Can Cannabis Damage Your Teeth?

How smoking weed affects your oral health


Research has proven that there are far worse vices than cannabis use. Across the spectrum, alcohol use does far more psychological and physical damage than smoking weed. However, there is one rather major caveat: Cannabis may damage your teeth.

Numerous studies have been done on cannabis use and dental health. One of the more notable is a major 2016 study from Duke University that measured the health of 1,000 New Zealanders who had been consuming cannabis for more than 20 years.

What researchers found surprised them. While cannabis didn’t seem to have any adverse effects on physical health functions like blood pressure, cholesterol, body mass index, and lung function, it did seem to have a significant impact on their teeth and gums.

So just how detrimental can cannabis use be for your teeth? As the legalization of marijuana becomes more prominent, we want to keep you informed about the possible effects of cannabis on your oral health. For years we’ve known that tobacco damages the gums and teeth, leading to more harmful health issues. In this article, we will examine how cannabis can damage your teeth.

Smoking Cannabis vs. Smoking Tobacco

According to the American Dental Association (ADA), smoking weed could cause many periodontal complications. The report published on the ADA website states that smoking marijuana can cause similar periodontal health defects to that of tobacco smokers.

The report notes that chronic smoking of marijuana results in similar respiratory pathologies as tobacco smoking. This is because, in both cases, you are bringing smoke into your mouth. In other words, some effects aren’t necessarily cannabis-related. Merely the act of smoking is responsible.

The gums do not like smoke. Experts have linked cannabis use to gingivitis, spots on the gums, and inflammation of the oral mucosa. However, according to the ADA, it’s unclear whether irritants like orally inhaled smoke, rather than cannabis itself, could be a contributing cause.

According to the federal Centers for Disease Control, the act of smoking anything is bad for the teeth. Smoking may stain the teeth and further dry out the mouth. However, the science is new, and people often use cannabis and tobacco together. Therefore, it’s not easy to know whether tobacco or cannabis, in particular, is worse for the teeth.

How Cannabis Use May Affect Your Teeth

Although the act of smoking may be the cause of certain side effects, marijuana itself may cause dental problems through the systemic effects it has on the body.

Depending on the potency level of the cannabis you are consuming, it could affect your oral health will differently. Let’s discuss some of the main concerns.

Dry Mouth

We often associate dry mouth with cannabis due to the effects it has on the cholinergic system. The cholinergic system is part of the central nervous system (CNS) and THC affects it dramatically.

Smoking pot can cause the salivary glands to produce less saliva than necessary for maintaining a moist and healthy mouth. Saliva acts to limit bacterial growth and neutralize acids. When you experience dry mouth, the reduced saliva causes the mouth to “freak out.”

The dry mouth effect results in an increased risk of gum disease, cavities, and inflammation of the mouth and lips. Overgrowth of the gums may also be present.

Snack Attack

Cannabis users are very familiar with the effects of getting high. One of the main compounds found in cannabis, THC, acts as an appetite stimulant. Yes, most of us have heard all about the phenomenon that is “the munchies.” Consuming weed increases your desire to snack.

Because most of the choices of snacks are cariogenic, they elevate the risk of cavities. Allowing fatty and sugary foods to remain on the teeth for long periods of time may cause problems that require dentists’ expertise.

Damage to Tooth Enamel

Along with the damage to tooth enamel that is an indirect result of the mouth-drying effects of smoke, the combustion from smoke has other directly negative effects. Firstly, the smoke will stain the enamel of the teeth. Secondly, the smoke itself has a chemistry that fuses with the water in the mouth to form acids that contribute to demineralization.

The Side Effects of Smoking Cannabis On Oral Health

A comprehensive 2005 review from the Australian Dental Journal reported that cannabis users generally have poorer overall oral health than non-users. Some of the problems included an increased risk of periodontal disease, tooth decay, and oral infections, along with less healthy gums and higher plaque scores.

This study also discussed a condition that is unique to pot smokers known as “cannabis stomatitis.” It’s a condition in which the thin lining of cells around the mouth undergoes changes and can lead to small, chronic lesions in the tissues. This increases the risk of oral cancer. However, it’s also important to note that the study concluded that current knowledge on how cannabis affects periodontal health is inadequate.

A more recent study, published in the Journal of Periodontology in 2017, examined data from nearly 2,000 dental patients who the authors asked about cannabis use. They corrected the data for alcohol use, age, and tobacco use.

The study examined tooth decay and probing depth (an indicator of periodontal disease). They found that both were significantly higher among regular users than non-users. The authors did not propose a mechanism in the study. Even though multivariate analysis ruled out many lifestyle-related factors, it’s difficult to imply causation based on the methods of the study.

What Can You Do to Limit Health Concerns?

Research regarding cannabis and the health of your teeth is far from conclusive. However, there’s enough evidence to indicate that it’s wise to be cautious. Here are a few ways that you can protect your oral health while still enjoying the benefits of cannabis use.

  • Good oral health routines: Stay hydrated, brush and floss more often, use a heavily fluoridated toothpaste to protect against decay. Try a microbial mouth rinse to kill excess bacteria in the mouth to combat dry mouth.
  • Try chewing gum: Research suggests that chewing gum may be beneficial to the mouth. Not only does the act of chewing promote good oral health, but it also stimulates the salivary glands, cleans the teeth, and fights against dry mouth.
  • Antimicrobial cannabinoids: The oral cavity is full of potential sources of infection. Certain cannabinoids in particular – like CBD and CBG – are good antimicrobial compounds
  • Talk to your dentist about your cannabis use: Experts encourage cannabis users to talk to their dentists about it. Even if you live in a state where marijuana is still illegal, your dentist needs to be aware of additional health risks and necessary precautions.

Final Thoughts on Cannabis and Oral Health

Research is still limited, but studies show that, on average, cannabis users tend to suffer from a higher risk of dental complications and oral infection. Smoking seems to be the main concern when it comes to the detrimental effects that cannabis use has on the teeth. However, other methods may also cause oral damage.

Regular cannabis users concerned about the effects that smoking pot has on their teeth should seek advice from their dental care provider.

Article Sources:
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