In the forums about dentistry, and most frequent subject matters largely to the dental community is regarding whether or not to use amalgam.
From this page we discussed this with two related news. One was based on a complaint which was published on the website of the Patient Advocate on possible amalgam toxicity, and another article summarizing the state of opinion of the dental community on this issue, emphasizing the advocates of amalgamation and defenders of their substitutes, such as "composites".
Contributions
The silver amalgam as a dental restorative is a clear decline in rider ship at the expense of materials with more aesthetic qualities. The amalgamation, from the beginning, has been a very controversial material because it contains mercury.
Researchers at the University of Calgary in Canada found that chewing releases small amounts of mercury vapor from amalgam restorations of silver and mercury levels in blood, urine and brain were related to the number of amalgam restorations silver.
Studies have shown a series of data:
* That exposure to mercury from amalgams is less than the exposure of mercury from food, water, air, medicines, cosmetics ...
* That the vapor rising from the amalgam can be from 1 to 3 micrograms of steam per day, according to OSHA (Occupational Safety and Health Administration).
* In many individuals with amalgam restorations are about 4 micrograms / gram of creatinine in urine. The problems begin when the ratio is from 25 micrograms per gram.
* There may be sensitivity or allergy to mercury due to mercury vapor loss
* It is estimated that the chance that side effects can occur from the use of amalgam is a patient for every 2,300
* No risks were found in pregnant dental professionals.
It is said that these small amounts of mercury can result from migraines to multiple sclerosis. To address this issue should follow the standards published by the ADA (American Dental Association), which warns that the greatest risk may occur when removing old amalgam, which must take place under complete isolation of the operative field. The maximum dose in the dental office is 300-500 micrograms/m3 air.
But there are experiences with a scientific rigor that can demonstrate a contribution of the dangers of amalgams. What looks like a positive response to the removal of amalgam may be a placebo effect or spontaneous improvement in the course of disease.
What we must bear in mind is that mercury is in the air, water and many other elements found in everyday life. That dentists have levels of 2 to 4 times higher than the rest and change their health is not affected and there is no evidence that pregnant women and children at risk low levels of mercury vapor from amalgams.
Conclusions
Institutions such as the A.D.A. or the Research Committee of the A.A.R.D. repeated every year that "there is no documented evidence to recommend the non-use of dental amalgam. Nevertheless, in some Nordic countries are restricting their use for environmental reasons.
Institution Food and Drug Administration issued reports in the same direction, "no valid scientific data proving causation of disorders or injuries caused by dental amalgam.
The truth is that amalgam is valued now for its longevity and its low propensity to failure, and ultimately there is no work that demonstrates the dangers of mercury amalgam.
Editorial: Dental Domain
Source: Professor Javier Garro. Lecturer in Dental Pathology and Therapeutics at the Faculty of Medicine and Dentistry of Barcelona
From this page we discussed this with two related news. One was based on a complaint which was published on the website of the Patient Advocate on possible amalgam toxicity, and another article summarizing the state of opinion of the dental community on this issue, emphasizing the advocates of amalgamation and defenders of their substitutes, such as "composites".
Contributions
The silver amalgam as a dental restorative is a clear decline in rider ship at the expense of materials with more aesthetic qualities. The amalgamation, from the beginning, has been a very controversial material because it contains mercury.
Researchers at the University of Calgary in Canada found that chewing releases small amounts of mercury vapor from amalgam restorations of silver and mercury levels in blood, urine and brain were related to the number of amalgam restorations silver.
Studies have shown a series of data:
* That exposure to mercury from amalgams is less than the exposure of mercury from food, water, air, medicines, cosmetics ...
* That the vapor rising from the amalgam can be from 1 to 3 micrograms of steam per day, according to OSHA (Occupational Safety and Health Administration).
* In many individuals with amalgam restorations are about 4 micrograms / gram of creatinine in urine. The problems begin when the ratio is from 25 micrograms per gram.
* There may be sensitivity or allergy to mercury due to mercury vapor loss
* It is estimated that the chance that side effects can occur from the use of amalgam is a patient for every 2,300
* No risks were found in pregnant dental professionals.
It is said that these small amounts of mercury can result from migraines to multiple sclerosis. To address this issue should follow the standards published by the ADA (American Dental Association), which warns that the greatest risk may occur when removing old amalgam, which must take place under complete isolation of the operative field. The maximum dose in the dental office is 300-500 micrograms/m3 air.
But there are experiences with a scientific rigor that can demonstrate a contribution of the dangers of amalgams. What looks like a positive response to the removal of amalgam may be a placebo effect or spontaneous improvement in the course of disease.
What we must bear in mind is that mercury is in the air, water and many other elements found in everyday life. That dentists have levels of 2 to 4 times higher than the rest and change their health is not affected and there is no evidence that pregnant women and children at risk low levels of mercury vapor from amalgams.
Conclusions
Institutions such as the A.D.A. or the Research Committee of the A.A.R.D. repeated every year that "there is no documented evidence to recommend the non-use of dental amalgam. Nevertheless, in some Nordic countries are restricting their use for environmental reasons.
Institution Food and Drug Administration issued reports in the same direction, "no valid scientific data proving causation of disorders or injuries caused by dental amalgam.
The truth is that amalgam is valued now for its longevity and its low propensity to failure, and ultimately there is no work that demonstrates the dangers of mercury amalgam.
Editorial: Dental Domain
Source: Professor Javier Garro. Lecturer in Dental Pathology and Therapeutics at the Faculty of Medicine and Dentistry of Barcelona
