ROLE OF PH & SALIVA IN REMINERALISATION: Human saliva has a marked ability to
reharden softened enamel surfaces.
- Use toothpaste which has fluoride to brush your teeth.- Brush your teeth only after an hour of consuming sugary drinks as that will enable your enamel to
reharden.
Thus, the aim of this study was to evaluate whether repeated applications of 3 different enamel surface treatments can
reharden softened bovine enamel, and to compare between these treat-ments in resisting the demineralization process caused by frequent exposure to cola drink every 3 days over a period of 12 days.
"Acid erosion can damage enamel and discolor teeth."The toothpaste contains a special ingredient for tooth sensitivity and is available in a children's formula -- the first pediatric toothpaste designed to help
reharden children's tooth enamel.Listerine, the top-selling mouthwash, continues to add to its lineup, bringing out Listerine Total Care Anticavity Mouthwash earlier this year and recently introducing Listerine Whitening plus Fluoride Rinse.
Lignin is melted and begins to
reharden at 160[degrees]C.
If the new-tempered edge does not hold up you have a higher-carbon steel that will hold an edge at "straw," or 470[degrees]F
Reharden and retemper, but immerse the blank completely at 450[degrees]--when the last band of purple-steel blue reaches the edge.
Sometimes ash will melt, then
reharden into clinkers--clinkers can clog the combustion chamber, and they need to be removed promptly when they occur.
In fact, many old London pattern anvils that have been through a fire have lost their rebound because they have not been
rehardened, making them less effective than a simple block of steel.
Indeed, when smearing occurs, the friction caused by roller and raceway sliding can generate temperatures that heat surfaces to such a degree that the contact area melts and subsequently
rehardens. As a result, localised stress concentrations can lead to surface cracking or flaking.
(49) President Roosevelt, however, soon held a press conference at which he emphatically denounced a federal sales tax; if his opposition had softened as of his January Budget Message, it seemed to have
rehardened by his April press conference.