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Table 1

Differential criteria between papilloma, irritational fibroma and giant cell fibroma.

Criterion Papilloma Irritative fibroma Giant cell fibroma
Surface appearance Exophytic growth, cauliflower-like surface Smooth, homogeneous surface Smooth, somestimes similar to papilloma (exophytic, lobulated)
Location Tongue and palate (60%) according to Frigerio et al. (125/207 cases) Buccal mucosa (60%) according to de Santana Santos et al. [12] Gingiva, masticatory muccosa (Regezi et al.) [5]
Transmissible disease Yes (associated with HPV, mainly types 6/11) No No
Oncogenic potentiel None (benign lesions, not linked to high-risk HPV) None None
Recurrence Rare if completely excised Rare if irritative cause is removed Very rare

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