Losing sleep as a result of aches and pains can significantly impact your everyday life. Specifically, teeth grinding, technically known as bruxism, can cause jaw pain, damaged teeth, and an overall restful night’s sleep decreased. What many people might not realize, however, is the link between teeth grinding and jaw locking.
The symptoms of these two conditions are seemingly dissimilar at first. Teeth grinding, especially while sleeping, can cause headaches, facial pain, insomnia, and sore jaw muscles. Meanwhile, symptoms of jaw locking—when the jaw can become stuck in one position, suddenly or over time—can cause difficulty talking, eating, and yawning. In some cases, severe jaw locking can even lead to a locked jaw.
But these symptoms may not be as different as they initially seem. In fact, research increasingly suggests a connection between these two conditions. Some studies have shown a significant correlation between teeth grinding and jaw locking, especially among young women with temporomandibular joint (TMJ) disorders.
So, what exactly is the link between teeth grinding and jaw locking? To answer this question, it’s important to first understand what teeth grinding and jaw locking are, as well as what causes them.
What is teeth grinding?
Teeth grinding, also known as bruxism, is a condition wherein individuals grind their teeth unconsciously, often unaware of it. This grinding can happen during the day (awake bruxism), but it most often occurs while sleeping (sleep-related bruxism). The extent and severity of bruxism varies; some people may only grind their teeth occasionally, while others may grind their teeth all night long.
A variety of factors can cause teeth grinding, including stress, anxiety, misaligned teeth, specific medications, and substances like caffeine. Teeth grinding increases the risk of cavities and tooth decay, and it can lead to more serious dental issues like temporomandibular joint (TMJ) disorder.
What is jaw locking?
Jaw locking, or temporomandibular joint disorder (TMJ), occurs when the jaw becomes misaligned or “stuck” in one position, and movement becomes difficult or even painful. This is typically the result of a sudden trauma or excessive force, though it can also happen over time as a result of a range of causes.
Jaw locking symptoms can include difficulty opening and closing the mouth, pain when talking or eating, and clicking or popping sounds. In severe cases, the jaw might even become “locked” in place, making it difficult to move.
What is the link between teeth grinding and jaw locking?
While the exact link between teeth grinding and jaw locking is still not entirely clear, research has shown that teeth grinding can potentially cause an increased risk of TMJ disorders. Bruxism often causes overuse of the jaw muscles, which can lead to muscle pain and tension that can contribute to jaw tension.
Other studies have found some evidence suggesting that jaw locking might be linked to teeth grinding. When a person grinds their teeth, muscles around the jaw can become overexerted, leading to soreness, tension, and potential misalignment. Over time, persistent tension or misalignment can result in jaw locking, especially among individuals with bruxism.
In addition to teeth grinding as a potential cause, researchers believe that genetic predisposition, trauma, and a history of conditions like arthritis can also increase susceptibility to jaw locking. Up to one-third of individuals who experience the symptoms of jaw locking have been found to have a history of bruxism.
What can be done to overcome teeth grinding and jaw locking?
Treatment for teeth grinding and jaw locking often involves a combination of home care and professional intervention.
When it comes to teeth grinding, self-care approaches like avoiding caffeine and reducing stress can help reduce the likelihood of teeth grinding. Wearing a night guard while sleeping can also be an effective strategy, as it can help protect the teeth from damage caused by bruxism.
In terms of self-care for jaw locking, simple things like eating a soft diet and applying a warm compress to the affected area can bring some relief. Avoiding habits like gum chewing or biting nails can further help reduce symptoms.
When these self-care strategies are not enough to bring relief, professional treatment can help. Dentists and physicians might recommend treatments like physical therapy, botox injections, oral splints, or even surgery in cases of severe jaw locking.
The bottom line
Teeth grinding and jaw locking might appear as separate, unrelated conditions. But recent evidence suggests that a link does indeed exist, particularly among women who experience TMJ disorders. Considered together, the evidence begs the question of whether achieving some degree of relief from teeth grinding can also help to prevent or reduce the severity of jaw locking. In any case, careful attention to home care and professional treatment can help manage symptoms and bring relief.
