A new study which appeared in the General Dentistry journal suggests that people who are sensitive to bright light, loud noise, itchy clothes and strong perfumes are also likely to have sensitive teeth. This means that such a person is likely to avoid very hot or very cold foods.
The study confirmed that sensitive teeth had a direct relationship to sensitivities to special senses like sight, hearing, taste and touch, with a notable finding that all people with sensitive teeth expressed a need to wear sunglasses when outdoors.
Stimulation of cells in tiny tubes located in the tissue found beneath the hard enamel that contains the inner pulp is the cause of tooth sensitivity. Beverages which are very hot or very cold, clenching or grinding of teeth or brushing too hard may irritate the inner tubes and increase sensitivity.
Doctors suggest that people with sensitive teeth can find relief from this condition by using special toothpaste or by drinking tea. Tea contains tannic acid which clogs the material in the open dental tubes, making it hard for hot and cold temperatures to seep in and hit the pulp, which is what causes the pain.