucosa recovered more quickly when atelo-collagen was applied.
