Featured Research

from universities, journals, and other organizations

Mercury In Dental Fillings Does Not Appear To Cause Alzheimer's, According To University Of Kentucky Study

Date:
February 10, 1999
Source:
University Of Kentucky Medical Center
Summary:
Mercury used in dental fillings does not appear to cause Alzheimer’s disease, according to a new study by University of Kentucky researchers. The study compared mercury levels in autopsied brains, and dental amalgam status and history in Alzheimer’s disease subjects as well as control subjects.

LEXINGTON, KY (Feb. 8, 1999) - Mercury used in dental fillings does not appear to cause Alzheimer’s disease, according to a new study by University of Kentucky researchers. Results of the study are published in the lead article in today’s Journal of the American Dental Association.

The study compared mercury levels in autopsied brains, and dental amalgam status and history in Alzheimer’s disease subjects as well as control subjects. The researchers found no significant association of Alzheimer’s disease with the number, surface area or history of dental amalgams.

"Our key finding is that there is no relationship whatsoever between mercury found in the brain and amalgam," said Stanley Saxe, D.M.D., one of the study’s authors and a professor emeritus of periodontics and geriatric dentistry in the UK College of Dentistry. "Although very small amounts of mercury are released from dental amalgam – generally when rubbed or abraded due to brushing or eating - it is not taken up by the brain."

Funded by a grant from the National Institutes of Health, the study was prompted by scientific controversy on the topic that has been brewing for several years.

The study, which began in 1991, was a collaborative effort among researchers from the UK Sanders-Brown Center on Aging and the UK College of Dentistry. Saxe and William Markesbery, M.D., director of the Sanders-Brown Center on Aging, led the research team. "The uniqueness of the collaborative effort between the departments of chemistry, statistics, the College of Dentistry and leadership from the Center on Aging, made this research possible and successful," Markesbery said.

"This is the only study that has looked at this question in a large group of people," Saxe said.

Dental amalgam has been used since the early 1830s and is considered an excellent restorative material in dentistry because of its strength and durability.

However, because dental amalgam is comprised of 50 percent mercury, a neurotoxin, it has been the subject of continuing controversy as a possible public health risk.

"The fact that there was no differential found in brain mercury levels due to dental amalgams is very exciting news for the dentistry profession," Saxe said.


Story Source:

The above story is based on materials provided by University Of Kentucky Medical Center. Note: Materials may be edited for content and length.


Cite This Page:

University Of Kentucky Medical Center. "Mercury In Dental Fillings Does Not Appear To Cause Alzheimer's, According To University Of Kentucky Study." ScienceDaily. ScienceDaily, 10 February 1999. <www.sciencedaily.com/releases/1999/02/990210065946.htm>.
University Of Kentucky Medical Center. (1999, February 10). Mercury In Dental Fillings Does Not Appear To Cause Alzheimer's, According To University Of Kentucky Study. ScienceDaily. Retrieved July 24, 2014 from www.sciencedaily.com/releases/1999/02/990210065946.htm
University Of Kentucky Medical Center. "Mercury In Dental Fillings Does Not Appear To Cause Alzheimer's, According To University Of Kentucky Study." ScienceDaily. www.sciencedaily.com/releases/1999/02/990210065946.htm (accessed July 24, 2014).

Share This




More Health & Medicine News

Thursday, July 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

New Painkiller Designed To Discourage Abuse: Will It Work?

New Painkiller Designed To Discourage Abuse: Will It Work?

Newsy (July 24, 2014) The FDA approved Targiniq ER on Wednesday, a painkiller designed to keep users from abusing it. Like any new medication, however, it has doubters. Video provided by Newsy
Powered by NewsLook.com
Doctor At Forefront Of Fighting Ebola Outbreak Gets Ebola

Doctor At Forefront Of Fighting Ebola Outbreak Gets Ebola

Newsy (July 24, 2014) Sheik Umar Khan has treated many of the people infected in the Ebola outbreak, and now he's become one of them. Video provided by Newsy
Powered by NewsLook.com
Condemned Man's US Execution Takes Nearly Two Hours

Condemned Man's US Execution Takes Nearly Two Hours

AFP (July 24, 2014) America's death penalty debate raged Thursday after it took nearly two hours for Arizona to execute a prisoner who lost a Supreme Court battle challenging the experimental lethal drug cocktail. Duration: 00:55 Video provided by AFP
Powered by NewsLook.com
China's Ageing Millions Look Forward to Bleak Future

China's Ageing Millions Look Forward to Bleak Future

AFP (July 24, 2014) China's elderly population is expanding so quickly that children struggle to look after them, pushing them to do something unexpected in Chinese society- move their parents into a nursing home. Duration: 02:07 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins