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Written by Joanne M., Director of Telehealth Clinical Operations | Fact-Checked for Clinical Accuracy
If you grind your teeth at night — a condition called bruxism — you've probably browsed the shelves at Boots or Superdrug staring at £15 boil-and-bite night guards wondering if they're good enough. Or maybe your dentist quoted you £300+ for a custom guard and you balked at the price.
You're right to question both options. Pharmacy guards have real limitations, and private dental prices are inflated by overhead that has nothing to do with the quality of the guard itself. The good news: there's a third option that delivers custom-fit quality at an affordable price point.
This guide compares custom night guards versus shop-bought options on fit, protection, comfort, durability, and cost — so you can make an informed decision that actually protects your teeth.
Bruxism is the medical term for grinding or clenching your teeth, usually during sleep. It affects an estimated 8–10% of adults in the UK, though many don't realise they do it until a dentist spots the damage or a partner hears the grinding at night.
The consequences of untreated bruxism are serious and expensive:
"A night guard is the cheapest dental insurance you'll ever buy. The alternative — repairing the damage from years of unprotected grinding — routinely costs £3,000–£10,000 in crowns and restorations."
A night guard creates a barrier between your upper and lower teeth, absorbing the force of grinding and preventing direct tooth-on-tooth contact. The question isn't whether you need one — it's which type actually works.
Not all night guards are created equal. Here's how the three main options compare:
These are the £10–£25 guards you find at pharmacies. You soften them in hot water and bite down to create a rough impression. They're better than nothing, but only just.
Your dentist takes impressions, sends them to a lab, and you return for a fitting. The guard itself is excellent — the price is the problem.
NewSmile custom night guards deliver the same lab-quality fit as a dentist-made guard, without the dental office markup.
"I went through four boil-and-bite guards in a year before trying a custom one. The difference is night and day — literally. I actually sleep better because I'm not fighting a bulky piece of plastic in my mouth."
The NewSmile process is designed to deliver dental-practice quality without the dental-practice experience:
The result is a night guard that fits as precisely as one from your dentist — because it's made using the same process and materials. The only difference is you skip the appointments and the markup.
Whether you buy from a dentist, online, or at a pharmacy, here's what matters:
If you're unsure whether a night guard is right for you, NewSmile's free smile assessment can help evaluate your situation.
Proper care makes the difference between a guard that lasts a year and one that lasts three:
Many grinders don't realise they're doing it. Watch for these signs:
If you recognise any of these signs, don't wait. The damage from grinding is cumulative — the sooner you protect your teeth, the less expensive the long-term consequences.
The NHS does provide occlusal splints (night guards) for bruxism, but availability varies significantly by region. If your dentist determines you need one, it typically falls under Band 3 treatment (£306.80 in England as of 2025/2026). However:
For many patients, ordering a custom guard online is faster, more convenient, and comparable in cost to the NHS pathway — especially when you factor in multiple appointments.
With proper care, a quality custom night guard lasts 1–5 years depending on grinding severity. Heavy grinders may need replacement sooner. Shop-bought guards typically last only 1–3 months.
A night guard doesn't stop grinding — it protects your teeth from the damage grinding causes. Think of it as a shield, not a cure. If stress is driving your bruxism, addressing the root cause through stress management or your GP is also worthwhile.
If you have active orthodontic treatment, wait until it's complete before getting a custom night guard. If you have crowns, bridges, or implants, a custom guard is actually more important — it protects your investment in dental work.
Most custom night guards are made for the upper teeth, which provides the most effective protection for the majority of grinders. Your dental professional will recommend the best option based on your specific bite.
A night guard is designed to protect teeth from grinding damage — it's thicker and built to absorb force. A retainer holds teeth in position after orthodontic treatment. Some people need both, worn on alternating nights or as recommended by their dental professional.
Rinse after every use, brush gently with cool water (no toothpaste), and deep clean weekly with the Petal Ultrasonic Cleaner. Never use hot water, and always store in a ventilated case.
Shop-bought night guards are a temporary fix at best. They're bulky, uncomfortable, and wear out quickly — which means most people stop wearing them before they've done any real good. Private dental guards are excellent but overpriced for what is fundamentally a simple product.
NewSmile custom night guards hit the sweet spot: precision fit from your exact dental impressions, medical-grade materials, professional oversight, and a price that makes sense. If you grind your teeth, protecting them shouldn't require a payment plan.
Order your custom night guard today, or browse all NewSmile products to find what you need.
