Why Your Teeth Hurt When You’re Sick and What to Do

Tooth pain while feeling unwell is a common and uncomfortable experience. This discomfort often stems from systemic changes within the body due to illness, rather than a new dental problem. Understanding the connection between overall health and oral health can explain why teeth might ache during sickness.

Common Illnesses and Their Dental Impact

Sinus congestion frequently causes dental discomfort during illnesses like colds, the flu, or sinus infections. Inflamed sinus cavities, especially those above the upper teeth, can exert pressure on tooth roots. This pressure mimics a toothache, often felt across several upper teeth. Head movements, such as bending or jumping, can intensify this pain by shifting sinus pressure.

Fevers, a common illness symptom, increase inflammation throughout the body. This systemic inflammation can make existing dental sensitivities more pronounced or cause widespread aching in the teeth and jaw. The body’s immune response during illness can also lead to heightened oral sensitivity.

Dehydration and dry mouth often occur during sickness due to reduced fluid intake or increased mouth breathing. Saliva protects teeth by neutralizing acids and washing away food particles. When saliva production decreases, the mouth becomes more acidic, increasing tooth sensitivity and decay risk. This dryness can also make teeth feel more vulnerable.

Other Factors Contributing to Dental Discomfort

Vomiting, common with stomach flu or other gastrointestinal illnesses, exposes teeth to highly acidic stomach contents. Frequent exposure to stomach acid can soften and erode tooth enamel, leading to increased tooth sensitivity. This erosion can make teeth more responsive to temperature changes and pressure.

Teeth grinding, or bruxism, can intensify during illness due to stress, discomfort, or difficulty breathing. The body’s response to sickness can cause involuntary jaw muscle tension. This clenching or grinding can result in jaw pain, headaches, and general tooth aching. Bruxism often occurs unconsciously, especially during sleep.

Illness can also exacerbate pre-existing dental issues that were minor or unnoticed. A weakened immune response during sickness makes oral tissues more susceptible to inflammation or infection. Consequently, a small cavity, mild gum inflammation, or a minor tooth crack might suddenly become painful or noticeable.

Managing Dental Pain While Sick

Over-the-counter pain relievers can alleviate dental discomfort during illness. Nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen reduce both pain and inflammation. Acetaminophen is also effective for pain relief. Always follow dosage instructions.

Nasal decongestants can help with tooth pain from sinus pressure. These medications reduce swelling in nasal passages, alleviating pressure on upper teeth. Decongestant sprays or oral decongestants can thin mucus and improve drainage, reducing sinus congestion.

Maintaining good hydration is important, especially if dry mouth is a factor. Drinking plenty of fluids combats dry mouth by promoting saliva production, which protects teeth and reduces sensitivity. Hydration also supports overall recovery and aids sinus drainage.

Warm saltwater rinses provide temporary relief for inflamed gums and general oral discomfort. A mixture of about half a teaspoon of salt in eight ounces of warm water, swished for 15-30 seconds, soothes irritated tissues. Saltwater has antimicrobial properties that reduce bacteria and inflammation.

Consuming soft, non-acidic foods helps avoid irritating sensitive teeth. Foods like cooked vegetables, mashed potatoes, yogurt, or soft fruits are gentler and require less chewing. Avoiding extremely hot, cold, or sugary foods and beverages is also advisable, as these can trigger sensitivity.

When to Consult a Professional

Seek professional dental or medical attention if dental pain persists or worsens despite managing illness symptoms. If pain lasts longer than two days or becomes severe, a dental evaluation is warranted. General toothaches related to illness usually resolve as sickness subsides, but persistent pain may indicate an underlying dental problem.

Pain localized to a single tooth, especially if intense or throbbing, often suggests a specific dental issue. Sinus-related tooth pain typically affects several upper teeth. Differentiating between widespread and localized pain helps determine the source.

Signs of infection, such as facial or gum swelling, pus, severe pain when chewing, or a fever linked to dental issues, require immediate professional attention. These symptoms could indicate a dental abscess or other serious infection that will not resolve on its own and can spread if left untreated.

If dental pain continues after all other illness symptoms have cleared, it strongly indicates an underlying dental problem needing professional diagnosis and treatment. A lingering toothache after recovery suggests the pain was not solely a symptom of the general illness. Prompt dental care can prevent issues from worsening and leading to more complex treatments.