Navigation Links
Polished to perfection
Date:7/10/2008

This release is available in German.

Brush your teeth twice a day! Any child knows these days that regular tooth care is the only way to banish the bacteria that cause caries. Yet sometimes that is not enough. The tooth surface wears down and gets uneven ?and the problem is that dental plaque adheres particularly well to a rough surface. Dentists therefore offer professional cleaning services, removing plaque and discoloration with abrasive prophylactic pastes. This renders the tooth surface beautifully smooth, making it difficult for bacteria to gain a foothold. Yet there is a risk that the polishing treatment will also grind away precious tooth enamel and dentin at the exposed necks of teeth. The manufacturers therefore have to find the happy medium when developing their prophylactic pastes: The pastes should be just abrasive enough to remove superficial discoloration and plaque, but preferably not wear down the tooth enamel.

Until now, scientists lacked any realistic objective measuring techniques to assess tooth abrasion caused by chewing and by the effect of toothpastes. A leading manufacturer of dental hygiene products asked the Fraunhofer Institute for Mechanics of Materials IWM in Freiburg, one of whose specialties is the analysis and visualization of surface roughness, to help them develop new prophylactic pastes. The effectiveness of a prophylactic paste has so far been measured by how well the granules that it contains are able to smoothen a rough surface. The test is performed by first roughening tooth enamel or denture materials such as ceramics and titanium to a precisely defined value with an aggressive grinding material. But this does not truly reflect reality, as chewing wears out different materials at different rates. The new measuring method developed by the IWM researchers, a kind of chewing simulation, takes this factor into account. As the experts led by Dr. Raimund Jaeger, head of the Biomedical Materials and Implants department, discovered when comparing pastes and subsequently analyzing the surfaces, some pastes polish the surface but also unnecessarily ablate the tooth material, producing slight grooves on the tooth surface. The ideal paste, on the other hand, polishes so lightly that only the roughness is eliminated while the tooth enamel is hardly ground at all. "Obviously, every case is different," says Jaeger. "Teeth with particularly heavy plaque or discoloration will need a more abrasive paste." Normally, however, a gentler prophylactic paste will do the job. Thanks to the IWM researchers, the manufacturer has now been able to optimize the formulation.


'/>"/>

Contact: Dr. Raimund Jaeger
raimund.jaeger@iwm.fraunhofer.de
49-761-514-2284
Fraunhofer-Gesellschaft
Source:Eurekalert  

Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Polished to perfection
(Date:4/29/2016)... York, NY (PRWEB) , ... April 29, 2016 , ... New York City based oral ... . This surgery is a very effective way to treat obstructive sleep apnea. Dr. Jamali ... , Orthognathic surgery is a procedure that involves one or both jaw bones. This surgery ...
(Date:4/29/2016)... ... April 29, 2016 , ... Jvion, the market ... funding led by Eastside Partners, with participation from existing investor Martin Ventures. ... and accelerate its technology and product roadmap. , “Jvion is experiencing ...
(Date:4/29/2016)... , ... April 29, 2016 , ... ... print media enterprise focused entirely on patients with cancer, today announced that Lynne ... chosen as the 2016 CURE® Extraordinary Healer® for Oncology Nursing , which ...
(Date:4/29/2016)... ... April 29, 2016 , ... Natren, ... animal line of probiotics, Petbiotics ™, as they fondly call them. As ... rescue groups networking for their non-profit organizations. Animal rescues across the nation face ...
(Date:4/29/2016)... , ... April 29, 2016 , ... ... awareness for Duchenne muscular dystrophy, and funding for Duchenne research, participated in the ... of the Sarepta Therapeutic’s novel Duchenne drug eteplirsen. The meeting at the Marriott ...
Breaking Medicine News(10 mins):
(Date:4/29/2016)... -- Glycotope GmbH, a clinical-stage immuno-oncology company ... of Dr. Alfredo Zurlo as Chief Medical ... many years clinical experience and a proven track record ... was at Mologen AG where he was Chief Medical ... Zurlo held various positions at F Hoffmann La Roche ...
(Date:4/28/2016)...  Marking its one year anniversary since launching ... risk test, Color Genomics announced a ... impact the most common hereditary cancers affecting both ... analyzes hereditary cancer risks for breast, colorectal, melanoma, ... Color Test is physician ordered and includes genetic ...
(Date:4/28/2016)... 28, 2016 Dr. Vivek Ahuja ... and Ste phen Schmidt ... leading provider of cloud-based software solutions for life sciences, today announced ... bring a wealth of insight to a growing business.  This will ... George Phillips joined ArisGlobal in the position of ...
Breaking Medicine Technology: