Jaw joint pain

Introduction Jaw joint pain is a manifestation of temporomandibular joint disorders. Temporomandibular joint disorder syndrome is one of the common diseases in the oral and maxillofacial region. It is the most common disease in temporomandibular joint diseases. In recent years, the internationally accepted application name is temporomandibular joint disorder. Temporomandibular joint disorder syndrome is not a single disease, but a generic term for a group of diseases whose causes are not fully understood and have the same or similar clinical symptoms. The cause of the disease has not yet been fully elucidated. Most scholars have proposed factors related to the pathogenesis of this disease based on experimental and clinical studies, and both believe that the disease is multifactorial.

Cause

Generally considered to be related to the following factors:

1. Psychosocial factors: Patients often have emotional symptoms such as anxiety, irritability, nervousness, excitement, and insomnia. Some patients may have a causal relationship between mental and emotional factors and morbidity in patients with chronic protractedness. The effects of mental factors on recurrent symptoms can also be found.

2, occlusal factors: clinical examination of TMD patients often found obvious occlusal factors, including interference, early contact of the cusp, severe occlusion, deep overbite, most posterior teeth loss and excessive wear of the occlusal surface The vertical distance is too low.

3, immune factors: immunological studies show that the main components of articular cartilage such as collagen polysaccharides and chondrocytes are antigenic, because the articular cartilage has a matrix package, from the embryo to the adult are isolated from the vascular system, become a closed antigen, can not be themselves Immune system identification. Related experimental studies have shown that TMD also has cellular immunity involved.

4. Excessive joint load: Moderate weight bearing is important for maintaining the normal structure, function and physiological transformation of the joint. However, excessive weight bearing, beyond the physiological limit, can cause degenerative changes or even destruction of the joint.

5, joint anatomical factors: Functionally, the temporomandibular joint with the evolution of humans makes the joints and jaws more dexterous, to adapt to more complex speech and expression of the jaw movement. For this reason, from the anatomical structure, the corresponding joints and muscle ligaments are obviously weakened, and the bearing capacity of the joints is reduced. This type of human joint movement, flexibility, and range is a potential threat to the temporomandibular joint with reduced anatomy.

6, other factors: the joint area is affected by cold stimulation, poor posture caused by muscle dysfunction and affect the normal position of the mandible and condyle, etc., is also a factor inducing temporomandibular joint disorders.

an examination

Related inspection

Oral X-ray examination, oral endoscopic synovial fluid, visual inspection, bone imaging, static bone imaging

Patients often have chronic pain at the unilateral or bilateral temporomandibular joints. The pain can be radiated to the back of the ear, the mouth opening activity is limited, and local traction pain occurs. The joints of the temporomandibular joint often appear to be crisp and often chew. Things, yawning, getting worse by the cold.

Auxiliary inspection:

1X line plain film (Xuile tablets and condylar pharyngeal lateral slices), can be found in joint space changes and bone changes, such as sclerosis, bone destruction and hyperplasia, cystic changes.

2 joint angiography and magnetic resonance examination, can be found in the displacement of the disc, perforation and changes in the attachment of the joint disc.

3 joint endoscopy, early detection of this disease can be found.

Differential diagnosis

Open mouth and jaw sound: Zhang mouth jaw sound is one of the clinical manifestations of temporomandibular joint disorder syndrome.

Dislocation of the jaw: The dislocation of the jaw is caused by a fracture of the jaw.

Jaw cyst: refers to the presence of a liquid cystic mass in the jaw, which gradually increases and the jaw expands and destroys. According to the pathogenesis, it can be divided into two types: odontogenic and non-dental. The cyst is evolved from the odontoid tissue or the tooth; the non-odontogenic cyst can be formed by the epithelium remaining in the jaw bone during embryonic development, such as a fissure cyst, or a blood extravasation caused by injury. Sexual cysts and aneurysmal bone cysts.

The jaw was "fan-shaped" bone destruction: X-ray examination showed that the jaw was "fan-shaped" bone destruction, and the edge was worm-like as one of the main symptoms of gingival cancer.

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