A night guard is a removable oral appliance worn over your teeth to absorb and redirect the forces created by grinding or clenching. For many people dealing with bruxism, it is one of the most effective ways to protect their enamel and reduce jaw discomfort. Whether you need one depends on your symptoms, the severity of your grinding, and what a dentist finds during an exam.
A night guard is a custom or prefabricated tray, usually made of hard or soft acrylic, that fits over your upper or lower teeth. It creates a protective barrier so that when your jaw clenches during sleep, the force is distributed across the appliance rather than concentrated on individual teeth.
Night guards do not stop grinding itself. Instead, they prevent the wear, chipping, and jaw strain that grinding causes over time. Think of it as a buffer between two surfaces that would otherwise cause real damage if left in direct contact night after night.
Not everyone who grinds their teeth needs a night guard right away, but there are clear signs that one may be worth considering. Grinding often happens during sleep, so many people are unaware they do it until a partner mentions it or a dentist spots the evidence.
Common signs that you may benefit from a night guard include:
If you recognize several of these signs, it is worth scheduling an evaluation. At Littleton Family Dental, Dr. Anne Casson examines wear patterns on the teeth and evaluates jaw function to determine whether a night guard is appropriate for your situation.
Left unaddressed, chronic bruxism can lead to progressive enamel loss, increased tooth sensitivity, and cracked teeth that may eventually require more involved treatment. The jaw joint itself can also be affected, contributing to TMJ-related discomfort.
Enamel does not grow back. Once it wears away, the underlying dentin becomes exposed and teeth become more vulnerable to decay and sensitivity. Protecting what you have now is far easier than restoring damage after the fact. If grinding has already caused structural damage, you may want to learn more about dental crowns as a restorative option, or speak with Dr. Casson about TMJ treatment if jaw pain is a concern.
This is one of the most common questions patients ask, and the answer matters more than most people expect.
Pharmacy night guards, including boil-and-bite trays, are widely available and inexpensive. They offer some level of protection and may be a reasonable short-term option while you arrange a dental appointment. However, they fit loosely, can feel bulky, and may actually encourage more clenching in some people because the jaw has to work to hold an ill-fitting tray in place.
A custom night guard is made from impressions of your actual teeth. The result fits precisely, stays in place without effort, and can be designed with the right thickness and material for your specific grinding pattern. Dentists can adjust the bite surface so the guard does not shift your jaw into an uncomfortable position during sleep.
Custom appliances also tend to last considerably longer than store-bought alternatives. For moderate to severe grinders, the added durability and proper fit make a meaningful difference in both comfort and protection. You can learn more about what this process looks like at Littleton Family Dental’s mouth guards and night guards page.
Dental night guard cost varies depending on the type of guard, the materials used, and your dental insurance coverage. Store-bought options typically cost far less upfront, while custom guards made in a dental office involve a higher initial investment.
Many dental insurance plans cover a portion of a custom night guard when bruxism is documented, though coverage terms differ widely. Littleton Family Dental offers financial options to help make treatment accessible, so cost should not be a barrier to getting evaluated.
It is also worth considering the long-term math. Repairing cracked teeth, replacing worn enamel with restorations, or addressing TMJ issues later typically costs significantly more than a preventive appliance now.
Night guards address grinding and clenching, but they are not the only type of oral appliance a dentist might recommend. If you snore or have been evaluated for sleep-disordered breathing, a different appliance called a snore guard may be more appropriate, or your dentist may recommend both. You can read more in our guide on what a snore guard is or visit the snore guards page for details on that option.
Some patients in Littleton also ask about dental Botox as a complementary approach for jaw muscle tension. While it works differently from a night guard, it may be worth discussing with Dr. Casson if muscle soreness is a primary concern alongside grinding.
The process is straightforward. At your appointment, Dr. Casson will examine your teeth for signs of wear, evaluate your bite, and discuss your symptoms. If a night guard is appropriate, impressions or a digital scan of your teeth are taken and sent to a dental lab. When the guard is ready, you return for a fitting and any necessary adjustments.
Most patients find that it takes a short adjustment period to get used to sleeping with the appliance, but discomfort is uncommon with a properly fitted guard. If anything feels off after a few nights, your dentist can make modifications.
Many people discover they grind their teeth through a partner’s observation, or when a dentist notices wear patterns during a routine exam. Morning jaw soreness, frequent headaches, and increased tooth sensitivity are also common indicators. A dental evaluation is the most reliable way to confirm it.
Sports mouthguards and night guards serve different purposes and are not interchangeable. Sports guards are designed to absorb impact from external forces. Night guards are designed for the sustained, repetitive pressure of grinding, which requires different thickness, material, and bite alignment. Using a sports guard at night is unlikely to provide the protection your teeth and jaw actually need.
With proper care, a custom night guard can last several years, though this varies depending on how severely you grind and how well you maintain the appliance. Your dentist will monitor it at regular checkups and let you know when it needs to be replaced.
A night guard can reduce strain on the jaw joint by limiting the force created during grinding, which may ease some TMJ-related discomfort. However, TMJ disorders have multiple causes, and a night guard alone may not be a complete solution. Dr. Casson can assess your situation and discuss whether additional treatment is appropriate.
Coverage depends on your specific plan. Some insurance policies cover custom night guards under the restorative or preventive benefit when bruxism is documented. It is worth calling your insurer before your appointment, and the team at Littleton Family Dental can also help you understand your options.