Clinically reviewed dental education
Medically Reviewed by Dr. Greg Grillo, DDS
This comprehensive guide has been independently reviewed by a dentist with more than 30 years of clinical experience to help ensure the information is accurate, current, and aligned with accepted dental practices.
Read Dr. Grillo’s complete professional evaluations
In addition to reviewing this guide, Dr. Grillo independently evaluated four Sentinel custom oral appliances, assessing their materials, fit, intended use, strengths, limitations, and the patients each design may be best suited for.
Waking up with sore teeth, jaw discomfort, or unexplained morning headaches may be a sign that you are grinding or clenching your teeth while you sleep.
This condition, known as bruxism, can place substantial pressure on the teeth, restorations, jaw muscles, and surrounding structures. A professionally made custom night guard creates a protective barrier between the upper and lower teeth, helping reduce the damage caused by repeated grinding and clenching.
Unlike many over-the-counter boil-and-bite guards, a custom night guard is created from an impression or digital scan of your teeth. This allows the appliance to follow your individual dental anatomy, providing a more precise, secure, and comfortable fit.
Custom night guards are commonly considered for people experiencing nighttime grinding, persistent clenching, tooth wear, or certain forms of jaw discomfort. Without appropriate management, these habits may contribute to worn enamel, fractured teeth, damaged restorations, gum irritation, and changes in the way the teeth come together.
At Sentinel Mouthguards, we manufacture custom dental night guards in our FDA-registered U.S. laboratory. Every appliance is individually fabricated using professional dental materials and carefully inspected by experienced technicians before leaving our lab.
What this guide covers
We will explain how custom night guards work, the different materials and designs available, how long they typically last, what they may cost, and how to choose an option based on your needs. Whether you are considering an appliance from your dentist or ordering directly from a professional dental laboratory, this guide is designed to help you make a more informed decision.
Understanding the appliance
What Is a Custom Night Guard?
A professionally fabricated oral appliance designed around the individual shape and alignment of your teeth.
A custom night guard is a removable dental appliance made specifically for your teeth using a physical impression or compatible digital scan. Unlike over-the-counter boil-and-bite guards , which are softened in hot water and shaped at home, a custom appliance is fabricated in a professional dental laboratory using a model of your individual dental anatomy.
This customized process allows the guard to closely follow the contours of the teeth. The goal is a more secure, comfortable fit and consistent coverage across the areas exposed to grinding and clenching forces.
Custom night guards are manufactured in several materials and thicknesses. The most appropriate design depends on factors such as the severity of the grinding or clenching, desired comfort, durability needs, dental restorations, and whether the appliance will be worn during sleep or during the day.
A dentist can provide a custom night guard as part of an in-office examination and treatment process. For people who have already been evaluated and know they need a protective appliance, a professional online dental laboratory can offer another route to obtaining a custom-fitted guard.
Why the fit matters
A properly fitted custom guard is generally less bulky than a stock appliance, remains more securely positioned, and distributes contact more consistently across the appliance. A night guard protects against the effects of grinding and clenching, but it does not necessarily stop the underlying habit itself.
Compare your options
Custom Night Guards vs. Other Mouth Guards
Understand how professionally fabricated guards differ from generic, stock, and boil-and-bite alternatives.
Related guide
How Does a Dental Night Guard Work?
Learn how an appliance creates a protective barrier and helps reduce damage from repeated tooth-on-tooth contact.
Cost comparison
Dentist Night Guards vs. Direct Laboratory Ordering
Explore the services, convenience, pricing, and clinical differences between obtaining a guard through a dentist and ordering from a professional laboratory.
Independent professional review
Dr. Greg Grillo’s Complete Guard Evaluations
See Dr. Grillo’s assessments of the Comfort, Hybrid, No-Show Day, and Durability Guards, including fit, materials, intended use, strengths, and limitations.
Two ways to obtain a custom appliance
Dentist Night Guard vs. Online Dental Laboratory
Both routes can provide a custom-fitted night guard, but the services surrounding the appliance are different. A dentist provides an examination, diagnosis, treatment recommendations, impression services, and clinical follow-up. A direct laboratory is generally best suited to people who have already been evaluated and know they need a protective night guard.
Clinical route
Dentist-Provided Night Guard
Includes professional examination, clinical oversight, office services, and laboratory fabrication.
Direct-laboratory route
Sentinel Online Laboratory
Provides custom laboratory fabrication using an at-home impression or compatible digital dental scan.
| Typical cost | $400–$800 Pricing may include the exam, office overhead, clinical services, impression taking, laboratory charges, and follow-up. | $165–$235 Pricing is primarily for the customized appliance and direct laboratory services. |
|---|---|---|
| Process | Examination and impression or scan completed through the dental office, followed by laboratory fabrication. | Complete an at-home impression kit or submit an eligible digital scan for direct laboratory fabrication. |
| Materials | Material depends on the dentist’s prescription and the laboratory used by the practice. | Professional dental materials selected according to the Sentinel guard design ordered. |
| Fit | Custom-fitted from an impression or digital scan of the patient’s teeth. | Custom-fitted from an accepted at-home impression or compatible digital scan. |
| Clinical evaluation | Included. The dentist can examine the teeth, bite, jaw joints, restorations, and related symptoms. | Not included. Customers should seek dental evaluation when diagnosis, treatment planning, or examination is needed. |
| Convenience | Requires one or more appointments at the dental office. | The impression or digital-file process can be completed from home. |
| Fabrication time | Varies by dental office, laboratory, appointment scheduling, and appliance type. | Standard laboratory fabrication is generally completed within several business days after an acceptable impression or digital file is received. |
| Follow-up support | Clinical adjustments and follow-up are performed through the dental practice. | Fit support, eligible adjustments, remakes, and impression assistance are provided remotely under Sentinel’s policies. |
Why dentist-provided guards often cost more
Many dental practices work with an internal or outside dental laboratory to fabricate appliances. The dentist’s price reflects more than the physical guard: it may also include examination, diagnosis, staff time, office expenses, impression or scanning services, professional oversight, adjustments, and follow-up care.
