An Ohio CBS-TV affiliate yesterday (Feb. 27) aired an investigative report about outsourcing dental lab work offshore —a nd the story's hook is that one of the crowns received from a Chinese lab contained lead.
The reporter worked with a local dentist to order eight dental crowns (porcelain and full metal) from several labs in China, which were then sent to NSL Analytics in Cleveland for testing. One of the crowns tested positive for lead at 210 ppm. The story also will include information about a woman from Kent, Ohio, with a partial bridge that apparently tested positive for lead at 160 ppm. The woman apparently filed or will be filing a lawsuit, alleging that the bridge caused infection and swelling, which she attributes to the lead.
Of course, you and I know no dental prosthetic device should contain lead. Is this a problem with out-of-the-country labs? Should we be worried about things like this, or is it being blown out of proportion? Let me know your comments.
If you're interested, the ADA has a tip sheet on what you should know about working with dental labs and what questions you may be asked by your patients.