A patient guide from Dr. Bao Nguyen, DDS·Murrieta, CA·(951) 412-0127

Teeth Grinding & Clenching · Murrieta, CA

Custom Night Guards for Teeth Grinding in Murrieta, CA

Sore jaw in the morning, a molar that cracked on nothing, front teeth that look shorter than they used to: your teeth are absorbing a force every night that they were never built to take.

A custom night guard is the single most effective thing I can put between your teeth and the several hundred pounds of pressure a sleeping jaw can generate. It does not stop the grinding. Nothing reliably does. What it does is take the wear off the enamel, the load off the fillings and crowns, and the strain off the jaw muscles, so the damage stops accumulating while we deal with whatever is driving it. I make hybrid acrylic guards from a digital scan of your teeth, fit them by hand at the Date Street office, and quote the fee in writing before the scan is taken. Custom-fitted night guards purchased directly through my office run $505.

Dr. Bao Nguyen fitting a custom hybrid acrylic night guard for a teeth-grinding patient at Promenade Dental Care in Murrieta, CA
UCLA School of Dentistry10 years, U.S. Navy Dental CorpsWritten quote before any work

Start Here

How to Tell Whether You Grind Your Teeth at Night

Almost nobody knows they grind. Sleep bruxism happens in the lighter stages of sleep, it leaves no memory, and unless someone shares your bed and is a light sleeper, the first person to notice is usually a dentist looking at the wear on your molars. The Cleveland Clinic separates bruxism into two conditions, awake and asleep, and the distinction matters here because a night guard only addresses the second one. Daytime clenching, the kind you catch yourself doing in traffic or at a keyboard, needs awareness and habit work more than an appliance.

Here is what I look for at the exam, and what you can check in the mirror tonight. Two or three of these together usually means you are a grinder whether you have heard yourself or not.

Front teeth that look shorter or squared off. The translucent edges of your incisors are gone and the biting edges are flat. Enamel does not wear that way from chewing food.
Flat, shiny facets on your molars. The pointed cusps have been polished into small mirror-smooth planes. Those facets match up perfectly when you slide your teeth together, which is how I confirm the pattern.
A sore or tired jaw when you wake up. The masseter and temporalis muscles have been working for hours. Morning tightness that eases by lunch is close to diagnostic.
Dull headaches in the temples. The temporalis muscle attaches across the side of the skull. A headache that starts there, first thing in the morning, is a muscle complaint more often than a neurological one.
A scalloped tongue. Indentations along the sides of the tongue where it has been pressed against the teeth all night.
Cracked or chipped teeth with no clear cause. A molar that split on a piece of bread, a filling that keeps breaking, porcelain that chipped off a crown. Teeth do not fail like that under normal chewing loads.
Cold sensitivity with no cavity. Thinned enamel and micro-cracks expose dentin. If X-rays are clean and your teeth still zing, grinding is high on my list. More on that on the teeth sensitivity page.
Someone has heard you. Grinding is audible from across a room. If a partner or roommate has mentioned it, you can skip the rest of this list.
If jaw pain, clicking, or locking is your main complaint, the guard may still be part of the answer, but the diagnosis comes first. The TMJ evaluation page covers how I sort out whether the joint, the muscles, or the bite is the problem. This page is about protecting the teeth from grinding once we know that is what is happening.

Plain Mechanics

What a Custom Night Guard Actually Does

A night guard, also written as one word, nightguard, or called an occlusal guard or occlusal splint, is a removable appliance that covers the biting surfaces of one full arch of teeth, usually the upper. It is made of hard, clear acrylic shaped to your teeth, and it puts a smooth, even plane between the upper and lower arches while you sleep.

I want to be exact about what that accomplishes, because the marketing around these devices tends to overpromise.

