A 13-year-old girl complains of swollen gums that bleed when she brushes her teeth. This condition has been observed for the last half a year. Objectively, her gingival mucosa in the area of the upper front teeth is edematous and cyanotic Interdental papillae are round, doughy, enlarged, and cover the crowns by 1/3 of their height. Teeth 13 and 23 are positioned vestibularly Make the provisional diagnosis.