Common Mistakes That Damage Your Gums Most people brush twice a day — but many unknowingly cause more harm than good. Brushing Too Hard Your gums are delicate tissue, and aggressive brushing wears away enamel and causes gum recession. Use a soft-bristle brush with gentle, circular motions. Using the Wrong Technique Hold your brush at a 45-degree angle to your gums and use small, circular strokes — cleaning two or three teeth at a time. Not Brushing Long Enough Two minutes is