It takes the wear. When you grind, acrylic wears instead of enamel. Enamel does not grow back; a guard can be remade. That is the whole reason the device exists.
It spreads the force. A properly adjusted guard gives every tooth an even contact, so a single molar or a single crown is no longer catching the full load. That is what protects fillings, crowns, veneers, and implant restorations from fracturing.
It lets the muscles rest. In most patients a hard guard reduces how hard the jaw muscles work at night, which is why morning soreness and temple headaches usually ease within a few weeks of consistent wear.
It does not cure bruxism. Grinding is driven by the central nervous system during sleep arousals. No appliance switches that off. A guard manages the damage; it does not remove the cause.

On the evidence: a 2023 systematic review in BMC Oral Health concluded that occlusal splint therapy is a viable treatment for sleep bruxism, and the American Dental Association's patient guidance on teeth grinding lists a custom guard as the standard protective measure. At the same time, a 2021 review in the Journal of Dentistry found the trials too small and too biased to prove that guards beat doing nothing at reducing the grinding itself. Both are true. The guard is very good at the one job I am asking it to do, which is to be the thing that wears down instead of your teeth. Anyone who tells you it will stop your grinding is selling past the evidence.

What it is
A custom hard acrylic appliance covering one full arch, worn during sleep.
What it protects
Enamel, fillings, crowns, veneers, bridges, and implant restorations from grinding and clenching forces.
What it does not do
Stop bruxism, straighten teeth, or treat sleep apnea. It is a shield, not a cure.
Turnaround
Scan at the first visit, delivery and adjustment about two weeks later, a short follow-up after that.

Why I Only Make One Kind

Hard Acrylic vs. Soft Guards vs. Drugstore and Mail-Order Guards

I make hybrid nightguard which is hard on the outside for longevity and softer inside for comfort. Patients ask about this because soft guards feel more comfortable in the hand, and some dentists offer them as a cheaper option. My reason is the muscle data. In a study published in the Journal of the American Dental Association, a hybrid splint reduced nighttime jaw muscle activity in eight of ten grinders, while a soft splint reduced it in one and actually increased it in five. A soft, rubbery surface gives the jaw something to chew on. Many patients clench harder against it, and the material wears through in months. Hybrid night guards gives the jaw a flat, even surface, can be balanced precisely, and lasts for years.

The store-bought and mail-order categories are a different problem. A boil-and-bite guard from the pharmacy is a thick, soft blank that you soften in hot water and bite into. It has no even contacts, it holds the jaw wherever it happens to land, and it is bulky enough that many people quietly stop wearing it after a week. Mail-order guards are better fitting because they are made from an impression you take at home, but they skip the two things that make a guard safe: an exam to confirm your teeth can carry one, and a chairside adjustment so the bite on the guard is even. A guard with a high spot loads one tooth all night. I have seen that crack a molar, which is the exact thing the guard was supposed to prevent.

Custom hybrid-acrylic night guard on a dental model at Promenade Dental Care in Murrieta, made for teeth grinding and clenching
A hybrid acrylic guard is made from a scan of your teeth and balanced so every tooth touches it evenly.
Three ways to get a night guard, compared.
FactorDrugstore boil-and-biteMail-order customCustom hybrid acrylic (my office)
FitRough approximation; bulkyGood, if your home impression was accurateMade from a digital scan; snaps into place
Bite balanceNoneNone; nobody checks your contactsAdjusted chairside with marking paper until every tooth touches evenly
Exam firstNoNoYes; decay, cracks, loose teeth, and gum disease are found before the guard is made
MaterialSoft thermoplasticSoft, dual-laminate, or hard, your choice without guidanceHard acrylic only
LifespanWeeks to a few monthsVaries with materialTypically three to five years, longer for light grinders
InsuranceNot coveredRarely coveredOften partially covered by PPO plans; verified before fabrication

One more design note. My guards are full-arch, meaning they cover every tooth in the arch. Small front-teeth-only appliances exist and are sometimes marketed for headaches, but a partial guard lets the back teeth drift and can change the bite over time, and I do not want to trade a wear problem for a bite problem.

Three Visits

How a Custom Night Guard Is Made and Fitted

1Exam and X-rays

The $20 new-patient exam with digital X-rays is the starting point. I confirm the wear pattern, check for cracks, active decay, loose teeth, and gum disease, and look at the jaw joints and muscles. A guard over an untreated cavity traps bacteria against it, and a guard on a loose tooth can lever it further, so anything urgent gets handled first. You leave with a written quote for the guard.

