Featured Research

from universities, journals, and other organizations

University Of Florida Dental Material Helps Dentures Stay Planted

Date:
June 20, 1997
Source:
University Of Florida Health Science Center
Summary:
A five-year study of a dental implant material developed at UF shows it successfully prevents jaw bone loss after tooth extraction.

Related Articles



GAINESVILLE, Fla.---Denture wearers who fear their new false teeth will slip and slide may have reason to smile.

A five-year study of a dental implant material developed at the University of Florida shows it successfully prevents bone loss after tooth extraction.

Jaw bone deterioration can alter facial structure, enabling some denture wearers to touch their nose with their tongue and giving them the appearance of cartoon characters Andy Gump or Popeye. Dentures also can dislodge. The problem forces many to have their dentures repeatedly relined or even replaced.

Bone loss is most rapid in the first six to 24 months after tooth extraction. In the first five years, the typical person will lose almost three-eighths of an inch from each jaw.
But when a slender, translucent cone-shaped implant made of Bioglass is implanted in the jaw, bone loss is slowed or prevented, said Harold Stanley, professor emeritus of oral and maxillofacial pathology and oncology at UF's College of Dentistry and head of the Bioglass implant study.

"Of the more than 20 million people in the United States who wear complete dentures, 70 percent say they are dissatisfied with them, especially the lower denture," Stanley said. "Bioglass could be the substance that could make them happier. It is cheaper than alternative materials, stays in place long-term and contains natural body products."

Bioglass was invented 28 years ago by former UF materials engineer Professor Larry Hench. The implants, smaller than a dime, range from 4 to 12 mm in length and are inserted into newly emptied tooth sockets. Bioglass implants bond to living bone through a reaction between a chemical substance on their surface and body fluids. Currently, the material appears to have the capacity for the fastest rate of bone and soft tissue bonding of known bioactive materials.

More than 20 years ago, UF researchers first used Bioglass in baboons. Their initial strategy was to replace the whole tooth with Bioglass, but the tooth crowns immediately broke off. The Bioglass implant roots, however, remained in place, and bone began reforming on their surfaces. This discovery led to using Bioglass as root replacements in humans in 1983.

Researchers were able to track 20 of 29 original patients for more than five years. The total number of implants: 168. To date, only 14.3 percent of the implants have come out of the socket and 7.7 percent required grinding down of the implant as they rose to the surface of the gum. Only 1 percent requiring grinding down, came out. The Bioglass retention rate is 86 percent after five years.

Other implant studies using materials such as acrylic resin and calcium phosphate have not proven as successful. Implant losses have been reported between 8 to 55 percent with only 30 months of follow-up. "The overall clinical outcome of UF's Bioglass implant study, with an average of more than 85 percent of the implants being retained long-term, is significantly more favorable than results of previous investigations of other implant materials intended for the same type application," said Jack E. Lemons, director of laboratory surgical research and professor of biomaterials and surgery at the University of Alabama at Birmingham.

Bioglass appears to have potential widespread use in dental research.
"The bottom line for this research is to improve the quality of life for people who have lost their teeth," said co-researcher A.E. Buddy Clark, professor of prothosdontics and associate dean of the UF dental college. "When using Bioglass, future denture wearers can avoid many dental problems."

The UF study can be found in the February issue of International Journal of Oral and Maxillofacial Implants.


---------------------------------------------------

Recent UF Health Science Center news releases also are available on the UF Health Science Center Communications home page. Point your browser to http://www.vpha.health.ufl.edu/hscc/index.html


Story Source:

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


Cite This Page:

University Of Florida Health Science Center. "University Of Florida Dental Material Helps Dentures Stay Planted." ScienceDaily. ScienceDaily, 20 June 1997. <www.sciencedaily.com/releases/1997/06/970620134154.htm>.
University Of Florida Health Science Center. (1997, June 20). University Of Florida Dental Material Helps Dentures Stay Planted. ScienceDaily. Retrieved March 30, 2015 from www.sciencedaily.com/releases/1997/06/970620134154.htm
University Of Florida Health Science Center. "University Of Florida Dental Material Helps Dentures Stay Planted." ScienceDaily. www.sciencedaily.com/releases/1997/06/970620134154.htm (accessed March 30, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Monday, March 30, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

S. Leone in New Anti-Ebola Lockdown

S. Leone in New Anti-Ebola Lockdown

AFP (Mar. 28, 2015) Sierra Leone imposed a three-day nationwide lockdown Friday for the second time in six months in a bid to prevent a resurgence of the deadly Ebola virus. Duration: 01:17 Video provided by AFP
Powered by NewsLook.com
These Popular Antibiotics Can Cause Permanent Nerve Damage

These Popular Antibiotics Can Cause Permanent Nerve Damage

Newsy (Mar. 27, 2015) A popular class of antibiotic can leave patients in severe pain and even result in permanent nerve damage. Video provided by Newsy
Powered by NewsLook.com
WH Plan to Fight Antibiotic-Resistant Germs

WH Plan to Fight Antibiotic-Resistant Germs

AP (Mar. 27, 2015) The White House on Friday announced a five-year plan to fight the threat posed by antibiotic-resistant bacteria amid fears that once-treatable germs could become deadly. (March 27) Video provided by AP
Powered by NewsLook.com
House Ready to Pass Medicare Doc Bill

House Ready to Pass Medicare Doc Bill

AP (Mar. 26, 2015) In rare bipartisan harmony, congressional leaders pushed a $214 billion bill permanently blocking physician Medicare cuts toward House passage Thursday, moving lawmakers closer to resolving a problem that has plagued them for years. (March 26) 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