such as "Introduction", "Conclusion"..etc
in Canada and China are reporting development of a new dental filling
material that substitutes natural ingredients from the human body for
controversial ingredients in existing “composite,” or plastic,
fillings. The new material appears stronger and longer lasting as well,
with the potential for reducing painful filling cracks and emergency
visits to the dentist, the scientists say. Their study appears in the
current edition of ACS Applied Materials & Interfaces, a monthly journal.
X.X. Zhu and colleagues point out that dentists increasingly are using
white fillings made from plastic, rather than “silver” dental fillings.
Those traditional fillings contain mercury, which has raised health
concerns among some consumers and environmental issues in its
production. However, many plastic fillings contain controversial
ingredients (such as BisGMA) linked to premature cracking of fillings
and slowly release bisphenol A, a substance considered as potentially
toxic to humans and to the environment.
The scientists developed a dental composite that does not contain these
ingredients. Instead, it uses “bile acids,” natural substances produced
by the liver and stored in the gallbladder that help digest fats. The
researchers showed in laboratory studies that the bile acid-derived
resins form a hard, durable plastic that resists cracking better than
News release courtesy of American Chemical Society
Enter the code exactly as it appears. All letters are case insensitive.