Assuming you've been diagnosed with calcification of the pineal gland, I know of nothing that's been proven effective (or even extensively tried) for decalcifying it. While flouride has been suggested as a possible culprit, the small amount found in common commercial toothpastes probably wouldn't make much of a difference, although it couldn't hurt to try an alternative toothpaste. I've tried looking for information on the properties of tumeric for this, but have found nothing. In general, if the gland isn't found to have a tumor on it, the calcification is considered inconsequential.
I hope this is helpful to you. Good luck with this. Let us know if you have any further information that may be pertinent.
John Kenyon, EMT, CCT
Non-invasive cardiology tech, Emergency and Critical Care technician, Critical Incident Stress Mgmt. specialist