A bridge is made up of two crowns one on each tooth on either side of the gap -- these two anchoring teeth are called abutment teeth -- and a false tooth/teeth in between. These false teeth are called pontics and can be made from gold, alloys, porcelain or a combination of these materials.
Over the Counter Medications. Drugs that are safe and effective for use by the general public without a prescription are defined as over-the-counter (OTC) drugs.
So what is FDA approved? The FDA has not had a great reputation when it comes to approving prescription drugs and otc drugs. The organization has caught some slight about its interest in the pharmaceutical industry rather than considering patients health regarding the drugs.