Can ill-fitting dentures cause sinus problems?

Ill-fitting dentures can cause various oral health issues, and one potential concern is their impact on sinus health. The sinuses, are air-filled cavities located in the facial bones, and they play a crucial role in regulating airflow, filtering pollutants, and producing mucus.

Recently, there have been more reports of a condition known as maxillary sinusitis that can occur due to problems with the teeth and the maxillary sinus (cavity in the upper jaw). In the past, about 10 to 12% of maxillary sinusitis cases were caused by dental issues, but this has increased to 30% to 40%.

These dental causes include problems like a hole between the mouth and the sinus left after tooth extraction, foreign objects (like damaged soft lining material from ill-fitting dentures), or infections around the roots or gums of the teeth.

Foreign bodies typically comprise broken tooth roots or occasionally whole teeth that have been displaced. Though dental tools, dental filling materials, dental implants, and impression material can also accidentally enter the sinuses during dental or surgical procedures or due to trauma.

There have also been cases where the silicone soft lining material used in dentures enters the maxillary sinus through a hole connecting the mouth and the sinus (oroantral fistula). Sometimes, it may go unnoticed initially and cause symptoms weeks later, including inflammation, sinusitis, sinus congestion, and sinus headaches.

Can ill-fitting dentures cause sinus problems

Case of Foreign Objects in Sinuses

Foreign objects in the sinuses are not common, but they can cause problems. These foreign objects can include things like pieces of broken tooth roots, dental filling materials, dental implants, or dental impression materials. They usually happen because of dental treatments or if there is a hole connecting the mouth and the sinus, allowing them to accidentally enter the sinuses during dental or surgical procedures or due to trauma.

Symptoms of denture lining fragments in sinuses

In one particular case, a silicone soft lining material used in dentures entered the maxillary sinus through a hole connecting the mouth and the sinus, known as an oroantral fistula. This fistula is a known complication that can occur after the extraction of certain upper molar and premolar teeth. Sometimes, it may go unnoticed initially and cause symptoms weeks later.

The presence of foreign bodies in the sinuses can lead to inflammation and sinusitis by interfering with the normal clearance of mucus. Additionally, certain materials like acrylic resin, which is often used in denture lining, can increase the risk of infections such as aspiration pneumonia due to their porosity.

Other Sinus Problems Causes by Ill-Fitting Dentures

There are other ways that poorly fitting dentures can contribute to sinus problems, even if a fragment does not directly enter the sinuses, including:

Pressure and Discomfort on the Sinus Area

Ill-fitting dentures can exert excessive pressure on the sinus area, particularly the upper jaw. This pressure can lead to discomfort, pain, and inflammation in the sinus region, contributing to sinus problems.

Effect of Improper Bite Alignment on Sinus Health

When dentures do not provide proper bite alignment, it can affect the balance of forces in the mouth. This imbalance can lead to abnormal pressure distribution on the sinus area, potentially causing sinus problems over time.

Nasal Congestion and Postnasal Drip

Ill-fitting dentures can impede proper airflow through the nasal passages, leading to nasal congestion and postnasal drip. This obstruction can disrupt sinus drainage and increase the risk of sinus problems.

Symptoms of Sinus Problems Caused by Ill-Fitting Dentures

Identifying the symptoms associated with sinus problems caused by ill-fitting dentures is crucial for prompt intervention and appropriate treatment.

Chronic Sinus Congestion or Stuffy Nose

Persistent nasal congestion or a constantly stuffy nose can indicate an underlying sinus issue caused by ill-fitting dentures. This symptom may be accompanied by difficulty breathing through the nose.

Facial Pain or Pressure

Discomfort or pressure in the facial area, particularly around the sinus region, can be a sign of sinus problems resulting from ill-fitting dentures. This pain or pressure may worsen while wearing the dentures.

Headaches and Migraines

Sinus-related headaches can occur when the sinuses become inflamed or congested due to ill-fitting dentures. These headaches can be throbbing and may worsen with prolonged denture use.

Persistent Postnasal Drip

An excessive flow of mucus from the back of the nose into the throat, known as postnasal drip, can be a symptom of sinus problems caused by ill-fitting dentures. This can lead to throat irritation and coughing.

Bad Breath or Altered Taste

Sinus problems related to ill-fitting dentures can also contribute to unpleasant breath odor and a change in taste perception. These symptoms may result from chronic inflammation and the accumulation of bacteria in the sinus cavities.

Sinusitis and aspiration pneumonia

When a communication between the oral cavity and the maxillary sinus occurs (oroantral fistula) following tooth extraction, it can serve as a conduit for oral bacteria and debris to enter the sinus.

