What Causes Sensitive Teeth? Dentinal hypersensitivity, or tooth sensitivity, may be a common dental problem. It’s a condition which will develop over time, as a results of common problems like receding gums and enamel wear. Most sufferers are between 20 and 50 years old. Only a dentist can confirm you've got dentinal hypersensitivity. If you're experiencing any dental problems, always consult your dentist for advice. If you've got dentinal hypersensitivity, you'll help to minimise further exposure of the dentine, look after your sensitive teeth and relieve the symptoms by making some simple changes to your daily oral care routine and dietary habits.