Compare stock, boil-and-bite and custom-made mouthguards by how they are fitted. Stock models come ready-made in limited sizes, boil-and-bite models are molded according to their maker's instructions, and custom models are made from impressions by a dental office or lab.
Choose a football mouthguard by comparing how it is fitted and whether the exact model works with the player’s dental appliances. Stock models are ready-made, boil-and-bite models are shaped at home, and custom models are made from impressions through a dental office or lab.
Compare the three mouthguard types
The American Dental Association describes three common categories. They vary in adaptability, comfort, contact with the teeth and cost, so use the fit method that the player can follow correctly and keep in place comfortably.
- Stock or ready-made: Comes preformed in a limited range of sizes and is not shaped to an individual’s mouth. The ADA notes that stock models require the wearer to keep the mouth shut to hold the guard in place.
- Boil-and-bite: Softens when heated and is molded to the wearer according to the product instructions. The ADA advises following the manufacturer’s heating and molding directions.
- Custom-made: Fabricated from individual impressions in a dental office or laboratory. Ask a dental professional about the process and whether it suits the player’s needs.
Check fit and model instructions
The ADA’s mouthguard guidance describes a properly fitted guard as staying in place comfortably and securely. A buyer should check that the chosen model is comfortable, can be retained as intended, and matches the football program’s current equipment rules. The mouthguard rules by level guide covers those rulebook requirements.
For a boil-and-bite model, use only its own instructions. For example, Shock Doctor’s Gel Max Power fitting page gives product-specific heating and molding steps and says that this model is not compatible with braces. That statement applies to the named model, not every mouthguard. Players with braces or other oral appliances should check the exact maker guidance and ask a dental professional when needed.
Related football gear
See the football mouthguard rules by level, the flag football gear guide, and the 7v7 soft-shell headgear guide. Browse more protective gear.
Sources
- American Dental Association: Athletic mouth protectors (mouthguards) (accessed November 5, 2026)
- Shock Doctor: Gel Max Power mouthguard fitting instructions (accessed November 5, 2026)
Common questions
Which football mouthguard is easiest to fit?
A stock mouthguard is ready-made and needs no molding, while a boil-and-bite model is shaped at home by following its exact instructions. If you need an individual fit, ask a dental professional about a custom-made option.
How do I mold a boil-and-bite mouthguard?
Follow the instructions for the exact model. Heating time, cooling steps and shaping directions vary, so do not substitute another brand's instructions.
Can I wear a boil-and-bite mouthguard with braces?
Compatibility depends on the exact model. Shock Doctor's Gel Max Power instructions say that model is not compatible with braces; check the product instructions and ask a dental professional about orthodontic appliances.