When foreign objects or substances enter the sinuses, they can disrupt the normal functioning of the sinus lining and impair the clearance of mucus. This can lead to inflammation and infection, resulting in sinusitis.

Additionally, certain materials, such as dental impression material or acrylic resin, can provide a favorable environment for bacterial colonization, further contributing to sinus infections.

If the foreign objects or substances within the sinuses are aspirated into the lungs, they can cause aspiration pneumonia. Aspiration pneumonia occurs when bacteria or foreign matter enter the lungs and lead to infection and inflammation.

Seeking Professional Help

If you experience ongoing sinus problems while wearing dentures, it is advisable to consult a dental professional, such as a dentist or prosthodontist. These specialists can evaluate your dentures, oral health, and sinus condition to provide appropriate guidance.

During a dental examination, your prosthodontist will assess the fit and function of your dentures, as well as examine your oral tissues and sinuses. This evaluation will help determine if your dentures are contributing to sinus problems.

In some cases, further evaluation by an otolaryngologist (ear, nose, and throat specialist) may be required to assess and manage sinus issues associated with ill-fitting dentures. This collaboration between dental and medical professionals ensures comprehensive care.

Treatment options for foreign objects in sinus

Sometimes, small foreign objects in the maxillary sinus can come out on their own, but in most cases, they need to be removed due to the increased risk of long-term sinus problems.

There are different techniques for removing these foreign objects, such as using an endoscope (a small camera) or going through the front wall of the upper jaw. In some cases, a combination of these approaches is needed. The best treatment option depends on the size and location of the foreign object and the condition of the maxillary sinus.

Endoscopic surgery is a minimally invasive approach that can help to manage the maxillary sinusitis, which had spread to the ethmoid and frontal sinuses, in order to remove the foreign body.

Please note that an oroantral fistula is a relatively common complication in dental surgery. It can usually heal on its own if it is small, but larger defects require closure. Before closing an oroantral fistula, any existing infection within the sinus needs to be eliminated.

Solutions for Ill-fitting dentures

Addressing ill-fitting dentures and their impact on sinus problems involves various treatment options and preventive measures.

Denture Adjustment and Relining

Professional adjustments and relining of dentures can improve their fit, alleviate pressure on the sinuses, and enhance overall comfort. Dental professionals can make necessary modifications to ensure proper bite alignment and minimize the risk of sinus problems.

Denture Replacement

In cases of severely ill-fitting dentures, replacement may be necessary to restore proper fit and function. New dentures that are properly fitted can help alleviate sinus-related symptoms and improve oral health.

Implant-Supported Dentures

For individuals with significant denture-related sinus problems, implant-supported dentures may be considered. These dentures are secured to dental implants or mini implants, providing enhanced stability and reducing pressure on the sinuses.

Maintaining Good Oral Hygiene and Denture Care

Proper oral hygiene and denture care are essential for preventing oral health issues, including sinus problems. Regular cleaning of dentures and maintaining a clean and healthy oral environment can minimize the risk of ill-fitting dentures causing sinus-related complications.

Regular Dental Check-ups and Adjustments

Regular dental check-ups allow for the early detection of any denture-related issues and enable timely adjustments or interventions to prevent or address sinus problems. Dental professionals can provide guidance on proper denture care and monitor your oral health.

Lifestyle Tips for Sinus Health

In addition to professional interventions, adopting healthy lifestyle habits can contribute to better sinus health and minimize the impact of ill-fitting dentures.

  • Nasal Irrigation and Saline Rinses – Nasal irrigation using a saline solution can help alleviate sinus congestion and promote nasal health. Rinsing the nasal passages with saline rinses can flush out irritants and facilitate sinus drainage.
  • Avoiding Irritants and Allergens – Minimizing exposure to environmental irritants and allergens, such as cigarette smoke, pollutants, and allergens, can reduce the risk of sinus problems. This includes maintaining good indoor air quality and taking appropriate measures to manage allergies.
  • Hydration and Maintaining a Healthy Diet – Staying hydrated and consuming a well-balanced diet rich in vitamins and minerals can support sinus health. Adequate hydration helps thin mucus, facilitating proper sinus drainage.
  • Proper Sleep and Stress Management – Getting sufficient sleep and managing stress levels positively impact overall health, including sinus health. Quality sleep and stress reduction techniques can help maintain a healthy immune system and minimize the risk of sinus problems.

Final Thoughts

Recognizing the connection between ill-fitting dentures and sinus problems is crucial for maintaining optimal oral and sinus health. Seeking professional help, addressing denture-related issues promptly, and adopting healthy lifestyle habits can significantly improve sinus health and enhance overall well-being.


  • Editorial team

    A team comprising oral health care professionals, researchers, and professional Writers, striving to impart you with the knowledge to improve your oral health, and that of your loved ones. 

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