2Digital scan

A small intraoral scanner records your teeth and how they meet. No trays of impression material, no gagging. The scan goes to the lab that fabricates the guard in hybrid acrylic. The lab turnaround is about two weeks.

3Delivery and balancing

The guard should snap on and off without effort. I have you close and slide on marking paper, then grind the acrylic down wherever a tooth is hitting harder than its neighbors, until the contacts are even across the whole arch. This step is the difference between a guard that protects and a guard that concentrates force on one tooth.

4Follow-up and checkups

I see you again a few weeks in to re-check the contacts after the muscles have settled, and I look at the guard at every cleaning afterward. The wear pattern on the acrylic tells me how hard you are grinding and whether anything in the bite has shifted.

Getting used to it takes most people a week or two. Expect extra saliva and some awareness of it the first few nights. If you are still taking it out in your sleep after two weeks, or waking with new soreness, that is a fit or bite issue and it needs an adjustment, not more willpower. Call and I will see you.

Money, Plainly

Night Guard Cost and Insurance in Murrieta

Custom-fitted night guards purchased directly through my office cost $505. Where a given patient lands in that range depends on what the exam finds and what your plan covers, and you will see the exact number in writing before the scan is taken. If you have no dental insurance, the quote is a flat fee with nothing added later.

$20Exam and digital X-raysThe same new-patient exam everyone gets. It confirms the wear, rules out anything that has to be fixed first, and produces your written guard quote.
$505Custom hybrid acrylic night guardScan, lab fabrication, fitting, and bite balancing. Quoted in writing at the exam. CareCredit financing is available for qualified applicants.
Verified firstPPO insuranceMany plans cover part of a hybrid occlusal guard. We check your specific benefit and frequency limit before anything is made.

On insurance: a custom hybrid guard is billed under a dedicated dental code for a hybrid, full-arch occlusal guard, and most PPO plans that cover it do so at a percentage, often with a limit of one guard every few years. Plans generally require a documented grinding diagnosis, which the exam provides. Promenade Dental Care accepts all PPO plans and is in-network with Delta Dental PPO, Cigna, MetLife, Guardian, Aetna, and United Concordia. We verify coverage before fabrication so your out-of-pocket cost is known, not estimated.

The way to think about the fee is against what grinding costs when it is not stopped. A single crown on a cracked molar costs more than the guard that would have protected it. A root canal and a crown together cost several times more. I have patients whose guards are the cheapest piece of dental work they have ever had done and the one that saved them the most.

If the exam shows light wear, no symptoms, and no dental work at risk, I will tell you a guard is optional and let you decide. Not everyone with a few wear facets needs one.

Making It Last

Caring for Your Night Guard, and When to Replace It

Hybrid acrylic is durable but not indestructible, and most guards that fail early fail because of hot water or a dog. A few rules keep one working for years.

Rinse with cool water every morning. Then brush it gently with a soft toothbrush and a drop of mild dish soap or hand soap. Skip toothpaste; it is abrasive and will scratch and cloud the acrylic.
Never use hot water. Acrylic softens and warps in hot water, and a warped guard no longer fits and cannot be adjusted back. Boiling, dishwashers, and hot car dashboards all ruin guards.
Let it air dry, then case it. A closed wet case grows bacteria and smell. Dry it, then store it in a ventilated case out of reach of pets. Dogs find acrylic guards irresistible.
Deep clean weekly. A short soak in a denture cleaning tablet or a diluted white vinegar solution handles buildup. Rinse well afterward.
Bring it to every cleaning. I check the wear, the fit, and the contacts. Small adjustments at a checkup keep it balanced as your teeth and restorations change.
Do not try to reshape it yourself. If it feels tight, catches, or has a spot that hits first, that is a two-minute chairside adjustment. Filing it at home usually makes it worse.

