Night Guard vs Store-Bought Mouthguard: Which One Is Better?

Published on
July 15, 2026
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Wondering if you need a custom nightguard or a store-bought mouthguard? Learn the difference, signs of teethgrinding, and how The Denver Dentists can help protect your teeth fromclenching, grinding, jaw pain, and nighttime tooth damage.

If you wake up with jaw pain, headaches,sensitive teeth, or sore facial muscles, you may be grinding or clenching yourteeth at night. This is called bruxism, and it is more common than many peoplerealize.

One of the most common ways to protect yourteeth from grinding is by wearing a night guard. But when patients startlooking into their options, they usually wonder, “Do I really need a customnight guard from the dentist, or can I just buy a mouthguard from the store?”

It is a fair question. Store-bought mouthguardsare cheaper and easy to find. Custom dental night guards cost more upfront, butthey are designed specifically for your teeth, your bite, and your grindingpattern.

So which one is better? Let’s break it down.

What Is a Night Guard?

A night guard is a dental appliance worn whileyou sleep to help protect your teeth from grinding and clenching. When yougrind your teeth, the pressure can slowly damage your enamel, fillings, crowns,and natural tooth structure.

Over time, teeth grinding can lead to worn-downteeth, chipped teeth, cracked teeth, tooth sensitivity, jaw pain, headaches,sore facial muscles, gum recession, broken dental work, and TMJ discomfort. Anight guard acts as a protective barrier between your upper and lower teeth. Ithelps absorb some of the pressure from clenching and grinding so your teeth donot take the full force.

What Is a Store-Bought Mouthguard?

A store-bought mouthguard is anover-the-counter appliance you can buy at a pharmacy, grocery store, or online.There are usually a few types, including one-size-fits-all mouthguards,boil-and-bite mouthguards, soft sports mouthguards, and online mail-order nightguards.

These options may seem convenient because theyare inexpensive and do not require a dental visit. For some people, they mayfeel like a simple starting point. The problem is that they are not madespecifically for your mouth.

What Is a Custom Dental Night Guard?

A custom dental night guard is made by adentist using a scan or impression of your teeth. It is designed to fit yourbite more accurately than a store-bought mouthguard. At The Denver Dentists, wecan evaluate your teeth, jaw, bite, and signs of grinding to determine whethera custom night guard is the right option for you.

A custom night guard may be recommended if youhave teeth grinding or clenching, morning jaw pain, frequent headaches, toothwear, cracked or chipped teeth, sensitive teeth, TMJ symptoms, broken fillingsor crowns, or a history of grinding through store-bought guards. Because it ismade for your mouth, a custom night guard typically fits more comfortably,stays in place better, and provides more reliable protection.

What We See in Our Denver Dental Office

At The Denver Dentists, we often see patientswho do not realize they are grinding or clenching until we show them the signsduring an exam. Many people come in because they have sensitive teeth, jawsoreness, headaches, or a cracked tooth, but they have no idea how muchpressure their teeth are taking at night.

Common signs we see include flattened bitingedges, tiny chips, worn enamel, gum recession, cracked fillings, broken crowns,and soreness in the chewing muscles. Sometimes a patient’s teeth tell the storybefore they ever feel pain. That is why a custom night guard can be soimportant. It helps protect your teeth before grinding damage turns into largerrestorative dental needs.

Night Guard vs Store-Bought Mouthguard: What Is theDifference?

The biggest differences are fit, comfort,durability, and protection. A store-bought mouthguard is made to fit manydifferent mouths. A custom night guard is made to fit your specific teeth. Thatdifference matters.

If a mouthguard is bulky, loose, uncomfortable,or uneven, you may not wear it consistently. It may also change how your teethcome together while you sleep, which can sometimes make jaw discomfort worse. Acustom dental night guard is designed to fit securely and comfortably so it iseasier to wear every night.

Why Fit Matters So Much

A night guard only helps if you actually wearit. Many store-bought mouthguards are bulky and uncomfortable. Some patientsfind that they gag on them, chew through them quickly, or take them out whilesleeping without realizing it.

A poor fit can cause sore teeth, gumirritation, drooling, difficulty sleeping, jaw soreness, trouble breathingcomfortably, the guard falling out at night, or uneven pressure on the teeth. Acustom night guard is designed to match your teeth more closely. This helps itfeel less bulky and more stable.

The better the fit, the more likely you are towear it consistently. Consistency is what protects your teeth over time.

How Dr. Burson Evaluates Teeth Grinding and Clenching

When we evaluate a patient for a custom nightguard, we are not just asking whether they grind their teeth. We look at thefull picture.

At The Denver Dentists, Dr. Kenneth Bursonevaluates tooth wear patterns, cracked enamel, chipped edges, gum recession,tooth sensitivity, sore chewing muscles, jaw tension, damage to existingfillings, crowns, veneers, bridges, or implants, how the upper and lower teethcome together, and whether certain teeth are taking too much pressure.

This helps us determine whether a custom dentalnight guard is appropriate and what type of guard may give the patient the bestprotection.

Our Approach to Night Guard Recommendations

At The Denver Dentists, we do not recommendcustom night guards just because someone mentions grinding. We look at the fullpicture: tooth wear, chipped enamel, cracked teeth, gum recession, jawsymptoms, bite forces, and the condition of any existing dental work.

Our recommendations are based on clinicaltraining, advanced dental education, diagnostic imaging, and years ofexperience helping patients protect their teeth from grinding and clenchingdamage. We also pride ourselves on recommending treatment the same way we wouldfor our own family members.

