BIOLOGY | MEDICAL | HEALTH on Instagram: "When you don’t brush regularly, plaque builds up on your teeth, which can lead to periodontitis, a serious gum infection that damages the soft tissue and bone supporting your teeth. Here’s how it happens: Step 1: Plaque Buildup When teeth aren’t brushed regularly, plaque (a sticky film of bacteria) forms on teeth. Step 2: Tartar Formation If plaque isn’t removed, it hardens into tartar (calculus), which can only be removed by a dental professional. Step