{"id":78,"date":"2026-11-06T10:00:00","date_gmt":"2026-11-06T08:00:00","guid":{"rendered":"https:\/\/lavrentiadis-grigoris.com\/vrouxismos-narthikas\/"},"modified":"2026-11-07T18:21:55","modified_gmt":"2026-11-07T16:21:55","slug":"vrouxismos-narthikas","status":"publish","type":"post","link":"https:\/\/www.lavrentiadis-grigoris.com\/en\/vrouxismos-narthikas\/","title":{"rendered":"Bruxism: teeth clenching and the night guard"},"content":{"rendered":"<section class=\"phead\">\n  <div class=\"wrap\">\n    <nav class=\"crumbs\" aria-label=\"Directions\"><a href=\"https:\/\/www.lavrentiadis-grigoris.com\/en\/\">Home<\/a><a href=\"https:\/\/www.lavrentiadis-grigoris.com\/en\/blog\/\">Articles<\/a><span>Functional<\/span><\/nav>\n    <h1>Bruxism: teeth clenching and the night guard<\/h1>\n    <p class=\"phead__sub\">Grinding your teeth in your sleep wears them down and makes your jaw ache. When a night guard helps.<\/p>\n  <\/div>\n<\/section>\n\n\n\n<section class=\"sec\">\n  <div class=\"wrap\">\n    <div class=\"split split--svc\">\n      <article class=\"prose article\">\n        <p class=\"byline\">Text: <a href=\"https:\/\/www.lavrentiadis-grigoris.com\/en\/giatros\/\">Dr Grigoris Lavrentiadis<\/a>, Dental Surgeon \u2013 Prosthodontist \u00b7 <time datetime=\"2026-11-04\">4 November 2026<\/time> \u00b7 4 min read<\/p>\n<p class=\"lead\"><strong>Bruxism is the clenching or grinding of the teeth, often during sleep, and can cause wear, jaw pain, headaches or sensitivity. In many cases a custom-made night guard, which protects the teeth, helps.<\/strong><\/p>\n\n<h2>What bruxism is<\/h2>\n<p>Bruxism is the involuntary contraction of the masseters, the muscles that close the jaw, with clenching or grinding of the teeth. It occurs during sleep (night-time bruxism) or also during the day, without your noticing, when you concentrate or feel anxious. The forces applied are much greater than those of normal chewing, so over time the teeth, muscles and temporomandibular joint are put under strain.<\/p>\n<p>The cause is multifactorial: stress and anxiety, sleep disorders, caffeine and alcohol consumption, smoking, certain medications and the way the teeth fit together.<\/p>\n\n<h2>Symptoms and signs<\/h2>\n<ul>\n<li>wear or \u00abflattening\u00bb of the biting and chewing surfaces,<\/li>\n<li>small fragments or cracks in the teeth and restorations,<\/li>\n<li>pain or fatigue in the facial muscles, especially in the morning,<\/li>\n<li>pain in the temporomandibular joint, clicking or difficulty opening,<\/li>\n<li>headaches in the temples,<\/li>\n<li>sensitivity to cold, which may be due to enamel wear or gum recession,<\/li>\n<li>a grinding sound that your partner hears.<\/li>\n<\/ul>\n<p>Many patients learn about their bruxism from the dentist, who notices the wear during the examination.<\/p>\n\n<h2>When a night guard is needed<\/h2>\n<p>A night guard may be recommended when there are signs of intense clenching or grinding, tooth wear, muscle fatigue, pain in the temporomandibular joint or headaches related to tightening of the jaws. The night guard does not \u00abcure\u00bb bruxism but protects the teeth and reduces the load.<\/p>\n\n<h2>Night-time and daytime bruxism<\/h2>\n<p>Night-time bruxism cannot be controlled at will, which is why protecting the teeth with a night guard makes sense. Daytime bruxism, i.e. clenching during the day, is managed mainly through awareness: if you notice that your teeth are touching or your jaw is tense, relax. The rule is \u00abteeth apart, lips closed, tongue on the palate\u00bb. The two forms may coexist, and the examination helps you understand which applies in your case.