As many as 90% of us are doing it and If you suffer from headaches, brain fog, poor sleep or a tense jaw it could be you. Here's what to do

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Are you a teeth grinder or a jaw clencher? If so you're part of an ever-growing number. The stress of the pandemic has seen cases of a teeth-grinding (aka bruxism) rising according to dentists. "In the past few months, I have seen a 40 per cent increase in patients with issues related to teeth grinding such as a painful jaw," says dentist Dr Ruth Baidoo of the Forum Dental Studio in Lincolnshire . At Dr Hanna Kinsella's  Kin Lane Dental  clinic in St Helen's, there's been a 50 per cent rise in cases.

"I put it largely down to the stress that many people have found themselves under as a result of lockdown and the lifestyle changes this has brought, from job losses to trying to juggle homeschooling and working, and the worry about family members," she says.

Most teeth grinding cases are indeed caused by stress and anxiety - the NHS estimates up to 70 per cent. What's more, most of us do it. Dr Rhona Eskander of the Chelsea Dental Clinic  sees it in 90 per cent of patients. "In my clinic, nine out of ten clients suffer from bruxism, due to a hectic lifestyle and the strain of daily life."

It's generally a nocturnal habit, but some of us do it during the day too without noticing. Not only does teeth grinding damage and weaken our teeth, leading to more fillings and cracked crowns, because it often happens at night it can have a dramatic impact on the quality of our sleep, leaving us feeling unrested and foggy even if we've been out for the count for eight hours. It can cause migraines and even change the shape of your face as we inadvertently bulk up our jaw muscles.

We took a seat in the dentist’s chair to find out what causes teeth grinding and what to do about it.

Why do we grind our teeth?

1. You're under stress (or drinking too much coffee)

Stress is a big factor in teeth grinding, Dr Milad Shadrooh aka The Singing Dentist tells us. Episodes of teeth grinding often tally with stressful life events, for instance, sitting exams, moving house, losing a job or starting a new one ,  trying for a baby  or becoming parents  or divorce. This can mean that teeth grinding comes and goes, but once you start teeth grinding it can become a habit, so even when the stress passes, you're still grinding. "Daytime grinding generally tends to be associated with stress or abnormally high intakes of caffeine," confirms Dr Emma Cunningham of Dr Emma Clinics  in Ireland.

2. Your teeth don't fit well together

At night our jaw muscles can become hyperactive. If our teeth don't fit together properly (known as unbalanced occlusion) it causes our muscles to go into overdrive result in teeth grinding, says Dr Emma. “A history of complex dental treatments, can also be a factor," says Dr Milad Shadrooh. For example, if you’ve had braces in the past, you may be more likely to clench your jaw and grind your teeth.

3. You're a teething toddler

“As for children, teeth grinding normally goes away by itself. It can be associated with teething, but usually kids grow out of it. It’s in adults that we see the biggest problems," says Dr Shadrooh.

4. You're straining too much when you exercise

If you're a fan of lifting weights at the gym , you could be jaw clenching regularly without realising it. According to a survey by 'medtech' company Renew Health, 80 per cent of weightlifters clench their jaw during lifting sessions, which can result in earache, headache or tooth pain, as well as eroding your teeth.

What are the side effects of teeth grinding?

1. It can change the shape of your face

"Clenching and grinding our teeth daily is effectively given a rigorous, frequent workout for the jaw muscle, which increases in size as a result," says Dr Zainab Al Mukhtar of Harrow on the Hill Dental . "Patients often complain that they feel they have a widened jaw, that leaves their face looking larger than they would like and ‘square’ in appearance."

2. It can chip your teeth

“Internal signs of grinding our teeth include tooth wear," says Dr Milad Shadrooh. "The canines flatten out and the incisor teeth are often chipped or uniformly flat. Teeth fractures are another sign and are especially common in teeth that have fillings, as the force involved in teeth grinding causes tiny breaks in brittle teeth."

Tiny lines in teeth (called enamel craze) are also often telling of tooth grinding and you'll also often see tooth marks or indentations in your cheeks.

3. It can cause headaches, migraines and jaw pain

Tooth grinding can trigger not only tooth sensitivity and jaw pain but migraines , tensions headaches and shoulder pain. Other tooth-grinding evidence includes waking up with a sore jaw, a headache or having a migraine.

4. It can cause daytime tiredness and brain fog

"Sleep problems are commonly related to teeth grinding," says Dr Shadrooh. When we grind our teeth our brain is still active and we don’t go through REM sleep, the kind that lets your brain really switch off and process your day. As such, if you grind your teeth you'll often wake up feeling groggy despite getting a full eight hours sleep and it can have a real impact on cognitive activity and ability that day."

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What are the solutions for teeth grinding and jaw clenching?

1. Ask your dentist for a bite splint for teeth grinding

Dentists will often recommend a bite splint (like a gum shield) to people who are grinding their teeth. It's normally worn at night over the top or bottom teeth and stops you from grinding.

