Avoid clenching teeth and injuring TMJ joints in the jaw with advice from a licensed dental assistant in this free video on dental hygiene.
Bio: Michelle McPhail is a dental tech and the office coordinator at one of the most popular cosmetic dentistry centers in the Tampa Bay area.
Expert: Michelle McPhail
It has long been thought that overuse of the muscles surrounding the joint through teeth grinding puts pressure on the joint, causing the pain.
TMD can also lead to jaw 'popping' and clicking and difficulty opening your mouth. The NHS suggests up to 30 per cent of adults experience it.
The belief that bruxism is the leading cause of TMD has led to the use of treatments such as mouthguards to prevent teeth grinding (that can cost up to £700 privately).
Hundreds of clinics in the UK also offer Botox injections into muscles around the joint, to reduce the force of the bite. But a U.S. study has found that people diagnosed with TMD are actually less likely to grind their teeth, suggesting mouthguards or jabs may be pointless for many.