What Does MDMA Do to Your Teeth
In this post
When people talk about MDMA, they usually talk about mood, energy and music. Teeth almost never come up, and that is strange, because teeth are one of the parts of the body that MDMA harms most clearly. The damage is not hidden deep inside the body where only a scan can find it. It shows in the mirror: teeth worn flat, chipped at the edges, sore gums, and a jaw that aches in the morning. The reason is simple. MDMA makes the jaw clench and the teeth grind, and at the same time it dries out the mouth, taking away the saliva that protects teeth. Put those two things together, hour after hour, and teeth take a beating they were never built to survive.
Most of the damage happens without the person noticing. Grinding often goes on while someone is busy dancing, talking, or lost in the music, and the jaw can stay tight for hours. A dry mouth does not hurt, so it is easy to ignore. By the time a tooth cracks, a filling breaks, or a dentist points out that the enamel has worn thin, months of harm have already piled up. This article explains, in plain words, what MDMA does to teeth and to the mouth around them: why the jaw clenches, why the mouth dries out, how decay gets a head start, and what the long-term cost looks like. It is general information only, not personal medical or dental advice. If you are worried about your teeth, or about your use of MDMA, a qualified dentist or health professional is the right person to talk to.
Why the Mouth Takes Such a Hard Hit
MDMA is a stimulant, which means it speeds the body up. The heart beats faster, the body runs hotter, and the muscles stay tense. The jaw muscles are no exception. They are some of the strongest muscles in the body, and when they lock up under the influence of MDMA, they press the teeth together with a force that normal chewing never reaches. Chewing is a controlled movement: the teeth meet, crush food, and part again. Clenching is different. The teeth are held together, hard, for minutes at a time, and grinding slides them against each other while they are pressed together. That sliding is what wears teeth down, and it goes on for as long as the drug is active, often for hours.
At the same time, MDMA cuts down the flow of saliva. Saliva is the mouth’s quiet caretaker. It washes food away from teeth, it softens the acids that attack enamel, and it carries minerals that help repair the tiny damage teeth suffer every day. When saliva dries up, all of that protection goes with it. The mouth becomes a dry place where acid lingers, food sticks, and bacteria grow more easily. Teeth that are already being ground down are now being ground down without their normal shield. It is a bad combination, and it is the reason dentists take MDMA seriously as a cause of dental harm.
The setting makes things worse. MDMA is often used at late-night gatherings, clubs and festivals, where people dance for hours in hot, crowded rooms. In that setting, nobody is thinking about their teeth. Nobody stops to notice that their jaw has been tight for two hours, or that their mouth is dry, or that they have been chewing gum or clenching without a break. Water is often forgotten, or replaced by sugary drinks that add acid and sugar to a mouth that has no saliva left to deal with them. By the time the night ends, the mouth has had hours of grinding, hours of dryness, and hours of acid, all without a pause. The damage from one night is small. The damage from many nights is not.
Grinding and Clenching: The Damage You Do Not Feel
The jaw clenching that MDMA causes is often called bruxism, and it is the single biggest threat to teeth from this drug. The pressure is far greater than most people realise. When you bite down hard, your jaw can press your teeth together with many times the force of ordinary chewing, and when you grind, that force drags one tooth across another. Enamel is the hardest substance in the human body, but it is not built to survive hours of that treatment. Bit by bit, the surface wears away, and the wear shows first on the biting edges of the front teeth and on the flat tops of the back teeth, which slowly become smooth and flat.
Once enamel wears thin, the problems begin. The layer underneath, called dentine, is softer and more sensitive, and when it is exposed, hot drinks, cold water and sweet food can send a sharp pain through the tooth. Small cracks can appear in the enamel, and those cracks can grow until a corner of a tooth breaks off. Fillings, which are meant to last for years, can crack or fall out under the same pressure. Teeth that were once even and strong become uneven, shorter, and easier to break. None of this heals on its own. Enamel does not grow back, and a tooth that has been ground down stays ground down until a dentist repairs it.
The jaw itself suffers too. Hours of clenching tire the jaw muscles, and the ache can last for days after use. Some people wake the next morning with a jaw so stiff and sore that opening the mouth to eat breakfast hurts. The joint that connects the jaw to the skull can become painful, click when the mouth opens, or feel as though it catches. Headaches are common, and the pain can spread to the ears, the temples and the neck. People often blame the headache on tiredness or a lack of sleep, when the real cause is a jaw that has been working far too hard for far too long. Over months of repeated use, this becomes a regular pattern: the night out, then days of jaw pain, headaches and tender teeth, and then the next night out starts the cycle again.
