Trismus, also known as lockjaw, is caused by trauma or injury to the mastication (chewing) muscles. You need your mastication muscles for chewing your food and opening your mouth. Without it, it would ...

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Abboud et al 1 present an important overview of a neglected topic. Trismus is a devastating and danger-ous manifestation of head and neck cancer. More significantly, it is an increasingly prevalent ...

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Lockjaw occurs when chewing muscles spasm, restricting the opening of the mouth. Diagnosis may involve a physical exam, blood tests, and imaging like CT scans or MRIs. Mild cases of lockjaw can be ...

Dr Sood states that the mouth getting locked open usually involves the temporomandibular joint. It is important to stay calm ...

Both wooden spatulas and a device called Therabite are used to help people who aren’t able to fully open their mouths after radiotherapy. This study compared these 2 methods for people who had ...

Dear Doctor: I had trouble opening my mouth wide when I was getting my teeth cleaned, and the hygienist said it could be TMJ. But my sister, who is a chiropractor, says she thinks it’s a muscle spasm.