Why Your Dentist Obsesses Over Flossing Ever wonder why your dentist is obsessed with flossing? This shocking dental animation shows exactly what happens when you skip it.Watch a healthy tooth rapidly progress from perfect gums to swollen gingivitis, deep periodontal pockets, severe bone loss, and the pulp inside turning necrotic.This is the real progression of untreated plaque buildup leading to gum disease (periodontitis). Brushing alone isn’t enough — flossing removes the plaque and bacteria