Understanding Bruxism and Its Impact on Oral Health

Bruxism is a common condition characterized by involuntary grinding and clenching of the teeth. It can occur while a person is awake or asleep, often without their awareness. While mild cases do not require treatment, more severe forms can lead to significant tooth wear, sometimes requiring extensive intervention. Signs associated with severe bruxism include damaged teeth, jaw pain or tiredness, headaches and facial discomfort. Because many people are unaware of their teeth grinding or clenching habits, it is important to know and recognize the signs associated with this condition, to ensure timely and appropriate dental care is received. 

Several factors are associated with the development of bruxism, including mental health conditions, stress, neurological disorders such as Parkinson's disease, certain medications and habitual behaviours such as cheek or lip biting (Mayo Clinic, 2017). In addition, pathophysiological factors may contribute to this condition, particularly disturbances in the neurotransmitter systems of the brain that regulate motor activity during sleep. Sleep disorders such as sleep apnea have also been linked to sleep bruxism, suggesting that disturbances to sleep may increase the likelihood of bruxism. Lifestyle factors such as smoking and alcohol consumption have also been linked, with one study reporting that cigarette smokers showed signs of bruxism at twice the rate of non-smokers (Shetty et al., 2010). 

Bruxism is a widely researched condition due to its prevalence among both children and adults. While bruxism does not cause serious complications for most individuals, more severe cases can result in significant damage to the teeth, jaw and existing dental work, including fillings and crowns. Individuals with severe bruxism may also experience chronic facial pain, muscle tension and headaches. Temporomandibular joint (TMJ) disorders are also linked with bruxism, as the jaw joints may be affected by the persistent grinding and clenching of the teeth (Mayo Clinic, 2017). 

Individuals who notice signs or symptoms of the condition are encouraged to consult their general dentist. Dentists can identify any dental changes associated with bruxism, including jaw tenderness, muscle stiffness, flattened or chipped tooth surfaces and can monitor the condition for early intervention if required. 

For severe cases of bruxism, there are many treatments available. These include occlusal splints or mouth guards, which help keep the top and bottom teeth separated during sleep to reduce further damage. If the teeth are already significantly damaged and are sensitive, dental work can repair the exposed or damaged tooth surfaces (Mayo Clinic, 2017). If sleep disturbances are found to be a contributing cause, dentists may refer patients to a healthcare professional or a sleep specialist for further assessment. Although more research is needed regarding pharmacological interventions, some individuals may benefit from muscle relaxants, botox injections or medications to manage anxiety and stress. In addition, lifestyle changes may help reduce the occurrence of the condition, including stress management, reducing smoking and alcohol consumption, practicing good sleep habits and attending regular dental visits.

Bruxism can negatively impact oral health if left untreated. Early identification of the condition is essential to ensure appropriate treatment and preventative strategies are implemented, reducing the risk of complications and supporting long-term oral health. 

References 

Martynowicz, H., Gac, P., Brzecka, A., Poreba, R., Wojakowska, A., Mazur, G., Smardz, J., & Wieckiewicz, M. (2019). The Relationship between Sleep Bruxism and Obstructive Sleep Apnea Based on Polysomnographic Findings. Journal of Clinical Medicine, 8(10), 1653. https://doi.org/10.3390/jcm8101653

Mayo Clinic. (2017). Bruxism (teeth grinding) - Symptoms and causes. Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/bruxism/symptoms-causes/syc-20356095 

Shetty, S., Pitti, V., Satish Babu, C. L., Surendra Kumar, G. P., & Deepthi, B. C. (2010). Bruxism: A Literature Review. The Journal of Indian Prosthodontic Society, 10(3), 141–148. https://doi.org/10.1007/s13191-011-0041-5