Enamel wear, cavities, gum recession, harsh brushing, teeth grinding, and repeated exposure to hot and cold meals are major causes of dental sensitivity. Over time, sensitivity may be lessened by using toothpaste designed specifically for sensitive teeth, brushing softly with a soft toothbrush, and avoiding extremely acidic meals and beverages. After consuming acidic foods, avoid brushing too hard or right away. See a dentist if the pain is severe, just affects one tooth, or is accompanied by cavities or swelling. You might require gum care, cleaning, or filling.

Tooth sensitivity to cold and sweet foods usually happens when the protective outer layer of the tooth (enamel) becomes weak or damaged, exposing the inner sensitive part of the tooth (dentine). This may be caused by worn enamel, tooth decay, receding gums, cracked teeth, hard brushing, or frequent consumption of acidic foods and drinks. Sensodyne toothpaste can help reduce discomfort by calming nerves inside the teeth, but it may not permanently cure the underlying cause. The best treatment depends on identifying and treating the specific cause of the sensitivity. If there are cavities, damaged fillings, or gum problems, a dentist may recommend treatments such as fillings, fluoride treatment, sealing exposed areas, or gum care. In more severe cases, a root canal may be needed to permanently relieve the pain. You should continue using a desensitising toothpaste twice daily and brush gently with a soft toothbrush. Try to avoid very acidic or sugary foods and drinks. It is important to see a dentist for a proper check-up, as sensitivity can sometimes be a sign of a deeper dental problem. Early treatment often provides better and longer-lasting relief.

Persistent tooth sensitivity even after using sensitivity toothpastes such as Sensodyne or Shy-NM may mean that there is an underlying dental problem that needs proper examination rather than only temporary relief products. Tooth sensitivity can happen due to enamel wear, cavities, gum recession, teeth grinding, cracked teeth, acidic foods, aggressive brushing, or gum disease. If the pain occurs while eating hot, cold, sweet, or sour foods and is continuing despite treatment, it is important to visit a dentist for a detailed dental check-up. The dentist may look for hidden cavities, exposed tooth roots, damaged fillings, or gum problems and may suggest treatments such as fluoride application, dental fillings, desensitising procedures, cleaning, or, in some cases, root canal treatment if the tooth nerve is affected. In the meantime, use a soft-bristled toothbrush and brush gently instead of scrubbing hard. Avoid very hot, cold, acidic, or sugary foods and drinks, and do not rinse immediately after brushing because the toothpaste needs time to work on the teeth. If you grind your teeth during sleep, stress control or a night guard may also help. Since the problem has persisted despite using multiple products, a professional dental evaluation is the best next step to identify and treat the exact cause properly, rather than continuing self-medication.