If you train Muay Thai, Boxing, or MMA the most important piece of equipment you will use is a combat mouthguard. Without a proper mouthguard, you can end up suffering more head trauma and even fracture your teeth. Whenever you are sparring or clinching you need to wear a mouthguard. It doesn’t matter if you are light sparring with big gloves on, all it takes is one small punch to knock a tooth out.

While you might think, “it will never happen to me,” I have seen dozens of guys lose teeth in training. Not only is it extremely uncomfortable to have a tooth knocked out, it also costs a lot of money (thousands) in dentist fees. I had my own tooth chipped once in training, and it was simply because I forgot to put in my mouth guard.

The price of a quality mouthguard is nothing compared to how much money you will end up saving by protecting your teeth from the dreaded dentist. Healthy teeth and a nice smile are two things you take for granted until you lose them. So it goes without saying that you shouldn’t be afraid to invest in money to keep them protected.

***Update 2020*** Since my original review, I have added a new Mouthguard to the list. The OPRO Power-fit Mouthguard has taken my top spot on the list. Even though it is a boil and bit, it feels like a custom guard. 

My NEW Top Pick for 2020

I recently lost my custom Mouthguard and needed a quick option that I could order from Amazon. Since I wanted to spar within a few days, I didn’t have the time to get a Custom Mouthguard since it requires you to mail the mouthguard back to get fitted. After doing research on Amazon, I ordered the OPRO Power-fit Mouthguard and I was blown away.

The mouthguard fitting system from OPRO ensures that you get a fit that feels like a custom Mouthguard, but pay less than half the price. At $34.99 (current price on Amazon) I don’t think you will find a better mouthguard.

The fit and feel of the OPRO Power-Fit Mouthguard is next level. I have used this mouthguard for hard Boxing and Muay Thai sparring and I can tell you that it fits like a custom Mouthguard. You can talk and breathe and the mouthguard stays in your mouth.

The reason that OPRO stands above the rest of the competition is because of their patented molding system called the Power-cage fitting system. How it works is that after you boil the mouthguard, you put the mouthguard into the power-cage (a two ringed cage that holds the OPRO as you put it into your mouth).

When you bit down on the mouthguard with the power-cage system, it allows for a custom fit imprint. I can honestly say that the imprint looks nearly identical to my custom fit guard, which I paid over $150 for.

If I sound enthusiastic about OPRO, its because I am. I must have told a half a dozen people at my gym to buy the mouthguard after I used it for a week. They have a patented fitted system that makes the mouthguard fit better than any other boil and bite I have tried on the market.

The teeth impression is the almost same as my custom fit Mouthguard

The OPRO comes in a number of different color options, which for me is a bonus. I dont care about the look of a mouthguard, as long as it does the job. While you pay more than other boil and bite mouthguards, for $35 you can protect your teeth from thousands of dollars in potential dental work.

MY Verdict:



This mouthguard fits just as good as my custom fit one.

I understand looking to save money on your equipment, but you should invest in the best mouthguard you can afford. In my opinion, everyone who trains can afford to buy this mouthguard.

I highly recommend you try the OPRO Power-Fit mouthguard if you need it for any contact sport.

Click Here to Read Reviews on Amazon

Most combat mouthguards are designed to only cover your upper teeth. While they will often allow for impressions of your bottom teeth on the bottom of the mouthguard, they will be custom fitted for your upper jaw.

While the thickness of the mouthguards will vary from the materials used to the manufacturer, the purpose of the mouthguard is to prevent your teeth from clashing together and to help distribute the blow of a hard strike throughout your entire jaw.

How Mouthguards Work

When you get hit by an impact to your face the impact of the punch or kick sends a shock wave from your jaw to the rest of your skull. A direct impact to the front of the teeth can even cause a fracture to your teeth. Often when you receive a hard uppercut hits your lower jaw it will cause your teeth to slam together, resulting in the bottom teeth pushing the front teeth from underneath. Essentially your teeth will bang together, which is the leading cause of a chipped or fractured tooth.

I had my front tooth chipped from an uppercut I received when I was playing around sparring with a trainer. The uppercut caused my bottom teeth to smash my front tooth, which caused the front tooth to break off.

