The flu season often brings a variety of symptoms, ranging from fever to sore throat. However, something that many people may not expect is the possibility of developing a toothache during a flu infection. Although it may seem unrelated, there is a surprising connection between the flu and tooth pain. In this guide, we’ll explore the ways the flu can affect your dental health, including sinus infections, dehydration, and more. Understanding these connections is essential for recognising and addressing tooth discomfort during flu season. Learn more about maintaining oral health with our top oral care tips in Marsden Park.
What Is the Link Between the Flu and Tooth Pain?
It’s not uncommon for people to associate toothaches with dental issues such as cavities or gum disease, but the flu can also trigger tooth pain. Flu symptoms like sinus congestion, fever, and dehydration can all contribute to discomfort in your teeth and gums. If you’ve experienced a toothache while fighting off the flu, it’s important to know that this could be due to factors directly related to the virus. Regular dental visits can help clarify the cause; explore our check-up and clean services in Marsden Park.
Sinus Infections and Tooth Pain
One of the most common reasons flu sufferers report toothaches is sinus congestion. The flu often causes inflammation in the sinuses, which are located near the upper jaw. When these sinuses become blocked or infected, they can put pressure on the roots of the upper teeth, particularly the molars. This can lead to a feeling of tooth pain or pressure in the upper jaw. Sinusitis, or inflammation of the sinuses, is a frequent companion to the flu and is often the cause of this type of toothache. Read more about sinus infections and dental issues.
The pain can often be mistaken for dental problems, but it’s actually coming from the sinus cavities. The upper molars are most affected because their roots are closest to the sinuses. If you’re suffering from a toothache during the flu, it may be worth considering whether sinus congestion could be the cause.
How Dehydration from the Flu Contributes to Tooth Sensitivity
Dehydration is another flu symptom that can contribute to tooth pain. When you’re ill, especially with a fever or cold, you may not drink enough fluids, leading to dehydration. This lack of moisture can cause your mouth to become dry, which can lead to discomfort in the teeth and gums. The lack of saliva can make your teeth more sensitive to hot and cold foods, leading to a sensation of tooth pain. Learn more about tooth sensitivity and dental issues.
Dry mouth, also known as xerostomia, is common during flu season, especially when you’re battling a fever or congestion. The salivary glands reduce their function, leaving your mouth more susceptible to discomfort. This can also increase the risk of cavities, as saliva plays a key role in neutralising acids and protecting against tooth decay. Discover our preventative dentistry services in Marsden Park to protect against decay.
Can the Flu Cause Jaw Pain?
The flu can also cause muscle aches and tension, which may lead to jaw pain. When you’re sick, especially with a fever, your body may experience muscle soreness. This can affect the muscles in your face and jaw, leading to discomfort or pain in the jaw area. Additionally, flu symptoms like coughing, sneezing, or even fatigue can cause you to clench your jaw, which might contribute to soreness in the teeth or jaw muscles.
Sometimes, the pressure from coughing or sneezing can also create discomfort in the mouth, making your teeth or jaw feel sore. It’s important to differentiate between typical tooth pain from dental issues and pain that may arise from flu-related muscle tension or sinus pressure. For professional cleanings to prevent related issues, check out comprehensive teeth cleaning.
How to Recognise Flu-Related Tooth Pain
Not all tooth pain is related to the flu. Here are a few signs to help you identify if your toothache could be flu-related:
- Tooth pain in the upper jaw: If the pain is concentrated around the upper molars and it coincides with sinus congestion, this could be a sign of a sinus infection.
- Increased sensitivity: If you notice your teeth are more sensitive to hot or cold beverages, dehydration may be contributing to the issue.
- Jaw soreness: If your jaw feels sore or tight and this develops after other flu symptoms, muscle tension may be to blame.
If you experience any of these symptoms during the flu, it’s important to understand that the flu virus could be causing or contributing to your tooth pain.
Managing Flu-Related Tooth Pain
If you’re dealing with tooth pain during the flu, there are steps you can take to manage it:
- Stay Hydrated: Drink plenty of water, herbal teas, or broths to prevent dehydration and keep your mouth moist. This will help alleviate dry mouth and tooth sensitivity.
- Use a Humidifier: A humidifier can help keep your sinuses moist, reducing pressure in the sinus cavities and alleviating tooth pain caused by sinus congestion.
- Saltwater Rinses: Rinsing your mouth with warm saltwater can help soothe any irritation in the gums or teeth. It’s also helpful for alleviating inflammation in the mouth caused by sinus infections.
- Pain Relief: If the pain is severe, over-the-counter pain relief medications such as ibuprofen or paracetamol can help reduce both flu symptoms and dental discomfort.
Regular dental visits can help prevent complications. Read why Marsden Park residents need regular dental check-ups.
How to Differentiate Between Flu-Related Tooth Pain and Dental Issues
It’s important to recognise the differences between flu-related tooth pain and dental issues that require professional attention. Here are a few ways to tell them apart:
| Flu Symptom | Potential Tooth-Related Issue | Description |
|---|---|---|
| Sinus Congestion | Tooth pain (especially upper molars) | Pressure from sinuses can radiate to the upper jaw. |
| Dehydration | Increased tooth sensitivity and potential decay | Lack of moisture in the mouth can cause sensitivity. |
| Jaw Tension | Jaw pain and teeth sensitivity | Muscle aches or tension from the flu can cause jaw discomfort. |
If you are unsure about the cause of your toothache, it’s always a good idea to consult with a dentist to rule out any underlying dental problems. Discover our emergency dentistry services in Marsden Park for urgent concerns.
Is Your Flu Causing Tooth Pain? Call M&M Dental Care for Expert Advice
If you are experiencing tooth pain during the flu, it’s essential to take action to relieve discomfort and avoid further complications. At M&M Dental Care in Marsden Park, we understand the challenges that come with managing oral health during flu season. Our experienced team of professionals can help you determine whether your tooth pain is flu-related or due to another issue, providing the appropriate guidance and treatment to ensure your comfort. Schedule your visit today via our contact page in Marsden Park.
References
- Australian Dental Association. (2020). Dental Health and Flu Season. Retrieved from https://www.ada.org.au
- HealthDirect Australia. (2021). Sinus Infection and Tooth Pain. Retrieved from https://www.healthdirect.gov.au
Frequently Asked Questions (FAQs)
- Can the flu cause toothaches?
Yes, the flu can cause toothaches due to sinus congestion, dehydration, and muscle tension, all of which can affect your dental health. - How does sinus congestion cause tooth pain?
Sinus congestion can put pressure on the roots of your upper teeth, particularly the molars, leading to pain in the upper jaw. - Can dehydration during the flu make my teeth sensitive?
Yes, dehydration can cause dry mouth, which increases tooth sensitivity and makes your teeth more vulnerable to discomfort. - How can I prevent tooth pain during the flu?
Staying hydrated, using a humidifier, and practicing good oral hygiene can help reduce the risk of tooth pain during flu season. - When should I see a dentist for tooth pain during the flu?
If your tooth pain persists after flu symptoms subside or if it worsens, it’s a good idea to consult with a dentist to rule out any underlying dental issues. - Can jaw pain during the flu be related to the flu itself?
Yes, flu-related muscle tension and coughing can cause jaw pain. However, it’s essential to differentiate this from dental issues by consulting with a dentist.

