This photo of a specimen from the Louvre was not accompanied by any explanatory text, and just a modicum of identifying information.
Bridge consists of a gold wire ligature of female human teeth.
Place of discovery: Sayda.
Period: 6th century BC
There is a town in Saxony, Germany called Sayda, but since this specimen comes from a "Near Eastern Antiquities" fund, the Sayda referred to is apparently the one in Lebanon. Regarding the work itself, one presumes that the two outermost teeth were still embedded in the jaw, since the gold wire wraps around them, and that the four center teeth with wire underneath them were fashioned into a bridge to serve a cosmetic (?and masticatory?) function. Perhaps someone with dental restorative experience can offer a more enlightened opinion.
The mind-numbing aspect of the specimen is, of course, the prehistoric date. One doesn't expect this degree of sophistication in 500 BC, although two-and-a-half millennia ago dental implants were being performed in Mesoamerica by the Maya.
Link (and a photo of other side of teeth), via Titam.