Cold water hits a tooth and you flinch. Ice cream, same story. Hot tea, and there’s that quick jab out of nowhere. That’s what people mean by sensitive teeth. The softer inside of the tooth has been left exposed, or something’s got it wound up.
Loads of things cause it. Enamel worn thin. Gums that have crept back off the tooth. A cavity you didn’t know was there. A hairline crack. Grinding in your sleep. Whitening will do it for a while too.
The odd twinge now and then is usually nothing to lose sleep over. What you don’t want to ignore is sensitivity that keeps going, ramps up, or homes in on one tooth. Because what feels like plain old sensitivity is sometimes decay or a gum problem introducing itself early.
What it actually feels like
A short sharp stab, mostly. There one second, gone the next. That in and out is half of what tells you it’s sensitivity and not something nastier brewing underneath.
| Trigger | What you’ll notice |
|---|---|
| Cold drinks | A sudden twinge, sharp and quick |
| Hot food or drink | It nips while you’re eating |
| Sweet stuff | A little sting after something sugary |
| Cold air outside | Aches when you breathe in through your mouth |
| Brushing | One spot that’s sore when the brush passes over it |
| Anything acidic | Worse where the enamel’s already gone |
Now, if the ache drags on after the cold or hot has gone, or you’ve got a proper throbbing toothache sitting on top of it, that’s a different beast. Get that seen.
So what’s causing it?
Handful of usual suspects.
Worn enamel
Enamel’s the hard shell wrapped round the outside. Grind it down and the dentine underneath starts poking through. Dentine’s a lot more feeling than enamel is. That’s why cold, heat, sugar, all of it gets a straight run at the nerve once the shell’s gone. Fizzy drinks, fruit juice, anything sharp and acidic wears it quicker, and it’s the sipping all day that really does the damage, not the odd glass.
Gums that have receded
Gums pull back and suddenly a chunk of tooth is out in the open. Trouble is, the bit that lives under the gum was never given the same enamel coat as the top of the tooth. So it’s soft and touchy by design. Cold water finds it. Hot food finds it. The toothbrush definitely finds it.
Scrubbing too hard does this. So does gum disease. If your gums look red or puffy or leave pink in the sink when you brush, and your teeth are sensitive with it, get the gums checked properly. Gum disease doesn’t heal itself and it only goes one way when it’s left.
A cavity
Here’s the sneaky one. Decay can turn up as sensitivity ages before it ever aches. Early doors you feel nothing. Then one day something sweet catches it. Few weeks after that it’s a full toothache and you’re on the phone. This is exactly why “I’ll just put up with it” is a bad bet with your teeth.
A cracked tooth
One tooth. Sharp out of nowhere. Really sore when you bite on it. That’s crack territory. The small ones you’ll never spot in the bathroom mirror. If it’s stuck to a single tooth and biting sets it off, book in, don’t wait and see.
Grinding
Most people grind in their sleep and haven’t a clue they’re at it. All that force goes through the teeth night after night. Wears them flat over time and leaves them touchy. Other clues it’s you: teeth that look chipped or worn down, a jaw that’s tight first thing, waking up with a headache.
After whitening
Whitening leaves teeth sensitive for a bit. Well known, nothing to panic about, and it settles once you’re through the course. If your teeth are already sensitive, flag it before you start any whitening treatment and it can be worked round.
Why are my teeth sensitive to cold?
Cold’s the big trigger, no contest. That jolt off cold water or ice cream usually traces back to exposed dentine, either the enamel’s thinned or the gums have dropped. But a cavity or a crack throws up the exact same feeling, so cold alone doesn’t tell you which.
Quick way to read it. Several teeth, quick zap, gone. Probably ordinary sensitivity. One tooth going properly berserk, or an ache that hangs about after the cold’s cleared off? Worth a look.
What helps
Comes down to why they’re sensitive, so there’s no one fix. For the mild everyday kind you can get a fair way at home. Get a sensitive toothpaste and actually stick with it, weeks not days. Twice a day, fluoride toothpaste, soft brush, and a light hand instead of going at them like the grouting. Back off the constant acidic drinks. If very hot or very cold things are what set you off, go easy on those while it calms.
Just be straight with yourself about what the toothpaste does. It quietens the symptom. It’s not touching a cavity or a crack or gum disease underneath. So if a few weeks of the home stuff hasn’t shifted it, that’s your sign to get in the chair.
When to actually see a dentist
Home care only stretches so far. Book in if any of this rings true:
- It’s not letting up, or it’s getting worse week on week
- It’s one tooth specifically
- Biting down hurts
- The pain lingers well after you’ve stopped eating
- Gums swollen or bleeding
- You can see a crack, a hole, a chip, anything
- It’s started making normal meals a pain
Sensitivity is now and then the first sign decay or something else leaves. Cheaper and easier to catch it now than to keep quietly working around it.
Can it be fixed?
Yeah, once you know what’s driving it. What you’d do for sensitivity off receding gums is nothing like what you’d do for a cavity or a split tooth. So step one is always figuring out the cause. An exam picks up the obvious stuff and tells the dentist whether an X-ray’s needed to see what’s hiding.
Frequently Asked Questions About Sensitive Teeth
Why are my teeth suddenly sensitive?
How do I stop my teeth being sensitive?
Why are my teeth sensitive to cold but not hot?
Why do my teeth hurt when I drink cold water?
Can a cavity cause sensitive teeth?
Can sensitive teeth mean gum disease?
Is a bit of tooth sensitivity normal?
How long does it last?
Get sensitive teeth checked in Droitwich
If cold, hot, sweet or acidic things have started catching your teeth, the team at Droitwich Dental Studio can work out what’s actually going on. Instead of grinning and bearing it, an exam tells you whether it’s worn enamel, gums, decay, damage, or something else entirely.
Sensitivity that’s persistent, painful or getting worse? Book in with Droitwich Dental Studio, or give the practice a ring on 01905 797733.
