Trismus
Introduction
Introduction The disease is an acute infection caused by tetanus bacillus, which is characterized by intermittent muscle tonic spasm and masseter muscle spasm, which is called "dental closure". The clinical manifestations of tetanus are caused by exotoxin (tetanus) produced by tetanus. Tetanus is a slender, active, Gram-positive, anaerobic bacterium that forms spores. Spores can survive for years and can be found in soil and animal waste. If the injured tissue has a low oxygen content, tetanus can also occur after minor or insignificant trauma.
Cause
Cause
The cause of closed jaw
The clinical manifestations of tetanus are caused by exotoxin (tetanus) produced by tetanus. Tetanus is a slender, active Gram-positive anaerobic bacterium that forms spores. Spores can survive for years and can be found in soil and animal waste. If the injured tissue has a low oxygen content, tetanus can also occur after minor or insignificant trauma.
Toxins can enter the central nervous system along the peripheral motor nerves or reach the nerve tissue via the bloodstream. Tetanus can bind to the ganglioside membrane of the neuron, preventing the release of inhibitory neurotransmitters at the nerve endings, resulting in systemic tonic spasm, often accompanied by intermittent tonic convulsions. Toxins cannot be neutralized once they are combined.
Examine
an examination
Related inspection
Oral endoscopic pulp vitality measurement oral X-ray examination
Closed check
Patients with a history of trauma and muscle stiffness or paralysis should consider this disease. Tetanus may be confused with bacterial or viral meningoencephalitis, but conscious, cerebrospinal fluid and muscle spasm can be prompted for tetanus. Closed jaws must be differentiated from abscesses around the tonsils or posterior pharyngeal and other local causes. Phenothiazines can cause physiological rigidity.
Sometimes the wound material can produce tetanus, but the negative culture can not negate the diagnosis.
Diagnosis
Differential diagnosis
Closed and confusing symptoms
Unconsciously clenching the teeth during the day: Unconsciously clenching the teeth during the day is a type of molars. The so-called bruxism refers to those who have habitual molars or white sputum during sleep, and have unconscious molars, which are aggravated with time. Is a long-term vicious circle disease.
Tooth occlusion is weak: periodontitis often manifests as bleeding gums, bad breath, overflowing pus, loose teeth, severe occlusion and persistent dull pain.
Molaring at night: Children or adolescents involuntarily rub their upper and lower jaws during sleep, called rubbing. Normal people also have it, which may be caused by abnormal movement of the masticatory muscles, and is not pathological. However, if the molars occur frequently, it is an abnormal performance, which may be related to insect accumulation, nervousness and indigestion. Due to long-term molars, enamel and even dentin can be damaged, resulting in sore teeth when eating, so it should be noted. Bruxism refers to a brux that has a habitual molar when sleeping or an unconsciously used tooth when it is awake. The disease is common in the clinic, and the treatment effect is not obvious, and often brings a mental burden to the patient. After a long time, the patient may suffer from chewing weakness and temporomandibular joint fatigue. Serious nighttime bruising can also affect the rest of others, and even have adverse consequences.
