Absolute Dental Centre

Sensitive Teeth
If you suffer from a sudden sharp pain or twinge when eating or drinking something hot or cold it is probably caused by sensitivity.
What causes sensitive teeth?
Teeth have an outer layer of hard enamel. If it is worn away or damaged the layer underneath known as dentine is exposed. Dentine is made up of lots of tubules, which join the nerve, so if you drink something hot the nerve expands, if you drink something cold the nerve shrinks causing a short sharp pain.
What causes enamel to become damaged or dentine to be exposed?
Enamel can be damaged by aggressive tooth brushing (abrasion) or acidic foods and drinks, which can cause erosion. Gum disease also causes recession.
How to prevent enamel damage:
Changing brushing technique; either slow down brushing with a manual toothbrush (visit the hygienist or oral health educator for advice and a brushing demonstration) or change to an electric toothbrush – I would recommend a rechargeable Oral B 550 @ £39.99.
Avoid fizzy, acidic drinks and food. Drink lots of water. Always wait at least 1 hour before brushing your teeth.
How to treat sensitive teeth:
Sensitive teeth need special care. Use a de-sensitising toothpaste, a fluoride mouthwash and avoid very hot and cold drinks etc.
How does sensitive toothpaste work?
The sensitive toothpaste creates a protective layer over the dentine surface and works by blocking the tubules that make up the dentine (a bit like a cork!) Blocking the tubules creates a barrier, which prevents the nerve from being stimulated and triggering pain.

Written by Nicola Adams - Hygienist