Silver (Ag): 67% wt -
Tin (Sn): 25-27% - Copper (Cu): If it increases the rate of 6% exedente as
being non-reactive inert body. - Zinc (Zn)
The process by which metals are joined with solid mercury amalgamation is
called, but before doing this process is necessary to shape the dental amalgam
alloys. Specification No. 1 of the ADA
(American Dental Association) requires amalgam alloys are mainly silver and
tin.
Function
In dentistry, we speak specifically of "silver amalgam" to refer to
the alloy used to fill cavities that appear as a result of the decay and
restore masticatory function and restore stability to return to this material
in the tissues lost . The mixture is placed in one of the pockets of Black as
the type of injury you have to fill. These are always retentive as the amalgam
does not adhere to the tooth.
Health in the United States, including the Office
for the Investigation of the Life Sciences continues to investigate the safety
of amalgams used in dental restorations, although some believe that this
attitude is to avoid paying compensation to people affected by dental amalgams.
There is no scientific evidence linking the development of Multiple Sclerosis
or other degenerative neurological diseases or with restorations that contain
mercury.
What is Dental Amalgam
Amalgam restoration is a material used in dentistry, which is the alloy of
mercury with other metals such as silver, tin, copper, zinc or gold. metals
could be attacked as silver, palladium, gold. The alloy most commonly used in dentistry
is based on Mercury, Silver, Tin, Copper and Zinc. It has a silver color, which
is not aesthetically to patients, since it does not have optical properties
consistent with the tooth structure.
The mixture has the highest performance in terms
of safety and cost-effective, unlike the new restorative materials such as
composite resins, which are more expensive.
BLACK: dosing the components of amalgam and obtained a ratio of materials for
dental restorations:
Dental amalgam is
considered a safe material, durable and versatile, used for restoration of
teeth, which has been used for over 150 years. The metals present in amalgam is
chemically joined to form a solid, stable and secure.
Toxicity
Although dental amalgams are a source of mercury exposure and are associated
with a higher level of mercury excretion in urine, there is no clinical
evidence of toxic effects that are not quantifiable unusual hypersensitivity
reactions. A panel of experts from the has concluded that under the existing
evidence, amalgams do not possess a health risk and should not be replaced
merely to decrease mercury exposure.
It should be noted that not all professionals are in agreement with the supposed
safety of amalgam, some studies argue that mercury can be absorbed systemically
and reach the brain tissue, liver, kidneys. However, FDA and other
organizations of Service of Public
