Dr. Harold Loe.
Dr. Harold Loe, the Director of the National Institute of Dental Research ( NIDR), stated in the September, 1993 edition of "Dental Products Report":
"That first filling is a critical step in the life of a tooth. Using amalgam for the first filling requires removing a lot of the tooth substance,
not only diseased tooth substance but healthy tooth substance as well. So, in making the undercut you sacrifice a lot, and this results in a weakened tooth.
The next thing you know the tooth breaks off, and you need a crown. Then you need to repair the crown...and so it continues to the stage where there is no more to repair and you pull the tooth.
With the first filling you should do something that can either restore the tooth or retain more healthy tooth substance. Use new materials-composites or materials you can bond to the surface without undercuts. You can do this with little removal of the tooth substance so that the core of the tooth is still there."
Causes of Amalgam Failure
The National Institute of Dental and Craniofacial Research (NIDCR)
1948— On June 24, Public Law 80-755, the National Dental Research Act created the National Institute of Dental Research (NIDR). On September 16, the institute was established. The institute changed its name to National Institute of Dental and Craniofacial Research (NIDCR) to accurately reflect its research base. NIDCR became official on October 21, 1998, with the Omnibus Consolidated and Emergency Supplemental Appropriations Act, H.R. 4328.
Who we are: The National Institute of Dental and Craniofacial Research (NIDCR) is the federal government's lead agency for scientific research on oral, dental and craniofacial health and disease. NIDCR is one of the National Institutes of Health (NIH) in the U.S. Department of Health and Human Services.
Our Mission: Our mission is to improve oral, dental and craniofacial health through research and research training, and by sharing science-based health information with the public and health care professionals.
Location: NIDCR headquarters are located on the NIH campus in Bethesda, Md., just 10 miles outside Washington, DC.
Budget: Annual budget is approximately $409 million. NIDCR distributes about 75 percent of its research funding to grantees at universities, dental schools, and medical schools, primarily in the United States.