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 September 30, 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 September 30, 2014).

Share This



More Health & Medicine News

Tuesday, September 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

How 'Yes Means Yes' Defines Sexual Assault

How 'Yes Means Yes' Defines Sexual Assault

Newsy (Sep. 29, 2014) Aimed at reducing sexual assaults on college campuses, California has adopted a new law changing the standard of consent for sexual activity. Video provided by Newsy
Powered by NewsLook.com
Scientists May Have Found An Early Sign Of Pancreatic Cancer

Scientists May Have Found An Early Sign Of Pancreatic Cancer

Newsy (Sep. 29, 2014) Researchers looked at 1,500 blood samples and determined people who developed pancreatic cancer had more branched chain amino acids. Video provided by Newsy
Powered by NewsLook.com
Colo. Doctors See Cluster of Enterovirus Cases

Colo. Doctors See Cluster of Enterovirus Cases

AP (Sep. 29, 2014) Doctors at the Children's Hospital of Colorado say they have treated over 4,000 children with serious respiratory illnesses since August. Nine of the patients have shown distinct neurological symptoms, including limb weakness. (Sept. 29) Video provided by AP
Powered by NewsLook.com
Dr.'s Unsure of Cause of Fast-Spreading Virus

Dr.'s Unsure of Cause of Fast-Spreading Virus

AP (Sep. 29, 2014) Doctors at the Children's Hospital of Colorado say they have treated over 4,000 children with serious respiratory illnesses since August. Nine of the patients have shown distinct neurological symptoms, including limb weakness. (Sept. 29) Video provided by AP
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:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

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