If a store-bought mouthguard may be enough as ashort-term option, we will tell you. If we believe a custom night guard is thebetter long-term choice, we will explain what we are seeing and why betterprotection may be worth it. Our goal is to help you prevent avoidable toothdamage, protect your dental work, and make a decision that feels right for yourhealth, comfort, and budget.

Can a Store-Bought Mouthguard Help With Teeth Grinding?

Sometimes, but it depends on the person. Astore-bought mouthguard may offer temporary protection if you need somethingright away. However, it may not be the best long-term solution for moderate tosevere teeth grinding or clenching.

Many over-the-counter guards are made fromsofter material. People who grind heavily may chew through them or find thatthe soft texture encourages more chewing. Store-bought mouthguards also do notaddress your specific bite, tooth wear, cracked teeth, or jaw symptoms.

If you have ongoing jaw pain, headaches, toothsensitivity, cracked teeth, or broken dental work, it is a good idea to see adentist for a proper evaluation.

Why We Recommend Custom Night Guards Over Store-BoughtGuards

Store-bought mouthguards can seem like an easysolution, but many patients stop wearing them because they feel bulky, loose,or uncomfortable. Some patients chew through them quickly. Others find thatthey make their jaw feel more tired in the morning.

A custom night guard is designed from a digitalscan or impression of your teeth, which allows for a more precise fit. When anight guard fits well, patients are more likely to actually wear it. Thatconsistency is what protects the teeth from long-term grinding and clenchingdamage.

For patients who have invested in crowns,veneers, implants, bridges, or large fillings, a custom night guard can alsohelp protect that dental work from excessive nighttime force.

Signs You May Need a Custom Night Guard

You may benefit from a custom dental nightguard if you notice jaw pain when you wake up, morning headaches, toothsensitivity, flattened or worn teeth, chipped teeth, cracked teeth, sore facialmuscles, clicking or popping in the jaw, tightness in your temples, brokenfillings or crowns, teeth that look shorter than they used to, or a partnerhears you grinding at night.

Many people do not realize they grind theirteeth because it happens while they are sleeping. Often, the first signs aretooth wear, jaw soreness, or unexplained dental damage.

Why Teeth Grinding Should Not Be Ignored

Teeth are strong, but they are not built tohandle constant grinding pressure night after night. Over time, bruxism canwear down enamel and place stress on your teeth, gums, jaw joints, and dentalrestorations.

Untreated grinding can contribute to crackedteeth, broken teeth, gum recession, tooth sensitivity, worn enamel, bitechanges, TMJ pain, and expensive dental repairs. A night guard does not stopthe grinding habit itself, but it can help protect your teeth from the damagecaused by grinding and clenching.

Is a Custom Night Guard Worth It?

For many patients, yes. A custom night guardusually costs more than a store-bought mouthguard, but it can help preventbigger dental problems later. Protecting your teeth now may help you avoidcracked teeth, broken crowns, damaged fillings, or more extensive restorativetreatment.

A custom night guard may be especially worth itif you have already invested in dental work, such as crowns, veneers, implants,bridges, or fillings. Think of it as a tiny security system for your smilewhile your jaw is running the night shift.

Can a Night Guard Help With TMJ Pain?

A night guard may help reduce stress on theteeth and jaw muscles, especially if your TMJ discomfort is related toclenching or grinding. However, TMJ symptoms can have different causes. Jawpain, clicking, popping, locking, headaches, and facial soreness should beevaluated by a dentist so you can understand what is contributing to theproblem.

A custom night guard may be part of thesolution, but the first step is a dental exam.

How Long Does a Custom Night Guard Last?

The lifespan of a custom night guard depends onhow heavily you grind or clench, the material used, and how well you care forit. Some patients can wear the same night guard for years. Others who grindheavily may need replacements more often.

To help your night guard last longer, rinse itafter each use, brush it gently with a soft toothbrush, let it dry beforestoring it, keep it in its case, avoid hot water, and bring it to dental visitsso your dentist can check the fit. If your night guard becomes cracked, loose,worn through, or uncomfortable, it may be time for a replacement.

Night Guard vs Mouthguard: Which One Should I Choose?

A store-bought mouthguard may be okay as a veryshort-term option, but it is not ideal for everyone. A custom dental nightguard is usually the better choice if you want a more comfortable, durable, andprotective solution for teeth grinding or clenching.

The best option depends on your symptoms, yourbite, your dental history, and the amount of damage already present.

Need a Custom Night Guard in Denver?

If you wake up with jaw pain, headaches, toothsensitivity, or notice signs of grinding, The Denver Dentists can help. We canevaluate your teeth, bite, jaw, and existing dental work to determine whether acustom night guard is right for you. If you need one, we can create a nightguard designed specifically for your mouth so you can protect your teeth whileyou sleep.

Wondering whether you need a custom night guardor a store-bought mouthguard? Schedule a dental exam with The Denver Dentiststoday. We will help you find the best way to protect your smile from grinding,clenching, and nighttime tooth damage.

Written by The Denver Dentists team. Reviewed for clinicalaccuracy by Dr. Kenneth Burson, MS, DDS, FAGD. Dr. Kenneth Burson is the owner dentist at The Denver Dentists andImplant Center in Denver, Colorado. He focuses on comprehensive restorativedentistry, same-day CEREC crowns, implant dentistry, cosmetic dentistry, andlong-term treatment planning.

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