Gingival fibromatosis is a rare condition which is characterized by slow progressive lesion
of the gingiva. It may occur as a localized lesion or may be generalized. Genetic cause has
been implicated as its etiology with several genes and mutations and sometimes associated
with syndromes or drugs but isolated cases are also reported and their etiology often
remains unknown. A rare case study of excessive gingival overgrowth covering both
maxilla and mandibular arches with complete presence of fibrous tissues on all the
occlusal surfaces of teeth has been discussed. This case can be treated as an isolated
finding because of its massive proliferative growth of the tissues leading to severe facial
disfigurement and its psychological impact on eight-year-old girl.