Basketball players wear mouthguards to protect their teeth, lips, and jaw from impacts that are surprisingly common on the court. Among contact and team sports, basketball carries one of the highest risks of orofacial injury, with a prevalence around 34% in general studies and as high as 63% in some surveyed player populations. Elbows under the rim, collisions on fast breaks, and stray hands during rebounds make the mouth one of the most vulnerable areas on the court.
Dental and Tooth Protection
The most straightforward reason for wearing a mouthguard is preventing chipped, cracked, or knocked-out teeth. A direct hit to the face, whether from another player’s elbow or shoulder, transfers force straight into the front teeth. A mouthguard absorbs and distributes that impact across a wider area instead of concentrating it on one or two teeth. This is especially important in basketball because players don’t wear helmets or face shields, leaving the lower half of the face completely exposed.
Players with braces or other orthodontic hardware face additional risk. Metal brackets can slice into the inner cheeks and lips during a hit, turning a minor contact into a painful laceration. A mouthguard covers the brackets and creates a smooth barrier between the hardware and soft tissue.
Soft Tissue and Lip Protection
Teeth aren’t the only thing at stake. A mouthguard acts as a buffer that holds the lips, cheeks, and tongue away from the teeth during impact. Without one, a blow to the face can drive the inner lip into the edge of the teeth, causing deep cuts that bleed heavily and often need stitches. The tongue is vulnerable too: a hard hit can cause a player to bite down involuntarily, and a mouthguard reduces the severity of that bite by keeping the jaw slightly separated.
Jaw Joint Protection
A less obvious benefit involves the jaw joint, the hinge just in front of each ear that opens and closes the mouth. An upward blow to the chin, like a jumping player’s head hitting another player’s shoulder, can jam this joint and damage the cartilage, ligaments, and tissue inside it.
A mouthguard helps by slightly increasing the space between the upper and lower teeth. This shifts the lower jaw downward just enough to reduce the load on the joint during impact. Think of it like a small shock absorber: the resilient material cushions the force and spreads it across surrounding bone structure rather than concentrating it on the joint itself. Custom-fitted mouthguards are particularly effective here because they maintain a precise gap between the teeth that maximizes this protective effect.
What About Concussions?
You may have heard that mouthguards help prevent concussions. The current evidence doesn’t support this. While mouthguards do reduce how much the head accelerates on impact, that reduction alone doesn’t translate into meaningful concussion prevention. The data remains inconsistent and unclear on any direct link between mouthguard use and lower concussion rates.
This matters for basketball specifically because concussion risk in the sport is real. Basketball ranks among the highest-risk sports for concussions in women’s athletics. But a mouthguard should be viewed as protection for the mouth and jaw, not the brain. Separate protective strategies, like learning to fall safely and enforcing rules against dangerous contact, address concussion risk more directly.
Types of Mouthguards Players Use
There are three basic categories, and the differences in protection and comfort are significant.
- Stock mouthguards come in a fixed shape and size. They’re the cheapest option but fit poorly, which makes breathing and talking harder. Most serious players avoid them.
- Boil-and-bite mouthguards are heated in water and then molded to the teeth by biting down. They offer a better fit than stock versions and cost between $10 and $30. This is what most recreational and youth players use.
- Custom-made mouthguards are fabricated from a dental impression of the player’s teeth. They provide the best fit, the highest level of protection (especially for the jaw joint), and the least interference with breathing and speech. The tradeoff is cost, typically $100 to $500 through a dentist.
Research comparing these types found that most mouthguards don’t significantly interfere with normal mouth functions like breathing, speaking, or swallowing. The exception was certain poorly designed stock models that caused issues with gagging and mucosal irritation. In general, the better the fit, the fewer complaints players have.
Do Mouthguards Affect Performance?
One reason some basketball players resist wearing mouthguards is the worry that they’ll struggle to breathe during sprints or communicate with teammates. Studies testing custom mouthguards during high-intensity exercise found no measurable differences in oxygen uptake, ventilation, or heart rate compared to wearing nothing at all. Players performed at 84% to 93% of their maximum aerobic capacity with and without mouthguards, and the numbers were essentially identical.
Speech is a slightly different story. While research shows no statistically significant difference in players’ ability to speak with a well-fitted mouthguard, there is a tendency for players to prefer designs with less material covering the roof of the mouth. In basketball, where calling out screens, switches, and plays is constant, a thinner, well-fitted mouthguard makes communication feel more natural. This is one reason custom designs are popular among professional players: they can be trimmed to cover only what’s necessary while still providing full protection to the teeth and jaw.
Why the NBA Doesn’t Require Them
Unlike football or hockey, the NBA does not mandate mouthguard use. This makes the decision a personal one, and adoption varies widely. Players who have already suffered a dental injury tend to become lifelong mouthguard wearers. Others, particularly guards who prioritize vocal communication, skip them entirely.
Youth and high school leagues are more likely to require mouthguards, and dental organizations universally recommend them for basketball at every level. Given that the sport’s orofacial injury rate rivals or exceeds many sports where mouthguards are mandatory, the case for wearing one is strong regardless of whether rules demand it. A single knocked-out permanent tooth costs far more to repair than even the most expensive custom mouthguard.