生活百科：护牙系列之一——怎样保护敏感牙齿

STEP 1
Avoid acid & carbonation
避免食用酸和碳酸

Avoid acidic foods and beverages and carbonated drinks.

STEP 2
Wait before brushing
刷牙前要等待

Always wait at least 30 minutes after eating before brushing your teeth.

STEP 3
Use right brush
正确选用牙刷

Brush with a soft-bristled toothbrush and use desensitizing toothpaste containing
fluoride and either potassium nitrate or strontium chloride. Both help block the
transmission of sensations from the tooth to the nerve.

Overzealous brushing, particularly with a hard-bristled toothbrush, can actually
lead to hypersensitive teeth—so use a soft-bristled brush and be thorough but not
too aggressive.

STEP 4
Don't grind teeth
不要磨牙

Don't grind your teeth, which can cause increased sensitivity.

If you grind your teeth in your sleep, wearing a mouth guard can help protect your
enamel.

STEP 5
Visit a dentist
看牙医

If taking these steps doesn't help, visit a dentist. There are several procedures
that might help you.

Sensitive teeth are usually caused when tooth enamel wears down or your gums
recede, exposing tiny tubes that access nerves and cells inside your teeth.