Medically reviewed by Edmund Khoo, DDS Lockjaw (trismus) is a painful condition that limits your ability to open your mouth all the way. It occurs when the muscles you use to chew spasm, meaning they ...

Toothaches, ranging from mild discomfort to intense pain, signal underlying dental issues like decay or infection. Different ...

Causes of one-sided jaw pain include conditions such as TMD and sinusitis. Treatment can depend on the cause. Learn more here.

Osteomyelitis and septic arthritis are two types of infections affecting your musculoskeletal system, usually caused by bacteria.