Lead in dental crowns
A significant number of crown and bridges in the US is manufactured by the foreign laboratories. There are no standard overseeing these products. Dentists generally check the fit of the crown and not where it was manufactured. Restoring teeth with crowns made out of metallic substrate is a common and customary way to restore tooth.
An Ohio TV station recently broadcasted a report on air claiming a dental crown made overseas had tested positive for lead. American Dental Association suggests patients to ask their dental office where their dental laboratory is and if the lab provides the office with the FDA approved materials.
More importantly one should realize that with the advent of cosmetic dentistry there are actually not that many cases where a crown with metallic substrate is indicated to restore a tooth. Porcelain based crowns and veneers with thin Feldspathic porcelain are now state of the art in producing life like crowns. Feldspathic porcelain is a natural organic type of porcelain hand crafted by a master ceramist. Porcelain Veneers are just one place Feldspathic porcelain can be used.
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