Last updated: September 30, 2026
Night guards from a dentist are custom-fitted appliances worn during sleep after a dentist evaluates teeth grinding or jaw clenching. They place a protective layer between the teeth, helping limit wear while giving your dentist a chance to assess what may be causing your symptoms.
What are night guards from a dentist, and how do they protect teeth?
Night guards from a dentist are removable appliances fitted to your teeth after an examination of your mouth and bite. Worn during sleep, a night guard creates a barrier between the upper and lower teeth. The barrier helps protect enamel and dental work from grinding forces, but a guard does not necessarily stop grinding.
Good Tooth Dental Care offers custom-made night guards in Bellevue, Washington. Depending on the design selected, a guard may be made from acrylic or a softer plastic. Its fit matters: an appliance should stay in place comfortably and allow your dentist to check how your teeth meet against it.
Are night guards, occlusal guards, and bite splints the same thing?
These terms often describe related appliances worn over the teeth, although designs and clinical purposes can differ. “Night guard” describes when the appliance is worn; “occlusal guard” refers to the biting surfaces; and “bite splint” is another term you may hear during an examination. Your dentist can explain the particular design being recommended rather than relying on the name alone.
Who might benefit from a custom night guard?
Adults with signs of tooth wear, chipped teeth, or morning jaw discomfort may benefit from an evaluation for a custom night guard. A guard may also help protect existing crowns, bridges, or other restorations from grinding forces. Symptoms alone cannot confirm sleep bruxism, so a dentist should examine the teeth and consider other explanations.
A dentist can look for patterns of wear and ask about when discomfort occurs. In clinical practice, that combination is more useful than treating a morning headache or sore jaw as proof of nighttime grinding. Some people who clench during sleep notice little discomfort, while similar symptoms can arise for other reasons.
What signs of nighttime grinding or clenching should you discuss with a dentist?
Bring up new chips, cracked teeth, flattened biting surfaces, sensitive teeth, or a partner’s observation of grinding sounds. Mention headaches on waking, jaw fatigue, and any difficulty or discomfort when opening your mouth. These details help guide an examination; they do not establish a diagnosis on their own.
Jaw-joint concerns deserve particular attention because the most useful approach may involve more than protecting teeth. If jaw symptoms are your main concern, our guide to TMJ treatment options for jaw pain offers additional context. Patients from Mercer Island can discuss both tooth protection and jaw symptoms with our Bellevue team.
What happens when you get a custom night guard from a dentist?
Getting a custom night guard generally starts with an examination of your teeth, restorations, jaw, and bite. If a guard is appropriate, the dentist records the shape of your teeth with an impression or a digital scan where available. The finished appliance is checked for fit before you receive instructions for wearing and caring for it.
The usual sequence helps your dentist choose an appliance for your mouth rather than asking you to shape a ready-made tray yourself:
- Assessment: The dentist reviews your symptoms and checks for wear, dental concerns, and jaw discomfort that may affect the recommendation.
- Tooth record: An impression or, where available, a scan captures the contours needed to make the appliance.
- Fabrication: The record is used to make a guard designed to fit your teeth and the selected material.
- Fit check: The dentist checks how the guard seats and how your teeth contact it, then explains cleaning, storage, and when to return for an adjustment.
How does a dentist assess your bite and make a custom-fit guard?
The bite assessment helps identify where the teeth meet and whether the proposed guard needs adjustment for comfortable contact. The exact recording method and visit schedule can vary; a digital scan should not be assumed to be available at every appointment. Compared with a store-bought night guard, a dentist-made appliance includes a clinical assessment and a fit check – useful distinctions when you have restorations or jaw symptoms.
What does the research say about night guards for sleep bruxism?
A 2024 systematic review of occlusal splints for sleep bruxism supports splints as a management option, while showing that designs can perform differently. Material choice still requires an individual clinical assessment.
The review compared findings across studies rather than testing every appliance in the same patients. Its authors reported that adjustable splints, including full-occlusion biofeedback designs, showed promise in reducing grinding episodes and improving patient-reported symptoms in the studies reviewed. Those findings should not be assumed to apply to an ordinary protective night guard.