Pricing and turnaround times vary by provider, guard type, treatment needs, location, shipping, and grinding severity. A direct laboratory does not replace a dental examination or individualized treatment plan.
Already know you need a custom night guard?
Explore Sentinel’s custom-fitted options or begin with the Comfort Guard for light-to-moderate grinding and clenching.
The direct-laboratory process
How to Get a Custom Night Guard Online
Sentinel’s process is designed to make professional laboratory fabrication accessible from home. Your guard is made from an accepted dental impression or compatible digital scan—not from a generic size or self-trimmed mouthpiece.
Choose Your Guard
Select the material, design, arch, and thickness that best matches your grinding or clenching needs.
Unsure which design to choose? Review the educational guidance in this guide or speak with your dentist.
Take Your Impression
Your kit includes impression material, trays, instructions, and the supplies needed to capture your teeth.
Seat the tray evenly and submerge the visible tooth surfaces so the laboratory can evaluate the full dental anatomy.
View the impression tutorial →Return It to the Lab
Send the completed impression to Sentinel using the provided return instructions.
The laboratory reviews it for usable depth, detail, coverage, and distortion before manufacturing begins.
Avoid common impression mistakes →Receive Your Guard
Your appliance is individually formed, trimmed, finished, inspected, and shipped with its storage case and care guidance.
Fit assistance and eligible remake or adjustment options are available under Sentinel’s satisfaction policy.
Already have a digital dental scan?
Eligible STL or PLY files may be submitted instead of completing a physical impression kit. This allows the laboratory to begin fabrication from the digital model after the file is reviewed and accepted.
Ready to begin the custom-fit process?
Compare Sentinel’s available night guards and select the design that best fits your comfort and durability priorities.
Common questions
Frequently Asked Questions About Night Guards
These answers address some of the most common concerns people have before ordering or wearing a custom-fitted appliance.
Can a night guard shift your teeth?
Any appliance that fits incorrectly, applies uneven pressure, or is worn after the teeth have changed can potentially affect comfort or tooth position. A properly fitted custom guard should remain secure without creating painful or excessive pressure.
Stop wearing the appliance and seek professional guidance if you notice persistent pain, a meaningful bite change, looseness, or pressure that does not improve.
Read more about pain, pressure, and fitDo night guards stop teeth grinding?
A night guard does not necessarily stop the neurological or behavioral activity that causes bruxism. Its primary purpose is to create a protective barrier that reduces direct tooth-on-tooth contact and helps limit wear or damage.
Learn what a night guard can and cannot doShould I wear my night guard every night?
Follow the schedule recommended by your dentist or appliance provider. For people who grind or clench regularly during sleep, consistent use provides more reliable protection than occasional use.
See five ways to build a consistent routineHow should a properly fitted night guard feel?
It should feel secure and remain seated without being painful, excessively tight, loose, or easy to dislodge with the tongue. Some initial awareness is normal, but ongoing tooth pain, gum irritation, or bite changes should be addressed.
Read the complete night guard fit guideCan I use a sports mouth guard for nighttime grinding?
Sports mouth guards are designed primarily to absorb sudden impact during athletic activity. They are generally bulkier and are not engineered for the repeated, sustained forces associated with nighttime bruxism.
Compare sports guards and night guardsHow should I clean and care for my night guard?
Rinse the appliance after use, clean it with a soft brush and suitable nonabrasive cleanser, allow it to dry, and store it in a ventilated case. Avoid hot water because heat can distort many thermoplastic dental materials.
Read the complete cleaning and care guideInside the laboratory
How Is a Custom Night Guard Actually Made?
Fabricating a custom night guard involves considerably more than heating and shaping a piece of plastic. Each appliance begins with an individual dental model and moves through material preparation, forming, trimming, edge finishing, polishing, inspection, and final packaging.
We documented the complete process so you can see what happens after your impression or digital scan reaches the laboratory.
Still have questions about fit, materials, or the process?
Our team can help explain Sentinel’s products, ordering process, and laboratory policies. Medical concerns and diagnostic questions should be discussed with your dentist.
Protect your dental investment
Protect Your Smile with a Custom-Fitted Night Guard
Repeated grinding and clenching can wear enamel, place stress on restorations, and contribute to tooth and jaw discomfort. A properly fitted night guard creates a protective barrier between the teeth and helps reduce the damage associated with those forces.
Since 2012, Sentinel Mouthguards has fabricated custom oral appliances in its U.S. dental laboratory using individual impressions and digital dental models. Each appliance is manufactured according to the selected design and inspected before shipment.
About the medical reviewer
Greg Grillo, DDS
Dr. Greg Grillo is a dentist, clinical educator, and President of Method Pro with more than 30 years of experience in clinical care, patient communication, and practice leadership. A former U.S. Navy Dental Officer, Dr. Grillo brings a practical clinical perspective to dental and oral-health education. His review helps ensure that this article is understandable, clinically responsible, and grounded in real-world dental experience.