In cases of extreme impact, the force of the impact can cause a fracture of the lower jaw or it can cause a concussion if the brain receives a strong enough ‘jolt’ from the force.why wear a mouthguard

The mouthguard is designed to be a shock absorber and spread the impact of the force throughout a much larger area, which helps decrease the particular impact to a particular area. Be distributing of the blow, it will reduce the amount of damage which will prevent and vastly reduce the amount of injuries your receive. The outer cushion of the mouthguard will also prevent the lower jaw and upper jaw from colliding together, which can cause the teeth to fracture.

In essence, mouthguards are not only good for your teeth, they also prevent jaw fractures and help reduce the chance that you get a concussion when you spar. This is the most important piece of equipment that you can use when you spar.

Combat Sport (MMA, Muay Thai, Boxing) Mouthguards

Mouthguards are generally placed into two different categories: Light Impact Mouthguards and High Impact (combat sport) Mouthguards.

Someone who is looking to purchase a mouthguard to stop grinding their teeth at night is going to need a completely different guard than someone who is taking full impact punches to their face. Similarly, someone who plays a non impact sport like basketball, will require a thinner mouthguard than a Boxing, MMA, or Muay Thai Fighter.

Using your Mouthguard Effectively

The key to using mouthguards effectively is to make sure you bite down on the guard before you take an impact. If your jaw is loose and you take a punch, it will protect your teeth but it will shake your jaw which will lead to feeling ‘rocked.’

Keeping your teeth clenched together before a strike to the face will keep your jaw tight, which will prevent you from taking more trauma then necessary. Some of the worst hits I have taken in sparring was because I was relaxed and playing around with my jaw loose, and I got hit with an unexpected punch. When you brace for the impact, it will allow you to distribute the shock throughout your jaw.

MMA, Boxing and Muay Thai mouthguards are designed to be thicker to help absorb the shock to your face. You will often find that some of these mouthguards have a few layers EVA material designed to absorb excessive shock to the teeth. If you use a thinner mouthguard when you are sparring, there is always that chance that you can damage your teeth because mouthguard may not disperse the impact of the punches throughout your face.

The thicker mouthguards allow more shock absorption and dispersal of the direct impact of a punch. This is something that you have to look for when you are purchasing a mouthguard. The downside of the thicker mouthguard is that it takes more time to get used to wearing. This is one of the reasons why I always recommend you purchase a custom mouthguard over the typical boil and bite guards.

Boil and Bite Mouthguards

The first type of mouthguard that you will encounter is the boil and bite mouthguards. These mouthguards are the do-it-yourself mouth guards that require a bit of work to ensure that you get the right fit. If you manage to walk through the process correctly then you should have a guard that will offer you good protection.

Here is a guide on how to form a boil and bite mouthguard:

Boil and bite mouthguards are made from a gel like plastic that is designed to soften when they are heated in water and then harden up after they cool off. This process allows the wearer to boil the guard and press it to their teeth. This creates an outline of the teeth that allows the mouthguard to fit snug to the wearer.

Recommended Boil and Bite

For those of you who are looking to purchase a boil and bite mouthguard here is a mouthguard I would recommend.

Venum Predator Mouthguard (See Reviews on Amazon)

venum predator

The reason I like Venum is because they offer more protection than some of the other brands out there. While this still isn’t as good as a custom fit mouthguard, for less than $20 you is a good place to start if you want to have something right away.

The Venum mouthguards are made with a high density rubber frame to help absorb some of the shock and impact that you feel.

If you mold a boil and bit mouthguard correctly, it can offer good protection and keep your teeth in place.

If price is your biggest factor when looking for a mouthguard, Venum offers a well priced product that can offer decent protection.

My Verdict

Buy it ……..if you can’t afford a custom mouthguard

The Venum Predator mouthguard is a good starting guard that you can use when you want to spar. As you develop and improve your game, you may want to switch to a custom mouthguard later on.

