Pain in your upper teeth and cheekbone: sinus or dental?
The roots of your upper back teeth sit just below the maxillary sinuses — so close that pressure in one can feel exactly like pain in the other. That is why a sinus infection can masquerade as toothache, and a dental problem can feel like sinus pressure. Here is how to tell them apart, and when to get it checked.
Why the two feel alike
The maxillary sinuses are air-filled spaces in your cheekbones, and the roots of the upper molars and premolars reach up close to their floor — sometimes separated by little more than a paper-thin layer of bone. Inflammation on either side of that boundary can be felt on the other. So upper-tooth and cheekbone pain genuinely can come from your sinuses, your teeth, or occasionally both at once.
Signs it is probably your sinuses
- Several upper teeth ache at once, rather than one specific tooth;
- the pain worsens when you bend forward or lie down;
- you have congestion, a blocked nose or a recent cold;
- there is pressure or fullness across the cheeks, forehead or around the eyes;
- your sense of smell is dulled.
Sinus-related tooth pain tends to be a dull, generalised ache that moves with your head position.
Signs it is probably a tooth
- One specific tooth you can point to;
- sharp pain when you bite, or with hot, cold or sweet;
- no congestion or cold symptoms;
- pain that lingers after a hot or cold trigger, or throbs on its own;
- visible decay, a broken filling, or gum swelling near the tooth.
Dental pain tends to be sharper, more localised, and tied to temperature or biting rather than head position.
Can a sinus infection really cause toothache?
Yes. Maxillary sinusitis — inflammation of the cheekbone sinuses — is a well-recognised cause of upper-tooth pain, precisely because the roots sit so close to the sinus floor. The giveaway is that it usually affects several upper teeth together, comes with congestion, and eases as the sinus settles. It is one of the most common reasons a “toothache” turns out not to be the tooth at all.
What to do
If it points to sinuses — congestion, several teeth, worse bending over — it often settles with the usual sinus measures (steam, decongestants, time), and a doctor can help if it persists or recurs. If it points to a single tooth with temperature sensitivity and no congestion, see a dentist. When you genuinely cannot tell, a dentist can check the teeth and rule them in or out — useful either way, since it narrows things down.
Frequently asked questions
Can a sinus infection cause toothache?
Yes. The roots of the upper back teeth sit just below the maxillary sinuses, so sinus inflammation can be felt as upper-tooth pain. The clue is that it usually affects several upper teeth at once, comes with congestion, worsens when you bend forward, and eases as the sinus settles.
How do I tell sinus pain from a toothache?
Sinus pain tends to affect several upper teeth, comes with congestion, and worsens when you bend over or lie down. Dental pain is usually one specific tooth, sharp with biting or hot, cold and sweet, and without cold symptoms. If you cannot tell, a dentist can check the teeth and rule them in or out.
Which teeth hurt with a sinus infection?
Usually the upper back teeth — the molars and premolars — because their roots sit closest to the floor of the maxillary sinuses. The pain is typically felt in several of them together rather than in one isolated tooth.
Will sinus toothache go away on its own?
Sinus-related tooth pain often eases as the underlying sinus inflammation settles, with steam, decongestants and time. If it persists beyond a week or two, keeps coming back, or comes with a high fever, it is worth seeing a doctor — and if a single tooth keeps hurting, a dentist.
When should I see a dentist for upper-tooth pain?
See a dentist if the pain is in one specific tooth, is triggered by hot, cold, sweet or biting, lingers after the trigger, or comes with gum swelling — and if there is no congestion to suggest a sinus cause. Facial swelling with fever should be treated as urgent.
Not a substitute for professional advice. This article is general patient information, not a diagnosis or treatment plan. Always consult a qualified dentist about your own situation.
References & sources
Illustrations © Tantalya Dental Clinic — original diagrams created for this article. Educational content references public-domain health information from the U.S. National Library of Medicine (MedlinePlus). Not affiliated with or endorsed by any third party.
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