Gum lead wire

Introduction It is a blue-black wire strip with a width of about 1 mm formed by the deposition of lead sulfide particles on the edge of the lead gingival for a long time. It is produced by the action of hydrogen sulfide produced by the decomposition of protein in the food residue between the lead and the tooth between the teeth. The gingival margin of the incisors, tines and the first molars is more common, and the pigmentation of the cheeks, tongue and other parts of the mouth can be seen. At present, lead lines can be found in a large number of oral lead compounds or lead poisoning patients with poor oral hygiene, and lead lines caused by occupational exposure are rare. Lead line can only indicate lead absorption in the body, and is not a characteristic indicator for clinical diagnosis of lead poisoning.

Cause

Mainly related to the following two factors. First, the performance of metal poisoning. Second, the base metal may cause the gums to darken, mainly because the metal nickel and chromium ions are released into the tissue, forming a black deposit with the sulfur ions in the body fluid.

an examination

Related inspection

Serum lead (Pb) porphyrin fecal porphyrin in urine lead feces

Oral manifestations: lead lines appear in the gingival mucosa, more common in the cusps and the edge of the labial rim of the first molar, about 1mm from the gingival margin. Gray-blue micro-dots. Lead line is a manifestation of chronic poisoning. Lead poisoning is also associated with other systemic manifestations: such as nervous system symptoms, dizziness, insomnia, sore limbs: digestive system: such as constipation, abdominal pain, and bloating.

Differential diagnosis

There are blue lines in the gums: chronic sputum poisoning can cause stomatitis, blue lines of the gums, rash, fear of eating, weight loss, diarrhea and jaundice. Poisoning a large amount, excessive medical use or long-term application of tincture can cause poisoning.

Gingival hyperplasia: This disease can be a manifestation of gum disease in systemic diseases, or it can be a manifestation of drug side effects after taking certain drugs. Clinical symptoms: Spontaneous gingivitis is a hereditary disease found in hereditary gingival fibromatosis and tuberous sclerosis. It begins to develop more than young children, with diffuse hypertrophy on the gums and partly covering the teeth. Some drugs can cause gingival hyperplasia, such as phenytoin for the treatment of epilepsy, hyperplasia of the gums after long-term use, hypertrophy and hyperplasia of the gums at the root of the teeth.

Swelling of the gums: The gums are swollen and swollen, and generally accompanied by pain.

Gingival hypertrophy: During pregnancy, due to changes in hormone levels during pregnancy, it can cause hypertrophy of the gums, which is prone to gingivitis and bleeding of the gums, especially after brushing. This is a common symptom in the third trimester.

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