Click Here to See the Latest Reviews on Amazon

I should point out that 95% of people who use mouthguards use the boil and bite option because they are cheap and they work if done correctly. Getting a custom mouthguard will cost more money and will often require you to go to a dentist to get it fitted or do your own impression.

So if it comes down to keeping your teeth protected and you don’t want to spend more than $50, then a boil and bite is by far your best option.


  • Cheapest mouthguards available
  • Fastest and easiest option (10 minutes and your ready to go)
  • Provides adequate protection – I used a boil and bite for 3 years and never had any problems


  • Requires you to mold the mouthguard to your own mouth
  • The fit may not be as tight as it should be
  • May come loose if you take a big impact
  • A lot of people don’t mold them correctly resulting in ineffective guards

Custom Mouthguards

If you want to give yourself the best protection then you can go with a custom mouthguard. The benefit of the custom mouthguards are that you get an exact fit and you don’t have to try and mold the mouthguard to your teeth.

To create a custom mouthguard it requires you to take a mold imprint of your teeth which is then used to make the mouthguard based on your exact dimensions.

Here is a video example of how you mold a custom mouthguard:

Custom mouthguards solve the problem that shows up with boil and bite guards with fit. I often see people with boil and bite mouthguards fall out of their mouth if they get hit, which is not good.

If you have a little patience and money to spend on a custom mouthguard, I recommend you get one. These mouthguards offer the best proteciton, fit, and will ensure that they stay put in your mouth when you take a hard strike to the face.

You can purchase custom mouthguards online for less than $90 depending on the size, print and brand that you choose. When you order the mouthguards they will send you an impression kit that you use to take a mold of your own teeth. You take this mold and send it back to the manufacturer who will then create your mouthguard for you.


  • Exact fit – So tight that you have to pull it off with your fingers. You can’t take it out with your tongue
  • When you get hit it won’t get knocked out of place
  • Breathe and speak with ease compared to boil and bite guards that come out easier
  • Ideal for people who train seriously and want the most protection


  • You either need to see the dentist to get your teeth imprints or you need to do your own mold
  • More Expensive than boil and bite

Top Custom Mouthguard

For those of you who are looking to get the absolute best protection, I recommend that you purchase a custom made mouthguard from Impact Custom Mouthguards.

impact-guardsImpact Custom Mouthguards (6-7mm thickness)

Ever since I switched from a boil and bite mouthguard to a custom fit I have never had any issues with my mouthguard in training. While you might get tempted by the cheap $10 mouthguards you see in the store, when you realize how much it costs to replace a broken teeth you won’t even hesitate at ordering a custom guard online.

The difference between a custom Mouthguard is the fit of the guard. When you put in a custom guard you will have to forcible take it out because it is molded so tight to your teeth.

I always recommend you order a custom made mouthguard because they eliminate any error when it comes to trying to form a boil and bit guard. When you do a custom fit they send you an impression kit and you use it to take the exact mold of your gums and teeth. Once the impression kit hardens you send it back to the company and they send you your mouthguard.

impression kit you get in mail

impression kit you get in mail

The difference between a custom fit mouthguard and a boil and bite is night and day. Custom fit guards ALWAYS stay in place and do not move around. I have taken some of the hardest shots in training and I have never had my custom fit mouthguard every come out of my mouth. The fit is tight enough that you can have a full conversation without the mouthguard coming out.

Impact Custom Mouthguards have a range of products from $59-89 in price. I recommend you go with the more expensive model because they are 6-7mm thick. The extra thickness provides you with more impact distribution which offers more protection when you take a heavy blow to the face.

My Verdict

Buy It

I don’t every think you should put a price on protecting your teeth. For under $90, Impact Custom Mouthguards offer a quality product that provide an excellent fit. I prefer the thicker model because it provides more protection to the teeth, but you can go with a thinner model if you don’t want to have a bulky mouthguard.

Click Here to Buy Impact Custom Mouthguards

Factors to Consider

Fit and Comfort

custom vs boilThe most important factor that you should consider when selecting a mouth guard is the fit and comfort of the guard. If you are purchasing a guard that doesn’t fit you properly, it can actually cause issues when you get hit. If you are using a boil and bite mouthguard you need to ensure that you spend the time required to mold it to your mouth.