Dry Mouth Opens the Door to Decay
A dry mouth is easy to dismiss, because it does not hurt. But for teeth, a dry mouth is one of the most dangerous things that can happen. Saliva does far more than keep the mouth wet. Every time you eat or drink something sweet or acidic, bacteria in the mouth turn the sugar into acid, and that acid starts to soften the enamel. Saliva washes that acid away, brings the mouth back to a safe balance, and returns minerals to the enamel so it can harden again. When MDMA stops saliva from flowing, the acid stays where it is. It sits on the teeth for hours, softening them, and the bacteria that produce it grow faster in a dry mouth than in a wet one.
The drinks people reach for make the problem worse. Sweet fizzy drinks, energy drinks and fruit juices are all acidic and full of sugar, and in a mouth with no saliva, they are far more damaging than they would be on an ordinary day. Sweets and chewing gum add more sugar on top. The result is that decay gets a head start. It begins in the places that are hardest to clean: between teeth, along the gum line, and in the small grooves on the chewing surfaces. A cavity that might have taken a year to form can form much faster when the mouth is dry again and again, weekend after weekend.
The signs of decay creep up slowly. At first there may be white spots on the enamel, or a tooth that feels rough where it used to feel smooth. Then the tooth becomes sensitive to cold and sweet things. Then the hole grows, and eating on that side starts to hurt. If decay reaches the soft centre of the tooth, the pain can become severe, and the tooth may need a filling, a root treatment, or removal. All of this can be set in motion by a mouth that stays dry for hours at a time, night after night. It is a slow process, and that is exactly why it is so easy to miss until the damage is serious.
Bad breath is another sign of a dry mouth, and it is one people notice before the person does. Bacteria that thrive without saliva produce smells, and food that is not washed away adds to the problem. Cracked lips, a sore tongue and a raw feeling inside the cheeks are common too, because the soft tissues of the mouth also need moisture to stay healthy. None of these things is dramatic on its own. Together, they are the early warning signs that the mouth is being worn down from the inside, and they deserve to be taken seriously rather than laughed off as a normal part of a night out.
Gums and the Soft Tissue Inside the Mouth
Teeth are only half the story. The gums that hold them in place suffer too, and gum damage is often what leads to teeth becoming loose and falling out. Healthy gums are firm and pink, and they hug each tooth tightly. When the mouth is dry and bacteria build up along the gum line, the gums become inflamed. They turn red, they swell, and they bleed when brushed. This is the early stage of gum disease, and it is common in people who use MDMA regularly, because the dry mouth and the bacteria give the gums no chance to recover between uses.
If the inflammation is left alone, it goes deeper. The gums begin to pull away from the teeth, forming small pockets where more bacteria collect, out of reach of a toothbrush. The bone that holds the teeth in place can start to weaken. Teeth that were once firmly held begin to feel slightly loose, and the gaps between teeth can widen. At this stage the damage is much harder to reverse, and treatment becomes longer and more expensive. Gum disease does not usually hurt much in its early stages, which is why people ignore bleeding gums for months or years, and that silence is part of what makes it so destructive.
The soft tissue inside the mouth takes its own punishment. When the jaw clenches and grinds, people often bite the inside of their cheeks or their tongue without realising it. The bites leave raw, sore patches that sting when eating or drinking. Because the mouth is dry and the body is tired after use, these sores heal more slowly than they should, and new bites happen before the old ones have healed. Mouth ulcers can appear too, small painful spots that make eating and speaking uncomfortable for days. Smoking alongside MDMA, which many people do, adds another layer of harm, because smoke dries the mouth further and slows healing in the gums and soft tissue. The mouth ends up fighting on several fronts at once, and it loses ground a little at a time.
Bleeding gums also change the small routines of the day. Brushing becomes something to dread, because the sink fills with pink water and the gums sting. Many people respond by brushing more gently, or less often, which only lets more bacteria build up, so the bleeding gets worse. Flossing hurts and is abandoned. The mouth can develop a sour taste that stays through the day, and the breath can turn stale even after brushing. These are not dramatic symptoms, and that is why they are so often ignored, but they are the mouth’s way of saying that the tissue holding the teeth is under attack. A person who notices blood every time they brush should treat it as a signal, not as a normal part of life, because healthy gums do not bleed every day.
Eating, Speaking and Everyday Pain
Dental damage is not only a matter for the dentist’s chair. It changes ordinary days in small, irritating ways that add up. Chewing becomes harder when the jaw is sore and the teeth are sensitive. Hard foods, crusty bread, nuts and raw vegetables, can be painful to bite into, so people start avoiding them, or chewing only on one side. Meals take longer, food is enjoyed less, and the diet quietly narrows to soft, easy foods that are often less healthy. A sore tooth can make a simple meal feel like a chore, and that changes how a person eats for weeks after each use.
Speaking can hurt too. Talking for a long time with a stiff, aching jaw is tiring, and the jaw can feel as though it will not open properly. Some people find that their jaw clicks or locks for a moment when they yawn or take a big bite, which is frightening the first time it happens. The pain from the jaw often spreads. It sits behind the ears, it presses at the temples, and it tightens the neck and shoulders, so the whole head and neck feel strained. These aches are easy to blame on a bad night’s sleep, but when they follow the same pattern after every use, the jaw is usually the cause.
Sensitivity to hot and cold is another daily cost that people underestimate. When enamel wears thin and the softer layer beneath is exposed, an ordinary cup of tea or a glass of cold water can send a sharp, sudden pain through a tooth. Ice cream, cold air on a winter morning, even breathing in through the mouth on a cold day can sting. People start to avoid the foods and drinks they enjoy, or they learn to drink through a straw, or to chew on one side only. It sounds like a small adjustment, but it changes the pleasure of eating and drinking, and it is a reminder at every meal that the teeth have been damaged. Special toothpaste can ease the sensitivity for some people, but it cannot rebuild the enamel that has been lost, and the sensitivity tends to return whenever the grinding starts again.
Sleep suffers as well. A jaw that aches can make it hard to fall asleep, and grinding can carry on through the night, long after the drug has worn off, as the tense muscles keep working in sleep. The result is a morning that starts with a headache and a stiff face, on top of the tiredness that already follows MDMA use. Over time, the combination of poor sleep, jaw pain and sensitive teeth leaves people feeling worn down in a way that is hard to pin to one cause. It is the slow accumulation of small pains, and it is one of the reasons regular users often say they feel older than their years.
Why the Damage Adds Up Instead of Healing
The hardest truth about teeth is that they do not heal the way the rest of the body does. A cut on the skin closes in days. A bruise fades in a week. Enamel, once worn away, never grows back. A tooth that has been ground shorter stays shorter. A gum that has pulled back from a tooth does not creep back on its own. This means that every episode of grinding and dry mouth leaves a permanent mark, however small, and those marks add up across months and years of use. The mouth does not get a fresh start. It carries the history of every night.
Repeated use also means the mouth rarely gets a proper chance to recover. Saliva returns after a day or two, and the jaw muscles relax, but the enamel that was lost is gone, and the gums that bled are still weakened. If the next use comes before the mouth has settled, the damage starts from a worse place than before. Poor sleep and poor eating in the days after use slow healing further, because the body repairs itself best when it is rested and well fed, and those are exactly the days when rest and food are hardest. The pattern is a slow downward slope: each use takes a little more, and the mouth gives a little less back.
Money is part of the story too, because dental damage gets more expensive the longer it is left. A small cavity caught early needs a simple filling. The same cavity left alone can need a crown, a root treatment, or the loss of the tooth altogether. Gum disease caught early can be treated with cleaning and better care. Advanced gum disease can need surgery and can still end in tooth loss. Replacing lost teeth with bridges or implants costs far more than most people expect, and the work takes months. Many people put off going to the dentist because of the cost, and the delay makes the final bill larger, not smaller. It is a trap that catches many regular users, and it is one of the most practical reasons to take the early signs seriously.
Fear of the dentist plays its own part in the delay. Many people who use MDMA already feel nervous about what a dentist will say, and the worry about being judged keeps them away for years. Toothache is treated with painkillers instead of a visit, and a broken tooth is hidden behind a closed mouth. But a dentist cannot fix what they never see, and the tooth that hurts today will hurt more next month. The pain itself starts to affect the rest of life: sleep is broken by throbbing, work is harder when every bite hurts, and the mood sinks because pain is exhausting. What began as a dental problem becomes a problem for the whole day, every day, and the only way out of it runs through a dentist’s chair that should have been visited much earlier.
