A. Cause of sensitive teeth
Sensitive teeth are mainly caused by exposed dentine. If enamel has been worn off or damaged, then it will lose its protective function and the dentine will be exposed. The dentine has many fine dentinal tubules connecting to the pulp. When it is stimulated by eating or drinking hot, cold, sour, or sweet food and beverages, or when it is contacted by a toothbrush or dental floss, sharp pain will be felt.
B. Causes for exposed dentine ：
Brushing with a toothbrush with bristles that are too hard, or brushing with excessive force can abrade the enamel of teeth.
Frequently eat or drink highly acidic food or beverages will lead to acidic erosion of the enamel.
Frequent grinding of teeth (bruxism) causing enamel to wear off.
Suffering from Periodontal Disease which causes gum recession and exposed root surface.
C. Management
Dentist will apply topical fluoride on the tooth surface or perform a filling according to the condition.
Use a "mouth guard" made by the dentist to avoid further attrition of teeth.
Use desensitizing toothpaste to relieve tooth sensitivity. You should consult your dentist before purchasing or using this type of toothpaste.
D. Prevention
Use a toothbrush with soft bristles.
Brush with a gentle force.
Avoid frequent intake of highly acidic food or beverages such as fruit juice, sports drink, soft drink, yogurt, red wine, white wine, etc., to avoid acidic attack.
Avoid biting on hard food such as bone or nut to prevent enamel from fracturing.
Sufficient sleep and exercise to relieve stress to avoid bruxism (grinding teeth)
It is not intended as medical advice to any specific person. If you have any need for personal advice or have any questions regarding your health, please consult your Dentist for diagnosis and treatment.
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