As the temperature drops, we start hearing the same thing from patients: a sharp, short twinge when breathing in cold air, or when drinking something cold. That is tooth sensitivity, and it is very common.
What causes it
Under the hard enamel of each tooth is a softer layer called dentine, which is full of tiny channels leading to the nerve. When the dentine is exposed, cold, sweet or acidic things can reach those channels and trigger a quick jolt of pain.
The usual causes are:
receding gums, which expose the root surface of the tooth
enamel worn down by brushing too hard or by acidic food and drink
grinding or clenching your teeth, often at night
a cracked tooth, a worn filling or decay
recent whitening, which can cause short-term sensitivity
What helps
Use a toothpaste for sensitive teeth twice a day. It takes a couple of weeks to work fully, so stick with it.
At night, rub a small amount of the toothpaste onto the sensitive area and do not rinse.
Brush gently with a soft brush.
Cut back on fizzy drinks, fruit juice and other acidic drinks, and do not brush straight after having them.
Breathe through your nose on cold days, and wear a scarf over your mouth if it helps.
When to see us
If sensitivity is limited to one tooth, lingers for more than a few seconds after the cold has gone, or keeps you awake, book an appointment. That pattern can point to decay, a crack or a problem with the nerve, which needs treating rather than masking. We can also apply protective varnishes or bonding to exposed root surfaces where a toothpaste alone is not enough.
Call 020 8203 1599 or book online.