Fig. 13. Sources of soft mucosal grafts. A. Mucosal graft taken from inside the cheek. Care must be taken to avoid the parotid duct. B. Mucosa can easily be obtained from the lower lip. Care must be taken to avoid the vermilion border. C. Hard-palate graft. Care must be taken to avoid the area of the greater palatine foramen (stippled area) because severing of the anterior palatine artery can cause bleeding that is very difficult to control. D. Insertion of mucosal graft in inferior fornix.