When it is time for a new one

A hybrid acrylic guard typically lasts three to five years, longer for light grinders, less for heavy clenchers who wear through the biting surface. Replace it when the acrylic has worn through in any spot, when it cracks, when it no longer snaps into place, or after dental work that changes the shape of your teeth. A new crown, a filling on a biting surface, or an extraction will all change the fit, so tell me about the guard when we plan that work. Sometimes the guard can be relined; sometimes it is faster and cheaper to make a fresh one.

Honest Limits

When a Night Guard Is Not the Right Answer

I would rather tell you a guard will not help than sell you one that sits in a drawer. These are the situations where I slow down or point you somewhere else.

You clench during the day, not at night. Awake bruxism responds to awareness, posture, and stress habits, not an appliance. I can teach the lips-together, teeth-apart cue; a guard you wear at your desk is a bad plan.
You snore, gasp in your sleep, or are exhausted all day. Sleep bruxism shows up more often in people with obstructive sleep apnea. A 2025 systematic review found grinding consistently more common in apnea patients than in the general population. If your history points that way, I recommend a sleep study, because a standard guard does nothing for the airway and apnea is a medical problem before it is a dental one.
Your jaw clicks, catches, or locks. That is a joint question, and the joint gets evaluated before any appliance is designed. Start with a TMJ evaluation.
You have untreated decay, a cracked tooth, or gum disease. Those get fixed first. A guard over an active problem hides it and can make it worse.
Your child grinds. Grinding is common in kids and most outgrow it as the adult teeth come in. I rarely make guards for children under about twelve; the teeth are changing too fast. The pediatric dentistry page covers what I do watch for.
You have old, painless wear and no symptoms. Wear from years ago that has stopped progressing does not need a guard. I will show you the facets and let you decide.
A night guard protects your teeth from a habit you cannot control. It is worth every dollar for a real grinder, and worth nothing for someone who is not one. The exam tells us which you are.

Who Wrote This

About Dr. Bao Nguyen, DDS

Dr. Bao Nguyen, DDS, dentist in Murrieta, CA who makes custom night guards for teeth grinding
Dr. Bao Nguyen, DDS, owner of Promenade Dental Care.

I trained at the UCLA School of Dentistry and then spent ten years in the U.S. Navy Dental Corps, including an AEGD residency at Camp Pendleton. Sailors and Marines grind their teeth at a rate that would surprise you, and I fitted and adjusted more occlusal guards in those years than most dentists do in a career. The thing the Navy taught me about guards is that the adjustment is the appliance. An unbalanced guard is not a slightly worse guard; it is a different device with a different effect.

I have practiced in Murrieta since 2010, and the reason a guard from this office is worth more than a mail-order one is that I am also the person who will do the crown if a tooth cracks. I read wear facets, failing restorations, and bite interferences every day, because I repair them every day, and I would much rather protect the tooth than rebuild it.

What you get here is one answer, not a menu. If you need a guard, I will tell you so and quote it. If you do not, I will tell you that too.

More about Dr. Bao Nguyen

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Pages That Connect to This One

TMJ Evaluation

Jaw pain, clicking, headaches: finding out whether the joint, the muscles, or the bite is the problem.

TMJ treatment in Murrieta

$20 Exam & X-Rays

Where every night guard starts.

Dental exam & X-rays

Same-Day Crowns

When a grinding-cracked molar needs to be rebuilt in one visit.

Same-day crowns in Murrieta

Teeth Sensitivity

Why worn enamel zings with cold, and what to do about it.

Sensitive teeth treatment

Chipped Front Tooth

Smoothing, bonding, or a crown for an edge that broke.

Chipped front tooth options

Emergency Dentist

A tooth that split overnight does not wait for a scheduled visit.

Emergency dental care

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What Patients Say

Questions I Hear Every Week

Night Guard FAQs

How much does a custom night guard cost in Murrieta?

A custom-fitted hybrid acrylic night guard purchased directly through my office costs $505, quoted in writing at the $20 exam before the scan is taken. Many PPO plans cover part of the fee, which we verify before the guard is made, and CareCredit financing is available for qualified applicants.

Does insurance cover a night guard?

