What are lead and bismuth lines?
What are lead and bismuth lines?
Usually, bismuth produces a black line, due to bismuth sulfide, along the gums, near the teeth, similar to the Burton’s line which can be found in lead poisoning. This is not likely to occur if the gum is edentulous or the gum and the teeth normal. It is more common when gingivitis and carious teeth are present.
What causes blue line on gums?
Burton’s line is a blue-purplish line on the gums seen in lead poisoning. It is caused by a reaction between circulating lead with sulphur ions released by oral bacterial activity, which deposits lead sulphide at the junction of the teeth and gums.
How much lead is toxic in grams?
Most pharmaceutical companies have set a limit for maximum daily intake of lead as 1.0 μg/g, however prolonged intake of even this low level of lead is hazardous to human beings. Occupational exposure also results in elevated blood lead levels.
How much lead dust is toxic?
occur (extremely dangerous). Between 40 and 80 µg/dL, serious health damage may be occuring, even if there are no symptoms (seriously elevated).
What is chronic lead poisoning?
Chronic poisoning Signs of chronic exposure include loss of short-term memory or concentration, depression, nausea, abdominal pain, loss of coordination, and numbness and tingling in the extremities. Fatigue, problems with sleep, headaches, stupor, slurred speech, and anemia are also found in chronic lead poisoning.
How do I get rid of the black line on my gums?
The best way to eliminate that unattractive dark line is to replace the crown. In most cases, we can use a dental crown that is entirely made of porcelain, which looks completely natural. Today’s dental porcelain is also very strong, so you will not be sacrificing any strength with a crown that is free of metal.
Why are my teeth black at the gum line?
When tartar reaches below the gum line, referred to as subgingival tartar, it tears into the blood vessels located within the gum. When blood pigmentation and proteins mix with tartar, they turn it black.
Can lead poisoning be cured?
Lead is more harmful to children because their brains and nervous systems are still developing. Lead poisoning can be treated, but any damage caused cannot be reversed.
How can you tell if you have lead poisoning?
Symptoms
- Developmental delay.
- Learning difficulties.
- Irritability.
- Loss of appetite.
- Weight loss.
- Sluggishness and fatigue.
- Abdominal pain.
- Vomiting.
What neutralizes lead?
Some pros use trisodium phosphate (TSP), which neutralizes lead by turning it into lead phosphate.
How does lead poisoning affect the human body?
Poisoning by lead in the body, especially affects the brain. Lead poisoning is a type of metal poisoning caused by lead in the body. The brain is the most sensitive. Symptoms may include abdominal pain, constipation, headaches, irritability, memory problems, inability to have children, and tingling in the hands and feet.
Why are children more susceptible to lead poisoning?
Epidemiology. In adults of all ages, men have higher blood lead levels than women do. Children are more sensitive to elevated blood lead levels than adults are. Children may also have a higher intake of lead than adults; they breathe faster and may be more likely to have contact with and ingest soil.
How is the amount of lead in the blood determined?
The amount of lead in the blood and tissues, as well as the time course of exposure, determine toxicity. Lead poisoning may be acute (from intense exposure of short duration) or chronic (from repeat low-level exposure over a prolonged period), but the latter is much more common.
What kind of food can cause lead poisoning?
Ingestion of metallic lead, such as small lead fishing lures, increases blood lead levels and can be fatal. Ingestion of lead-contaminated food is also a threat. Ceramic glaze often contains lead, and dishes that have been improperly fired can leach the metal into food, potentially causing severe poisoning.
