Why Sinus Infection Tooth Pain Occurs

A couple talking about tooth pain from sinusitis

If you've ever suffered from any type of tooth pain, you know how uncomfortable it can be. There are multiple reasons one can suffer from tooth pain. Some of the more common ailments include cavities, a cracked tooth or tooth sensitivity resulting from cold or hot foods. A lesser known cause of tooth pain is a sinus infection. If you suffer from sinus infection tooth pain, here's some information to be aware of.

Sinus Infections

Sinusitis, more commonly referred to as a sinus infection, occurs when the nasal passage cavities become swollen and inflamed, according to SingHealth. The sinuses are unable to drain which causes a mucus build-up. It's usually caused by the common cold but can also result from allergies. Once the sinuses are blocked, the moist environment created by an excess of mucus creates a fertile ground for infections. Other symptoms that could affect your oral health are bad breath and nasal discharge with mucus dripping to the back of the throat.

Tooth Pain

In many instances, the cause of tooth pain is evident (take a long gulp of some cold water on that tooth for confirmation). But a sinus infection can be the culprit due to the main mantra of real estate: location, location, location. The roots of the upper molars are in close proximity to the sinus cavities. So when the sinuses become infected and swollen, the resulting pain is often mistakenly believed to have originated in the teeth. If you think you have a sinus infection, make an appointment to see your doctor. Over-the-counter medications might offer some pain relief but a physician is the best person to advise on your course of treatment.

Easing Tooth Pain

In addition to seeing your doctor – who might prescribe an antibiotic for pain relief – you can try some of the home remedies suggested by the U.S. National Library of Medicine as well. Use a warm compress on your face several times each day. Increase your fluid intake as a means of thinning the mucus. Inhale steam from a hot shower several times a day and use a humidifier in your bedroom when sleeping. Alleviating your tooth pain will result from treating the sinus infection.

While sinus infection tooth pain is one specific cause of teeth turmoil, do your best to avoid all types of toothaches. That starts with regular check-ups at your dentist. They will be able to diagnose potential issues, such as cavities or gum disease, that may result in a toothache. Your dentist and dental hygienist can also help you develop a good oral care plan that involves brushing twice a day and flossing daily.


This article is intended to promote understanding of and knowledge about general oral health topics. It is not intended to be a substitute for professional advice, diagnosis or treatment. Always seek the advice of your dentist or other qualified healthcare provider with any questions you may have regarding a medical condition or treatment.

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Common Conditions During ADULTHOOD

As we get older, dental care for adults is crucial. Here are a few of the conditions to be aware of:

Gum disease – if your home care routine of brushing and flossing has slipped and you have skipped your regular dental cleanings, bacterial plaque and tartar can build up on your teeth. The plaque and tartar, if left untreated, may eventually cause irreparable damage to your jawbone and support structures, and could lead to tooth loss.

Oral cancer – according to the National Institute of Dental and Craniofacial Research, men over the age of 40 have the greatest risk for oral cancer. About approximately 43,000 people will be diagnosed with cancer of the mouth, tongue or throat area, and the ACS estimates that about 7,000 people will die from these cancers. The use of tobacco products and alcohol increases the risk of oral cancer. Most oral cancers are first diagnosed by the dentist during a routine checkup.

Dental fillings break down – fillings have a life expectancy of eight to 10 years. However, they can last 20 years or longer. When the fillings in your mouth start to break down, food and bacteria can get underneath them and can cause decay deep in the tooth.

Keep your teeth clean with an oral health routine.

Establishing an oral health routine is important for a healthy mouth. Try one of our oral health products to help you establish a schedule.