What a Dentist Sees, and What Happens Next
Dentists can often tell that someone has been grinding their teeth before the person mentions it. The signs are plain: biting surfaces worn flat and smooth, front teeth shortened and chipped at the edges, fillings cracked or flattened, and gums that are red, swollen and receding. The pattern of wear is different from the wear of normal ageing, and it is often more severe in a younger person than the dentist would expect. A dentist who sees this pattern will usually ask about grinding, stress and drug use, not to judge, but because the cause matters for the treatment. A mouthguard can protect teeth from further grinding at night, but it cannot stop the grinding that happens while someone is using MDMA.
Stopping use is what stops new damage. Once MDMA is out of the picture, saliva flow returns to normal, the jaw muscles relax over days and weeks, and the mouth stops being battered every weekend. That does not undo the enamel that is already gone, or the teeth that are already shortened, but it draws a line. What is lost stays lost, and what remains can be protected. Dentists can repair chipped teeth, replace failed fillings, treat gum disease and fill cavities, and the sooner that work happens, the simpler and cheaper it is. A check-up that finds a small problem early is always better than a visit forced by pain months later.
There is no shame in telling a dentist the truth about what is happening. Dentists see grinding and drug-related damage regularly, and their job is to fix teeth, not to lecture. What matters is honest information, because the right treatment depends on knowing the cause. A person who is grinding because of MDMA needs a different conversation from a person who is grinding because of stress, and a dentist can only help properly when they know which it is. If the use of MDMA itself feels hard to stop, that is a matter for a health professional or a drug support service, and asking for that help is a sign of sense, not weakness. The teeth cannot wait for the perfect moment. Every month of delay is another month of wear that cannot be undone.
My Take:
I will start with the thing that strikes me most about MDMA and teeth, which is how visible the damage is, and how invisible it stays at the same time. A person who uses MDMA regularly can look in the mirror every morning and miss it. Teeth wear down slowly, a fraction of a millimetre at a time, and the eye adjusts to the change. Gums recede slowly, and the change is easy to miss. It is only when a tooth cracks, or a dentist holds up a mirror and points, or a photograph from two years ago shows a smile that looks different, that the truth lands. I find that sad, because the damage was there all along, growing quietly, and nobody said anything, least of all the person it was happening to.
I do not think people who use MDMA set out to damage their teeth. Nobody takes a drug with the aim of grinding their own teeth down. The harm happens because the drug takes away the two things that would normally protect you: awareness and saliva. You do not notice the grinding, because your attention is elsewhere, and your mouth cannot protect itself, because the saliva has dried up. It is harm without a decision, and that is what makes it so unfair. The person is not choosing to hurt their teeth. Their body is doing it while they are not looking. That is why I think honest information matters more here than warnings. People cannot guard against something they do not know is happening.
The grinding is the part I keep coming back to, because it is so needless and so severe. The jaw is a powerful machine, and when it is set to work for hours without a break, it does what any machine does under too much load: it wears itself out. Enamel is hard, but it is thin, and once it is gone, it is gone for life. I think about the young people I have read about, people in their twenties with teeth worn down to the level of someone twice their age, and I think about what that means for the next fifty years of their lives. Those teeth have to eat, speak and smile for decades, and they have already been used up. That is a heavy price for nights out, and it is a price that nobody mentions when the drug is offered.
The dry mouth matters more than most people realise, and I think it is the part of the story that gets least attention. A dry mouth does not hurt, so it does not demand attention. But saliva is the reason most of us can eat sugar and drink acidic drinks without our teeth falling apart. Take the saliva away for hours at a time, again and again, and the whole balance of the mouth changes. Acid sits on the teeth. Bacteria grow. Decay that should have taken years arrives in months. I would like more people to understand this, because it is simple, it is true, and it changes how you think about the drug. It is not only the grinding that damages teeth. It is the dryness, hour after hour, that lets decay in through the door.
Money is a part of this story that I think about a lot, because dental work is expensive and it is rarely covered in full. A filling is one cost. A crown is a bigger one. Replacing a lost tooth is bigger still, and it is not a one-time cost, because replacements need care and sometimes need replacing themselves. I think about a person in their thirties facing thousands in dental bills for damage that started in their twenties, and I think about what else that money could have done. It could have been a deposit, a holiday, a cushion against hard times. Instead it goes to repairing teeth that did not need to be broken. That is a real, practical loss, and it lasts long after the nights out are forgotten.
