Best dental implant clinic in Adambakkam | Signs You Shouldn’t Ignore That Sensitivity After Brushing or Eating Cold Foods A quick sting when you sip something cold might seem normal—but it’s not! Tooth sensitivity is often an early sign of enamel erosion, gum recession, or cavities. Brushing too hard or using a hard-bristled brush can wear down enamel over time. If sensitivity lingers, it could mean an exposed nerve or tiny crack in your tooth. Ignoring it may lead to infection or severe decay later. Switch to a soft toothbrush and use sensitivity toothpaste as a first step. But for lasting relief, a dental check-up is essential to find the real cause. At Dr. Akkshaya Dental and Aesthetics, Adambakkam, we offer gentle, effective care to stop that sting for good.