ONE OF THE SYMPTON FPR TETANUS IS LOCK JAW(TRISMUS)
Tetanus is a medical condition that is characterized by a prolonged contraction of skeletal muscle fibers. The primary symptoms are caused by tetanospasmin, a neurotoxin produced by the Gram-positive, obligate anaerobic bacterium
Clostridium tetani.
Infection generally occurs through wound contamination, and often involves a cut or deep puncture wound. As the infection progresses, muscle spasms in the jaw develop hence the common name, lockjaw. This is followed by difficulty swallowing and general muscle stiffness and spasms in other parts of the body.[1] Infection can be prevented by proper immunization and by post-exposure prophylaxis.[2]
What Causes Trismus?
Trismus can result from muscle damage, joint damage, rapid growth of connective tissue (scarring), or a combination of these factors.
Opening the mouth can be restricted by factors internal to the joint, for example, bony ankylosis (bony in growth within the joint), fibrous ankylosis, arthritis, infections, trauma, and (perhaps) microtrauma that may involve bruxism (grinding the teeth).
Central nervous system disorders can also restrict mouth opening. Tetanus, lesions affecting the trigeminal nerve, and drug toxicity may all be suspects in this condition.
Treatment-induced causes are also possible. Examples include third molar extractions which may tear the chewing muscles or hyperextend the joint, hematomas secondary to dental injection, and late effects of jaw fixation after mandibular fracture or other trauma.
In short, trismus can result from:
Radiation therapy to the head and neck
Surgery involving the head and neck
Temporomandibular joint disorders (TMD)
Infections
Systemic diseases, e.g. rheumatoid arthritis or scleroderma
Direct trauma to the head and neck
Indirect trauma, e.g. whiplash
Facial burns
Stress-induced disorders, e.g. clenching and grinding of the teeth (bruxism)
Congenital(at birth) or hereditary diseases
Aging
why do u think it's infection? pls give an explaination...
thanks🙂
