Some of the most common causes of sensitive teeth include:
Brushing: Brushing shortly after acid challenge can cause the enamel to be more easily worn away, as during this time the enamel is softened and more vulnerable. Brushing too vigorously can also cause receding gums, causing further exposure of the dentine
Gum disease (also known as gingivitis) causes inflamed and sore gum tissue. If left untreated, gingivitis can lead to periodontitis. Periodontitis is when gum disease gets worse and damages the tissues and bone that support the teeth. One sign of periodontitis is sensitive teeth, as the receding gums leave dentine exposed
Teeth Grinding: If you grind your teeth when you sleep or during the day, or if you clench your teeth, you may be wearing down enamel and exposing the underlying dentine layer of your tooth
Receding Gums: Receding gums can be caused by conditions such as gum disease, which can expose the tooth's dentine and cause sensitivity. Brushing too vigorously can also cause receding gums
