How to Tell If You Grind Your Teeth at Night
Teeth grinding is a problem that affects nearly one in ten individuals, yet many of us don’t even realize we’re doing it. And that’s a problem given just how harmful it can be to our health. Here’s how to find out if you grind your teeth when you sleep—and why it’s something you shouldn’t ignore.
Most people who grind their teeth at night don't know they do it. The usual clues are a sleeping partner who hears grinding, a sore or tired jaw or a dull headache when you wake up, and flattened, chipped or cracked teeth that your dentist notices. None of these proves you grind, because other problems cause the same symptoms, so a dental examination is the way to confirm it and rule out other causes.
What signs suggest you grind your teeth while you sleep?
Signs you might notice in the morning:
A sore, tight or tired jaw, or aching in the muscles of the cheeks and temples
A dull headache, often around the temples
Teeth that feel sore or sensitive when you first wake
Tender spots along the cheek or the edge of the tongue where it presses against your teeth
Signs in your teeth and dental work:
Front teeth that look shorter, flatter or more even than they used to
Small chips along the biting edges
Fillings or crowns that break or come loose more often than you'd expect
New sensitivity to cold
Signs other people notice:
A partner or family member hears grinding or clicking during the night
Many cases are mild. Grinding becomes a problem when it is frequent or forceful enough to wear teeth, break dental work or cause jaw pain.
What else can cause the same symptoms?
Jaw pain, headaches and sensitive teeth have many possible causes. A cracked tooth, a cavity, gum recession, a sinus problem or a jaw joint disorder can feel similar. This is why I'd rather examine your teeth and jaw than have you assume the cause. If a tooth hurts when you bite, that deserves its own evaluation.
Should you mention snoring or poor sleep?
Yes. Grinding during sleep sometimes occurs alongside snoring or other sleep problems. If you snore loudly, wake up gasping or feel tired despite a full night in bed, talk with your physician as well as your dentist. The National Institute of Dental and Craniofacial Research notes that a sleep study may be recommended in some cases of night-time grinding.
What can you do before your visit?
Ask the person you share a room with whether they've heard grinding.
Keep a short record of when you wake with jaw soreness or headaches and what was going on the day before.
Notice evening habits. Caffeine and alcohol are both linked with grinding, and so are smoking and some medications.
Don't stop a prescribed medication because you think it's causing grinding. Talk with your prescriber first.
Over-the-counter guards are widely sold. A guard that doesn't fit well can be uncomfortable or change how your teeth meet, so it's worth having your teeth and bite checked first.
What happens at a dental examination for grinding?
I look at wear patterns on your teeth, check your fillings and crowns, feel the jaw muscles and joints, and ask when your symptoms happen. Together that helps show whether grinding is likely, how much damage there is and whether protection makes sense. Our companion article explains what bruxism is and whether a night guard helps.
Where can you get grinding symptoms checked in Jacksonville?
Our office is at 3675 Hendricks Avenue, near San Marco. Read how we evaluate tooth grinding and bruxism, learn what happens during a comprehensive dental exam, or contact the office at 904-398-1549 to arrange a visit.
Sources
National Institute of Dental and Craniofacial Research. Bruxism. Last reviewed March 2025, retrieved 2026-10-06.
About the author. CJ Henley, DMD, is a general dentist in Jacksonville whose practice focuses on cosmetic and restorative dentistry, dental implants and dental care around head and neck cancer. Meet Dr. Henley.
CJ Henley, DMD, PA · 3675 Hendricks Avenue, Jacksonville, FL 32207 · 904-398-1549
Updated October 2026.
Sugary Snacks and Kids' Teeth: 6 Ways to Cut Back
Everyone knows a healthy diet is essential to a healthy life, but how many know that eating right can help prevent tooth decay and gum disease?
