Busting Common Myths About Your Mouth

The health of your mouth can say a lot about the overall health of your body. Because the mouth acts as a portal to the rest of the body, what happens in your mouth can determine how the rest of your body feels and whether you are at risk of developing certain diseases and infections.

If you’re like most people, you probably don’t give your oral health too much thought other than to brush and floss regularly. And while you’re probably familiar with tooth decay, cavities, and gum disease, you might not realize what other types of bacteria can live in your mouth. As your premiere general dentist in Louisville CO, the dentists and staff at Louisville Dental Associates work hard to make sure you have the best information on mouth and oral health

The average person has several billion bacteria in their mouth at any given time, and possibly more bacteria than people on the planet depending on how recently you brushed. Researchers have identified over 700 different kinds of bacteria species that dwell in people’s mouths. While most of this bacteria is harmless, this staggeringly high number helps to underscore the complexity of your mouth. Ongoing research continues to explore how these bacteria are transferred between people, especially through close contact and saliva exchange.

Humans are actually not alone when it comes to the number of bacteria that live in our mouths. The mouths of both dogs and cats contain just as many bacteria, and the old notion that a dog’s mouth is cleaner than a human’s is simply untrue. In fact, there are roughly 100 different types of germs that live in the mouths of our favorite household pets that can make people sick.

Here are some other myths about the health of your mouth that many people mistake as true.

Five Second Rule

As the old adage goes, any piece of food that falls on the floor that’s picked up in under five seconds is okay to eat. While this might sound good to germaphobes, the five second rule is actually arbitrary. Food beings to pick up germs immediately upon hitting the floor, and considering the types of bacteria that can live on hard surfaces, your better off just throwing it way and eating something else.

Kiss Connection

Another popular rumor is that a person can get gum disease by kissing someone who already has the condition or through other forms of close contact. But can gum disease actually be transmitted through kissing? Fortunately, periodontal disease is not directly contagious, and the conditions that cause the disease take time to develop. However, someone who has periodontal disease probably doesn’t take very good care of his or her oral health. If the person doesn’t brush and floss regularly, their mouth is teaming with harmful bacteria, called plaque, that causes tooth decay and gum disease. Plaque can be transferred through exchanging saliva, so kissing someone who suffers from periodontal disease will increase your need to brush and floss regularly. While you can transfer bacteria through close contact like kissing, you don’t directly catch gum disease from the act itself—individual factors like oral hygiene and immune response play a big role. Passing bacteria during kissing is possible, but the actual development of gum disease depends on your own oral health. If you notice symptoms such as red, swollen, or bleeding gums, these are common symptoms of gum disease and should not be ignored. Early treatment is important if you notice any of these symptoms to prevent progression. While the bacteria that cause gum disease can be shared, this does not make the disease contagious in the same way as a cold or flu. The term gum disease contagious can be misleading—bacteria can be transferred, but the disease itself is not directly transmitted. If you suspect you have gum disease, seeking gum disease treatment from a dental professional is essential. Protecting your loved ones by maintaining good oral hygiene can help prevent passing bacteria through close contact. Periodontal disease contagious is a term sometimes used, but it’s important to understand that while bacteria can be shared, the disease itself is not broadly contagious. The mechanism behind this is the ability to transfer bacteria via saliva, which can increase risk but does not guarantee disease. If you notice any symptoms, it’s important to treat them promptly and consult your dentist. Treating gum disease may involve modern methods such as laser therapy, and your dentist can discuss treatment options that are best for your situation.

It’s Okay to Share

The Centers of Disease Control and Prevention recommends that you should never share a toothbrush with someone else. The CDC claims that exchanging bodily fluids by sharing a toothbrush places each person at greater risk for infections. It’s not just sharing toothbrushes that can spread disease. Sharing lipstick, drinking glasses, band instruments, and any other item that goes near your mouth can also freely pass along germs. Sharing eating utensils and sharing utensils like forks, spoons, or straws can also transfer bacteria that contribute to gum disease. Spreading bacteria in this way can increase the risk of oral health issues, so it’s best to avoid sharing items that come into contact with your mouth.

