$15 boil-and-bite, $99–$169 direct-to-consumer custom, $250–$600 dentist-made. The question is whether the price gap maps to a protection gap, and whether the protection gap matters for what you actually do on the mat or in the ring. Here is the math.
The short answer
For anyone training a contact or combat sport more than once a week, custom-fit is worth it on protection alone. The per-year cost is similar to boil-and-bite once you account for replacement frequency, and the protection per dollar is decisively better. For occasional pickup play, a quality boil-and-bite is fine. For the dentist-made option, the fit is equivalent to a direct-to-consumer custom — you are paying for two appointments and clinic overhead, not better protection.
The three real options
- Boil-and-bite ($15–$30): generic plastic shell softened in hot water and pressed against your teeth. Captures a rough outline of your bite. Lifespan 1–2 months under regular use.
- Direct-to-consumer custom ($99–$169): at-home dental impression sent to a lab that pressure-laminates a multi-layer EVA guard from your impression. GumGear pricing: Contact Guard $99, Combat Guard $169.
- Dentist-made custom ($250–$600): in-office impression, lab-fabricated guard, in-office fitting. Same impression-based fit as direct-to-consumer; the price reflects chair time and clinic overhead.
The protection difference is between boil-and-bite and either of the two custom options — not between direct-to-consumer custom and dentist-made. Both customs use the same methodology.
Per-year cost compared
Assume you train consistently. Realistic replacement intervals from how long does a mouthguard last:
- Boil-and-bite: $15 × 6 replacements per year = ~$90/year. Six because boil-and-bite shells lose retention and need replacement every 1–2 months under combat-sport training load.
- GumGear Contact Guard: $99 × 1 = $99/year for contact sports. Combat athletes: $169 × 1–2 = $169–$338/year.
- Dentist-made: $300 (low estimate) × 1 = $300/year for contact, more if you replace twice. Both appointments and guard are paid every replacement.
For most contact-sport athletes, direct-to-consumer custom is within $10–20/year of boil-and-bite. For combat sport, custom runs 2–3× boil-and-bite per year — but the protection difference is also categorical, not incremental.
Protection per dollar
Money saved on protection is money spent on dental work. The US cost of a single chipped front incisor repair is $800–$3,000 depending on the procedure (composite bonding, porcelain veneer, crown). A root canal on a fractured molar runs $1,000–$2,000. A single dental-work event from a poorly fitted guard pays for every custom mouthguard you will ever own.
Hidden costs of cheap guards
- Replacement cadence. Every 1–2 months for boil-and-bite under combat-sport load. Time and admin cost too, not just dollars.
- Air and speech penalty. Cardio capacity in round three matters. A boil-and-bite that obstructs breathing costs you points and stamina.
- Reduced confidence in exchanges. Fighters with a loose guard pull punches and avoid clinches. A guard you trust changes how you train.
- Sanctioned-bout inspection. Custom guards pass inspection everywhere. Some commissions reject heavily customised boil-and-bites.
When custom is not worth it
- Casual pickup play. One basketball game a month with friends does not need a custom guard.
- Kids still growing. A 12-year-old's teeth will move before a custom guard is fully worn out. Quality boil-and-bites are appropriate until growth slows.
- Trying a sport for the first time. If you have not committed to whether you are going to train regularly, a $20 boil-and-bite is fine for the first month or two. Upgrade when you commit.
The verdict by training level
- 0–1 sessions/week: boil-and-bite is appropriate.
- 2–3 sessions/week, contact sport: GumGear Contact Guard ($99).
- 2–3 sessions/week, combat sport: GumGear Combat Guard ($169).
- 4+ sessions/week, competing: Combat Guard, two on rotation, planned replacements every 3–6 months. Cost still beats dentist-made by 50%+ over a fight year.
- Existing dental work, any frequency: custom. The repair costs you avoid are too high to gamble.
For the broader buying decision and what makes a custom mouthguard different in the first place, start with the complete custom mouthguard guide.