How often your child has sugar matters as much as how much. Each sugary snack or drink feeds the bacteria that make acid, and that acid softens enamel for a while afterward. Keeping sweets to mealtimes, choosing less sticky snacks, making water the everyday drink and brushing twice a day with fluoride toothpaste go a long way. You don't need to overhaul the pantry.
1. Why does the timing of sugar matter?
Every time your child eats or drinks something sugary, mouth bacteria produce acid that attacks the enamel. A child who sips juice or grazes on snacks all afternoon gives their teeth little time to recover.
What helps: If your child is going to have a sweet, serve it with a meal. There's more saliva flowing at mealtimes, which helps rinse away sugar and neutralize acid.
2. Why are sticky snacks a problem?
Fruit leathers, gummy snacks, gummy vitamins and dried fruit cling to the grooves of the back teeth and keep feeding bacteria long after they're eaten.
What helps: Choose crunchy fruits and vegetables such as apples, carrots and celery. They're lower in sticky sugar and get saliva going. They don't replace brushing, but they leave far less behind.
3. What should kids drink?
Juice boxes and sports drinks are often sold as healthy choices, but they bathe the teeth in sugar.
What helps: Make water the default drink between meals and keep juice for mealtimes, if at all. If your child does have juice away from home, a drink of water afterward helps rinse the teeth.
A note on Jacksonville water. JEA's tap water contains fluoride that occurs naturally in the Floridan aquifer. JEA has never added fluoride, and since July 1, 2025, Florida law doesn't allow fluoride to be added to public water systems. Levels vary, and well water and other utilities are different. For most children the dependable source of fluoride is brushing twice a day with fluoride toothpaste in the right amount for their age. Read more about fluoride toothpaste and Jacksonville's water.
4. How do you spot hidden sugar?
Sugar appears on labels under many names, including high fructose corn syrup, agave nectar, maltose and dextrose. Flavored yogurts, granola bars and cereals can contain more added sugar than you'd expect.
What helps: Compare labels, and favor snacks where sugar isn't one of the first few ingredients.
5. Is cheese a good snack for teeth?
Cheese is a useful choice. It's low in sugar, it gets saliva flowing, and it contains calcium and phosphate, minerals that are part of enamel.
What helps: String cheese or a few cubes of cheddar make a good snack on their own or at the end of a meal.
6. Does it help if parents model good habits?
Yes. Children copy what they see. If they see you reaching for water and nuts instead of soda and cookies, they're more likely to do the same.
What helps: Make it a family project. Let your child help choose tooth-friendly snacks at the grocery store so they feel some ownership.
What if your child has a sweet treat while you're out?
Between school, sports and Florida heat, kids are on the go, and treats happen. If your child has something sugary at the park or around San Marco Square, have them rinse with water and brush when you get home.
Smart snack swaps
Instead of fruit gummies or fruit leather, try fresh apple slices. Less sticky sugar left on the teeth, and chewing gets saliva going.
Instead of juice boxes or sports drinks, try water. No sugar bathing the teeth between meals.
Instead of chips or crackers, try string cheese or cubed cheddar. Low in sugar and prompts saliva. Starchy snacks tend to stick in the grooves.
Where can families get advice in Jacksonville?
Our office is at 3675 Hendricks Avenue, near San Marco. For adult diet advice, read about foods that support healthy teeth. For younger children, see our parent's guide to early childhood dental problems. To ask a question, contact the office at 904-398-1549.
Sources
American Dental Association, MouthHealthy. Baby bottle tooth decay. Retrieved 2026-10-06.
JEA. Water constituents.
Florida Senate. SB 700 (2025), effective July 1, 2025. Reported by WLRN, May 6, 2025.
About the author. CJ Henley, DMD, is a general dentist in Jacksonville whose practice focuses on cosmetic and restorative dentistry, dental implants and dental care around head and neck cancer. Meet Dr. Henley.
CJ Henley, DMD, PA · 3675 Hendricks Avenue, Jacksonville, FL 32207 · 904-398-1549
Updated October 2026.