What did the review report about occlusal splints?
The systematic review discussed hard acrylic stabilization splints as a commonly recommended choice for moderate to severe sleep bruxism, while also examining soft and dual-laminate designs. It noted that effects on jaw-muscle activity vary and that possible adverse effects should be considered for each person. A recommendation for a particular material is therefore not a promise of relief.
Our guide to bruxism treatments beyond night guards explains why a broader discussion may be helpful when symptoms persist.
Risks, Side Effects and Who Is Not a Candidate
A night guard can cause discomfort, excess saliva, or a change in how the bite feels, particularly when the appliance is new or does not fit well. Some designs may aggravate jaw symptoms or affect tooth contact with continued use. A guard is not appropriate as a substitute for evaluating unexplained pain, changing bite symptoms, or a possible sleep-related breathing concern.
The Bruxism Management clinical reference describes splints as a way to protect teeth while emphasizing assessment of the person’s broader symptoms. The systematic review likewise notes that potential adverse effects vary by appliance. These cautions matter when comparing a custom guard with a store-bought option that has not been checked against your bite.
Tell your dentist if a guard creates persistent pressure, rubs your gums, feels loose, or seems to change the way your teeth meet. Do not keep wearing an uncomfortable appliance in the hope that significant symptoms will simply pass. Your dentist can check whether an adjustment, a different design, or another evaluation is needed.
People with untreated dental concerns, unexplained jaw-joint symptoms, or a suspected sleep-related breathing disorder should discuss those issues with their own clinician before relying on a night guard. A dentist can determine whether to address another concern first and whether an appliance is suitable for your teeth and bite.
Is a custom night guard worth discussing with a dentist?
A custom night guard is worth discussing when tooth wear, dental restorations, or possible nighttime clenching make protection a priority. The examination also helps distinguish a need for tooth protection from symptoms that call for further assessment. If you live on Mercer Island or nearby, contact Good Tooth Dental Care in Bellevue to arrange a consultation and talk through whether a custom night guard suits your needs.
Frequently Asked Questions
Do I need to wear a custom night guard all night?
A custom night guard is intended to be worn while you sleep, rather than for a set number of hours that applies to everyone. Your dentist will give you wearing instructions after checking its fit and bite contact. Ask how to use your specific appliance if your sleep schedule varies.
Will a dentist-made night guard stop me from grinding my teeth?
No. A dentist-made night guard primarily places a barrier between your teeth to help protect enamel and dental work from grinding forces. Clenching or grinding can still happen during sleep. If symptoms continue, your dentist can reassess your bite and jaw symptoms and discuss whether other approaches may help.
Should I ask about a custom night guard if I have crowns or bridges?
Yes. A custom night guard is worth discussing because crowns and bridges may need protection from grinding forces. Unlike a ready-made tray you shape yourself, a dentist-made appliance follows an examination and a fit check. Your dentist can check how the guard seats and where your teeth contact it.
How do I know whether I need a hard or soft night guard?
Your dentist can recommend a material after examining your teeth, bite, restorations, and jaw symptoms. Custom guards may use hard acrylic or softer plastic, and designs can serve different purposes. A research review reported varying results across splint designs, so the choice should follow an individual assessment.
What should I do if my night guard feels uncomfortable or changes my bite?
Contact your dentist for a fit check if your night guard causes persistent pressure, rubs your gums, feels loose, or changes how your teeth meet. Do not keep wearing it in the hope that significant discomfort will pass. Your dentist can decide whether to adjust it, recommend another design, or assess further.
What should I tell my dentist before getting a night guard?
Tell your dentist about new tooth chips, sensitivity, morning headaches, jaw fatigue, or grinding sounds noticed by a partner. Mention existing dental work, changes in your bite, and any concerns about breathing during sleep. These details help your dentist assess whether a guard suits you or another concern needs attention first.
This article is general information and is not medical advice. Talk to a licensed clinician about your own situation before making a treatment decision.
