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 ...

Jaw locking, also known as jaw lock or TMJ locking, can be painful and alarming. This article explains why our jaw might lock open, exploring common causes like temporomandibular joint disorder (TMJ), ...

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.

Have you been struggling with jaw pain, finding it hard to open or close your mouth, or experiencing uncomfortable cramping in your jaw? These symptoms might be signs of a condition called locked jaw, ...

Q: 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. What is ...