1991 Volume 40 Issue 1 Pages 242-248
I encountered a 29-year-old man, who had a radiolucent and radiopaque mass in the 5-7 mandible. The mass was diagnosed historogically as cementifying fibroma after reexaminating different diagnoses of cementifying fibroma (at the biopsy's time) or ossifying fibroma (at the enuclation's time). Historical characteristic of the mass is as follows: the size is mostly oval or lump, the property is mostly cement, the cellular component is few, and the connection to tooth root is recongnized.