It might be the worst time of the year to be anything less than perfectly nice, but the art news this month is awfully naughty. Here's a holiday sampler that won't rot your teeth. That is, provided they're still in your head:

Gauguin's teeth were discovered at the bottom of a well recently, along with pigments, a coconut shell palatte and various liquor and perfume bottles. It appears the artist may have dug the well himself. Read the sordid details here.

Discover a collection of artful erotica 170 years in the making at the Bibliothèque Nationale through January 15, 2008. The "Enfer" (hell) section of the institution will open its doors to the public for the first time ever to reveal a secret stash that is said to run a close second to the Vatican's collection of "taboo" materials. Read a candid, if conservative, critique of the exhibition here.

Discover why London's Lisson Gallery is garnering a good deal of attention these days: Artist Santiago Sierra's latest sculpture that aims to get a little too close for comfort. I'll resist the urge to pun and just give you the link to the gallery and some decent coverage and call it a day.