<\/p>\n\n<h2>How the treatment is done, step by step<\/h2>\n<h3>1. Examination<\/h3>\n<p>The dentist examines the teeth, muscles and joint, asks about sleep, stress and habits and, if needed, requests X-rays.<\/p>\n<h3>2. Impression<\/h3>\n<p>An impression of the teeth is taken, so that a night guard is made that fits your own mouth exactly. Ready-made guards from the shops do not fit properly and can cause bite problems.<\/p>\n<h3>3. Delivery and fitting<\/h3>\n<p>The night guard is tried in the mouth and adjusted so that the bite is comfortable and even.<\/p>\n<h3>4. Follow-up<\/h3>\n<p>After a period, we check how you are responding, whether the symptoms have subsided and whether the night guard shows wear.<\/p>\n\n<h2>Duration and familiarisation<\/h2>\n<p>The night guard is usually worn at night. In the first few days it may feel strange, you may produce more saliva or take it out in your sleep; this usually passes as you get used to it. It is cleaned daily with water and a toothbrush, kept in its case and should not be exposed to heat. The night guard wears down, and is checked at every visit.<\/p>\n\n<h2>Risks if left untreated and when to see the dentist<\/h2>\n<p>Uncontrolled bruxism can lead to advanced wear, cracks and fractures of the teeth, gum recession, destruction of restorations and chronic jaw pain. Ask for an examination if you have persistent jaw pain, locking or difficulty opening, if teeth or fillings keep breaking or if you notice your teeth getting shorter.<\/p>\n\n<h2>What you can do today<\/h2>\n<p>Notice whether you wake up with pain or a tight jaw, whether your teeth look shorter or flatter and whether fillings often break. Avoid chewing gum and biting objects, which keep the muscles working constantly, and try a warm compress on the jaw muscles in the evening. These do not replace an examination, but they bring relief until a diagnosis is made.<\/p>\n\n<h2>Alternatives and complementary measures<\/h2>\n<ul>\n<li>stress reduction and relaxation techniques,<\/li>\n<li>good sleep hygiene and limiting caffeine and alcohol in the evening,<\/li>\n<li>exercises and physiotherapy for the jaw muscles, where appropriate,<\/li>\n<li>restoration of worn teeth, when damage has already occurred,<\/li>\n<li>assessment by another specialist, if the bruxism is related to sleep disorders.<\/li>\n<\/ul>\n\n<h2>Bruxism and children<\/h2>\n<p>Teeth grinding also occurs in children, often during periods of tooth development, and in most cases it passes with age. However, if you notice marked wear or the child complains of jaw pain or headaches, an examination is worthwhile to decide whether any intervention is needed.<\/p>\n\n<h2>Frequently asked questions<\/h2>\n<h3>What is bruxism?<\/h3>\n<p>It is the clenching or grinding of the teeth, often during sleep. It can cause wear, jaw pain, headaches or sensitivity. In many cases a special night guard, worn during sleep, helps.<\/p>\n<h3>When is a bruxism night guard needed?<\/h3>\n<p>When there are signs of intense clenching or grinding, tooth wear, muscle fatigue, pain in the temporomandibular joint or headaches related to tightening of the jaws.