Keep Your Brush Covered

While it might make sense to keep your toothbrush covered while not in use, you’re actually potentially making your brush dirtier than if you leave it out in the open. Placing a wet brush away in a covered space prevents air for from reaching the brush. This causes the brush to stay damp longer. Cool, damp spaces allow germs to fester and grow. So leave your brush out to air dry in your medicine cabinet.

Introduction: Why Mouth Myths Matter

Mouth myths are more than just harmless misconceptions—they can actually put your oral health at risk. When we believe the wrong information about gum disease or how bacteria spread in the mouth, we may neglect important oral hygiene habits or overlook early warning signs. This can lead to poor oral hygiene, a higher risk of developing gum disease (also known as periodontal disease), and even more serious health problems down the line. Understanding the facts about gum disease, how it spreads, and how to prevent it is essential for protecting your well-being. In this article, we’ll bust some of the most common myths about gum disease and oral health, so you can make informed choices and keep your mouth—and your body—healthy.

What is Gum Disease?

Gum disease, also called periodontal disease, is a bacterial infection that affects the gums and the tissues supporting your teeth. It often starts with plaque buildup—a sticky film of bacteria that forms on your teeth and gums. If not removed through regular brushing and flossing, this plaque can harden and lead to inflammation, infection, and eventually, tooth loss. Gum disease can range from mild gingivitis to more severe periodontitis, which can damage the bone that holds your teeth in place. Poor oral hygiene, tobacco products, and certain diseases like diabetes can increase your risk of developing gum disease. The good news is that you can prevent gum disease by practicing good oral hygiene, including regular brushing, flossing, and professional cleanings. Taking these steps not only protects your teeth and gums but also helps prevent other health problems linked to gum disease.

Myth #1: “If My Gums Bleed, It’s Normal”

If you notice your gums bleeding when you brush or floss, don’t ignore it—bleeding gums are not normal. In fact, they’re often one of the first signs of gum disease, which is caused by harmful bacteria building up along the gumline due to poor oral hygiene. Left untreated, bleeding gums can lead to more serious health problems, including advanced periodontal disease and even tooth loss. Sometimes, bleeding gums can also signal other health conditions, such as diabetes or immune system issues. That’s why it’s important to see your dentist regularly to identify the cause and get the right treatment. By maintaining good oral hygiene habits—like regular brushing, flossing, and professional cleanings—you can reduce your risk of developing gum disease and keep your gums healthy.

Myth #2: “Bad Breath Means Poor Hygiene”

While it’s true that poor oral hygiene can cause bad breath, it’s not the only reason your breath might smell less than fresh. Bad breath, or halitosis, can also be a sign of gum disease, which allows bacteria to thrive in your mouth and produce unpleasant odors. Other factors, such as dry mouth, certain foods, tobacco products, and even health conditions like diabetes, can also contribute to bad breath. Practicing good oral hygiene—brushing and flossing regularly, using mouthwash, and avoiding tobacco—can help keep your breath fresh. If you notice persistent bad breath, it’s a good idea to visit your dentist regularly to check for underlying issues and get the right treatment to protect your oral health.

Myth #3: “Cavities Are Only Caused by Sugar”

Sugar often gets the blame for cavities, but it’s not the only factor at play. Cavities, or tooth decay, develop when bacteria in your mouth feed on sugars and starches, producing acids that erode tooth enamel. However, poor oral hygiene, dry mouth, certain diseases, and even the transfer of bacteria from one person to another can also increase your risk of developing cavities. Gum disease can make matters worse by allowing more bacteria to accumulate around your teeth. That’s why it’s important to practice good oral hygiene habits—regular brushing, flossing, and dental care—to keep bacteria in check. Limiting sugary foods and drinks, using fluoride toothpaste, and seeing your dentist regularly can all help prevent cavities and support your overall oral health.