The smile is the part that hurts most to think about, because it is the first thing other people see. Teeth shape the face, and when they wear down, shorten or fall out, the face changes with them. People become shy about smiling. They cover their mouth when they laugh. They avoid photographs. That is not a small thing. A smile is how we greet the world, how we show warmth, how we put people at ease. Losing confidence in your smile changes how you move through life, and it can change how other people see you, in work and in relationships. I do not say this to frighten anyone. I say it because the dental damage from MDMA is not only about teeth. It is about how a person feels about themselves, every single day, when they look in the mirror.
I am also honest about the fact that stopping is the only thing that truly stops new damage. A mouthguard can help at night, and a dentist can repair what is broken, but neither of those things stops the grinding that happens while the drug is active. Only not using the drug does that. I know that is a hard thing to hear, and I know that for some people stopping feels impossible, or at least very difficult. But I think it is better to say it plainly than to pretend that a mouthguard or a better toothbrush is enough. They help, and they are worth doing, but they are not a solution to the cause. The cause is the drug, and the damage will keep coming as long as the drug keeps coming.
There is one supposed fix I want to mention, because I hear about it often, and that is chewing gum. Many people chew gum while using MDMA, because it gives the jaw something to do and it feels as though it helps. In my view, it does not solve the problem. The jaw is still working hard, the teeth are still under pressure, and if the gum is sugary, it is feeding the same bacteria that a dry mouth has already let loose. Sugar-free gum is less harmful than sugary gum, but it still does not stop the grinding, and it still does not bring the saliva back. I understand why people reach for it. It feels like doing something. But feeling like you are doing something is not the same as protecting your teeth, and I think people deserve to know the difference.
That said, I do not think shame helps anyone here. A person who goes to the dentist with worn teeth and bleeding gums is not a bad person. They are a person whose teeth have been through a hard time, and they deserve a dentist who treats them with respect and fixes what can be fixed. I would say to anyone in that position: tell the dentist the truth. Dentists have seen this before, many times, and they cannot give you the right help if they do not know the cause. The visit may feel embarrassing for ten minutes. The repair will last for years. That is a good trade, and it is one I would urge anyone to make.
I think about the friends and partners of people who use MDMA, because they often notice the changes first. A partner notices the jaw clenching, the clicking when the mouth opens, the complaints about toothache that keep coming back. A friend notices that someone has stopped smiling in photographs. These are small observations, and they are easy to dismiss, but they are often the first honest signals that something is wrong. If you have noticed these things in someone you care about, I think it is worth saying something, gently and without judgement. Not a lecture, and not an accusation, but a simple observation: your jaw seems sore a lot, and your teeth look worn. Have you thought about seeing a dentist? That kind of honesty, offered kindly, can be the nudge that saves a person years of dental trouble.
Young people worry me most in this story, because their teeth are meant to last a lifetime and they are being worn down before life has really started. A person of twenty who grinds their teeth flat has sixty years of eating and smiling ahead of them with teeth that are already damaged. The dental bills, the pain, the loss of confidence, all of it arrives early and stays late. I think young people deserve to know this before they start, not after the damage is done. It is not a scare story. It is a fact about how the drug works, and it is a fact that should be part of every honest conversation about MDMA. If someone had told me at twenty that a drug could wear my teeth down permanently, I would have thought twice, and I think most young people would too.
I am not going to pretend that dental damage is the worst thing MDMA can do. It is not. The drug carries risks to the heart, to body temperature and to mood that are more dangerous in the short term. But teeth are the damage that stays with you every day, in every meal, in every photograph, in every smile. It is the damage you cannot hide and cannot forget, because it is in your mouth all the time. I think that matters, and I think it deserves more attention than it gets. When people weigh up whether to use MDMA, they think about the night ahead. They rarely think about their teeth at forty, or fifty, or sixty. This article is my attempt to put those teeth into the picture, because they belong there.
If you use MDMA and you have noticed your jaw aching, your teeth feeling sensitive, or your gums bleeding, I would ask you to take those signs seriously. They are not random, and they are not going to go away on their own. See a dentist, tell them what is happening, and get an honest picture of where your teeth stand. At the same time, think seriously about whether the drug is worth what it is costing your mouth. That is a question only you can answer, but it is a question worth asking honestly, with the full facts in front of you. Your teeth cannot speak for themselves. They can only ache, crack and wear down, and hope that you notice in time.
Finally, I would say this to anyone who has never used MDMA and is thinking about trying it: the dental damage is one more reason to leave it alone. It is not the only reason, and it is not the most dramatic reason, but it is one of the most lasting. A night out lasts a few hours. Worn enamel lasts for life. That is a simple fact, and I think it is worth carrying with you the next time the offer comes around. Your teeth are yours for life, and they are worth more than a night.
