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The Connection Between Sealants and Sleep Apnea

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Sleep apnea is a common sleep disorder that affects millions of people worldwide. It is characterized by pauses in breathing or shallow breaths during sleep, leading to disrupted sleep patterns and a range of health issues. While there are various treatment options available for sleep apnea, recent research has suggested a potential connection between sealants and the development or exacerbation of this condition. In this article, we will explore the relationship between sealants and sleep apnea, examining the scientific evidence and discussing the implications for individuals with dental sealants.

The Basics of Sleep Apnea

Before delving into the connection between sealants and sleep apnea, it is important to understand the basics of this sleep disorder. Sleep apnea is categorized into three main types: obstructive sleep apnea (OSA), central sleep apnea (CSA), and complex sleep apnea syndrome (CSAS).

1. Obstructive Sleep Apnea (OSA): This is the most common form of sleep apnea, accounting for approximately 84% of cases. OSA occurs when the muscles in the throat relax, causing the airway to become partially or completely blocked. This obstruction leads to pauses in breathing, often accompanied by loud snoring or choking sounds as the individual struggles to breathe.

2. Central Sleep Apnea (CSA): Unlike OSA, CSA is not caused by a physical obstruction in the airway. Instead, it occurs when the brain fails to send the proper signals to the muscles responsible for breathing. As a result, the individual experiences pauses in breathing without any effort to inhale.

3. Complex Sleep Apnea Syndrome (CSAS): CSAS, also known as treatment-emergent central sleep apnea, is a combination of both obstructive and central sleep apnea. It typically occurs when an individual with pre-existing OSA starts using continuous positive airway pressure (CPAP) therapy, which is a common treatment for sleep apnea.

Now that we have a basic understanding of sleep apnea, let’s explore the potential connection between dental sealants and this sleep disorder.

The Role of Dental Sealants

Dental sealants are a preventive dental treatment used to protect the teeth from decay. They are typically applied to the chewing surfaces of the back teeth (molars and premolars), which are more prone to cavities due to their grooves and pits. The sealant material forms a protective barrier, preventing bacteria and food particles from getting trapped in these areas and causing tooth decay.

1. What are Dental Sealants Made of?

Dental sealants are usually made of a plastic resin material that is applied to the tooth surface. The process involves cleaning the tooth, applying an acidic gel to roughen the surface, rinsing off the gel, and then applying the sealant material. Once applied, the sealant is hardened using a special light, creating a protective shield over the tooth.

2. Benefits of Dental Sealants

Dental sealants offer several benefits, including:

  • Preventing tooth decay: By sealing off the grooves and pits on the chewing surfaces of the teeth, dental sealants reduce the risk of cavities.
  • Easy application: The process of applying dental sealants is quick and painless, making it an accessible preventive treatment for both children and adults.
  • Cost-effective: Compared to the cost of treating cavities and other dental issues, dental sealants are a cost-effective preventive measure.
  • Long-lasting protection: With proper oral hygiene and regular dental check-ups, dental sealants can provide protection for many years.

While dental sealants are generally considered safe and effective, recent studies have raised concerns about their potential impact on sleep apnea.

Research has suggested a potential connection between dental sealants and sleep apnea, particularly in individuals who already have a predisposition to the condition. The primary concern revolves around the composition of dental sealants and their potential to release volatile organic compounds (VOCs) over time.

1. Volatile Organic Compounds (VOCs)

Volatile organic compounds are chemicals that can easily vaporize at room temperature. They are commonly found in various products, including paints, cleaning agents, and adhesives. Some studies have found that certain dental sealants may contain VOCs, such as bisphenol A (BPA) and triethylene glycol dimethacrylate (TEGDMA).

2. Potential Health Effects

Exposure to VOCs has been associated with various health effects, including respiratory issues, allergies, and hormonal disruptions. In the context of sleep apnea, the concern is that the inhalation of VOCs released from dental sealants could potentially worsen or contribute to the development of the condition.

3. Existing Research

While the research on the connection between sealants and sleep apnea is still limited, some studies have provided insights into this potential link. For example, a study published in the Journal of Clinical Sleep Medicine found that individuals with higher levels of BPA in their urine were more likely to have sleep apnea. However, it is important to note that this study did not specifically focus on dental sealants as the source of BPA exposure.

Another study published in the Journal of Applied Oral Science investigated the release of TEGDMA from dental sealants and its potential impact on the respiratory system. The researchers found that TEGDMA exposure led to increased oxidative stress and inflammation in lung cells, suggesting a possible connection between dental sealants and respiratory issues.

While these studies provide some evidence of a potential link between sealants and sleep apnea, further research is needed to establish a definitive connection and understand the underlying mechanisms.

Considerations for Individuals with Dental Sealants

If you have dental sealants or are considering getting them, it is important to be aware of the potential connection with sleep apnea. Here are some considerations to keep in mind:

1. Discuss with Your Dentist

If you have sleep apnea or are at a higher risk of developing the condition, it is crucial to discuss this with your dentist before getting dental sealants. They can provide personalized advice based on your specific situation and help you make an informed decision.

2. Choose BPA-Free Sealants

When getting dental sealants, opt for BPA-free options. Many dental sealants on the market are now formulated without BPA, reducing the potential risk associated with this compound.

3. Regularly Monitor Your Sleep Apnea Symptoms

If you already have dental sealants and experience symptoms of sleep apnea, such as loud snoring, daytime fatigue, or morning headaches, it is important to consult with a healthcare professional. They can evaluate your symptoms and recommend appropriate diagnostic tests or treatment options.

The Future of Sealants and Sleep Apnea Research

While the current research on the connection between dental sealants and sleep apnea is limited, it highlights the need for further investigation. Future studies should aim to:

  • Examine the release of VOCs from different types of dental sealants and their potential impact on sleep apnea.
  • Investigate the prevalence of sleep apnea in individuals with dental sealants compared to those without.
  • Explore the underlying mechanisms through which dental sealants may contribute to or worsen sleep apnea.
  • Assess the long-term effects of dental sealants on sleep apnea and overall respiratory health.

By expanding our understanding of the relationship between sealants and sleep apnea, we can better inform individuals with dental sealants and improve the overall management of sleep apnea.


While the connection between dental sealants and sleep apnea is still being explored, it is important to consider the potential risks and benefits associated with this preventive dental treatment. Individuals with a predisposition to sleep apnea or those already diagnosed with the condition should discuss their concerns with a healthcare professional or dentist. By staying informed and proactive, individuals can make informed decisions about their oral health and overall well-being.

Remember, dental sealants are just one aspect of oral health, and maintaining good oral hygiene practices, such as regular brushing, flossing, and dental check-ups, remains essential for preventing tooth decay and other dental issues.

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