Tooth sensitivity, also known as dentin hypersensitivity (DH) is very common, especially in adults between 30-40 years old. DH tends to occur in women more than men.
There are many causes of tooth sensitivity. Some causes of DH are factors we cannot control, such as genetics, some medical conditions and aging. Other causes can be controlled, such as:
• Brushing your teeth too hard
• Consuming high acid foods and drinks like soda and citrus fruits and juices
• Using chewing tobacco
• Consuming things that cause dry mouth such as caffeinated drinks, alcohol and allergy (antihistamine) medicines
During tooth whitening, your teeth will temporarily dry out (dehydrate) to absorb the whitening gel. This dehydration can cause tooth sensitivity in some people. Brushing with fluoride toothpaste after using teeth whitening gel can help rehydrate your teeth and decrease your experience of DH.