If a friend offers you MDMA at a party, you will probably hear about the music, the energy and the feeling of closeness. You will not hear about the jaw clenching, the dry mouth, or the teeth ground flat by the end of the night. Nobody offers a drug by listing its dental bill. That is why I think it is worth knowing the full picture before you decide, not the version that gets told in the moment. You can always say no, and saying no to a pill costs you nothing. Saying yes can cost you teeth that you will never get back, and I think that is a poor exchange for a single night.
If you are a parent and your teenager or young adult child comes home with a sore jaw, or you notice their teeth looking worn, or they complain about sensitive teeth again and again, I would ask you to pay attention. These signs can have many causes, and MDMA is only one of them, but they are worth a calm conversation and a dental check-up either way. Asking a direct question, without anger and without panic, is more likely to get an honest answer than a confrontation. Your child may not tell you everything, but they may tell you enough, and a dentist can fill in the rest. The goal is not to catch them out. The goal is to protect teeth that have to last a lifetime, and to do it while the damage is still small.
One more thing I want to say plainly: dental damage from MDMA is not a reason to give up on your teeth, and it is not a reason to hide from the dentist. It is a reason to act. The mouth can be repaired, the gums can be treated, and the remaining teeth can be protected, but only if someone looks at them and does the work. The worst thing you can do is nothing, because nothing is what lets a small chip become a broken tooth, and a bleeding gum become a lost tooth. Doing something, even something small, like booking a check-up, is the start of turning it around, and it is a start that is available to anyone, at any time.
Frequently Asked Questions
Why does MDMA dry out the mouth?
MDMA is a stimulant, and one of its effects is to reduce the flow of saliva. The drug affects the nerves that control the salivary glands, so the mouth produces far less saliva than normal, and the dryness can last for hours. Saliva normally washes away food and acid and protects the enamel, so when it dries up, the teeth lose that protection. Dancing and sweating in a hot room make the dryness worse, because the body is losing fluid. The dry mouth usually eases as the drug wears off, but during those hours the teeth are left exposed to acid and bacteria with no defence.
Can MDMA cause gum disease?
Yes, it can contribute to gum disease. A dry mouth lets bacteria build up along the gum line, and those bacteria irritate the gums, making them red, swollen and likely to bleed when brushed. That early stage is called gingivitis, and if it is left alone it can develop into more serious gum disease, where the gums pull away from the teeth and the bone that holds them weakens. MDMA does not cause gum disease on its own in a single night, but repeated use, with repeated dry mouth and bacterial build-up, makes gum disease much more likely, and harder for the mouth to fight off.
Does MDMA make teeth fall out?
MDMA does not make teeth fall out overnight, but it can set in motion the damage that leads to tooth loss over time. Heavy grinding wears teeth down and can crack them, and a cracked tooth that is left untreated can become infected and may need to be removed. Gum disease, which is made worse by the dry mouth MDMA causes, can loosen teeth by weakening the gums and the bone that hold them in place. So while no single use causes a tooth to fall out, months or years of regular use can lead to teeth being lost through decay, cracking and gum disease.
How does MDMA affect the jaw?
MDMA makes the jaw muscles tense up and clench, and it often causes grinding, where the teeth are pressed together and slid against each other. This can go on for hours while the drug is active, and the person may not even notice it happening. The jaw can be left stiff, sore and aching for days afterwards, and the joint where the jaw meets the skull can click or feel as though it catches. Over time, repeated clenching can wear teeth down, damage fillings, cause headaches, and leave the jaw painful to open fully.
Can MDMA damage your teeth?
Yes. MDMA damages teeth mainly in two ways: grinding and clenching, which wear away the enamel and can chip or crack teeth, and dry mouth, which removes the saliva that protects teeth from acid and decay. Together, these two effects make teeth more likely to wear down, develop cavities, and become sensitive to hot, cold and sweet foods. The damage builds up with repeated use, because enamel does not grow back, and a tooth that has been ground down or decayed stays damaged until a dentist repairs it.
Does MDMA cause teeth grinding?
Yes, teeth grinding is one of the most common and well-known effects of MDMA. The drug stimulates the muscles, and the jaw muscles in particular tend to tighten and grind the teeth together. Many people who use MDMA notice themselves clenching, chewing gum constantly, or waking the next day with a sore jaw. The grinding often happens without the person realising it, especially while dancing or talking, and it can last for hours. It is one of the main reasons MDMA is linked with worn, chipped and cracked teeth.
