When you have a cold, your teeth may ache because sinus pressure or inflammation irritates nearby nerves. This is most common with sinus infections or severe congestion.
How Sinus Pressure Affects Your Teeth
The sinuses above your teeth can swell and press on roots when congested. Upper molars are often affected because their roots extend into the maxillary sinuses. The trigeminal nerve, which serves both areas, can misdirect pain signals, making it feel like your teeth hurt even if the issue is in your sinuses.
Other Causes of Tooth Pain During a Cold
Tooth pain during a cold isn't always linked to sinus pressure. Other possible causes include:
Postnasal drip: Mucus dripping down your throat can irritate nerves connected to your teeth.
Ear infections: Since the ears, nose, and throat are connected, an ear infection may cause referred pain in your jaw or teeth.
Temporomandibular joint (TMJ) issues: Coughing or blowing your nose forcefully can strain the TMJ, leading to jaw pain that feels like tooth pain.
How to Relieve Tooth Pain from a Cold
Try these remedies to ease discomfort:
Decongestants: Medications like pseudoephedrine reduce sinus swelling.
Saline rinses: Flushing your nasal passages with salt water can relieve pressure.
Warm compresses: Applying heat to your cheeks or forehead may soothe inflamed sinuses.
Over-the-counter pain relievers: Ibuprofen or acetaminophen can reduce inflammation and pain.
If pain persists after your cold clears, see a dentist to rule out other issues like cavities or infections.
When to See a Doctor
Tooth pain during a cold usually goes away within a few days. However, seek medical attention if:
Pain lasts longer than 10 days.
You develop a fever or severe headache.
Your gums are swollen or bleeding.
These signs may indicate a bacterial infection requiring antibiotics.