Our Editorial Director's life was transformed when she had one made ten years ago. "It costs a fortune, around £600, but I really can't put a price on how it improved my sleep. From the first night I wore it, it was as if someone had turned up the volume on my dreams I felt so much more rested in the morning," she says. "It's so true that teeth grinding keeps you out of restorative REM sleep. It's the best investment I've ever made and it is now, without exaggeration, my most treasured possession."

While bite splits are designed to stop the side effects of teeth grinding rather than curing it, they can work to de-programme the habit of teeth grinding as they reduce the force of the jaw, says Dr Milad Shadrooh.

To create a custom bite splint, a dentist takes an impression or digital scan of the teeth. Because it is tailor-made it fits snugly and is in a firm yet pliable material, making it comfortable to wear all night.

You can have a bespoke bite splint made cost from £100 to £300. Over-the-counter options, such as sports guards are available until you can get a custom-made one. "Over-the-counter options tend to be less comfortable and don’t last as long as one made by your dentist," says Dr Ruth Baidoo.

2. Book in for botulinum toxin injections for teeth grinding

Another treatment that’s often combined with a dental splint is botulinum toxin injections (presenter Nadia Sawalha has been treated with botulinum toxin for bruxism). "Botulinum toxin works to freeze and deactivate the muscle, so used in a targeted way it can reduce the bulk of the jaw muscle. This means that you’re less likely to grind your teeth," says Dr Milad Shadrooh.

"Botulinum toxin in isolation is also not a long-term solution as it wears off. Combine botulinum toxin therapy with a dental splint, in my experience, is a treatment that’s 95 per cent effective in treating and stopping teeth grinding," he says.

3. Try facial massage tools or treatments for teeth grinding

Gua sha massage is good at releasing tension so in turn, can help with grinding or clenching of the jaws and teeth. "The ancient practice of gua sha  works to release the fascia, relax muscles and lift the weight of the whole area you're working on," says gua sha expert facialist Ada Ooi.

She suggests placing your gua sha tool over your masseter muscle, along the side of your jaw, the part that you can feel when you clench your teeth. "Then deeply massage with circular motions around the jaw area," says Ada. "Despite being such a small muscle in comparison to the rest of your body, it is extremely strong so when massaging don't be afraid to apply pressure to relieve tension.

"Follow by placing the tool on the temporalis, the two sides of your head just above your ears," Ada advises. "This area is heavily involved in chewing, so it takes a lot of impact which can cause tension. Press with medium pressure and massage up and down, then do circles to relieve all tension."

MORE GLOSS: The best gua sha tutorials online 

When it comes to relieving jaw tension, we   Sarah Chapman's Skinesis The Facialift tool , £24. It has two nobbly wheels, which you roll along your jawline to mimic the very firm hands of its expert facialist creator Sarah. Use it at right angles to your face, not from the chin upwards. It's strong stuff and we know from experience it works.

If you want to put your face in the hands of a professional, try the intra-oral massage at the London Holistic Dental Centre  with Lynne Rae, a massage therapist and Pilates teacher who specializes in the face. She can help ease jaw pain associated with clenching or grinding through relaxing muscles of the face, neck and jaw. People normally have three or four sessions, priced at £150 per session.

We're also fans of Face Gym, which offers its own take on intra-oral massage with the Intra Oral Tension + Stress Relief  online workout, £45, which teaches self-massage techniques to help relieve facial tension in the jaw. In a one-to-one Zoom appointment, a Facegym trainer will show you techniques to ease tension throughout the face, reducing discomfort and easing teeth grinding. You'll learn intra-oral massage to help disperse jaw tension – you can use gloves for this if you don’t like the idea of using bare hands inside your mouth. At the end, you get a personalised training plan with product recommendations for continued treatment and long-lasting relief from jaw tension.

Get the Gloss Commercial projects manager and Facegym fan Catherine Fulwood swears by Facegym's newly launched Electric Muscle Stimulation Mask, £415 . It's not just a facial workout, but also serves to relieve tension in the jaw muscles. "I always grind my teeth at night and when I use it in the mornings and it really helps," she says.

4. Bring some calm into your life

As teeth grinding is often a result of stress, calming activities can help to stop you from grinding. "address the cause of teeth grinding," advises Dr Hanna Kinsella. "Try relaxation techniques such as meditation, yoga, or cognitive behavioural therapy ( CBT )."

It's also worth avoiding anything that makes you feel wired, such as caffeine and alcohol, particularly before bedtime.

5. Breathe through the nose when you exercise

If you notice yourself clenching your jaw when you exercise, you could wear a standard sports mouth shield while you're lifting weights (or wear your nighttime bite splint). Alternatively, instead of exhaling through your mouth as you exert yourself, breathe through the nose, which makes it much harder to clench your teeth and it also improves your airflow as well as helping to relax your jaw and neck muscles. Try to relax your facial muscles between sets to give your jaw a break.

MORE GLOSS: Should I brush bleeding gums?