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Clinician-reviewed dental guide

Custom vs Boil-and-Bite Mouthguards: A Brisbane Sports Guide

Comparing custom-fitted and store-bought mouthguards for sport. What works, what does not, and what Brisbane athletes should know.

6 min readReviewed Mar 2026

A mouthguard cannot prevent every dental injury, but a correctly fitted and consistently worn guard can reduce the risk or severity of some sporting trauma.

But not all mouthguards offer the same protection. The difference between a custom-fitted guard and a store-bought boil-and-bite is significant, and it affects both safety and whether the guard stays in your mouth during play.

What boil-and-bite mouthguards do

Boil-and-bite guards are available from pharmacies and sports stores for $10 to $40. You soften them in hot water, bite down, and the material moulds roughly to your teeth.

They are better than nothing. That is the most positive thing to say about them.

The limitations are practical:

  • Poor fit. The material is too thick in some areas and too thin in others. It does not adapt precisely to your dental arch, so it moves during impact rather than distributing force evenly.
  • Reduced breathing. Because the fit is bulky and imprecise, most wearers breathe through their mouth around the guard rather than through it. This affects performance, particularly in endurance sports.
  • Gagging. Boil-and-bite guards often extend too far back. The material at the rear triggers the gag reflex in many people, especially children and teenagers.
  • Speech. Try calling a play or communicating with teammates through a loose, oversized guard. It does not work well. Players who cannot communicate tend to take the guard out, which defeats the purpose.
  • Compliance. This is the biggest issue. A guard that is uncomfortable, makes you gag, or interferes with breathing will end up in a sports bag rather than in your mouth. An unworn mouthguard provides zero protection.

Custom-fitted mouthguards allow the clinician and laboratory to control fit, extension, retention, and material thickness more closely than a generic boil-and-bite product. Actual protection still depends on the design, fit, impact, and whether the guard is worn.

What custom-fitted mouthguards do differently

A custom mouthguard is fabricated from a precise impression or digital scan of your teeth. The material is pressure-laminated in layers, with thickness concentrated where impact is most likely.

The practical differences:

  • Precise fit. The guard locks onto your teeth without needing to clench. It stays in place during impact, which is the entire point.
  • Even thickness. Material is distributed based on the sport and the areas most vulnerable to contact. Front teeth get more coverage. The palate area is trimmed to reduce bulk.
  • Breathing and speech. Because the guard is thinner and contoured accurately, airflow is less restricted. You can talk, breathe, and drink water without removing it.
  • Comfort. A guard that fits properly is one you forget about during play. This is the single biggest factor in compliance.
  • Longevity. Higher-quality materials hold their shape longer than the thermoplastic used in boil-and-bite products.

Which sports require a mouthguard in Brisbane

Mouthguard rules vary by sport, age group, competition, and governing body. Check the current rules for your league; clinical guidance may recommend a mouthguard even where competition rules do not require one.

Common contact and collision sports:

  • Rugby league and rugby union (all age groups in most competitions)
  • AFL
  • Hockey (field and ice)
  • Boxing, martial arts, and combat sports

Other sports where dental impacts can occur:

  • Soccer (particularly for headers and aerial contests)
  • Basketball (more contact than people expect)
  • Cricket (batting and wicketkeeping)
  • Netball
  • Mountain biking and BMX
  • Skateboarding

If there is any chance of contact with another player, a ball, the ground, or equipment, a mouthguard is warranted. Dental injuries are not limited to collision sports. A stray elbow in a social basketball game can do as much damage as a rugby tackle.

The cost comparison that matters

A custom mouthguard at Ivy Dental starts from $100. Retail boil-and-bite prices vary by product and store.

Here is the comparison that matters more:

  • Replacing a single knocked-out tooth with a dental implant can cost from $4,500 to $7,000.
  • A dental crown for a fractured tooth starts from $1,600.
  • At Ivy Dental, an emergency examination for a sporting injury starts from $180, before any treatment.
  • Time off work or school, follow-up appointments, and potential long-term maintenance add further cost.

Price is only one consideration. Fit, retention, correct use, replacement when worn or outgrown, and the limits of protection all matter.

Some health funds provide rebates for custom mouthguards under general dental or preventive cover. Check your policy before your appointment. We process health fund claims on the spot with HICAPS at Everton Park and Nundah.

Mouthguards for children and teenagers

Children present a specific challenge. Their jaws are growing, teeth are erupting, and last year's guard may no longer fit this year's mouth.

For children, we recommend:

  • Review the fit before each season. Replace the guard when it no longer fits, is damaged, or no longer provides the intended coverage, including after meaningful dental or orthodontic changes.
  • Allow for growth and eruption. Mixed dentition does not automatically rule out a mouthguard, but the design and expected review interval depend on the child's development.
  • Include the child in practical choices. Colour and comfort preferences may support consistent wear, but fit and protection remain the clinical priorities.

If your child wears braces, we can fit a mouthguard that accommodates orthodontic brackets and wires. The design is different from a standard guard, and it is not something a boil-and-bite can replicate safely.

How the fitting process works

Getting a custom mouthguard fitted at Ivy Dental is straightforward.

Appointment one: We take a digital scan or impression of your upper teeth. You choose the colour and thickness level based on your sport. The scan is sent to our lab.

Fitting or review appointment: You try the finished guard. We check retention, coverage, comfort, and bite, then make any required adjustments.

Appointment count and laboratory turnaround vary. Ask the team for the current fitting timeline, particularly before a sporting deadline.

When to replace your mouthguard

Replace your guard if:

  • It no longer fits snugly without clenching
  • The edges are worn, torn, or rough
  • It has developed an odour that does not resolve with cleaning
  • You have had dental work (new crowns, fillings, extractions, or orthodontic changes) since it was made
  • It has been more than two to three seasons (adults) or one season (children)

Between uses, rinse the guard in cold water after each session, brush it gently with a toothbrush, and store it in a ventilated case. Do not leave it in a hot car. Heat warps the material and ruins the fit.

Book a mouthguard fitting at Ivy Dental before the season starts. Call (07) 3266 7120 or book online. We are open seven days at Everton Park and Nundah. Mouthguard fittings are part of our general dentistry services.

Common questions

A few points patients often ask about.

These answers are general information. Your dentist can explain what applies after an assessment.

How much does a custom mouthguard cost in Brisbane?

Custom-fitted sports mouthguards at Ivy Dental start from $100. Your quote depends on the design, sport, records, and any special requirements. Private-health-fund rebates vary by policy, so check your cover.

How long does a custom mouthguard last?

For adults, a well-maintained custom mouthguard typically lasts two to three seasons. For children and teenagers whose jaws are still growing, it may need replacing every season or when it no longer fits snugly.

Can I get a mouthguard fitted if I have braces?

Yes. We can fit mouthguards over orthodontic braces. These require a specific design to accommodate brackets and wires while still providing protection.

Your next step

Get advice for your own situation.

Book online, or call the team if you are unsure which appointment type you need.

Everton Park and Nundah are open 7 days. New patients are welcome.