Aleksandra Piszko

[Aleksandra Piszko @A_Piszko]

@TimothyELDougl1 @ukplbioinspired Thank you for this question! It is composed of NaCl, KCl, Na2HPO4, NaHCO3, KSCN and urea (CH4N2O). I can send exact quantitative composition later this week.

[Aleksandra Piszko @A_Piszko]

My poster regarding biomaterials for teeth sealing for #UKPLUABioinspired Conference. @ukplbioinspired

[Aleksandra Piszko @A_Piszko]

@ukplbioinspired They usually contain fluoride in the form of fluorosilicate glass or ytterbium trifluoride.

[Aleksandra Piszko @A_Piszko]

@ukplbioinspired Thank you for your question!
To briefly answer, it is important to say, that usually, pH in the oral cavity is 7 but after a meal (especially rich in sugars) it decreases towards more acidic. It is clearly demonstrated by Stephan's curve.

[Aleksandra Piszko @A_Piszko]

@ukplbioinspired All evaluated sealants are commonly used, but availability of their chemical formulas is various. They are based on methacrylate derivatives as a matrix and have different additions, not always precisely presented.

[Aleksandra Piszko @A_Piszko]

@ukplbioinspired In low pH defined as critical for enamel, processes of demineralization of tooth's tissues begin. It is important to evaluate what will be the fluoride release in different pH. Probably, changes of pH also affect composite materials as they imitate teeth's tissues.