Abstract
This case involves a male,1 year and 1 month after birth, who had been receiving artificial respiration since he was one month old, due to right pulmonary hypoplasia under nasal intubation. With the eruption of the lower deciduous central incisor, the tip of the tooth touched the lower surface of the tongue tip, forming an oval ulcer, and sometimes bleeding was noted (Riga-Fede's disease). In such a case, the sharp edge of the incisor is shaved, or the tooth is extracted, but in this case as the period of eruption was normal and the bony implantation was firm, we prepared the splint pack used to keep the wound at rest for a child with hemophilia or after extraction of many teeth, to cure the ulcer occurring at the some time.