Often, in part. A custom hybrid guard has its own dental billing code, and many PPO plans pay a percentage of it, usually once every few years and usually with a documented grinding diagnosis. Promenade Dental Care accepts all PPO plans and verifies your specific benefit and frequency limit before fabrication, so you know your out-of-pocket cost in advance.

Will a night guard stop me from grinding my teeth?

No. Sleep bruxism is driven by the nervous system during sleep, and no appliance turns it off. A night guard makes the grinding harmless by putting a replaceable layer of acrylic between your teeth, spreading the force evenly, and giving the jaw muscles a smooth surface that most people clench against less hard. It protects your teeth; it does not cure the habit.

Is a hard or soft night guard better for grinding?

Hybrid, for almost every grinder. A soft guard gives the jaw a rubbery surface to chew on, and research has found soft splints can increase nighttime muscle activity in many patients while wearing through in months. A hybrid acrylic guard can be balanced precisely, usually reduces muscle activity, and lasts for years. That is why hybrid acrylic is the only kind I make.

Are drugstore or mail-order night guards any good?

A boil-and-bite drugstore guard is bulky, soft, and unbalanced, and most people stop wearing it within weeks. Mail-order guards fit better but skip the exam that rules out problems a guard would hide and the chairside adjustment that makes the bite even. A guard with one high spot loads a single tooth all night, and I have seen that crack the tooth it was meant to protect.

How long does a night guard last?

A custom hybrid acrylic guard typically lasts three to five years, longer for light grinders and less for heavy clenchers who wear through the surface. Replace it when the acrylic wears through, cracks, stops snapping into place, or after dental work that changes the shape of your teeth. I check it at every cleaning.

How do I clean a night guard?

Rinse it with cool water every morning, brush it gently with a soft toothbrush and mild soap, let it air dry, and store it in a ventilated case away from pets. Soak it weekly in a denture cleaning tablet or diluted white vinegar. Never use hot water or toothpaste: heat warps the acrylic and toothpaste scratches it.

Should the night guard go on the top or bottom teeth?

Usually the top. An upper full-arch guard is the standard design because it is stable, covers every tooth, and is easy to balance. I make a lower guard when a patient has a strong gag reflex, extensive dental work on the upper arch, or another reason the upper will not work well. Either way it is one guard, not two.

Do I need a TMJ evaluation before getting a night guard?

If your main complaint is worn or cracked teeth and morning jaw soreness, the standard $20 exam is enough to confirm grinding and quote the guard. If your jaw clicks, catches, locks, or hurts in front of the ear, the joint needs to be evaluated first, because the treatment has to match the cause. The TMJ evaluation page explains how that exam works.

Can a night guard help with headaches?

Often, when the headaches come from jaw muscle tension. Morning headaches in the temples are usually the temporalis muscle after a night of clenching, and most grinders report those ease within a few weeks of consistent wear. A guard will not help migraine, sinus, or tension headaches from other causes, which is one of the things the exam sorts out.

Can my child get a night guard for grinding?

Rarely. Grinding is common in children and most outgrow it as the adult teeth come in, and a guard made for a mouth that is changing month to month stops fitting quickly. I watch children's wear at their checkups and consider a guard only for older kids with heavy wear or symptoms.

Can a night guard make my grinding or jaw pain worse?

A poorly fitted one can. A guard with uneven contacts, a soft guard, or a bulky drugstore guard can increase clenching or load one tooth. A custom hybrid guard that is balanced at delivery and re-checked at follow-up should not. If you develop new soreness or find yourself removing the guard in your sleep, call for an adjustment rather than pushing through it.

Protect the Teeth You Have Before You Have to Rebuild Them

Start with a $20 exam and digital X-rays. If you grind, you will leave with a written quote for a custom hybrid acrylic night guard. If you do not, you will leave knowing that too.

(951) 412-0127 Request an Appointment Online

Promenade Dental Care · Dr. Bao Nguyen, DDS
26957 Date St., Suite B4, Murrieta, CA 92563
Serving Murrieta, Temecula, French Valley, Menifee, Wildomar & Winchester