Fig. 3
From: Gingival fibromatosis: clinical, molecular and therapeutic issues
Idiopathic gingival fibromatosis in the posterior maxillary region of the gingiva of a 35-year-old patient treated at the Department of Periodontology and Oral Medicine, Jagiellonian University, Collegium Medicum, Krakow, Poland. a Clinical image of the lesion before surgery. b Numerous bundles of collagen fibrils oriented in antithetic directions in the dense, thick connective tissue, visualized by Heidenhain’s trichrome staining, original magnific. 100×. Histological study was conducted at Microbiology Department, Jagiellonian University, Krakow, Poland [37]