A well fit mouthguard will mold to your teeth so that when you open your mouth it will stay in place. In combat sports it is very important that your mouthguard is a tight fit so that when you take a strike to the face it doesn’t fall out.


Another factor that you should look at is the size of the mouthguard. I personally like to have a little bulkier mouthguard because I find that it gives better shock absorption. The side effect of having a larger mouthguard is that it is not as comfortable and sticks out a little bit when you close your mouth.

Depending on the mouthguard, your breathing may also be affected if you get a mouthguard that is too obstructive. Make sure that the mouthguard has a design that you like and offers enough protection.

What Mouthguard do I use?

When I first started training Muay Thai I used boil and bite mouthguards. If you properly form the boil and bite mouthguard they can work and will protect you. After using the a few different boil and bite mouthguards I ended up switching to a custom mouthguard.

The fit on the custom mouthguard was better, which meant I had to use my hands to put the guard in and take it out of my teeth. If you can afford a custom mouthguard I recommend it, if you can’t the boil and bite still works fine.

Design and Style

The last factor that can be considered when you purchase a mouthguard is the design of the mouthguard. If you order a custom mouthguard you can often get your name or logo imprinted on the guard. Depending on what you like, you can get custom text, images, and colors on the front of the guard.

If you want to have a customized color or text you should expect to pay more money for the mouthguard. Since you will probably use your mouthguard for your life, this is something that you may want to consider.

Popular Mouthguard Brands

Since all boil and bite mouthguards are made from the same material, it really comes down to the best design and brand that you like. All of the top brands offer boil and bite mouthguards and most even offer a custom mouthguard option as well.

Shock Doctor

shock doctorI am pretty sure that everyone has owned a Shock Doctor at some point in time. This is by far the most common mouthguard that you will find in the market.

Shock Doctor specializes in mouthguards that range for every sport and activity that you can imagine. If you purchase a Shock Doctor mouthguard you should make sure that you choose a model that is appropriate for more impact. They have a few mouthguards that are designed for MMA/boxing.

Shock doctor was my first boil and bite mouthguard that I ever purchased and they did a good job of protecting my teeth/jaw. If you can mold the mouthguard correctly to your mouth, it will provide a good level of protection for a low price.

Click here to See Shockdoctor Mouthguards on Amazon


venum mouthguardAnother brand that produces quality mouthguards is Venum. Venum has a full line of Muay Thai products and is a popular brand that many people choose.

While Venum is big among MMA gear, they also offer a quality boil and bite mouthguard that come in a number of different designs.

If you don’t mind the MMA look, these guards are reasonably priced and can provide you with quality that can work for you.

Click here to See Venum Mouthguards on Amazon

Final Thoughts

A mouthguard is the most important protective piece of equipment that you will use in training. I don’t ever spar or clinch unless I have my mouthguard. I have seen so many people lose their teeth in training that I am very conscious about always wearing protection.

The only time I chipped a tooth was when my trainer threw a punch at my while he was holding pads. The uppercut ended up catching me on the chin, which caused my teeth to clash together. This is a danger that you will encounter if you are going with a trainer who is striking you during pad rounds.

Recommended: Impact Custom Mouthguard

impact-guardsAs I mentioned before, if you can spend the money get a custom mouthguard. The fit is better than regular guards and they will stay in your mouth even when you talk.

Impact offers a good custom Mouthguard for under $90. If you visit your dentist and ask for a custom guard they will probably charge upwards of 2-3x times that amount.

I don’t think you should put a price on protecting your teeth. Especially when a trip to the dentist can cost you thousands of dollars.

Click Here to Check out the Latest Prices on Amazon

When it comes to protecting your teeth it is better to be safe than sorry. I would rather wear a mouthguard when it isn’t necessary, then forget to have one on when it counts. Even when you are sparring lightly, put the mouthguard in for ‘just in case’ scenarios.

Most people don’t realize how easy it is to lose their teeth, until it is too late. It is better to spend the time to put you guard in your mouth so you don’t ever run into problems in the future.

Read more of our Ultimate Guides Below: