An 11-year-old patient complains about tooth mobility and gingival hemorrhage. He has been suffering since he was 3 years old. Objectively: gums around all the teeth are hyperemic, edematic, bleed during instrumentl examination. Tooth roots are dehisced by 1/3 and covered with white deposit. There is 2 degree tooth mobility. Dentogingival pockets are 4-5 mm deep. External examination revealed dryness and thickening of palms, anterior third of forearms, sole surfaces; there are scratches. What is the most probable provisional diagnosis?