By Joanna M. | Director of Telehealth Clinical Operations | Fact-Checked for Clinical Accuracy
If you grind your teeth at night, you have probably seen SmartGuard on Amazon, Walmart, and Target for around $30 — right next to custom lab guards like NewSmile that cost $99. The price gap looks enormous, so the obvious question is whether the cheap option actually works. The honest answer is that they are not really the same product. SmartGuard and a custom NewSmile night guard solve different levels of the same problem, and picking the wrong one wastes money either way.
What SmartGuard Actually Is
SmartGuard is an over-the-counter (OTC) boil-and-bite night guard, not a custom dental appliance. You soften it in hot water and bite into it to mold it to your teeth. The most popular version, the SmartGuard Elite, is designed by Dr. James Spainhower and only covers your front six teeth, using roughly 43% less material than a full-tray guard. It is widely available for about $23–$30 and comes with a 3-year grind-through guarantee on the Elite model.
That front-teeth-only design is deliberate: it prevents your back teeth from touching, which can reduce clenching symptoms for some people. But it also means the guard is not shaped to your exact bite by a lab — it is shaped by how well you happen to mold it at the kitchen sink.
What a NewSmile Custom Night Guard Is
NewSmile ships you a home impression kit. You take dental impressions of your teeth at home, mail them back, and a dental lab fabricates a guard custom-fit to your exact dental arch from dental-grade thermoplastic. The price is $99, the guard covers your full arch (upper or lower, your choice), and the process is the same one used by dentist-sold guards that run $300–$800 — minus the office visits and markup.
You can order a custom NewSmile night guard online here, or pair it with a custom retainer if you also need post-treatment retention.
SmartGuard vs NewSmile: Side-by-Side
| Factor | SmartGuard | NewSmile |
|---|---|---|
| Type | OTC boil-and-bite | Custom lab-made |
| Price | ~$23–$30 | $99 |
| Coverage | Front 6 teeth only | Full arch (upper or lower) |
| Fit method | You mold it in hot water | Lab-built from your home impression |
| Material | EVA thermoplastic (boil-and-bite) | Dental-grade thermoplastic |
| Availability | Amazon, Walmart, Target | Online, ships from a US dental lab |
| Guarantee | 3-year grind-through (Elite) | Satisfaction guarantee |
| Best for | Light, occasional clenching on a tight budget | Real bruxism and nightly grinding |
When SmartGuard Makes Sense
SmartGuard is a legitimate budget option for a narrow group of people: light or occasional clenchers who want something today, do not want to mail in impressions, and mainly need to stop their back teeth from touching. At ~$30, the downside is small, and the front-teeth-only design can relieve mild clenching symptoms. If you travel a lot and lose guards, the low replacement cost is genuinely useful.
Just go in with realistic expectations. Boil-and-bite guards rarely fit precisely, they can feel bulky or shift at night, and because they are not made to your bite they do not distribute grinding forces evenly. Several SmartGuard reviewers note the guard felt loose, filled with saliva, or even melted during molding.
When NewSmile Is the Better Buy
If you actually grind nightly — worn enamel, jaw soreness, morning headaches, a partner who hears you grind — a boil-and-bite guard is a band-aid. You need a guard that fits your exact bite and spreads force across the full arch, which is exactly what a custom lab guard does. NewSmile delivers that for $99 instead of the $300–$800 a dentist charges for the same kind of appliance.
The trade-off is time: you take impressions and wait for lab production rather than getting a guard same-day from a store. For most chronic grinders, that one-week wait is well worth a guard that actually fits and lasts.
Not sure whether you need a guard or a retainer? Our retainer vs night guard guide breaks it down, and our custom night guard cost guide shows why $99 beats both the drugstore and the dentist.
Stop grinding through your enamel with a band-aid guard.
A custom NewSmile night guard is built to your exact bite from a home impression kit — full-arch bruxism protection for $99, no dentist visit required.
FAQ
Is SmartGuard a custom night guard?
No. SmartGuard is a boil-and-bite over-the-counter guard that you mold yourself in hot water. It is not made to your exact bite by a dental lab the way a NewSmile custom guard is.
Why is SmartGuard so much cheaper than NewSmile?
SmartGuard is a mass-produced EVA guard covering only your front six teeth, sold through big-box retailers. NewSmile is a custom lab appliance built from your personal dental impressions, which costs more to produce but fits precisely and protects your full arch.
Can a $30 SmartGuard protect against real bruxism?
For light, occasional clenching it can help. For nightly grinding that is wearing down your enamel or causing jaw pain, a custom-fitted guard like NewSmile is the appropriate solution because it distributes force across the full arch instead of loading the front teeth.
How does NewSmile make a custom guard without a dentist visit?
NewSmile mails you a home impression kit. You take your own impressions, send them back in a prepaid mailer, and a US dental lab fabricates your custom guard from dental-grade thermoplastic — the same process dentist-sold guards use, minus the office markup.
Should I buy SmartGuard or NewSmile?
If you grind lightly, want something today, and want to spend under $30, SmartGuard is a fair budget pick. If you grind nightly, want a guard that actually fits your bite, and want full-arch protection, NewSmile at $99 is the better long-term value.