<\/p>\n<h3>Is sensitivity to cold normal?<\/h3>\n<p>Sensitivity may be due to gum recession, enamel wear, decay, cracks, bruxism or recent dental work. If it persists or is severe, it needs to be checked.<\/p>\n\n<h2>Book an appointment<\/h2>\n<p>If you wake up with jaw pain or have noticed wear on your teeth, book an appointment at our practice in Thessaloniki for an examination and, if needed, a custom-made night guard.<\/p>\n        <div class=\"share\" aria-label=\"Share\">\n          <span class=\"share__label\">Share<\/span>\n          <a href=\"https:\/\/www.facebook.com\/sharer\/sharer.php?u=https%3A%2F%2Fwww.lavrentiadis-grigoris.com%2Fen%2Fvrouxismos-narthikas%2F\" target=\"_blank\" rel=\"noopener\" aria-label=\"Facebook\"><svg><use href=\"#i-facebook\"\/><\/svg><\/a>\n          <a href=\"https:\/\/wa.me\/?text=%CE%92%CF%81%CE%BF%CF%85%CE%BE%CE%B9%CF%83%CE%BC%CF%8C%CF%82%3A%20%CF%83%CF%86%CE%AF%CE%BE%CE%B9%CE%BC%CE%BF%20%CF%84%CF%89%CE%BD%20%CE%B4%CE%BF%CE%BD%CF%84%CE%B9%CF%8E%CE%BD%20%CE%BA%CE%B1%CE%B9%20%CE%BD%CE%AC%CF%81%CE%B8%CE%B7%CE%BA%CE%B1%CF%82%20%CF%8D%CF%80%CE%BD%CE%BF%CF%85%20https%3A%2F%2Fwww.lavrentiadis-grigoris.com%2Fen%2Fvrouxismos-narthikas%2F\" target=\"_blank\" rel=\"noopener\" aria-label=\"WhatsApp\"><svg><use href=\"#i-whatsapp\"\/><\/svg><\/a>\n          <a href=\"viber:\/\/forward?text=%CE%92%CF%81%CE%BF%CF%85%CE%BE%CE%B9%CF%83%CE%BC%CF%8C%CF%82%3A%20%CF%83%CF%86%CE%AF%CE%BE%CE%B9%CE%BC%CE%BF%20%CF%84%CF%89%CE%BD%20%CE%B4%CE%BF%CE%BD%CF%84%CE%B9%CF%8E%CE%BD%20%CE%BA%CE%B1%CE%B9%20%CE%BD%CE%AC%CF%81%CE%B8%CE%B7%CE%BA%CE%B1%CF%82%20%CF%8D%CF%80%CE%BD%CE%BF%CF%85%20https%3A%2F%2Fwww.lavrentiadis-grigoris.com%2Fen%2Fvrouxismos-narthikas%2F\" aria-label=\"Viber\"><svg><use href=\"#i-viber\"\/><\/svg><\/a>\n          <a href=\"https:\/\/www.linkedin.com\/sharing\/share-offsite\/?url=https%3A%2F%2Fwww.lavrentiadis-grigoris.com%2Fen%2Fvrouxismos-narthikas%2F\" target=\"_blank\" rel=\"noopener\" aria-label=\"LinkedIn\"><svg><use href=\"#i-linkedin\"\/><\/svg><\/a>\n          <button type=\"button\" data-copy=\"https:\/\/www.lavrentiadis-grigoris.com\/en\/vrouxismos-narthikas\/\" aria-label=\"Copy link\"><svg><use href=\"#i-link\"\/><\/svg><span>Copy<\/span><\/button>\n        <\/div>\n        <div class=\"article__cta\">\n          <div><b>Would you like the dentist to see it?<\/b><p>Every mouth is different. The appropriate treatment is recommended after a clinical examination.<\/p><\/div>\n          <a class=\"btn btn--w\" href=\"https:\/\/www.lavrentiadis-grigoris.com\/en\/rantevou\/?r=vrouxismos\">Book an appointment<\/a>\n        <\/div>\n      <\/article>\n      <aside class=\"side\">\n        <div class=\"side__box\"><h2 class=\"h3\">Related service<\/h2><p><a href=\"https:\/\/www.lavrentiadis-grigoris.com\/en\/ypiresies\/leitourgiki\/\"><b>Functional Dentistry<\/b><\/a><\/p><p class=\"muted\">Bruxism, tooth wear and custom-made night guards.<\/p><\/div>\n        <div class=\"side__box\">\n          <h2 class=\"h3\">Other articles<\/h2>\n          <ul class=\"ticks\"><li><svg><use href=\"#i-check\"\/><\/svg><a href=\"https:\/\/www.lavrentiadis-grigoris.com\/en\/emfytevmata-ti-prepei-na-xerete\/\">Dental implants: what they are and who can have them<\/a><\/li><li><svg><use href=\"#i-check\"\/><\/svg><a href=\"https:\/\/www.lavrentiadis-grigoris.com\/en\/fovos-odontiatrou\/\">Afraid of the dentist? 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