TMJ is short for temporomandibular joint. It is located in the jawbone and it is the part responsible for jaw movement. TMJ is directly connected to the skull. It is a complex part of the body where nerves, muscles and cartilage work together in close proximity. With that, TMJ problems can be a scare. There are different TMJ problems that need extensive dental procedure and only a well-trained Brea dentist can treat it in safe ways.