About Sportsguard Laboratories

As a dentist, Dr. Dan Brett, DDS, saw first hand the injuries athletes sustained by not wearing mouthguards and the expensive costs associated with oral-facial correction. Being a sports enthusiast, Dr. Brett was then driven to develop a professional custom-made athletic mouthguard that offered protection without compromising comfort and affordability. He now holds a patent in mouthguard designs.

Sportsguard Laboratories, Inc., founded by Dr. Brett in 1996, has become the industry's leader in innovative technology used for custom athletic mouthguards. Dr. Brett is the co-developer of PolyShokTM, the material used in SLI's mouthguards. PolyShokTM is a high impact polymer that provides more shock absorption than any comparable mouthguard material in use today. SLI's mouthguards can be seen being worn by a number of professional athletes in all major sports.

To place an order, please browser our mouthguards on this site or email our sales staff. For all other inquiries please call 1-800-401-1776 or email customer service.


Our Guarantee

We guarantee that our mouthguards will be free from defect and fit properly. If you have a problem with your mouthguard, please contact us within TEN DAYS of receiving it and we will gladly replace it.

If you misplace your custom mouthguard, we will replace it at 10% off the original price within four months of purchase, provided you have your mold intact and a copy of the receipt.


Contact Information





(Hours: 9:00am – 4:30pm ET)



821 W. Main Street
Kent, Ohio 44240


Benefits of Wearing a Sportsguard Mouthguard:

• Custom fit allows the athlete to breathe, speak and drink with ease.

• Ultimate protection for teeth with superior comfort.

• Maximum retention and durability.



Sport Dentistry Facts

Dental injuries are the most common type of orofacial injury sustained during participation in sports. The majority of these injuries are preventable by wearing a Sportsguard Mouthguard.

Every athlete involved in a contact sport has about 10% chance per season of an orofacial injury. Every professional athlete has a 35-56% chance of sustaining such an injury during their athletic career.

More than 5 million teeth are knocked out each year during sport-related activities. This can help be prevented by wearing an athletic mouthguard.

An athlete is sixty times more likely to sustain damage to their teeth when not wearing a protective mouthguard.

The cost of a fractured tooth is many times greater than the cost of a dentist diagnosed and professionally designed mouthguard.

The cost to replant a tooth and the follow up dental treatment can be costly.


American Dental Association

The American Dental Association recommends wearing custom mouthguards for the following sports:

Acrobatics, Basketball, Boxing, Field Hockey, Football, Gymnastics, Handball, Ice Hockey, Lacrosse, Martial Arts, Racquetball, Roller Hockey, Rugby, Shot Putting, Skateboarding, Skiing, Skydiving, Soccer, Squash, Surfing, Volleyball, Water Polo, Weight Lifting, Wrestling