Crowns may be temporary or permanent and may be made out of materials such as porcelain, resin, or metal. Dentures Dentures, removable replacements for missing teeth, come in two types: partial and complete dentures. Dental implants and bridges are suitable alternatives to dentures.
Investigational Drugs and Devices (IND/IDE) Overview. As defined by the Food and Drug Administration (FDA), an IND, or investigational new drug application, is a request for authorization from the FDA to administer an investigational drug or biological product to humans.
(See Section 510 of the Federal Food, Drug, and Cosmetic Act (Act) (21 U.S.C. Â§ 360)). Drug products are identified and reported using a unique, three-segment number, called the National Drug Code (NDC), which serves as a universal product identifier for drugs. FDA publishes the listed NDC numbers and the information submitted as part of the listing information in the NDC Directory which is updated daily.